brw_blorp_blit.cpp revision 36bc0fe4f2e90ea9efa19940f477472dad6fb18f
1506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/* 2506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Copyright © 2012 Intel Corporation 3506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 4506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Permission is hereby granted, free of charge, to any person obtaining a 5506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * copy of this software and associated documentation files (the "Software"), 6506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * to deal in the Software without restriction, including without limitation 7506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * and/or sell copies of the Software, and to permit persons to whom the 9506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Software is furnished to do so, subject to the following conditions: 10506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 11506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * The above copyright notice and this permission notice (including the next 12506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * paragraph) shall be included in all copies or substantial portions of the 13506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Software. 14506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 15506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * IN THE SOFTWARE. 22506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 23506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 24506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "main/teximage.h" 25c738ea1191cd1b5a0dc60b0e6d05fd918083e961Paul Berry#include "main/fbobject.h" 26506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 27506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "glsl/ralloc.h" 28506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 29506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "intel_fbo.h" 30506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 31506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "brw_blorp.h" 32506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "brw_context.h" 33506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "brw_eu.h" 34506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "brw_state.h" 35506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 36506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 37506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 38506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Helper function for handling mirror image blits. 39506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 40506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If coord0 > coord1, swap them and invert the "mirror" boolean. 41506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 42506d70be21cd3469118de89297cba0c0f709c1aePaul Berrystatic inline void 43506d70be21cd3469118de89297cba0c0f709c1aePaul Berryfixup_mirroring(bool &mirror, GLint &coord0, GLint &coord1) 44506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 45506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (coord0 > coord1) { 46506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mirror = !mirror; 47506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint tmp = coord0; 48506d70be21cd3469118de89297cba0c0f709c1aePaul Berry coord0 = coord1; 49506d70be21cd3469118de89297cba0c0f709c1aePaul Berry coord1 = tmp; 50506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 51506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 52506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 53506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 5447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry/** 5547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * Adjust {src,dst}_x{0,1} to account for clipping and scissoring of 5647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * destination coordinates. 5747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * 5847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * Return true if there is still blitting to do, false if all pixels got 5947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * rejected by the clip and/or scissor. 6047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * 6147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * For clarity, the nomenclature of this function assumes we are clipping and 6247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * scissoring the X coordinate; the exact same logic applies for Y 6347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * coordinates. 6475f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry * 6575f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry * Note: this function may also be used to account for clipping of source 6675f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry * coordinates, by swapping the roles of src and dst. 6747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry */ 6847b64c9290d54f78e5a20e378593977cd47e285fPaul Berrystatic inline bool 6947b64c9290d54f78e5a20e378593977cd47e285fPaul Berryclip_or_scissor(bool mirror, GLint &src_x0, GLint &src_x1, GLint &dst_x0, 7047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry GLint &dst_x1, GLint fb_xmin, GLint fb_xmax) 7147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry{ 7247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* If we are going to scissor everything away, stop. */ 7347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (!(fb_xmin < fb_xmax && 7447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry dst_x0 < fb_xmax && 7547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry fb_xmin < dst_x1 && 7647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry dst_x0 < dst_x1)) { 7747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry return false; 7847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 7947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 8047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* Clip the destination rectangle, and keep track of how many pixels we 8147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * clipped off of the left and right sides of it. 8247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry */ 8347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry GLint pixels_clipped_left = 0; 8447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry GLint pixels_clipped_right = 0; 8547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (dst_x0 < fb_xmin) { 8647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry pixels_clipped_left = fb_xmin - dst_x0; 8747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry dst_x0 = fb_xmin; 8847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 8947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (fb_xmax < dst_x1) { 9047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry pixels_clipped_right = dst_x1 - fb_xmax; 9147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry dst_x1 = fb_xmax; 9247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 9347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 9447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* If we are mirrored, then before applying pixels_clipped_{left,right} to 9547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * the source coordinates, we need to flip them to account for the 9647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * mirroring. 9747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry */ 9847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (mirror) { 9947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry GLint tmp = pixels_clipped_left; 10047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry pixels_clipped_left = pixels_clipped_right; 10147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry pixels_clipped_right = tmp; 10247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 10347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 10447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* Adjust the source rectangle to remove the pixels corresponding to those 10547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * that were clipped/scissored out of the destination rectangle. 10647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry */ 10747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry src_x0 += pixels_clipped_left; 10847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry src_x1 -= pixels_clipped_right; 10947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 11047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry return true; 11147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry} 11247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 11347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 114fa1d267beb4adb542ea90b805306599f602c38d2Paul Berrystatic struct intel_mipmap_tree * 1155c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berryfind_miptree(GLbitfield buffer_bit, struct intel_renderbuffer *irb) 116fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry{ 117fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry struct intel_mipmap_tree *mt = irb->mt; 118fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry if (buffer_bit == GL_STENCIL_BUFFER_BIT && mt->stencil_mt) 119fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry mt = mt->stencil_mt; 120fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry return mt; 121fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry} 122fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 1236cc9df331b4799715b31d7ec606ad09fa914e260Chad Versacevoid 1246cc9df331b4799715b31d7ec606ad09fa914e260Chad Versacebrw_blorp_blit_miptrees(struct intel_context *intel, 1256cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace struct intel_mipmap_tree *src_mt, 126e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry unsigned src_level, unsigned src_layer, 1276cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace struct intel_mipmap_tree *dst_mt, 128e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry unsigned dst_level, unsigned dst_layer, 1296cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace int src_x0, int src_y0, 1306cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace int dst_x0, int dst_y0, 1316cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace int dst_x1, int dst_y1, 1326cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace bool mirror_x, bool mirror_y) 1336cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace{ 1346cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace brw_blorp_blit_params params(brw_context(&intel->ctx), 135e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry src_mt, src_level, src_layer, 136e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry dst_mt, dst_level, dst_layer, 1376cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace src_x0, src_y0, 1386cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace dst_x0, dst_y0, 1396cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace dst_x1, dst_y1, 1406cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace mirror_x, mirror_y); 1416cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace brw_blorp_exec(intel, ¶ms); 1426cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace} 143fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 144fa1d267beb4adb542ea90b805306599f602c38d2Paul Berrystatic void 145fa1d267beb4adb542ea90b805306599f602c38d2Paul Berrydo_blorp_blit(struct intel_context *intel, GLbitfield buffer_bit, 1465c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry struct intel_renderbuffer *src_irb, 1475c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry struct intel_renderbuffer *dst_irb, 148fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry GLint srcX0, GLint srcY0, 149fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, 150fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry bool mirror_x, bool mirror_y) 151fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry{ 152fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Find source/dst miptrees */ 1535c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry struct intel_mipmap_tree *src_mt = find_miptree(buffer_bit, src_irb); 1545c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry struct intel_mipmap_tree *dst_mt = find_miptree(buffer_bit, dst_irb); 155fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 156fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Get ready to blit. This includes depth resolving the src and dst 157fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry * buffers if necessary. 158fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry */ 1595c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry intel_renderbuffer_resolve_depth(intel, src_irb); 1605c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry intel_renderbuffer_resolve_depth(intel, dst_irb); 161fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 162fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Do the blit */ 163e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry brw_blorp_blit_miptrees(intel, 164e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry src_mt, src_irb->mt_level, src_irb->mt_layer, 165e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry dst_mt, dst_irb->mt_level, dst_irb->mt_layer, 1666cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace srcX0, srcY0, dstX0, dstY0, dstX1, dstY1, 1676cc9df331b4799715b31d7ec606ad09fa914e260Chad Versace mirror_x, mirror_y); 168fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 1695c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry intel_renderbuffer_set_needs_hiz_resolve(dst_irb); 1705c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry intel_renderbuffer_set_needs_downsample(dst_irb); 171fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry} 172fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 173fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 174fa1d267beb4adb542ea90b805306599f602c38d2Paul Berrystatic bool 1755c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berryformats_match(GLbitfield buffer_bit, struct intel_renderbuffer *src_irb, 1765c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry struct intel_renderbuffer *dst_irb) 177fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry{ 178fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Note: don't just check gl_renderbuffer::Format, because in some cases 179fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry * multiple gl_formats resolve to the same native type in the miptree (for 180fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry * example MESA_FORMAT_X8_Z24 and MESA_FORMAT_S8_Z24), and we can blit 181fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry * between those formats. 182fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry */ 1835c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry return find_miptree(buffer_bit, src_irb)->format == 1845c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry find_miptree(buffer_bit, dst_irb)->format; 185fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry} 186fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 187fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 188506d70be21cd3469118de89297cba0c0f709c1aePaul Berrystatic bool 189506d70be21cd3469118de89297cba0c0f709c1aePaul Berrytry_blorp_blit(struct intel_context *intel, 190506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, 191506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, 192506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLenum filter, GLbitfield buffer_bit) 193506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 194506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct gl_context *ctx = &intel->ctx; 195506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 196506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Sync up the state of window system buffers. We need to do this before 197506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * we go looking for the buffers. 198506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 199506d70be21cd3469118de89297cba0c0f709c1aePaul Berry intel_prepare_render(intel); 200506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 201506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const struct gl_framebuffer *read_fb = ctx->ReadBuffer; 202506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const struct gl_framebuffer *draw_fb = ctx->DrawBuffer; 203506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 204506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Detect if the blit needs to be mirrored */ 205506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool mirror_x = false, mirror_y = false; 206506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_x, srcX0, srcX1); 207506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_x, dstX0, dstX1); 208506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_y, srcY0, srcY1); 209506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_y, dstY0, dstY1); 210506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 211506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Make sure width and height match */ 212da54d2e576426122009be083ecbfb9eefd8a3799Paul Berry if (srcX1 - srcX0 != dstX1 - dstX0) return false; 213da54d2e576426122009be083ecbfb9eefd8a3799Paul Berry if (srcY1 - srcY0 != dstY1 - dstY0) return false; 214506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 21547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* If the destination rectangle needs to be clipped or scissored, do so. 216506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 21747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (!(clip_or_scissor(mirror_x, srcX0, srcX1, dstX0, dstX1, 21847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry draw_fb->_Xmin, draw_fb->_Xmax) && 21947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry clip_or_scissor(mirror_y, srcY0, srcY1, dstY0, dstY1, 22047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry draw_fb->_Ymin, draw_fb->_Ymax))) { 22147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* Everything got clipped/scissored away, so the blit was successful. */ 22247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry return true; 22347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 22447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 22575f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry /* If the source rectangle needs to be clipped or scissored, do so. */ 22675f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry if (!