brw_blorp_blit.cpp revision c738ea1191cd1b5a0dc60b0e6d05fd918083e961
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 * 115fa1d267beb4adb542ea90b805306599f602c38d2Paul Berryfind_miptree(GLbitfield buffer_bit, struct gl_renderbuffer *rb) 116fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry{ 117fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry struct intel_renderbuffer *irb = intel_renderbuffer(rb); 118fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry struct intel_mipmap_tree *mt = irb->mt; 119fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry if (buffer_bit == GL_STENCIL_BUFFER_BIT && mt->stencil_mt) 120fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry mt = mt->stencil_mt; 121fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry return mt; 122fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry} 123fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 124fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 125fa1d267beb4adb542ea90b805306599f602c38d2Paul Berrystatic void 126fa1d267beb4adb542ea90b805306599f602c38d2Paul Berrydo_blorp_blit(struct intel_context *intel, GLbitfield buffer_bit, 127fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry struct gl_renderbuffer *src_rb, struct gl_renderbuffer *dst_rb, 128fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry GLint srcX0, GLint srcY0, 129fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, 130fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry bool mirror_x, bool mirror_y) 131fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry{ 132fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry struct gl_context *ctx = &intel->ctx; 133fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 134fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Find source/dst miptrees */ 135fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry struct intel_mipmap_tree *src_mt = find_miptree(buffer_bit, src_rb); 136fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry struct intel_mipmap_tree *dst_mt = find_miptree(buffer_bit, dst_rb); 137fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 138fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Get ready to blit. This includes depth resolving the src and dst 139fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry * buffers if necessary. 140fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry */ 141fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry intel_renderbuffer_resolve_depth(intel, intel_renderbuffer(src_rb)); 142fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry intel_renderbuffer_resolve_depth(intel, intel_renderbuffer(dst_rb)); 143fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 144fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Do the blit */ 145fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry brw_blorp_blit_params params(brw_context(ctx), src_mt, dst_mt, 146fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry srcX0, srcY0, dstX0, dstY0, dstX1, dstY1, 147fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry mirror_x, mirror_y); 148fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry brw_blorp_exec(intel, ¶ms); 149fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 150fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Mark the dst buffer as needing a HiZ resolve if necessary. */ 151fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry intel_renderbuffer_set_needs_hiz_resolve(intel_renderbuffer(dst_rb)); 152fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry} 153fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 154fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 155fa1d267beb4adb542ea90b805306599f602c38d2Paul Berrystatic bool 156fa1d267beb4adb542ea90b805306599f602c38d2Paul Berryformats_match(GLbitfield buffer_bit, struct gl_renderbuffer *src_rb, 157fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry struct gl_renderbuffer *dst_rb) 158fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry{ 159fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Note: don't just check gl_renderbuffer::Format, because in some cases 160fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry * multiple gl_formats resolve to the same native type in the miptree (for 161fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry * example MESA_FORMAT_X8_Z24 and MESA_FORMAT_S8_Z24), and we can blit 162fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry * between those formats. 163fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry */ 164fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry return find_miptree(buffer_bit, src_rb)->format == 165fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry find_miptree(buffer_bit, dst_rb)->format; 166fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry} 167fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 168fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry 169506d70be21cd3469118de89297cba0c0f709c1aePaul Berrystatic bool 170506d70be21cd3469118de89297cba0c0f709c1aePaul Berrytry_blorp_blit(struct intel_context *intel, 171506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, 172506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, 173506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLenum filter, GLbitfield buffer_bit) 174506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 175506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct gl_context *ctx = &intel->ctx; 176506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 177506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Sync up the state of window system buffers. We need to do this before 178506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * we go looking for the buffers. 179506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 180506d70be21cd3469118de89297cba0c0f709c1aePaul Berry intel_prepare_render(intel); 181506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 182506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const struct gl_framebuffer *read_fb = ctx->ReadBuffer; 183506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const struct gl_framebuffer *draw_fb = ctx->DrawBuffer; 184506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 185506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Detect if the blit needs to be mirrored */ 186506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool mirror_x = false, mirror_y = false; 187506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_x, srcX0, srcX1); 188506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_x, dstX0, dstX1); 189506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_y, srcY0, srcY1); 190506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_y, dstY0, dstY1); 191506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 192506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Make sure width and height match */ 193da54d2e576426122009be083ecbfb9eefd8a3799Paul Berry if (srcX1 - srcX0 != dstX1 - dstX0) return false; 194da54d2e576426122009be083ecbfb9eefd8a3799Paul Berry if (srcY1 - srcY0 != dstY1 - dstY0) return false; 195506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 19647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* If the destination rectangle needs to be clipped or scissored, do so. 197506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 19847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (!(clip_or_scissor(mirror_x, srcX0, srcX1, dstX0, dstX1, 19947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry draw_fb->_Xmin, draw_fb->_Xmax) && 20047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry clip_or_scissor(mirror_y, srcY0, srcY1, dstY0, dstY1, 20147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry draw_fb->_Ymin, draw_fb->_Ymax))) { 20247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* Everything got clipped/scissored away, so the blit was successful. */ 20347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry return true; 20447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 20547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 20675f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry /* If the source rectangle needs to be clipped or scissored, do so. */ 20775f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry if (!