(clip_or_scissor(mirror_x, dstX0, dstX1, srcX0, srcX1, 22775f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry 0, read_fb->Width) && 22875f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry clip_or_scissor(mirror_y, dstY0, dstY1, srcY0, srcY1, 22975f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry 0, read_fb->Height))) { 23075f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry /* Everything got clipped/scissored away, so the blit was successful. */ 23175f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry return true; 23275f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry } 233506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 2340dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry /* Account for the fact that in the system framebuffer, the origin is at 2350dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry * the lower left. 2360dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry */ 237c738ea1191cd1b5a0dc60b0e6d05fd918083e961Paul Berry if (_mesa_is_winsys_fbo(read_fb)) { 2380dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry GLint tmp = read_fb->Height - srcY0; 2390dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry srcY0 = read_fb->Height - srcY1; 2400dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry srcY1 = tmp; 2410dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry mirror_y = !mirror_y; 2420dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry } 243c738ea1191cd1b5a0dc60b0e6d05fd918083e961Paul Berry if (_mesa_is_winsys_fbo(draw_fb)) { 2440dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry GLint tmp = draw_fb->Height - dstY0; 2450dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry dstY0 = draw_fb->Height - dstY1; 2460dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry dstY1 = tmp; 2470dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry mirror_y = !mirror_y; 2480dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry } 2490dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry 250fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Find buffers */ 2515c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry struct intel_renderbuffer *src_irb; 2525c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry struct intel_renderbuffer *dst_irb; 253fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry switch (buffer_bit) { 254fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry case GL_COLOR_BUFFER_BIT: 2555c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry src_irb = intel_renderbuffer(read_fb->_ColorReadBuffer); 256ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry for (unsigned i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; ++i) { 2575c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry dst_irb = intel_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[i]); 2585c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry if (dst_irb && !formats_match(buffer_bit, src_irb, dst_irb)) 259ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry return false; 260ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry } 261ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry for (unsigned i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; ++i) { 2625c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry dst_irb = intel_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[i]); 2635c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry do_blorp_blit(intel, buffer_bit, src_irb, dst_irb, srcX0, srcY0, 264ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry dstX0, dstY0, dstX1, dstY1, mirror_x, mirror_y); 265ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry } 266fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry break; 267fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry case GL_DEPTH_BUFFER_BIT: 2685c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry src_irb = 2695c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry intel_renderbuffer(read_fb->Attachment[BUFFER_DEPTH].Renderbuffer); 2705c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry dst_irb = 2715c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry intel_renderbuffer(draw_fb->Attachment[BUFFER_DEPTH].Renderbuffer); 2725c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry if (!formats_match(buffer_bit, src_irb, dst_irb)) 273fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry return false; 2745c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry do_blorp_blit(intel, buffer_bit, src_irb, dst_irb, srcX0, srcY0, 275fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry dstX0, dstY0, dstX1, dstY1, mirror_x, mirror_y); 276fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry break; 277fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry case GL_STENCIL_BUFFER_BIT: 2785c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry src_irb = 2795c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry intel_renderbuffer(read_fb->Attachment[BUFFER_STENCIL].Renderbuffer); 2805c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry dst_irb = 2815c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry intel_renderbuffer(draw_fb->Attachment[BUFFER_STENCIL].Renderbuffer); 2825c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry if (!formats_match(buffer_bit, src_irb, dst_irb)) 283fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry return false; 2845c66640ac7c271a96f66f4cb49adad54eb58cc47Paul Berry do_blorp_blit(intel, buffer_bit, src_irb, dst_irb, srcX0, srcY0, 285fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry dstX0, dstY0, dstX1, dstY1, mirror_x, mirror_y); 286fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry break; 287fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry default: 288fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry assert(false); 289fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry } 290506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 291506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return true; 292506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 293506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 294506d70be21cd3469118de89297cba0c0f709c1aePaul BerryGLbitfield 295506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_framebuffer(struct intel_context *intel, 296506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, 297506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, 298506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLbitfield mask, GLenum filter) 299506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 300b08545199ac8a01392a805f158d22cc03060a6fbPaul Berry /* BLORP is not supported before Gen6. */ 301b08545199ac8a01392a805f158d22cc03060a6fbPaul Berry if (intel->gen < 6) 302506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return mask; 303506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 304506d70be21cd3469118de89297cba0c0f709c1aePaul Berry static GLbitfield buffer_bits[] = { 305506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GL_COLOR_BUFFER_BIT, 306506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GL_DEPTH_BUFFER_BIT, 307506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GL_STENCIL_BUFFER_BIT, 308506d70be21cd3469118de89297cba0c0f709c1aePaul Berry }; 309506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 310506d70be21cd3469118de89297cba0c0f709c1aePaul Berry for (unsigned int i = 0; i < ARRAY_SIZE(buffer_bits); ++i) { 311506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if ((mask & buffer_bits[i]) && 312506d70be21cd3469118de89297cba0c0f709c1aePaul Berry try_blorp_blit(intel, 313506d70be21cd3469118de89297cba0c0f709c1aePaul Berry srcX0, srcY0, srcX1, srcY1, 314506d70be21cd3469118de89297cba0c0f709c1aePaul Berry dstX0, dstY0, dstX1, dstY1, 315506d70be21cd3469118de89297cba0c0f709c1aePaul Berry filter, buffer_bits[i])) { 316506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mask &= ~buffer_bits[i]; 317506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 318506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 319506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 320506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return mask; 321506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 322506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 323665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 324665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry/** 325665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry * Enum to specify the order of arguments in a sampler message 326665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry */ 327665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berryenum sampler_message_arg 328665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry{ 329665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_FLOAT, 330665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_V_FLOAT, 331665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 332665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_V_INT, 333233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_SI_INT, 3344ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_MCS_INT, 335233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, 336665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry}; 337665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 338506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 339506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Generator for WM programs used in BLORP blits. 340506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 341506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * The bulk of the work done by the WM program is to wrap and unwrap the 342506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinate transformations used by the hardware to store surfaces in 34319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * memory. The hardware transforms a pixel location (X, Y, S) (where S is the 34419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * sample index for a multisampled surface) to a memory offset by the 34519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * following formulas: 346506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3478b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * offset = tile(tiling_format, encode_msaa(num_samples, layout, X, Y, S)) 3488b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * (X, Y, S) = decode_msaa(num_samples, layout, detile(tiling_format, offset)) 34919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 3501bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * For a single-sampled surface, or for a multisampled surface using 3511bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * INTEL_MSAA_LAYOUT_UMS, encode_msaa() and decode_msaa are the identity 3521bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * function: 35319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 3541bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * encode_msaa(1, NONE, X, Y, 0) = (X, Y, 0) 3551bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * decode_msaa(1, NONE, X, Y, 0) = (X, Y, 0) 3561bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * encode_msaa(n, UMS, X, Y, S) = (X, Y, S) 3571bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * decode_msaa(n, UMS, X, Y, S) = (X, Y, S) 35819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 3591bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * For a 4x multisampled surface using INTEL_MSAA_LAYOUT_IMS, encode_msaa() 3601bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * embeds the sample number into bit 1 of the X and Y coordinates: 36119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 3621bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * encode_msaa(4, IMS, X, Y, S) = (X', Y', 0) 36319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * where X' = (X & ~0b1) << 1 | (S & 0b1) << 1 | (X & 0b1) 36419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Y' = (Y & ~0b1 ) << 1 | (S & 0b10) | (Y & 0b1) 3651bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * decode_msaa(4, IMS, X, Y, 0) = (X', Y', S) 36619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * where X' = (X & ~0b11) >> 1 | (X & 0b1) 36719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Y' = (Y & ~0b11) >> 1 | (Y & 0b1) 36819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * S = (Y & 0b10) | (X & 0b10) >> 1 369506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3707fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * For an 8x multisampled surface using INTEL_MSAA_LAYOUT_IMS, encode_msaa() 3717fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * embeds the sample number into bits 1 and 2 of the X coordinate and bit 1 of 3727fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * the Y coordinate: 3737fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * 3747fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * encode_msaa(8, IMS, X, Y, S) = (X', Y', 0) 3757fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b1) << 2 | (S & 0b100) | (S & 0b1) << 1 | (X & 0b1) 3767fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b1) << 1 | (S & 0b10) | (Y & 0b1) 3777fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * decode_msaa(8, IMS, X, Y, 0) = (X', Y', S) 3787fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b111) >> 2 | (X & 0b1) 3797fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b11) >> 1 | (Y & 0b1) 3807fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * S = (X & 0b100) | (Y & 0b10) | (X & 0b10) >> 1 3817fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * 382506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * For X tiling, tile() combines together the low-order bits of the X and Y 383506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates in the pattern 0byyyxxxxxxxxx, creating 4k tiles that are 512 384506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * bytes wide and 8 rows high: 385506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3868b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(x_tiled, X, Y, S) = A 387506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = tile_num << 12 | offset 3888b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile_num = (Y' >> 3) * tile_pitch + (X' >> 9) 3898b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * offset = (Y' & 0b111) << 9 390506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X & 0b111111111) 391506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp 3928b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 3938b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(x_tiled, A) = (X, Y, S) 394506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp 3958b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch 3968b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y' / qpitch 3978b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = (tile_num / tile_pitch) << 3 3988b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b111000000000) >> 9 399506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (tile_num % tile_pitch) << 9 400506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b111111111) 401506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 402506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (In all tiling formulas, cpp is the number of bytes occupied by a single 4038b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * sample ("chars per pixel"), tile_pitch is the number of 4k tiles required 4048b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * to fill the width of the surface, and qpitch is the spacing (in rows) 4058b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * between array slices). 406506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 407506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * For Y tiling, tile() combines together the low-order bits of the X and Y 408506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates in the pattern 0bxxxyyyyyxxxx, creating 4k tiles that are 128 409506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * bytes wide and 32 rows high: 410506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 4118b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(y_tiled, X, Y, S) = A 412506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = tile_num << 12 | offset 4138b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile_num = (Y' >> 5) * tile_pitch + (X' >> 7) 414506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * offset = (X' & 0b1110000) << 5 415506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (Y' & 0b11111) << 4 416506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b1111) 417506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp 4188b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 4198b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(y_tiled, A) = (X, Y, S) 420506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp 4218b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch 4228b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y' / qpitch 4238b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = (tile_num / tile_pitch) << 5 4248b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b111110000) >> 4 425506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (tile_num % tile_pitch) << 7 426506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b111000000000) >> 5 427506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b1111) 428506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 429506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * For W tiling, tile() combines together the low-order bits of the X and Y 430506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates in the pattern 0bxxxyyyyxyxyx, creating 4k tiles that are 64 431506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * bytes wide and 64 rows high (note that W tiling is only used for stencil 4328b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * buffers, which always have cpp = 1 and S=0): 433506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 4348b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(w_tiled, X, Y, S) = A 435506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = tile_num << 12 | offset 4368b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile_num = (Y' >> 6) * tile_pitch + (X' >> 6) 437506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * offset = (X' & 0b111000) << 6 4388b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (Y' & 0b111100) << 3 439506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b100) << 2 4408b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (Y' & 0b10) << 2 441506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b10) << 1 4428b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (Y' & 0b1) << 1 443506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b1) 444506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp = X 4458b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 4468b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(w_tiled, A) = (X, Y, S) 447506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp = X' 4488b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch = Y' 4498b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y / qpitch = 0 4508b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = (tile_num / tile_pitch) << 6 4518b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b111100000) >> 3 4528b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b1000) >> 2 4538b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b10) >> 1 454506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (tile_num % tile_pitch) << 6 455506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b111000000000) >> 6 456506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b10000) >> 2 457506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b100) >> 1 458506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b1) 459506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 460506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Finally, for a non-tiled surface, tile() simply combines together the X and 461506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y coordinates in the natural way: 462506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 4638b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(untiled, X, Y, S) = A 464506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = Y * pitch + X' 465506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp 4668b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 4678b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(untiled, A) = (X, Y, S) 468506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp 4698b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch 4708b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y' / qpitch 471506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = A % pitch 4728b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = A / pitch 473506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 474506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (In these formulas, pitch is the number of bytes occupied by a single row 47519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * of samples). 476506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 477506d70be21cd3469118de89297cba0c0f709c1aePaul Berryclass brw_blorp_blit_program 478506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 479506d70be21cd3469118de89297cba0c0f709c1aePaul Berrypublic: 480506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_blit_program(struct brw_context *brw, 481506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const brw_blorp_blit_prog_key *key); 482506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ~brw_blorp_blit_program(); 483506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 484506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const GLuint *compile(struct brw_context *brw, GLuint *program_size); 485506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 486506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_prog_data prog_data; 487506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 488506d70be21cd3469118de89297cba0c0f709c1aePaul Berryprivate: 489506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void alloc_regs(); 490506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void alloc_push_const_regs(int base_reg); 491506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void compute_frag_coords(); 492506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void translate_tiling(bool old_tiled_w, bool new_tiled_w); 4931bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry void encode_msaa(unsigned num_samples, intel_msaa_layout layout); 4941bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry void decode_msaa(unsigned num_samples, intel_msaa_layout layout); 495506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void kill_if_outside_dst_rect(); 496506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void translate_dst_to_src(); 49719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry void single_to_blend(); 49817eae9762cdd6cfa69a060001e26113dfc0d7c86Paul Berry void manual_blend(unsigned num_samples); 4994725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry void sample(struct brw_reg dst); 5004725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry void texel_fetch(struct brw_reg dst); 5014ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry void mcs_fetch(); 502665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry void expand_to_32_bits(struct brw_reg src, struct brw_reg dst); 5034725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry void texture_lookup(struct brw_reg dst, GLuint msg_type, 5044725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry const sampler_message_arg *args, int num_args); 505506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void render_target_write(); 506506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 507b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /** 508b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * Base-2 logarithm of the maximum number of samples that can be blended. 509b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry */ 51017eae9762cdd6cfa69a060001e26113dfc0d7c86Paul Berry static const unsigned LOG2_MAX_BLEND_SAMPLES = 3; 511b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 512506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void *mem_ctx; 513506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_context *brw; 514506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const brw_blorp_blit_prog_key *key; 515506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_compile func; 516506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 517506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Thread dispatch header */ 518506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg R0; 519506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 520506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Pixel X/Y coordinates (always in R1). */ 521506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg R1; 522506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 523506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Push constants */ 524506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_x0; 525506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_x1; 526506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_y0; 527506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_y1; 528506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct { 529506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg multiplier; 530506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg offset; 531506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } x_transform, y_transform; 532506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 533b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Data read from texture (4 vec16's per array element) */ 534b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry struct brw_reg texture_data[LOG2_MAX_BLEND_SAMPLES + 1]; 535506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 5364ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry /* Auxiliary storage for the contents of the MCS surface. 5374ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry * 5384ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry * Since the sampler always returns 8 registers worth of data, this is 8 5394ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry * registers wide, even though we only use the first 2 registers of it. 5404ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry */ 5414ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry struct brw_reg mcs_data; 5424ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry 543506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* X coordinates. We have two of them so that we can perform coordinate 544506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * transformations easily. 545506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 546506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg x_coords[2]; 547506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 548506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Y coordinates. We have two of them so that we can perform coordinate 549506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * transformations easily. 550506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 551506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg y_coords[2]; 552506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 553506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Which element of x_coords and y_coords is currently in use. 554506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 555506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int xy_coord_index; 556506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 55719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* True if, at the point in the program currently being compiled, the 55819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * sample index is known to be zero. 55919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 56019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry bool s_is_zero; 56119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 56219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Register storing the sample index when s_is_zero is false. */ 56319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry struct brw_reg sample_index; 56419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 565506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Temporaries */ 566506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg t1; 567506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg t2; 568506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 569665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry /* MRF used for sampling and render target writes */ 570506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint base_mrf; 571506d70be21cd3469118de89297cba0c0f709c1aePaul Berry}; 572506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 573506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::brw_blorp_blit_program( 574506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_context *brw, 575506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const brw_blorp_blit_prog_key *key) 576506d70be21cd3469118de89297cba0c0f709c1aePaul Berry : mem_ctx(ralloc_context(NULL)), 577506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw(brw), 578506d70be21cd3469118de89297cba0c0f709c1aePaul Berry key(key) 579506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 580506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_init_compile(brw, &func, mem_ctx); 581506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 582506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 583506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::~brw_blorp_blit_program() 584506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 585506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ralloc_free(mem_ctx); 586506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 587506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 588506d70be21cd3469118de89297cba0c0f709c1aePaul Berryconst GLuint * 589506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::compile(struct brw_context *brw, 590506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint *program_size) 591506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 59219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Sanity checks */ 59334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (key->dst_tiled_w && key->rt_samples > 0) { 59434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* If the destination image is W tiled and multisampled, then the thread 59534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * must be dispatched once per sample, not once per pixel. This is 59634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * necessary because after conversion between W and Y tiling, there's no 59719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * guarantee that all samples corresponding to a single pixel will still 59819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * be together. 59919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 60034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry assert(key->persample_msaa_dispatch); 60119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 60219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 60319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (key->blend) { 6044725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry /* We are blending, which means we won't have an opportunity to 6054725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry * translate the tiling and sample count for the texture surface. So 60619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the surface state for the texture must be configured with the correct 60719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * tiling and sample count. 60819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 60919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry assert(!key->src_tiled_w); 61019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry assert(key->tex_samples == key->src_samples); 6111bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(key->tex_layout == key->src_layout); 61219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry assert(key->tex_samples > 0); 61319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 61419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 61534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (key->persample_msaa_dispatch) { 61634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* It only makes sense to do persample dispatch if the render target is 61734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * configured as multisampled. 61834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry */ 61934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry assert(key->rt_samples > 0); 62034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } 62134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry 6221bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* Make sure layout is consistent with sample count */ 6231bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->tex_layout == INTEL_MSAA_LAYOUT_NONE) == 6241bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->tex_samples == 0)); 6251bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->rt_layout == INTEL_MSAA_LAYOUT_NONE) == 6261bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->rt_samples == 0)); 6271bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->src_layout == INTEL_MSAA_LAYOUT_NONE) == 6281bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->src_samples == 0)); 6291bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->dst_layout == INTEL_MSAA_LAYOUT_NONE) == 6301bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->dst_samples == 0)); 6318b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 63234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* Set up prog_data */ 63334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry memset(&prog_data, 0, sizeof(prog_data)); 63434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry prog_data.persample_msaa_dispatch = key->persample_msaa_dispatch; 63534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry 636506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_compression_control(&func, BRW_COMPRESSION_NONE); 637506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 638506d70be21cd3469118de89297cba0c0f709c1aePaul Berry alloc_regs(); 639506d70be21cd3469118de89297cba0c0f709c1aePaul Berry compute_frag_coords(); 640506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 641506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Render target and texture hardware don't support W tiling. */ 642506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const bool rt_tiled_w = false; 643506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const bool tex_tiled_w = false; 644506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 645506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* The address that data will be written to is determined by the 64619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * coordinates supplied to the WM thread and the tiling and sample count of 64719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the render target, according to the formula: 648506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 64919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (X, Y, S) = decode_msaa(rt_samples, detile(rt_tiling, offset)) 650506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 65119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * If the actual tiling and sample count of the destination surface are not 65219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the same as the configuration of the render target, then these 65319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * coordinates are wrong and we have to adjust them to compensate for the 65419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * difference. 655506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 65619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (rt_tiled_w != key->dst_tiled_w || 6578b1f467cce34340637e9baca4847fc5273cf7541Paul Berry key->rt_samples != key->dst_samples || 6581bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry key->rt_layout != key->dst_layout) { 6591bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry encode_msaa(key->rt_samples, key->rt_layout); 6608b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(rt_tiling, offset) */ 661506d70be21cd3469118de89297cba0c0f709c1aePaul Berry translate_tiling(rt_tiled_w, key->dst_tiled_w); 6628b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(dst_tiling, offset) */ 6631bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry decode_msaa(key->dst_samples, key->dst_layout); 66419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 665506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 66619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Now (X, Y, S) = decode_msaa(dst_samples, detile(dst_tiling, offset)). 667506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 66819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * That is: X, Y and S now contain the true coordinates and sample index of 66919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the data that the WM thread should output. 670506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 671506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If we need to kill pixels that are outside the destination rectangle, 672506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * now is the time to do it. 673506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 674506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 675506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (key->use_kill) 676506d70be21cd3469118de89297cba0c0f709c1aePaul Berry kill_if_outside_dst_rect(); 677506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 678506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Next, apply a translation to obtain coordinates in the source image. */ 679506d70be21cd3469118de89297cba0c0f709c1aePaul Berry translate_dst_to_src(); 680506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 68119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* If the source image is not multisampled, then we want to fetch sample 68219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * number 0, because that's the only sample there is. 683506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 68419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (key->src_samples == 0) 68519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry s_is_zero = true; 686506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 68719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* X, Y, and S are now the coordinates of the pixel in the source image 68819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * that we want to texture from. Exception: if we are blending, then S is 68919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * irrelevant, because we are going to fetch all samples. 690506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 69119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (key->blend) { 6924725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry if (brw->intel.gen == 6) { 6934725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry /* Gen6 hardware an automatically blend using the SAMPLE message */ 6944725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry single_to_blend(); 695b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry sample(texture_data[0]); 6964725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } else { 6974725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry /* Gen7+ hardware doesn't automaticaly blend. */ 69817eae9762cdd6cfa69a060001e26113dfc0d7c86Paul Berry manual_blend(key->src_samples); 6994725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 70019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } else { 70119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We aren't blending, which means we just want to fetch a single sample 70219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * from the source surface. The address that we want to fetch from is 70319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * related to the X, Y and S values according to the formula: 70419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 70519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (X, Y, S) = decode_msaa(src_samples, detile(src_tiling, offset)). 70619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 70719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * If the actual tiling and sample count of the source surface are not 70819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the same as the configuration of the texture, then we need to adjust 70919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the coordinates to compensate for the difference. 