(clip_or_scissor(mirror_x, dstX0, dstX1, srcX0, srcX1, 20875f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry 0, read_fb->Width) && 20975f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry clip_or_scissor(mirror_y, dstY0, dstY1, srcY0, srcY1, 21075f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry 0, read_fb->Height))) { 21175f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry /* Everything got clipped/scissored away, so the blit was successful. */ 21275f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry return true; 21375f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry } 214506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 2150dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry /* Account for the fact that in the system framebuffer, the origin is at 2160dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry * the lower left. 2170dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry */ 218c738ea1191cd1b5a0dc60b0e6d05fd918083e961Paul Berry if (_mesa_is_winsys_fbo(read_fb)) { 2190dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry GLint tmp = read_fb->Height - srcY0; 2200dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry srcY0 = read_fb->Height - srcY1; 2210dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry srcY1 = tmp; 2220dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry mirror_y = !mirror_y; 2230dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry } 224c738ea1191cd1b5a0dc60b0e6d05fd918083e961Paul Berry if (_mesa_is_winsys_fbo(draw_fb)) { 2250dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry GLint tmp = draw_fb->Height - dstY0; 2260dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry dstY0 = draw_fb->Height - dstY1; 2270dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry dstY1 = tmp; 2280dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry mirror_y = !mirror_y; 2290dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry } 2300dbec6ae07e7b3d566cc397ab09caa413e412846Paul Berry 231fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry /* Find buffers */ 232fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry struct gl_renderbuffer *src_rb; 233fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry struct gl_renderbuffer *dst_rb; 234fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry switch (buffer_bit) { 235fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry case GL_COLOR_BUFFER_BIT: 236fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry src_rb = read_fb->_ColorReadBuffer; 237ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry for (unsigned i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; ++i) { 238ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry dst_rb = ctx->DrawBuffer->_ColorDrawBuffers[i]; 239ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry if (dst_rb && !formats_match(buffer_bit, src_rb, dst_rb)) 240ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry return false; 241ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry } 242ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry for (unsigned i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; ++i) { 243ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry dst_rb = ctx->DrawBuffer->_ColorDrawBuffers[i]; 244ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry do_blorp_blit(intel, buffer_bit, src_rb, dst_rb, srcX0, srcY0, 245ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry dstX0, dstY0, dstX1, dstY1, mirror_x, mirror_y); 246ff9313fac70fa85d051dd4d2b9d3402d39f67ceaPaul Berry } 247fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry break; 248fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry case GL_DEPTH_BUFFER_BIT: 249fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry src_rb = read_fb->Attachment[BUFFER_DEPTH].Renderbuffer; 250fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry dst_rb = draw_fb->Attachment[BUFFER_DEPTH].Renderbuffer; 251fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry if (!formats_match(buffer_bit, src_rb, dst_rb)) 252fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry return false; 253fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry do_blorp_blit(intel, buffer_bit, src_rb, dst_rb, srcX0, srcY0, 254fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry dstX0, dstY0, dstX1, dstY1, mirror_x, mirror_y); 255fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry break; 256fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry case GL_STENCIL_BUFFER_BIT: 257fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry src_rb = read_fb->Attachment[BUFFER_STENCIL].Renderbuffer; 258fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry dst_rb = draw_fb->Attachment[BUFFER_STENCIL].Renderbuffer; 259fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry if (!formats_match(buffer_bit, src_rb, dst_rb)) 260fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry return false; 261fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry do_blorp_blit(intel, buffer_bit, src_rb, dst_rb, srcX0, srcY0, 262fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry dstX0, dstY0, dstX1, dstY1, mirror_x, mirror_y); 263fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry break; 264fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry default: 265fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry assert(false); 266fa1d267beb4adb542ea90b805306599f602c38d2Paul Berry } 267506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 268506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return true; 269506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 270506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 271506d70be21cd3469118de89297cba0c0f709c1aePaul BerryGLbitfield 272506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_framebuffer(struct intel_context *intel, 273506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, 274506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, 275506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLbitfield mask, GLenum filter) 276506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 277b08545199ac8a01392a805f158d22cc03060a6fbPaul Berry /* BLORP is not supported before Gen6. */ 278b08545199ac8a01392a805f158d22cc03060a6fbPaul Berry if (intel->gen < 6) 279506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return mask; 280506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 281506d70be21cd3469118de89297cba0c0f709c1aePaul Berry static GLbitfield buffer_bits[] = { 282506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GL_COLOR_BUFFER_BIT, 283506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GL_DEPTH_BUFFER_BIT, 284506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GL_STENCIL_BUFFER_BIT, 285506d70be21cd3469118de89297cba0c0f709c1aePaul Berry }; 286506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 287506d70be21cd3469118de89297cba0c0f709c1aePaul Berry for (unsigned int i = 0; i < ARRAY_SIZE(buffer_bits); ++i) { 288506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if ((mask & buffer_bits[i]) && 289506d70be21cd3469118de89297cba0c0f709c1aePaul Berry try_blorp_blit(intel, 290506d70be21cd3469118de89297cba0c0f709c1aePaul Berry srcX0, srcY0, srcX1, srcY1, 291506d70be21cd3469118de89297cba0c0f709c1aePaul Berry dstX0, dstY0, dstX1, dstY1, 292506d70be21cd3469118de89297cba0c0f709c1aePaul Berry filter, buffer_bits[i])) { 293506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mask &= ~buffer_bits[i]; 294506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 295506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 296506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 