71019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 71119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (tex_tiled_w != key->src_tiled_w || 7128b1f467cce34340637e9baca4847fc5273cf7541Paul Berry key->tex_samples != key->src_samples || 7131bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry key->tex_layout != key->src_layout) { 7141bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry encode_msaa(key->src_samples, key->src_layout); 7158b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(src_tiling, offset) */ 71619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry translate_tiling(key->src_tiled_w, tex_tiled_w); 7178b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(tex_tiling, offset) */ 7181bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry decode_msaa(key->tex_samples, key->tex_layout); 71919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 720506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 72119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Now (X, Y, S) = decode_msaa(tex_samples, detile(tex_tiling, offset)). 72219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 72319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * In other words: X, Y, and S now contain values which, when passed to 72419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the texturing unit, will cause data to be read from the correct 72519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * memory location. So we can fetch the texel now. 72619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 7274ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry if (key->tex_layout == INTEL_MSAA_LAYOUT_CMS) 7284ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry mcs_fetch(); 729b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry texel_fetch(texture_data[0]); 73019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 73119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 73219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Finally, write the fetched (or blended) value to the render target and 73319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * terminate the thread. 734506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 735506d70be21cd3469118de89297cba0c0f709c1aePaul Berry render_target_write(); 736506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return brw_get_program(&func, program_size); 737506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 738506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 739506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 740506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::alloc_push_const_regs(int base_reg) 741506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 742506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define CONST_LOC(name) offsetof(brw_blorp_wm_push_constants, name) 743506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define ALLOC_REG(name) \ 744506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->name = \ 745506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_uw1_reg(BRW_GENERAL_REGISTER_FILE, base_reg, CONST_LOC(name) / 2) 746506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 747506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_x0); 748506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_x1); 749506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_y0); 750506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_y1); 751506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(x_transform.multiplier); 752506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(x_transform.offset); 753506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(y_transform.multiplier); 754506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(y_transform.offset); 755506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef CONST_LOC 756506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef ALLOC_REG 757506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 758506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 759506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 760506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::alloc_regs() 761506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 762506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int reg = 0; 763506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->R0 = retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW); 764506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->R1 = retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW); 765506d70be21cd3469118de89297cba0c0f709c1aePaul Berry prog_data.first_curbe_grf = reg; 766506d70be21cd3469118de89297cba0c0f709c1aePaul Berry alloc_push_const_regs(reg); 767506d70be21cd3469118de89297cba0c0f709c1aePaul Berry reg += BRW_BLORP_NUM_PUSH_CONST_REGS; 768b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry for (unsigned i = 0; i < ARRAY_SIZE(texture_data); ++i) { 769e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry this->texture_data[i] = 770e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry retype(vec16(brw_vec8_grf(reg, 0)), key->texture_data_type); 771e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry reg += 8; 772b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } 7734ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry this->mcs_data = 7744ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry retype(brw_vec8_grf(reg, 0), BRW_REGISTER_TYPE_UD); reg += 8; 775506d70be21cd3469118de89297cba0c0f709c1aePaul Berry for (int i = 0; i < 2; ++i) { 776506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->x_coords[i] 777506d70be21cd3469118de89297cba0c0f709c1aePaul Berry = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 778506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->y_coords[i] 779506d70be21cd3469118de89297cba0c0f709c1aePaul Berry = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 780506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 781506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->xy_coord_index = 0; 78219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry this->sample_index 78319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 784506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->t1 = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 785506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->t2 = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 786506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 787b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Make sure we didn't run out of registers */ 788b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(reg <= GEN7_MRF_HACK_START); 789b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 790506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int mrf = 2; 791506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->base_mrf = mrf; 792506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 793506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 794506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/* In the code that follows, X and Y can be used to quickly refer to the 795506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * active elements of x_coords and y_coords, and Xp and Yp ("X prime" and "Y 796506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * prime") to the inactive elements. 79719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 79819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * S can be used to quickly refer to sample_index. 799506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 800506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define X x_coords[xy_coord_index] 801506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define Y y_coords[xy_coord_index] 802506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define Xp x_coords[!xy_coord_index] 803506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define Yp y_coords[!xy_coord_index] 80419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry#define S sample_index 805506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 806506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/* Quickly swap the roles of (X, Y) and (Xp, Yp). Saves us from having to do 807506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * MOVs to transfor (Xp, Yp) to (X, Y) after a coordinate transformation. 808506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 809506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define SWAP_XY_AND_XPYP() xy_coord_index = !xy_coord_index; 810506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 811506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 812506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to compute the X and Y coordinates of the pixels being rendered 813506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * by this WM invocation. 814506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 815506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Assuming the render target is set up for Y tiling, these (X, Y) values are 816506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * related to the address offset where outputs will be written by the formula: 817506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 818506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (X, Y, S) = decode_msaa(detile(offset)). 819506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 820506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (See brw_blorp_blit_program). 821506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 822506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 823506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::compute_frag_coords() 824506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 825506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* R1.2[15:0] = X coordinate of upper left pixel of subspan 0 (pixel 0) 826506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.3[15:0] = X coordinate of upper left pixel of subspan 1 (pixel 4) 827506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.4[15:0] = X coordinate of upper left pixel of subspan 2 (pixel 8) 828506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.5[15:0] = X coordinate of upper left pixel of subspan 3 (pixel 12) 829506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 830506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Pixels within a subspan are laid out in this arrangement: 831506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 0 1 832506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 2 3 833506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 834506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * So, to compute the coordinates of each pixel, we need to read every 2nd 835506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 16-bit value (vstride=2) from R1, starting at the 4th 16-bit value 836506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (suboffset=4), and duplicate each value 4 times (hstride=0, width=4). 837506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * In other words, the data we want to access is R1.4<2;4,0>UW. 838506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 839506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Then, we need to add the repeating sequence (0, 1, 0, 1, ...) to the 840506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * result, since pixels n+1 and n+3 are in the right half of the subspan. 841506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 842506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, X, stride(suboffset(R1, 4), 2, 4, 0), brw_imm_v(0x10101010)); 843506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 844506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Similarly, Y coordinates for subspans come from R1.2[31:16] through 845506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.5[31:16], so to get pixel Y coordinates we need to start at the 5th 846506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 16-bit value instead of the 4th (R1.5<2;4,0>UW instead of 847506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.4<2;4,0>UW). 848506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 849506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * And we need to add the repeating sequence (0, 0, 1, 1, ...), since 850506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * pixels n+2 and n+3 are in the bottom half of the subspan. 851506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 852506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, Y, stride(suboffset(R1, 5), 2, 4, 0), brw_imm_v(0x11001100)); 85319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 85434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (key->persample_msaa_dispatch) { 855619471dc322de80942f7dbb29a437890e48155c6Paul Berry switch (key->rt_samples) { 856619471dc322de80942f7dbb29a437890e48155c6Paul Berry case 4: 857619471dc322de80942f7dbb29a437890e48155c6Paul Berry /* The WM will be run in MSDISPMODE_PERSAMPLE with num_samples == 4. 858619471dc322de80942f7dbb29a437890e48155c6Paul Berry * Therefore, subspan 0 will represent sample 0, subspan 1 will 859619471dc322de80942f7dbb29a437890e48155c6Paul Berry * represent sample 1, and so on. 860619471dc322de80942f7dbb29a437890e48155c6Paul Berry * 861619471dc322de80942f7dbb29a437890e48155c6Paul Berry * So we need to populate S with the sequence (0, 0, 0, 0, 1, 1, 1, 862619471dc322de80942f7dbb29a437890e48155c6Paul Berry * 1, 2, 2, 2, 2, 3, 3, 3, 3). The easiest way to do this is to 863619471dc322de80942f7dbb29a437890e48155c6Paul Berry * populate a temporary variable with the sequence (0, 1, 2, 3), and 864619471dc322de80942f7dbb29a437890e48155c6Paul Berry * then copy from it using vstride=1, width=4, hstride=0. 865619471dc322de80942f7dbb29a437890e48155c6Paul Berry */ 866619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_MOV(&func, t1, brw_imm_v(0x3210)); 867619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_MOV(&func, S, stride(t1, 1, 4, 0)); 868619471dc322de80942f7dbb29a437890e48155c6Paul Berry break; 869619471dc322de80942f7dbb29a437890e48155c6Paul Berry case 8: { 870619471dc322de80942f7dbb29a437890e48155c6Paul Berry /* The WM will be run in MSDISPMODE_PERSAMPLE with num_samples == 8. 871619471dc322de80942f7dbb29a437890e48155c6Paul Berry * Therefore, subspan 0 will represent sample N (where N is 0 or 4), 872619471dc322de80942f7dbb29a437890e48155c6Paul Berry * subspan 1 will represent sample 1, and so on. We can find the 873619471dc322de80942f7dbb29a437890e48155c6Paul Berry * value of N by looking at R0.0 bits 7:6 ("Starting Sample Pair 874619471dc322de80942f7dbb29a437890e48155c6Paul Berry * Index") and multiplying by two (since samples are always delivered 875619471dc322de80942f7dbb29a437890e48155c6Paul Berry * in pairs). That is, we compute 2*((R0.0 & 0xc0) >> 6) == (R0.0 & 876619471dc322de80942f7dbb29a437890e48155c6Paul Berry * 0xc0) >> 5. 877619471dc322de80942f7dbb29a437890e48155c6Paul Berry * 878619471dc322de80942f7dbb29a437890e48155c6Paul Berry * Then we need to add N to the sequence (0, 0, 0, 0, 1, 1, 1, 1, 2, 879619471dc322de80942f7dbb29a437890e48155c6Paul Berry * 2, 2, 2, 3, 3, 3, 3), which we compute by populating a temporary 880619471dc322de80942f7dbb29a437890e48155c6Paul Berry * variable with the sequence (0, 1, 2, 3), and then reading from it 881619471dc322de80942f7dbb29a437890e48155c6Paul Berry * using vstride=1, width=4, hstride=0. 882619471dc322de80942f7dbb29a437890e48155c6Paul Berry */ 883619471dc322de80942f7dbb29a437890e48155c6Paul Berry struct brw_reg t1_ud1 = vec1(retype(t1, BRW_REGISTER_TYPE_UD)); 884619471dc322de80942f7dbb29a437890e48155c6Paul Berry struct brw_reg r0_ud1 = vec1(retype(R0, BRW_REGISTER_TYPE_UD)); 885619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_AND(&func, t1_ud1, r0_ud1, brw_imm_ud(0xc0)); 886619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_SHR(&func, t1_ud1, t1_ud1, brw_imm_ud(5)); 887619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_MOV(&func, t2, brw_imm_v(0x3210)); 888619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_ADD(&func, S, retype(t1_ud1, BRW_REGISTER_TYPE_UW), 889619471dc322de80942f7dbb29a437890e48155c6Paul Berry stride(t2, 1, 4, 0)); 890619471dc322de80942f7dbb29a437890e48155c6Paul Berry break; 891619471dc322de80942f7dbb29a437890e48155c6Paul Berry } 892619471dc322de80942f7dbb29a437890e48155c6Paul Berry default: 893619471dc322de80942f7dbb29a437890e48155c6Paul Berry assert(!"Unrecognized sample count in " 894619471dc322de80942f7dbb29a437890e48155c6Paul Berry "brw_blorp_blit_program::compute_frag_coords()"); 895619471dc322de80942f7dbb29a437890e48155c6Paul Berry break; 896619471dc322de80942f7dbb29a437890e48155c6Paul Berry } 89734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry s_is_zero = false; 89834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } else { 89934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* Either the destination surface is single-sampled, or the WM will be 90034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * run in MSDISPMODE_PERPIXEL (which causes a single fragment dispatch 90134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * per pixel). In either case, it's not meaningful to compute a sample 90234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * value. Just set it to 0. 90334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry */ 90434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry s_is_zero = true; 90534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } 906506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 907506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 908506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 909506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to compensate for the difference between Y and W tiling. 910506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 911506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * This code modifies the X and Y coordinates according to the formula: 912506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 9138b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * (X', Y', S') = detile(new_tiling, tile(old_tiling, X, Y, S)) 914506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 915506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (See brw_blorp_blit_program). 916506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 917506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * It can only translate between W and Y tiling, so new_tiling and old_tiling 918506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * are booleans where true represents W tiling and false represents Y tiling. 919506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 920506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 921506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::translate_tiling(bool old_tiled_w, bool new_tiled_w) 922506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 923506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (old_tiled_w == new_tiled_w) 924506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return; 925506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 9268b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* In the code that follows, we can safely assume that S = 0, because W 9271bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * tiling formats always use IMS layout. 9288b1f467cce34340637e9baca4847fc5273cf7541Paul Berry */ 9298b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 9308b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 931506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (new_tiled_w) { 932506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Given X and Y coordinates that describe an address using Y tiling, 933506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * translate to the X and Y coordinates that describe the same address 934506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * using W tiling. 