297506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return mask; 298506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 299506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 300665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 301665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry/** 302665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry * Enum to specify the order of arguments in a sampler message 303665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry */ 304665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berryenum sampler_message_arg 305665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry{ 306665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_FLOAT, 307665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_V_FLOAT, 308665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 309665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_V_INT, 310233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_SI_INT, 3114ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_MCS_INT, 312233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, 313665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry}; 314665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 315506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 316506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Generator for WM programs used in BLORP blits. 317506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 318506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * The bulk of the work done by the WM program is to wrap and unwrap the 319506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinate transformations used by the hardware to store surfaces in 32019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * memory. The hardware transforms a pixel location (X, Y, S) (where S is the 32119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * sample index for a multisampled surface) to a memory offset by the 32219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * following formulas: 323506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3248b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * offset = tile(tiling_format, encode_msaa(num_samples, layout, X, Y, S)) 3258b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * (X, Y, S) = decode_msaa(num_samples, layout, detile(tiling_format, offset)) 32619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 3271bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * For a single-sampled surface, or for a multisampled surface using 3281bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * INTEL_MSAA_LAYOUT_UMS, encode_msaa() and decode_msaa are the identity 3291bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * function: 33019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 3311bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * encode_msaa(1, NONE, X, Y, 0) = (X, Y, 0) 3321bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * decode_msaa(1, NONE, X, Y, 0) = (X, Y, 0) 3331bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * encode_msaa(n, UMS, X, Y, S) = (X, Y, S) 3341bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * decode_msaa(n, UMS, X, Y, S) = (X, Y, S) 33519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 3361bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * For a 4x multisampled surface using INTEL_MSAA_LAYOUT_IMS, encode_msaa() 3371bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * embeds the sample number into bit 1 of the X and Y coordinates: 33819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 3391bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * encode_msaa(4, IMS, X, Y, S) = (X', Y', 0) 34019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * where X' = (X & ~0b1) << 1 | (S & 0b1) << 1 | (X & 0b1) 34119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Y' = (Y & ~0b1 ) << 1 | (S & 0b10) | (Y & 0b1) 3421bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * decode_msaa(4, IMS, X, Y, 0) = (X', Y', S) 34319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * where X' = (X & ~0b11) >> 1 | (X & 0b1) 34419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Y' = (Y & ~0b11) >> 1 | (Y & 0b1) 34519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * S = (Y & 0b10) | (X & 0b10) >> 1 346506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3477fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * For an 8x multisampled surface using INTEL_MSAA_LAYOUT_IMS, encode_msaa() 3487fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * embeds the sample number into bits 1 and 2 of the X coordinate and bit 1 of 3497fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * the Y coordinate: 3507fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * 3517fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * encode_msaa(8, IMS, X, Y, S) = (X', Y', 0) 3527fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b1) << 2 | (S & 0b100) | (S & 0b1) << 1 | (X & 0b1) 3537fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b1) << 1 | (S & 0b10) | (Y & 0b1) 3547fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * decode_msaa(8, IMS, X, Y, 0) = (X', Y', S) 3557fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b111) >> 2 | (X & 0b1) 3567fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b11) >> 1 | (Y & 0b1) 3577fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * S = (X & 0b100) | (Y & 0b10) | (X & 0b10) >> 1 3587fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * 359506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * For X tiling, tile() combines together the low-order bits of the X and Y 360506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates in the pattern 0byyyxxxxxxxxx, creating 4k tiles that are 512 361506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * bytes wide and 8 rows high: 362506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3638b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(x_tiled, X, Y, S) = A 364506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = tile_num << 12 | offset 3658b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile_num = (Y' >> 3) * tile_pitch + (X' >> 9) 3668b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * offset = (Y' & 0b111) << 9 367506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X & 0b111111111) 368506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp 3698b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 3708b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(x_tiled, A) = (X, Y, S) 371506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp 3728b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch 3738b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y' / qpitch 3748b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = (tile_num / tile_pitch) << 3 3758b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b111000000000) >> 9 376506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (tile_num % tile_pitch) << 9 377506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b111111111) 378506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 379506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (In all tiling formulas, cpp is the number of bytes occupied by a single 3808b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * sample ("chars per pixel"), tile_pitch is the number of 4k tiles required 3818b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * to fill the width of the surface, and qpitch is the spacing (in rows) 3828b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * between array slices). 383506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 384506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * For Y tiling, tile() combines together the low-order bits of the X and Y 385506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates in the pattern 0bxxxyyyyyxxxx, creating 4k tiles that are 128 386506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * bytes wide and 32 rows high: 387506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3888b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(y_tiled, X, Y, S) = A 389506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = tile_num << 12 | offset 3908b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile_num = (Y' >> 5) * tile_pitch + (X' >> 7) 391506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * offset = (X' & 0b1110000) << 5 392506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (Y' & 0b11111) << 4 393506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b1111) 394506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp 3958b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 3968b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(y_tiled, A) = (X, Y, S) 397506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp 3988b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch 3998b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y' / qpitch 4008b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = (tile_num / tile_pitch) << 5 4018b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b111110000) >> 4 402506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (tile_num % tile_pitch) << 7 403506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b111000000000) >> 5 404506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b1111) 405506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 406506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * For W tiling, tile() combines together the low-order bits of the X and Y 407506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates in the pattern 0bxxxyyyyxyxyx, creating 4k tiles that are 64 408506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * bytes wide and 64 rows high (note that W tiling is only used for stencil 4098b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * buffers, which always have cpp = 1 and S=0): 410506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 4118b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(w_tiled, X, Y, S) = A 412506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = tile_num << 12 | offset 4138b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile_num = (Y' >> 6) * tile_pitch + (X' >> 6) 414506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * offset = (X' & 0b111000) << 6 4158b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (Y' & 0b111100) << 3 416506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b100) << 2 4178b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (Y' & 0b10) << 2 418506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b10) << 1 4198b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (Y' & 0b1) << 1 420506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b1) 421506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp = X 4228b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 4238b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(w_tiled, A) = (X, Y, S) 424506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp = X' 4258b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch = Y' 4268b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y / qpitch = 0 4278b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = (tile_num / tile_pitch) << 6 4288b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b111100000) >> 3 4298b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b1000) >> 2 4308b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b10) >> 1 431506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (tile_num % tile_pitch) << 6 432506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b111000000000) >> 6 433506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b10000) >> 2 434506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b100) >> 1 435506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b1) 436506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 437506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Finally, for a non-tiled surface, tile() simply combines together the X and 438506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y coordinates in the natural way: 439506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 4408b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(untiled, X, Y, S) = A 441506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = Y * pitch + X' 442506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp 4438b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 4448b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(untiled, A) = (X, Y, S) 445506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp 4468b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch 4478b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y' / qpitch 448506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = A % pitch 4498b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = A / pitch 450506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 451506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (In these formulas, pitch is the number of bytes occupied by a single row 45219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * of samples). 453506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 454506d70be21cd3469118de89297cba0c0f709c1aePaul Berryclass brw_blorp_blit_program 455506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 456506d70be21cd3469118de89297cba0c0f709c1aePaul Berrypublic: 457506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_blit_program(struct brw_context *brw, 458506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const brw_blorp_blit_prog_key *key); 459506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ~brw_blorp_blit_program(); 460506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 461506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const GLuint *compile(struct brw_context *brw, GLuint *program_size); 462506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 463506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_prog_data prog_data; 464506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 465506d70be21cd3469118de89297cba0c0f709c1aePaul Berryprivate: 466506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void alloc_regs(); 467506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void alloc_push_const_regs(int base_reg); 468506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void compute_frag_coords(); 469506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void translate_tiling(bool old_tiled_w, bool new_tiled_w); 4701bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry void encode_msaa(unsigned num_samples, intel_msaa_layout layout); 4711bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry void decode_msaa(unsigned num_samples, intel_msaa_layout layout); 472506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void kill_if_outside_dst_rect(); 473506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void translate_dst_to_src(); 47419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry void single_to_blend(); 47517eae9762cdd6cfa69a060001e26113dfc0d7c86Paul Berry void manual_blend(unsigned num_samples); 4764725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry void sample(struct brw_reg dst); 4774725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry void texel_fetch(struct brw_reg dst); 4784ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry void mcs_fetch(); 479665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry void expand_to_32_bits(struct brw_reg src, struct brw_reg dst); 4804725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry void texture_lookup(struct brw_reg dst, GLuint msg_type, 4814725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry const sampler_message_arg *args, int num_args); 482506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void render_target_write(); 483506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 484b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /** 485b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * Base-2 logarithm of the maximum number of samples that can be blended. 