935506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 936506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If we break down the low order bits of X and Y, using a 937506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * single letter to represent each low-order bit: 938506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 939506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X = A << 7 | 0bBCDEFGH 940506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y = J << 5 | 0bKLMNP (1) 941506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 942506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Then we can apply the Y tiling formula to see the memory offset being 943506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * addressed: 944506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 945506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * offset = (J * tile_pitch + A) << 12 | 0bBCDKLMNPEFGH (2) 946506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 947506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If we apply the W detiling formula to this memory location, that the 948506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * corresponding X' and Y' coordinates are: 949506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 950506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = A << 6 | 0bBCDPFH (3) 951506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y' = J << 6 | 0bKLMNEG 952506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 953506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Combining (1) and (3), we see that to transform (X, Y) to (X', Y'), 954506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * we need to make the following computation: 955506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 956506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (X & ~0b1011) >> 1 | (Y & 0b1) << 2 | X & 0b1 (4) 957506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y' = (Y & ~0b1) << 1 | (X & 0b1000) >> 2 | (X & 0b10) >> 1 958506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 959506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfff4)); /* X & ~0b1011 */ 960506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b1011) >> 1 */ 961506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 962506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(2)); /* (Y & 0b1) << 2 */ 963506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b1011) >> 1 | (Y & 0b1) << 2 */ 964506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 965506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Xp, t1, t2); 966506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffe)); /* Y & ~0b1 */ 967506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b1) << 1 */ 968506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(8)); /* X & 0b1000 */ 969506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(2)); /* (X & 0b1000) >> 2 */ 970506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (Y & ~0b1) << 1 | (X & 0b1000) >> 2 */ 971506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(2)); /* X & 0b10 */ 972506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(1)); /* (X & 0b10) >> 1 */ 973506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Yp, t1, t2); 974506d70be21cd3469118de89297cba0c0f709c1aePaul Berry SWAP_XY_AND_XPYP(); 975506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } else { 976506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Applying the same logic as above, but in reverse, we obtain the 977506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * formulas: 978506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 979506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (X & ~0b101) << 1 | (Y & 0b10) << 2 | (Y & 0b1) << 1 | X & 0b1 980506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y' = (Y & ~0b11) >> 1 | (X & 0b100) >> 2 981506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 982506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffa)); /* X & ~0b101 */ 983506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b101) << 1 */ 984506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, Y, brw_imm_uw(2)); /* Y & 0b10 */ 985506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(2)); /* (Y & 0b10) << 2 */ 986506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b101) << 1 | (Y & 0b10) << 2 */ 987506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 988506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(1)); /* (Y & 0b1) << 1 */ 989506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b101) << 1 | (Y & 0b10) << 2 990506d70be21cd3469118de89297cba0c0f709c1aePaul Berry | (Y & 0b1) << 1 */ 991506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 992506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Xp, t1, t2); 993506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffc)); /* Y & ~0b11 */ 994506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b11) >> 1 */ 995506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(4)); /* X & 0b100 */ 996506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(2)); /* (X & 0b100) >> 2 */ 997506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Yp, t1, t2); 998506d70be21cd3469118de89297cba0c0f709c1aePaul Berry SWAP_XY_AND_XPYP(); 999506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1000506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1001506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1002506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 100319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to compensate for the difference between MSAA and non-MSAA 100419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * surfaces. 100519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 100619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * This code modifies the X and Y coordinates according to the formula: 100719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 10087fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * (X', Y', S') = encode_msaa(num_samples, IMS, X, Y, S) 100919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 101019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (See brw_blorp_blit_program). 101119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 101219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 10131bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berrybrw_blorp_blit_program::encode_msaa(unsigned num_samples, 10141bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry intel_msaa_layout layout) 101519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 10161bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry switch (layout) { 10171bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_NONE: 10188b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* No translation necessary, and S should already be zero. */ 10198b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 10201bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 10211bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_CMS: 10221bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* We can't compensate for compressed layout since at this point in the 10231bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * program we haven't read from the MCS buffer. 10241bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 10251bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(!"Bad layout in encode_msaa"); 10261bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 10271bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_UMS: 102819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* No translation necessary. */ 10291bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 10301bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_IMS: 10317fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry switch (num_samples) { 10327fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry case 4: 10337fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry /* encode_msaa(4, IMS, X, Y, S) = (X', Y', 0) 10347fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b1) << 1 | (S & 0b1) << 1 | (X & 0b1) 10357fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b1) << 1 | (S & 0b10) | (Y & 0b1) 10367fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry */ 10377fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffe)); /* X & ~0b1 */ 10387fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry if (!s_is_zero) { 10397fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, S, brw_imm_uw(1)); /* S & 0b1 */ 10407fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b1) | (S & 0b1) */ 10417fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry } 10427fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b1) << 1 10437fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry | (S & 0b1) << 1 */ 10447fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 10457fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Xp, t1, t2); 10467fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffe)); /* Y & ~0b1 */ 10477fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b1) << 1 */ 10487fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry if (!s_is_zero) { 10497fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, S, brw_imm_uw(2)); /* S & 0b10 */ 10507fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (Y & ~0b1) << 1 | (S & 0b10) */ 10517fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry } 10527fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 10537fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Yp, t1, t2); 10547fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry break; 10557fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry case 8: 10567fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry /* encode_msaa(8, IMS, X, Y, S) = (X', Y', 0) 10577fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b1) << 2 | (S & 0b100) | (S & 0b1) << 1 10587fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * | (X & 0b1) 10597fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b1) << 1 | (S & 0b10) | (Y & 0b1) 10607fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry */ 10617fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffe)); /* X & ~0b1 */ 10627fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(2)); /* (X & ~0b1) << 2 */ 10637fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry if (!s_is_zero) { 10647fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, S, brw_imm_uw(4)); /* S & 0b100 */ 10657fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b1) << 2 | (S & 0b100) */ 10667fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, S, brw_imm_uw(1)); /* S & 0b1 */ 10677fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(1)); /* (S & 0b1) << 1 */ 10687fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b1) << 2 | (S & 0b100) 10697fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry | (S & 0b1) << 1 */ 10707fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry } 10717fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 10727fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Xp, t1, t2); 10737fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffe)); /* Y & ~0b1 */ 10747fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b1) << 1 */ 10757fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry if (!s_is_zero) { 10767fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, S, brw_imm_uw(2)); /* S & 0b10 */ 10777fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (Y & ~0b1) << 1 | (S & 0b10) */ 10787fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry } 10797fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 10807fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Yp, t1, t2); 10817fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry break; 108219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 108319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry SWAP_XY_AND_XPYP(); 10848b1f467cce34340637e9baca4847fc5273cf7541Paul Berry s_is_zero = true; 10851bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 108619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 108719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 108819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 108919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 109019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to compensate for the difference between MSAA and non-MSAA 109119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * surfaces. 109219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 109319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * This code modifies the X and Y coordinates according to the formula: 109419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 10957fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * (X', Y', S) = decode_msaa(num_samples, IMS, X, Y, S) 109619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 109719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (See brw_blorp_blit_program). 109819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 109919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 11001bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berrybrw_blorp_blit_program::decode_msaa(unsigned num_samples, 11011bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry intel_msaa_layout layout) 110219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 11031bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry switch (layout) { 11041bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_NONE: 11058b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* No translation necessary, and S should already be zero. */ 11068b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 11071bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 11081bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_CMS: 11091bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* We can't compensate for compressed layout since at this point in the 11101bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * program we don't have access to the MCS buffer. 11111bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 11121bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(!"Bad layout in encode_msaa"); 11131bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 11141bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_UMS: 111519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* No translation necessary. */ 11161bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 11171bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_IMS: 11188b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 11197fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry switch (num_samples) { 11207fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry case 4: 11217fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry /* decode_msaa(4, IMS, X, Y, 0) = (X', Y', S) 11227fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b11) >> 1 | (X & 0b1) 11237fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b11) >> 1 | (Y & 0b1) 11247fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * S = (Y & 0b10) | (X & 0b10) >> 1 11257fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry */ 11267fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffc)); /* X & ~0b11 */ 11277fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b11) >> 1 */ 11287fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 11297fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Xp, t1, t2); 11307fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffc)); /* Y & ~0b11 */ 11317fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b11) >> 1 */ 11327fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 11337fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Yp, t1, t2); 11347fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(2)); /* Y & 0b10 */ 11357fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(2)); /* X & 0b10 */ 11367fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(1)); /* (X & 0b10) >> 1 */ 11377fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, S, t1, t2); 11387fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry break; 11397fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry case 8: 11407fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry /* decode_msaa(8, IMS, X, Y, 0) = (X', Y', S) 11417fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b111) >> 2 | (X & 0b1) 11427fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b11) >> 1 | (Y & 0b1) 11437fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * S = (X & 0b100) | (Y & 0b10) | (X & 0b10) >> 1 11447fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry */ 11457fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfff8)); /* X & ~0b111 */ 11467fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(2)); /* (X & ~0b111) >> 2 */ 11477fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 11487fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Xp, t1, t2); 11497fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffc)); /* Y & ~0b11 */ 11507fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b11) >> 1 */ 11517fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 11527fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Yp, t1, t2); 11537fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, X, brw_imm_uw(4)); /* X & 0b100 */ 11547fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(2)); /* Y & 0b10 */ 11557fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (X & 0b100) | (Y & 0b10) */ 11567fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(2)); /* X & 0b10 */ 11577fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(1)); /* (X & 0b10) >> 1 */ 11587fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, S, t1, t2); 11597fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry break; 11607fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry } 116119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry s_is_zero = false; 116219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry SWAP_XY_AND_XPYP(); 11631bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 116419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 116519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 116619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 116719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 1168506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code that kills pixels whose X and Y coordinates are outside the 1169506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * boundary of the rectangle defined by the push constants (dst_x0, dst_y0, 1170506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * dst_x1, dst_y1). 