486b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry */ 48717eae9762cdd6cfa69a060001e26113dfc0d7c86Paul Berry static const unsigned LOG2_MAX_BLEND_SAMPLES = 3; 488b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 489506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void *mem_ctx; 490506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_context *brw; 491506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const brw_blorp_blit_prog_key *key; 492506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_compile func; 493506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 494506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Thread dispatch header */ 495506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg R0; 496506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 497506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Pixel X/Y coordinates (always in R1). */ 498506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg R1; 499506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 500506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Push constants */ 501506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_x0; 502506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_x1; 503506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_y0; 504506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_y1; 505506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct { 506506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg multiplier; 507506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg offset; 508506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } x_transform, y_transform; 509506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 510b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Data read from texture (4 vec16's per array element) */ 511b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry struct brw_reg texture_data[LOG2_MAX_BLEND_SAMPLES + 1]; 512506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 5134ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry /* Auxiliary storage for the contents of the MCS surface. 5144ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry * 5154ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry * Since the sampler always returns 8 registers worth of data, this is 8 5164ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry * registers wide, even though we only use the first 2 registers of it. 5174ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry */ 5184ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry struct brw_reg mcs_data; 5194ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry 520506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* X coordinates. We have two of them so that we can perform coordinate 521506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * transformations easily. 522506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 523506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg x_coords[2]; 524506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 525506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Y coordinates. We have two of them so that we can perform coordinate 526506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * transformations easily. 527506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 528506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg y_coords[2]; 529506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 530506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Which element of x_coords and y_coords is currently in use. 531506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 532506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int xy_coord_index; 533506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 53419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* True if, at the point in the program currently being compiled, the 53519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * sample index is known to be zero. 53619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 53719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry bool s_is_zero; 53819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 53919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Register storing the sample index when s_is_zero is false. */ 54019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry struct brw_reg sample_index; 54119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 542506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Temporaries */ 543506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg t1; 544506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg t2; 545506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 546665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry /* MRF used for sampling and render target writes */ 547506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint base_mrf; 548506d70be21cd3469118de89297cba0c0f709c1aePaul Berry}; 549506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 550506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::brw_blorp_blit_program( 551506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_context *brw, 552506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const brw_blorp_blit_prog_key *key) 553506d70be21cd3469118de89297cba0c0f709c1aePaul Berry : mem_ctx(ralloc_context(NULL)), 554506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw(brw), 555506d70be21cd3469118de89297cba0c0f709c1aePaul Berry key(key) 556506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 557506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_init_compile(brw, &func, mem_ctx); 558506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 559506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 560506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::~brw_blorp_blit_program() 561506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 562506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ralloc_free(mem_ctx); 563506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 564506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 565506d70be21cd3469118de89297cba0c0f709c1aePaul Berryconst GLuint * 566506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::compile(struct brw_context *brw, 567506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint *program_size) 568506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 56919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Sanity checks */ 57034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (key->dst_tiled_w && key->rt_samples > 0) { 57134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* If the destination image is W tiled and multisampled, then the thread 57234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * must be dispatched once per sample, not once per pixel. This is 57334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * necessary because after conversion between W and Y tiling, there's no 57419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * guarantee that all samples corresponding to a single pixel will still 57519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * be together. 57619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 57734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry assert(key->persample_msaa_dispatch); 57819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 57919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 58019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (key->blend) { 5814725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry /* We are blending, which means we won't have an opportunity to 5824725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry * translate the tiling and sample count for the texture surface. So 58319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the surface state for the texture must be configured with the correct 58419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * tiling and sample count. 58519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 58619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry assert(!key->src_tiled_w); 58719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry assert(key->tex_samples == key->src_samples); 5881bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(key->tex_layout == key->src_layout); 58919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry assert(key->tex_samples > 0); 59019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 59119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 59234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (key->persample_msaa_dispatch) { 59334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* It only makes sense to do persample dispatch if the render target is 59434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * configured as multisampled. 59534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry */ 59634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry assert(key->rt_samples > 0); 59734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } 59834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry 5991bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* Make sure layout is consistent with sample count */ 6001bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->tex_layout == INTEL_MSAA_LAYOUT_NONE) == 6011bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->tex_samples == 0)); 6021bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->rt_layout == INTEL_MSAA_LAYOUT_NONE) == 6031bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->rt_samples == 0)); 6041bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->src_layout == INTEL_MSAA_LAYOUT_NONE) == 6051bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->src_samples == 0)); 6061bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->dst_layout == INTEL_MSAA_LAYOUT_NONE) == 6071bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->dst_samples == 0)); 6088b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 60934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* Set up prog_data */ 61034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry memset(&prog_data, 0, sizeof(prog_data)); 61134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry prog_data.persample_msaa_dispatch = key->persample_msaa_dispatch; 61234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry 613506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_compression_control(&func, BRW_COMPRESSION_NONE); 614506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 615506d70be21cd3469118de89297cba0c0f709c1aePaul Berry alloc_regs(); 616506d70be21cd3469118de89297cba0c0f709c1aePaul Berry compute_frag_coords(); 617506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 618506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Render target and texture hardware don't support W tiling. */ 619506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const bool rt_tiled_w = false; 620506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const bool tex_tiled_w = false; 621506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 622506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* The address that data will be written to is determined by the 62319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * coordinates supplied to the WM thread and the tiling and sample count of 62419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the render target, according to the formula: 625506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 62619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (X, Y, S) = decode_msaa(rt_samples, detile(rt_tiling, offset)) 627506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 62819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * If the actual tiling and sample count of the destination surface are not 62919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the same as the configuration of the render target, then these 63019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * coordinates are wrong and we have to adjust them to compensate for the 63119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * difference. 632506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 63319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (rt_tiled_w != key->dst_tiled_w || 6348b1f467cce34340637e9baca4847fc5273cf7541Paul Berry key->rt_samples != key->dst_samples || 6351bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry key->rt_layout != key->dst_layout) { 6361bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry encode_msaa(key->rt_samples, key->rt_layout); 6378b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(rt_tiling, offset) */ 638506d70be21cd3469118de89297cba0c0f709c1aePaul Berry translate_tiling(rt_tiled_w, key->dst_tiled_w); 6398b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(dst_tiling, offset) */ 6401bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry decode_msaa(key->dst_samples, key->dst_layout); 64119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 642506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 64319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Now (X, Y, S) = decode_msaa(dst_samples, detile(dst_tiling, offset)). 644506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 64519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * That is: X, Y and S now contain the true coordinates and sample index of 64619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the data that the WM thread should output. 647506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 648506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If we need to kill pixels that are outside the destination rectangle, 649506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * now is the time to do it. 650506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 651506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 652506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (key->use_kill) 653506d70be21cd3469118de89297cba0c0f709c1aePaul Berry kill_if_outside_dst_rect(); 654506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 655506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Next, apply a translation to obtain coordinates in the source image. */ 656506d70be21cd3469118de89297cba0c0f709c1aePaul Berry translate_dst_to_src(); 657506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 65819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* If the source image is not multisampled, then we want to fetch sample 65919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * number 0, because that's the only sample there is. 660506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 66119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (key->src_samples == 0) 66219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry s_is_zero = true; 663506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 66419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* X, Y, and S are now the coordinates of the pixel in the source image 66519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * that we want to texture from. Exception: if we are blending, then S is 66619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * irrelevant, because we are going to fetch all samples. 