1171506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1172506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1173506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::kill_if_outside_dst_rect() 1174506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1175506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg f0 = brw_flag_reg(); 1176506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg g1 = retype(brw_vec1_grf(1, 7), BRW_REGISTER_TYPE_UW); 1177506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg null16 = vec16(retype(brw_null_reg(), BRW_REGISTER_TYPE_UW)); 1178506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1179506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_GE, X, dst_x0); 1180506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_GE, Y, dst_y0); 1181506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_L, X, dst_x1); 1182506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_L, Y, dst_y1); 1183506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1184506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_predicate_control(&func, BRW_PREDICATE_NONE); 1185506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_push_insn_state(&func); 1186506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_mask_control(&func, BRW_MASK_DISABLE); 1187506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, g1, f0, g1); 1188506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_pop_insn_state(&func); 1189506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1190506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1191506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 1192506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to translate from destination (X, Y) coordinates to source (X, Y) 1193506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates. 1194506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1195506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1196506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::translate_dst_to_src() 1197506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1198506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_MUL(&func, Xp, X, x_transform.multiplier); 1199506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_MUL(&func, Yp, Y, y_transform.multiplier); 1200506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, Xp, Xp, x_transform.offset); 1201506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, Yp, Yp, y_transform.offset); 1202506d70be21cd3469118de89297cba0c0f709c1aePaul Berry SWAP_XY_AND_XPYP(); 1203506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1204506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1205506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 120619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to transform the X and Y coordinates as needed for blending 120719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * together the different samples in an MSAA texture. 120819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 120919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 121019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berrybrw_blorp_blit_program::single_to_blend() 121119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 121219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* When looking up samples in an MSAA texture using the SAMPLE message, 121319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Gen6 requires the texture coordinates to be odd integers (so that they 121419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * correspond to the center of a 2x2 block representing the four samples 121519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * that maxe up a pixel). So we need to multiply our X and Y coordinates 121619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * each by 2 and then add 1. 121719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 121819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHL(&func, t1, X, brw_imm_w(1)); 121919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHL(&func, t2, Y, brw_imm_w(1)); 122019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_ADD(&func, Xp, t1, brw_imm_w(1)); 122119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_ADD(&func, Yp, t2, brw_imm_w(1)); 122219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry SWAP_XY_AND_XPYP(); 122319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 122419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 1225b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1226b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry/** 1227b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * Count the number of trailing 1 bits in the given value. For example: 1228b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1229b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * count_trailing_one_bits(0) == 0 1230b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * count_trailing_one_bits(7) == 3 1231b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * count_trailing_one_bits(11) == 2 1232b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry */ 1233b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berryinline int count_trailing_one_bits(unsigned value) 1234b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry{ 1235b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */ 1236b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry return __builtin_ctz(~value); 1237b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry#else 1238b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry return _mesa_bitcount(value & ~(value + 1)); 1239b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry#endif 1240b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry} 1241b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1242b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 12434725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berryvoid 124417eae9762cdd6cfa69a060001e26113dfc0d7c86Paul Berrybrw_blorp_blit_program::manual_blend(unsigned num_samples) 12454725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry{ 12464ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry if (key->tex_layout == INTEL_MSAA_LAYOUT_CMS) 12474ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry mcs_fetch(); 12484ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry 1249b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* We add together samples using a binary tree structure, e.g. for 4x MSAA: 1250b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1251b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * result = ((sample[0] + sample[1]) + (sample[2] + sample[3])) / 4 1252b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1253b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * This ensures that when all samples have the same value, no numerical 1254b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * precision is lost, since each addition operation always adds two equal 1255b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * values, and summing two equal floating point values does not lose 1256b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * precision. 1257b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1258b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * We perform this computation by treating the texture_data array as a 1259b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * stack and performing the following operations: 1260b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1261b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 0 onto stack 1262b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 1 onto stack 1263b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - add top two stack entries 1264b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 2 onto stack 1265b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 3 onto stack 1266b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - add top two stack entries 1267b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - add top two stack entries 1268b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - divide top stack entry by 4 1269b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1270b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * Note that after pushing sample i onto the stack, the number of add 1271b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * operations we do is equal to the number of trailing 1 bits in i. This 1272b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * works provided the total number of samples is a power of two, which it 1273b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * always is for i965. 1274e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * 1275e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * For integer formats, we replace the add operations with average 1276e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * operations and skip the final division. 1277b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry */ 1278e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry typedef struct brw_instruction *(*brw_op2_ptr)(struct brw_compile *, 1279e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg, 1280e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg, 1281e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg); 1282e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry brw_op2_ptr combine_op = 1283e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry key->texture_data_type == BRW_REGISTER_TYPE_F ? brw_ADD : brw_AVG; 1284b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry unsigned stack_depth = 0; 128517eae9762cdd6cfa69a060001e26113dfc0d7c86Paul Berry for (unsigned i = 0; i < num_samples; ++i) { 1286b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth == _mesa_bitcount(i)); /* Loop invariant */ 1287b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1288b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Push sample i onto the stack */ 1289b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth < ARRAY_SIZE(texture_data)); 1290b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry if (i == 0) { 1291b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry s_is_zero = true; 1292b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } else { 1293b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry s_is_zero = false; 1294b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry brw_MOV(&func, S, brw_imm_uw(i)); 1295b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } 1296b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry texel_fetch(texture_data[stack_depth++]); 1297b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1298f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry if (i == 0 && key->tex_layout == INTEL_MSAA_LAYOUT_CMS) { 1299f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry /* The Ivy Bridge PRM, Vol4 Part1 p27 (Multisample Control Surface) 1300f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * suggests an optimization: 1301f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * 1302f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * "A simple optimization with probable large return in 1303f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * performance is to compare the MCS value to zero (indicating 1304f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * all samples are on sample slice 0), and sample only from 1305f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * sample slice 0 using ld2dss if MCS is zero." 1306f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * 1307f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * Note that in the case where the MCS value is zero, sampling from 1308f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * sample slice 0 using ld2dss and sampling from sample 0 using 1309f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * ld2dms are equivalent (since all samples are on sample slice 0). 1310f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * Since we have already sampled from sample 0, all we need to do is 1311f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * skip the remaining fetches and averaging if MCS is zero. 1312f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry */ 1313f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry brw_CMP(&func, vec16(brw_null_reg()), BRW_CONDITIONAL_NZ, 1314f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry mcs_data, brw_imm_ud(0)); 1315f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry brw_IF(&func, BRW_EXECUTE_16); 1316f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry } 1317f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry 1318b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Do count_trailing_one_bits(i) times */ 1319b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry for (int j = count_trailing_one_bits(i); j-- > 0; ) { 1320b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth >= 2); 1321b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry --stack_depth; 1322b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1323b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* TODO: should use a smaller loop bound for non_RGBA formats */ 1324b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry for (int k = 0; k < 4; ++k) { 1325e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry combine_op(&func, offset(texture_data[stack_depth - 1], 2*k), 1326e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry offset(vec8(texture_data[stack_depth - 1]), 2*k), 1327e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry offset(vec8(texture_data[stack_depth]), 2*k)); 1328b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } 13294725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 13304725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 13314725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry 1332b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* We should have just 1 sample on the stack now. */ 1333b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth == 1); 1334b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1335e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry if (key->texture_data_type == BRW_REGISTER_TYPE_F) { 1336e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* Scale the result down by a factor of num_samples */ 1337e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* TODO: should use a smaller loop bound for non-RGBA formats */ 1338e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry for (int j = 0; j < 4; ++j) { 1339e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry brw_MUL(&func, offset(texture_data[0], 2*j), 1340e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry offset(vec8(texture_data[0]), 2*j), 1341e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry brw_imm_f(1.0/num_samples)); 1342e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } 13434725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 1344f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry 1345f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry if (key->tex_layout == INTEL_MSAA_LAYOUT_CMS) 1346f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry brw_ENDIF(&func); 13474725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry} 13484725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry 134919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 135019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to look up a value in the texture using the SAMPLE message (which 135119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * does blending of MSAA surfaces). 135219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 135319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 13544725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berrybrw_blorp_blit_program::sample(struct brw_reg dst) 135519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 1356665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry static const sampler_message_arg args[2] = { 1357665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_FLOAT, 1358665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_V_FLOAT 1359665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry }; 1360665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 13614725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry texture_lookup(dst, GEN5_SAMPLER_MESSAGE_SAMPLE, args, ARRAY_SIZE(args)); 136219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 136319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 136419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 1365506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to look up a value in the texture using the SAMPLE_LD message 1366506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (which does a simple texel fetch). 1367506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1368506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 13694725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berrybrw_blorp_blit_program::texel_fetch(struct brw_reg dst) 1370506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 13711c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry static const sampler_message_arg gen6_args[5] = { 1372665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 1373233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_V_INT, 1374233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, /* R */ 1375233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, /* LOD */ 1376233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_SI_INT 1377665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry }; 13781c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry static const sampler_message_arg gen7_ld_args[3] = { 13791c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 13801c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, /* LOD */ 13811c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_V_INT 13821c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry }; 13831c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry static const sampler_message_arg gen7_ld2dss_args[3] = { 13841c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_SI_INT, 13851c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 13861c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_V_INT 13871c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry }; 13884ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry static const sampler_message_arg gen7_ld2dms_args[4] = { 13894ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_SI_INT, 13904ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_MCS_INT, 13914ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 13924ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_V_INT 13934ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry }; 1394665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 13951c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry switch (brw->intel.gen) { 13961c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry case 6: 13974725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry texture_lookup(dst, GEN5_SAMPLER_MESSAGE_SAMPLE_LD, gen6_args, 13981c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry s_is_zero ? 2 : 5); 13991c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry break; 14001c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry case 7: 140160c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry switch (key->tex_layout) { 140260c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_IMS: 140360c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry /* From the Ivy Bridge PRM, Vol4 Part1 p72 (Multisampled Surface Storage 140460c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * Format): 140560c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * 140660c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * If this field is MSFMT_DEPTH_STENCIL 140760c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * [a.k.a. INTEL_MSAA_LAYOUT_IMS], the only sampling engine 140860c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * messages allowed are "ld2dms", "resinfo", and "sampleinfo". 