667506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 66819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (key->blend) { 6694725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry if (brw->intel.gen == 6) { 6704725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry /* Gen6 hardware an automatically blend using the SAMPLE message */ 6714725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry single_to_blend(); 672b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry sample(texture_data[0]); 6734725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } else { 6744725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry /* Gen7+ hardware doesn't automaticaly blend. */ 67517eae9762cdd6cfa69a060001e26113dfc0d7c86Paul Berry manual_blend(key->src_samples); 6764725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 67719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } else { 67819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We aren't blending, which means we just want to fetch a single sample 67919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * from the source surface. The address that we want to fetch from is 68019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * related to the X, Y and S values according to the formula: 68119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 68219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (X, Y, S) = decode_msaa(src_samples, detile(src_tiling, offset)). 68319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 68419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * If the actual tiling and sample count of the source surface are not 68519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the same as the configuration of the texture, then we need to adjust 68619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the coordinates to compensate for the difference. 68719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 68819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (tex_tiled_w != key->src_tiled_w || 6898b1f467cce34340637e9baca4847fc5273cf7541Paul Berry key->tex_samples != key->src_samples || 6901bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry key->tex_layout != key->src_layout) { 6911bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry encode_msaa(key->src_samples, key->src_layout); 6928b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(src_tiling, offset) */ 69319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry translate_tiling(key->src_tiled_w, tex_tiled_w); 6948b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(tex_tiling, offset) */ 6951bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry decode_msaa(key->tex_samples, key->tex_layout); 69619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 697506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 69819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Now (X, Y, S) = decode_msaa(tex_samples, detile(tex_tiling, offset)). 69919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 70019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * In other words: X, Y, and S now contain values which, when passed to 70119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the texturing unit, will cause data to be read from the correct 70219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * memory location. So we can fetch the texel now. 70319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 7044ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry if (key->tex_layout == INTEL_MSAA_LAYOUT_CMS) 7054ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry mcs_fetch(); 706b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry texel_fetch(texture_data[0]); 70719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 70819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 70919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Finally, write the fetched (or blended) value to the render target and 71019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * terminate the thread. 711506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 712506d70be21cd3469118de89297cba0c0f709c1aePaul Berry render_target_write(); 713506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return brw_get_program(&func, program_size); 714506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 715506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 716506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 717506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::alloc_push_const_regs(int base_reg) 718506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 719506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define CONST_LOC(name) offsetof(brw_blorp_wm_push_constants, name) 720506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define ALLOC_REG(name) \ 721506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->name = \ 722506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_uw1_reg(BRW_GENERAL_REGISTER_FILE, base_reg, CONST_LOC(name) / 2) 723506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 724506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_x0); 725506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_x1); 726506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_y0); 727506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_y1); 728506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(x_transform.multiplier); 729506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(x_transform.offset); 730506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(y_transform.multiplier); 731506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(y_transform.offset); 732506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef CONST_LOC 733506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef ALLOC_REG 734506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 735506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 736506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 737506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::alloc_regs() 738506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 739506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int reg = 0; 740506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->R0 = retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW); 741506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->R1 = retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW); 742506d70be21cd3469118de89297cba0c0f709c1aePaul Berry prog_data.first_curbe_grf = reg; 743506d70be21cd3469118de89297cba0c0f709c1aePaul Berry alloc_push_const_regs(reg); 744506d70be21cd3469118de89297cba0c0f709c1aePaul Berry reg += BRW_BLORP_NUM_PUSH_CONST_REGS; 745b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry for (unsigned i = 0; i < ARRAY_SIZE(texture_data); ++i) { 746e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry this->texture_data[i] = 747e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry retype(vec16(brw_vec8_grf(reg, 0)), key->texture_data_type); 748e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry reg += 8; 749b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } 7504ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry this->mcs_data = 7514ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry retype(brw_vec8_grf(reg, 0), BRW_REGISTER_TYPE_UD); reg += 8; 752506d70be21cd3469118de89297cba0c0f709c1aePaul Berry for (int i = 0; i < 2; ++i) { 753506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->x_coords[i] 754506d70be21cd3469118de89297cba0c0f709c1aePaul Berry = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 755506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->y_coords[i] 756506d70be21cd3469118de89297cba0c0f709c1aePaul Berry = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 757506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 758506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->xy_coord_index = 0; 75919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry this->sample_index 76019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 761506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->t1 = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 762506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->t2 = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 763506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 764b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Make sure we didn't run out of registers */ 765b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(reg <= GEN7_MRF_HACK_START); 766b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 767506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int mrf = 2; 768506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->base_mrf = mrf; 769506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 770506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 771506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/* In the code that follows, X and Y can be used to quickly refer to the 772506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * active elements of x_coords and y_coords, and Xp and Yp ("X prime" and "Y 773506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * prime") to the inactive elements. 