140960c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * 141060c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * So fall through to emit the same message as we use for 141160c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * INTEL_MSAA_LAYOUT_CMS. 141260c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry */ 141360c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_CMS: 141460c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry texture_lookup(dst, GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DMS, 141560c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry gen7_ld2dms_args, ARRAY_SIZE(gen7_ld2dms_args)); 141660c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 141760c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_UMS: 141860c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry texture_lookup(dst, GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DSS, 141960c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry gen7_ld2dss_args, ARRAY_SIZE(gen7_ld2dss_args)); 142060c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 142160c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_NONE: 14221c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry assert(s_is_zero); 14234725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry texture_lookup(dst, GEN5_SAMPLER_MESSAGE_SAMPLE_LD, gen7_ld_args, 14241c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry ARRAY_SIZE(gen7_ld_args)); 142560c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 14261c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry } 14271c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry break; 14281c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry default: 14291c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry assert(!"Should not get here."); 14301c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry break; 14311c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry }; 1432506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1433506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1434506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 14354ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berrybrw_blorp_blit_program::mcs_fetch() 14364ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry{ 14374ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry static const sampler_message_arg gen7_ld_mcs_args[2] = { 14384ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 14394ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_V_INT 14404ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry }; 14414ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry texture_lookup(vec16(mcs_data), GEN7_SAMPLER_MESSAGE_SAMPLE_LD_MCS, 14424ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry gen7_ld_mcs_args, ARRAY_SIZE(gen7_ld_mcs_args)); 14434ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry} 14444ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry 14454ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berryvoid 1446665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berrybrw_blorp_blit_program::expand_to_32_bits(struct brw_reg src, 1447665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry struct brw_reg dst) 1448506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1449665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry brw_MOV(&func, vec8(dst), vec8(src)); 1450506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_compression_control(&func, BRW_COMPRESSION_2NDHALF); 1451665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry brw_MOV(&func, offset(vec8(dst), 1), suboffset(vec8(src), 8)); 1452506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_compression_control(&func, BRW_COMPRESSION_NONE); 1453665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry} 1454665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 1455665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berryvoid 14564725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berrybrw_blorp_blit_program::texture_lookup(struct brw_reg dst, 14574725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry GLuint msg_type, 1458665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry const sampler_message_arg *args, 1459665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry int num_args) 1460665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry{ 1461665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry struct brw_reg mrf = 1462665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry retype(vec16(brw_message_reg(base_mrf)), BRW_REGISTER_TYPE_UD); 1463665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry for (int arg = 0; arg < num_args; ++arg) { 1464665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry switch (args[arg]) { 1465665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_U_FLOAT: 1466665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(X, retype(mrf, BRW_REGISTER_TYPE_F)); 1467665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1468665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_V_FLOAT: 1469665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(Y, retype(mrf, BRW_REGISTER_TYPE_F)); 1470665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1471665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_U_INT: 1472665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(X, mrf); 1473665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1474665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_V_INT: 1475665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(Y, mrf); 1476665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1477233c207e9e477b6b0a5c6705e727129b92989073Paul Berry case SAMPLER_MESSAGE_ARG_SI_INT: 1478233c207e9e477b6b0a5c6705e727129b92989073Paul Berry /* Note: on Gen7, this code may be reached with s_is_zero==true 1479233c207e9e477b6b0a5c6705e727129b92989073Paul Berry * because in Gen7's ld2dss message, the sample index is the first 1480233c207e9e477b6b0a5c6705e727129b92989073Paul Berry * argument. When this happens, we need to move a 0 into the 1481233c207e9e477b6b0a5c6705e727129b92989073Paul Berry * appropriate message register. 1482233c207e9e477b6b0a5c6705e727129b92989073Paul Berry */ 1483233c207e9e477b6b0a5c6705e727129b92989073Paul Berry if (s_is_zero) 1484233c207e9e477b6b0a5c6705e727129b92989073Paul Berry brw_MOV(&func, mrf, brw_imm_ud(0)); 1485233c207e9e477b6b0a5c6705e727129b92989073Paul Berry else 1486233c207e9e477b6b0a5c6705e727129b92989073Paul Berry expand_to_32_bits(S, mrf); 1487233c207e9e477b6b0a5c6705e727129b92989073Paul Berry break; 14884ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry case SAMPLER_MESSAGE_ARG_MCS_INT: 148960c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry switch (key->tex_layout) { 149060c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_CMS: 149160c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry brw_MOV(&func, mrf, mcs_data); 149260c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 149360c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_IMS: 149460c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry /* When sampling from an IMS surface, MCS data is not relevant, 149560c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * and the hardware ignores it. So don't bother populating it. 149660c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry */ 149760c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 149860c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry default: 149960c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry /* We shouldn't be trying to send MCS data with any other 150060c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * layouts. 150160c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry */ 150260c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry assert (!"Unsupported layout for MCS data"); 150360c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 150460c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry } 15054ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry break; 1506233c207e9e477b6b0a5c6705e727129b92989073Paul Berry case SAMPLER_MESSAGE_ARG_ZERO_INT: 1507233c207e9e477b6b0a5c6705e727129b92989073Paul Berry brw_MOV(&func, mrf, brw_imm_ud(0)); 1508233c207e9e477b6b0a5c6705e727129b92989073Paul Berry break; 1509665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry } 1510665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry mrf.nr += 2; 1511665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry } 1512506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1513506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SAMPLE(&func, 15144725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry retype(dst, BRW_REGISTER_TYPE_UW) /* dest */, 1515506d70be21cd3469118de89297cba0c0f709c1aePaul Berry base_mrf /* msg_reg_nr */, 1516665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry brw_message_reg(base_mrf) /* src0 */, 1517506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_BLORP_TEXTURE_BINDING_TABLE_INDEX, 1518665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 0 /* sampler */, 1519506d70be21cd3469118de89297cba0c0f709c1aePaul Berry WRITEMASK_XYZW, 1520506d70be21cd3469118de89297cba0c0f709c1aePaul Berry msg_type, 1521506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 8 /* response_length. TODO: should be smaller for non-RGBA formats? */, 1522665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry mrf.nr - base_mrf /* msg_length */, 1523506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 0 /* header_present */, 1524506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_SAMPLER_SIMD_MODE_SIMD16, 1525506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_SAMPLER_RETURN_FORMAT_FLOAT32); 1526506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1527506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1528506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef X 1529506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef Y 1530506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef U 1531506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef V 1532506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef S 1533506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef SWAP_XY_AND_XPYP 1534506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1535506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1536506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::render_target_write() 1537506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1538e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg mrf_rt_write = 1539e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry retype(vec16(brw_message_reg(base_mrf)), key->texture_data_type); 1540506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int mrf_offset = 0; 1541506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1542506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* If we may have killed pixels, then we need to send R0 and R1 in a header 1543506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * so that the render target knows which pixels we killed. 1544506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1545506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool use_header = key->use_kill; 1546506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (use_header) { 1547506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Copy R0/1 to MRF */ 1548506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_MOV(&func, retype(mrf_rt_write, BRW_REGISTER_TYPE_UD), 1549506d70be21cd3469118de89297cba0c0f709c1aePaul Berry retype(R0, BRW_REGISTER_TYPE_UD)); 1550506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_offset += 2; 1551506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1552506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1553506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Copy texture data to MRFs */ 1554506d70be21cd3469118de89297cba0c0f709c1aePaul Berry for (int i = 0; i < 4; ++i) { 1555506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* E.g. mov(16) m2.0<1>:f r2.0<8;8,1>:f { Align1, H1 } */ 15564725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry brw_MOV(&func, offset(mrf_rt_write, mrf_offset), 1557b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry offset(vec8(texture_data[0]), 2*i)); 1558506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_offset += 2; 1559506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1560506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1561506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Now write to the render target and terminate the thread */ 1562506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_fb_WRITE(&func, 1563506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 16 /* dispatch_width */, 1564506d70be21cd3469118de89297cba0c0f709c1aePaul Berry base_mrf /* msg_reg_nr */, 1565506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_rt_write /* src0 */, 156629362875f2613ad87abe7725ce3c56c36d16cf9bEric Anholt BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD16_SINGLE_SOURCE, 1567506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_BLORP_RENDERBUFFER_BINDING_TABLE_INDEX, 1568506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_offset /* msg_length. TODO: Should be smaller for non-RGBA formats. */, 1569506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 0 /* response_length */, 1570506d70be21cd3469118de89297cba0c0f709c1aePaul Berry true /* eot */, 1571506d70be21cd3469118de89297cba0c0f709c1aePaul Berry use_header); 1572506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1573506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1574506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1575506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1576506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_coord_transform_params::setup(GLuint src0, GLuint dst0, GLuint dst1, 1577506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool mirror) 1578506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1579506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (!mirror) { 1580506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* When not mirroring a coordinate (say, X), we need: 1581506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' - src_x0 = x - dst_x0 1582506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Therefore: 1583506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' = 1*x + (src_x0 - dst_x0) 1584506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1585506d70be21cd3469118de89297cba0c0f709c1aePaul Berry multiplier = 1; 1586506d70be21cd3469118de89297cba0c0f709c1aePaul Berry offset = src0 - dst0; 1587506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } else { 1588506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* When mirroring X we need: 1589506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' - src_x0 = dst_x1 - x - 1 1590506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Therefore: 1591506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' = -1*x + (src_x0 + dst_x1 - 1) 1592506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1593506d70be21cd3469118de89297cba0c0f709c1aePaul Berry multiplier = -1; 1594506d70be21cd3469118de89297cba0c0f709c1aePaul Berry offset = src0 + dst1 - 1; 1595506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1596506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1597506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1598506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 15991bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry/** 16001bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * Determine which MSAA layout the GPU pipeline should be configured for, 16011bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * based on the chip generation, the number of samples, and the true layout of 16021bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * the image in memory. 16031bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 16041bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berryinline intel_msaa_layout 16051bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berrycompute_msaa_layout_for_pipeline(struct brw_context *brw, unsigned num_samples, 16061bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry intel_msaa_layout true_layout) 16071bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry{ 160897fc89c6cbaa3b5ef7f678d2dc2c7d5bbba05315Paul Berry if (num_samples <= 1) { 16091bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* When configuring the GPU for non-MSAA, we can still accommodate IMS 16101bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * format buffers, by transforming coordinates appropriately. 16111bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 16121bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(true_layout == INTEL_MSAA_LAYOUT_NONE || 16131bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry true_layout == INTEL_MSAA_LAYOUT_IMS); 16141bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry return INTEL_MSAA_LAYOUT_NONE; 16150dd5e98aa5c146ef21ab44b34fb7714206d5ec08Paul Berry } else { 16160dd5e98aa5c146ef21ab44b34fb7714206d5ec08Paul Berry assert(true_layout != INTEL_MSAA_LAYOUT_NONE); 16171bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry } 16181bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 16191bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* Prior to Gen7, all MSAA surfaces use IMS layout. */ 16201bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (brw->intel.gen == 6) { 16211bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(true_layout == INTEL_MSAA_LAYOUT_IMS); 16221bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry } 16231bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 16241bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry return true_layout; 16251bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry} 16261bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 16271bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 16288b1f467cce34340637e9baca4847fc5273cf7541Paul Berrybrw_blorp_blit_params::brw_blorp_blit_params(struct brw_context *brw, 16298b1f467cce34340637e9baca4847fc5273cf7541Paul Berry struct intel_mipmap_tree *src_mt, 1630e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry unsigned src_level, unsigned src_layer, 1631506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct intel_mipmap_tree *dst_mt, 1632e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry unsigned dst_level, unsigned dst_layer, 1633506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint src_x0, GLuint src_y0, 1634506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint dst_x0, GLuint dst_y0, 1635506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint dst_x1, GLuint dst_y1, 1636506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool mirror_x, bool mirror_y) 1637506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1638e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry src.set(brw, src_mt, src_level, src_layer); 1639e87174cf4b499c8e9558438e70b0da5f0f38f54aPaul Berry dst.set(brw, dst_mt, dst_level, dst_layer); 1640506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1641506d70be21cd3469118de89297cba0c0f709c1aePaul Berry use_wm_prog = true; 1642506d70be21cd3469118de89297cba0c0f709c1aePaul Berry memset(&wm_prog_key, 0, sizeof(wm_prog_key)); 1643506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1644e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* texture_data_type indicates the register type that should be used to 1645e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * manipulate texture data. 1646e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry */ 1647e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry switch (_mesa_get_format_datatype(src_mt->format)) { 1648e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_UNSIGNED_NORMALIZED: 1649e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_SIGNED_NORMALIZED: 1650e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_FLOAT: 1651e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_F; 1652e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1653e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_UNSIGNED_INT: 1654e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry if (src_mt->format == MESA_FORMAT_S8) { 1655e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* We process stencil as though it's an unsigned normalized color */ 1656e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_F; 1657e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } else { 1658e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_UD; 1659e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } 1660e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1661e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_INT: 1662e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_D; 1663e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1664e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry default: 1665e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry assert(!"Unrecognized blorp format"); 1666e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1667e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } 1668e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry 16698b1f467cce34340637e9baca4847fc5273cf7541Paul Berry if (brw->intel.gen > 6) { 167060c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry /* Gen7's rendering hardware only supports the IMS layout for depth and 167160c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * stencil render targets. Blorp always maps its destination surface as 167260c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * a color render target (even if it's actually a depth or stencil 167360c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * buffer). So if the destination is IMS, we'll have to map it as a 167460c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * single-sampled texture and interleave the samples ourselves. 16758b1f467cce34340637e9baca4847fc5273cf7541Paul Berry */ 16761bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (dst_mt->msaa_layout == INTEL_MSAA_LAYOUT_IMS) 16778b1f467cce34340637e9baca4847fc5273cf7541Paul Berry dst.num_samples = 0; 16788b1f467cce34340637e9baca4847fc5273cf7541Paul Berry } 16798b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 168097fc89c6cbaa3b5ef7f678d2dc2c7d5bbba05315Paul Berry if (dst.map_stencil_as_y_tiled && dst.num_samples > 1) { 168134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* If the destination surface is a W-tiled multisampled stencil buffer 168234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * that we're mapping as Y tiled, then we need to arrange for the WM 168334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * program to run once per sample rather than once per pixel, because 168434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * the memory layout of related samples doesn't match between W and Y 168534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * tiling. 1686233c207e9e477b6b0a5c6705e727129b92989073Paul Berry */ 168734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry wm_prog_key.persample_msaa_dispatch = true; 1688233c207e9e477b6b0a5c6705e727129b92989073Paul Berry } 1689233c207e9e477b6b0a5c6705e727129b92989073Paul Berry 169097fc89c6cbaa3b5ef7f678d2dc2c7d5bbba05315Paul Berry if (src.num_samples > 0 && dst.num_samples > 1) { 169119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We are blitting from a multisample buffer to a multisample buffer, so 169219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * we must preserve samples within a pixel. This means we have to 169334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * arrange for the WM program to run once per sample rather than once 169434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * per pixel. 169519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 169634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry wm_prog_key.persample_msaa_dispatch = true; 169719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 169819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 169919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* The render path must be configured to use the same number of samples as 170019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the destination buffer. 170119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 170219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry num_samples = dst.num_samples; 170319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 170419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry GLenum base_format = _mesa_get_format_base_format(src_mt->format); 170519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (base_format != GL_DEPTH_COMPONENT && /* TODO: what about depth/stencil? */ 170619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry base_format != GL_STENCIL_INDEX && 170797fc89c6cbaa3b5ef7f678d2dc2c7d5bbba05315Paul Berry src_mt->num_samples > 1 && dst_mt->num_samples <= 1) { 170819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We are downsampling a color buffer, so blend. */ 170919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.blend = true; 171019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 171119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 171219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* src_samples and dst_samples are the true sample counts */ 171319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.src_samples = src_mt->num_samples; 171419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.dst_samples = dst_mt->num_samples; 171519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 171619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* tex_samples and rt_samples are the sample counts that are set up in 171719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * SURFACE_STATE. 171819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 171919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.tex_samples = src.num_samples; 172019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.rt_samples = dst.num_samples; 172119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 17221bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* tex_layout and rt_layout indicate the MSAA layout the GPU pipeline will 17231bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * use to access the source and destination surfaces. 172467b0f7c7dddeb92ee4d24ed3977e20b70f5674f6Paul Berry */ 17251bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.tex_layout = 17261bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry compute_msaa_layout_for_pipeline(brw, src.num_samples, src.msaa_layout); 17271bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.rt_layout = 17281bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry compute_msaa_layout_for_pipeline(brw, dst.num_samples, dst.msaa_layout); 172967b0f7c7dddeb92ee4d24ed3977e20b70f5674f6Paul Berry 17301bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* src_layout and dst_layout indicate the true MSAA layout used by src and 17311bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * dst. 17328b1f467cce34340637e9baca4847fc5273cf7541Paul Berry */ 17331bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.src_layout = src_mt->msaa_layout; 17341bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.dst_layout = dst_mt->msaa_layout; 17358b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 1736506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_prog_key.src_tiled_w = src.map_stencil_as_y_tiled; 1737506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_prog_key.dst_tiled_w = dst.map_stencil_as_y_tiled; 1738506d70be21cd3469118de89297cba0c0f709c1aePaul Berry x0 = wm_push_consts.dst_x0 = dst_x0; 1739506d70be21cd3469118de89297cba0c0f709c1aePaul Berry y0 = wm_push_consts.dst_y0 = dst_y0; 1740506d70be21cd3469118de89297cba0c0f709c1aePaul Berry x1 = wm_push_consts.dst_x1 = dst_x1; 1741506d70be21cd3469118de89297cba0c0f709c1aePaul Berry y1 = wm_push_consts.dst_y1 = dst_y1; 1742506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_push_consts.x_transform.setup(src_x0, dst_x0, dst_x1, mirror_x); 1743506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_push_consts.y_transform.setup(src_y0, dst_y0, dst_y1, mirror_y); 1744506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 174597fc89c6cbaa3b5ef7f678d2dc2c7d5bbba05315Paul Berry if (dst.num_samples <= 1 && dst_mt->num_samples > 1) { 174619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We must expand the rectangle we send through the rendering pipeline, 174719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * to account for the fact that we are mapping the destination region as 174819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * single-sampled when it is in fact multisampled. We must also align 174919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * it to a multiple of the multisampling pattern, because the 175019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * differences between multisampled and single-sampled surface formats 175119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * will mean that pixels are scrambled within the multisampling pattern. 175219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * TODO: what if this makes the coordinates too large? 17538b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * 17541bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * Note: this only works if the destination surface uses the IMS layout. 17551bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * If it's UMS, then we have no choice but to set up the rendering 17561bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * pipeline as multisampled. 175719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 17581bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(dst_mt->msaa_layout == INTEL_MSAA_LAYOUT_IMS); 1759082874e3891e588f674508be6578f600b35852c4Paul Berry switch (dst_mt->num_samples) { 1760082874e3891e588f674508be6578f600b35852c4Paul Berry case 4: 17614df2848786d4778a2ce7dbf2e046e191036ccb56Paul Berry x0 = ROUND_DOWN_TO(x0 * 2, 4); 17624df2848786d4778a2ce7dbf2e046e191036ccb56Paul Berry y0 = ROUND_DOWN_TO(y0 * 2, 4); 1763082874e3891e588f674508be6578f600b35852c4Paul Berry x1 = ALIGN(x1 * 2, 4); 1764082874e3891e588f674508be6578f600b35852c4Paul Berry y1 = ALIGN(y1 * 2, 4); 1765082874e3891e588f674508be6578f600b35852c4Paul Berry break; 1766082874e3891e588f674508be6578f600b35852c4Paul Berry case 8: 17674df2848786d4778a2ce7dbf2e046e191036ccb56Paul Berry x0 = ROUND_DOWN_TO(x0 * 4, 8); 17684df2848786d4778a2ce7dbf2e046e191036ccb56Paul Berry y0 = ROUND_DOWN_TO(y0 * 2, 4); 1769082874e3891e588f674508be6578f600b35852c4Paul Berry x1 = ALIGN(x1 * 4, 8); 1770082874e3891e588f674508be6578f600b35852c4Paul Berry y1 = ALIGN(y1 * 2, 4); 1771082874e3891e588f674508be6578f600b35852c4Paul Berry break; 1772082874e3891e588f674508be6578f600b35852c4Paul Berry default: 1773082874e3891e588f674508be6578f600b35852c4Paul Berry assert(!"Unrecognized sample count in brw_blorp_blit_params ctor"); 1774082874e3891e588f674508be6578f600b35852c4Paul Berry break; 1775082874e3891e588f674508be6578f600b35852c4Paul Berry } 177619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.use_kill = true; 177719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 177819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 1779506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (dst.map_stencil_as_y_tiled) { 1780602e9a0f3727b036caf3a7b228fe90d36d832ea7Paul Berry /* We must modify the rectangle we send through the rendering pipeline 178176c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * (and the size and x/y offset of the destination surface), to account 178276c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * for the fact that we are mapping it as Y-tiled when it is in fact 178376c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * W-tiled. 178421e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * 178521e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * Both Y tiling and W tiling can be understood as organizations of 178621e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * 32-byte sub-tiles; within each 32-byte sub-tile, the layout of pixels 178721e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * is different, but the layout of the 32-byte sub-tiles within the 4k 178821e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * tile is the same (8 sub-tiles across by 16 sub-tiles down, in 178921e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * column-major order). In Y tiling, the sub-tiles are 16 bytes wide 179021e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * and 2 rows high; in W tiling, they are 8 bytes wide and 4 rows high. 179121e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * 179221e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * Therefore, to account for the layout differences within the 32-byte 179321e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * sub-tiles, we must expand the rectangle so the X coordinates of its 179421e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * edges are multiples of 8 (the W sub-tile width), and its Y 179521e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * coordinates of its edges are multiples of 4 (the W sub-tile height). 179621e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * Then we need to scale the X and Y coordinates of the rectangle to 179721e9850d5369f9757b5005df4c8af38668a3053bPaul Berry * account for the differences in aspect ratio between the Y and W 179876c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * sub-tiles. We need to modify the layer width and height similarly. 179976c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * 180036bc0fe4f2e90ea9efa19940f477472dad6fb18fPaul Berry * A correction needs to be applied when MSAA is in use: since 180136bc0fe4f2e90ea9efa19940f477472dad6fb18fPaul Berry * INTEL_MSAA_LAYOUT_IMS uses an interleaving pattern whose height is 4, 180236bc0fe4f2e90ea9efa19940f477472dad6fb18fPaul Berry * we need to align the Y coordinates to multiples of 8, so that when 180336bc0fe4f2e90ea9efa19940f477472dad6fb18fPaul Berry * they are divided by two they are still multiples of 4. 180436bc0fe4f2e90ea9efa19940f477472dad6fb18fPaul Berry * 180576c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * Note: Since the x/y offset of the surface will be applied using the 180676c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * SURFACE_STATE command packet, it will be invisible to the swizzling 180776c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * code in the shader; therefore it needs to be in a multiple of the 180876c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * 32-byte sub-tile size. Fortunately it is, since the sub-tile is 8 180976c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * pixels wide and 4 pixels high (when viewed as a W-tiled stencil 181076c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * buffer), and the miplevel alignment used for stencil buffers is 8 181176c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * pixels horizontally and either 4 or 8 pixels vertically (see 181276c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * intel_horizontal_texture_alignment_unit() and 181376c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * intel_vertical_texture_alignment_unit()). 181476c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * 181576c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * Note: Also, since the SURFACE_STATE command packet can only apply 181676c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * offsets that are multiples of 4 pixels horizontally and 2 pixels 181776c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * vertically, it is important that the offsets will be multiples of 181876c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * these sizes after they are converted into Y-tiled coordinates. 181976c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * Fortunately they will be, since we know from above that the offsets 182076c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * are a multiple of the 32-byte sub-tile size, and in Y-tiled 182176c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * coordinates the sub-tile is 16 pixels wide and 2 pixels high. 182234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * 1823602e9a0f3727b036caf3a7b228fe90d36d832ea7Paul Berry * TODO: what if this makes the coordinates (or the texture size) too 1824602e9a0f3727b036caf3a7b228fe90d36d832ea7Paul Berry * large? 1825506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 182636bc0fe4f2e90ea9efa19940f477472dad6fb18fPaul Berry const unsigned x_align = 8, y_align = dst.num_samples != 0 ? 8 : 4; 18274df2848786d4778a2ce7dbf2e046e191036ccb56Paul Berry x0 = ROUND_DOWN_TO(x0, x_align) * 2; 18284df2848786d4778a2ce7dbf2e046e191036ccb56Paul Berry y0 = ROUND_DOWN_TO(y0, y_align) / 2; 182934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry x1 = ALIGN(x1, x_align) * 2; 183034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry y1 = ALIGN(y1, y_align) / 2; 183176c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry dst.width = ALIGN(dst.width, x_align) * 2; 183276c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry dst.height = ALIGN(dst.height, y_align) / 2; 183376c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry dst.x_offset *= 2; 183476c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry dst.y_offset /= 2; 1835506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_prog_key.use_kill = true; 1836506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1837602e9a0f3727b036caf3a7b228fe90d36d832ea7Paul Berry 1838602e9a0f3727b036caf3a7b228fe90d36d832ea7Paul Berry if (src.map_stencil_as_y_tiled) { 183976c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry /* We must modify the size and x/y offset of the source surface to 184076c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * account for the fact that we are mapping it as Y-tiled when it is in 184176c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * fact W tiled. 184276c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * 184376c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * See the comments above concerning x/y offset alignment for the 184476c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry * destination surface. 1845602e9a0f3727b036caf3a7b228fe90d36d832ea7Paul Berry * 1846602e9a0f3727b036caf3a7b228fe90d36d832ea7Paul Berry * TODO: what if this makes the texture size too large? 1847602e9a0f3727b036caf3a7b228fe90d36d832ea7Paul Berry */ 184836bc0fe4f2e90ea9efa19940f477472dad6fb18fPaul Berry const unsigned x_align = 8, y_align = src.num_samples != 0 ? 8 : 4; 184976c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry src.width = ALIGN(src.width, x_align) * 2; 185076c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry src.height = ALIGN(src.height, y_align) / 2; 185176c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry src.x_offset *= 2; 185276c1c34c4aa2fa48126aee8d16e943bf0e3ff750Paul Berry src.y_offset /= 2; 1853602e9a0f3727b036caf3a7b228fe90d36d832ea7Paul Berry } 1854506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1855506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1856506d70be21cd3469118de89297cba0c0f709c1aePaul Berryuint32_t 1857506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_params::get_wm_prog(struct brw_context *brw, 1858506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_prog_data **prog_data) const 1859506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1860506d70be21cd3469118de89297cba0c0f709c1aePaul Berry uint32_t prog_offset; 1861506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (!brw_search_cache(&brw->cache, BRW_BLORP_BLIT_PROG, 1862506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &this->wm_prog_key, sizeof(this->wm_prog_key), 1863506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &prog_offset, prog_data)) { 1864506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_blit_program prog(brw, &this->wm_prog_key); 1865506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint program_size; 1866506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const GLuint *program = prog.compile(brw, &program_size); 1867506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_upload_cache(&brw->cache, BRW_BLORP_BLIT_PROG, 1868506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &this->wm_prog_key, sizeof(this->wm_prog_key), 1869506d70be21cd3469118de89297cba0c0f709c1aePaul Berry program, program_size, 1870506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &prog.prog_data, sizeof(prog.prog_data), 1871506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &prog_offset, prog_data); 1872506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1873506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return prog_offset; 1874506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1875