77419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 77519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * S can be used to quickly refer to sample_index. 776506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 777506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define X x_coords[xy_coord_index] 778506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define Y y_coords[xy_coord_index] 779506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define Xp x_coords[!xy_coord_index] 780506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define Yp y_coords[!xy_coord_index] 78119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry#define S sample_index 782506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 783506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/* Quickly swap the roles of (X, Y) and (Xp, Yp). Saves us from having to do 784506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * MOVs to transfor (Xp, Yp) to (X, Y) after a coordinate transformation. 785506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 786506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define SWAP_XY_AND_XPYP() xy_coord_index = !xy_coord_index; 787506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 788506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 789506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to compute the X and Y coordinates of the pixels being rendered 790506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * by this WM invocation. 791506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 792506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Assuming the render target is set up for Y tiling, these (X, Y) values are 793506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * related to the address offset where outputs will be written by the formula: 794506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 795506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (X, Y, S) = decode_msaa(detile(offset)). 796506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 797506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (See brw_blorp_blit_program). 798506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 799506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 800506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::compute_frag_coords() 801506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 802506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* R1.2[15:0] = X coordinate of upper left pixel of subspan 0 (pixel 0) 803506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.3[15:0] = X coordinate of upper left pixel of subspan 1 (pixel 4) 804506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.4[15:0] = X coordinate of upper left pixel of subspan 2 (pixel 8) 805506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.5[15:0] = X coordinate of upper left pixel of subspan 3 (pixel 12) 806506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 807506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Pixels within a subspan are laid out in this arrangement: 808506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 0 1 809506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 2 3 810506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 811506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * So, to compute the coordinates of each pixel, we need to read every 2nd 812506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 16-bit value (vstride=2) from R1, starting at the 4th 16-bit value 813506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (suboffset=4), and duplicate each value 4 times (hstride=0, width=4). 814506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * In other words, the data we want to access is R1.4<2;4,0>UW. 815506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 816506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Then, we need to add the repeating sequence (0, 1, 0, 1, ...) to the 817506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * result, since pixels n+1 and n+3 are in the right half of the subspan. 818506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 819506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, X, stride(suboffset(R1, 4), 2, 4, 0), brw_imm_v(0x10101010)); 820506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 821506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Similarly, Y coordinates for subspans come from R1.2[31:16] through 822506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.5[31:16], so to get pixel Y coordinates we need to start at the 5th 823506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 16-bit value instead of the 4th (R1.5<2;4,0>UW instead of 824506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.4<2;4,0>UW). 825506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 826506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * And we need to add the repeating sequence (0, 0, 1, 1, ...), since 827506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * pixels n+2 and n+3 are in the bottom half of the subspan. 828506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 829506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, Y, stride(suboffset(R1, 5), 2, 4, 0), brw_imm_v(0x11001100)); 83019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 83134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (key->persample_msaa_dispatch) { 832619471dc322de80942f7dbb29a437890e48155c6Paul Berry switch (key->rt_samples) { 833619471dc322de80942f7dbb29a437890e48155c6Paul Berry case 4: 834619471dc322de80942f7dbb29a437890e48155c6Paul Berry /* The WM will be run in MSDISPMODE_PERSAMPLE with num_samples == 4. 835619471dc322de80942f7dbb29a437890e48155c6Paul Berry * Therefore, subspan 0 will represent sample 0, subspan 1 will 836619471dc322de80942f7dbb29a437890e48155c6Paul Berry * represent sample 1, and so on. 837619471dc322de80942f7dbb29a437890e48155c6Paul Berry * 838619471dc322de80942f7dbb29a437890e48155c6Paul Berry * So we need to populate S with the sequence (0, 0, 0, 0, 1, 1, 1, 839619471dc322de80942f7dbb29a437890e48155c6Paul Berry * 1, 2, 2, 2, 2, 3, 3, 3, 3). The easiest way to do this is to 840619471dc322de80942f7dbb29a437890e48155c6Paul Berry * populate a temporary variable with the sequence (0, 1, 2, 3), and 841619471dc322de80942f7dbb29a437890e48155c6Paul Berry * then copy from it using vstride=1, width=4, hstride=0. 842619471dc322de80942f7dbb29a437890e48155c6Paul Berry */ 843619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_MOV(&func, t1, brw_imm_v(0x3210)); 844619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_MOV(&func, S, stride(t1, 1, 4, 0)); 845619471dc322de80942f7dbb29a437890e48155c6Paul Berry break; 846619471dc322de80942f7dbb29a437890e48155c6Paul Berry case 8: { 847619471dc322de80942f7dbb29a437890e48155c6Paul Berry /* The WM will be run in MSDISPMODE_PERSAMPLE with num_samples == 8. 848619471dc322de80942f7dbb29a437890e48155c6Paul Berry * Therefore, subspan 0 will represent sample N (where N is 0 or 4), 849619471dc322de80942f7dbb29a437890e48155c6Paul Berry * subspan 1 will represent sample 1, and so on. We can find the 850619471dc322de80942f7dbb29a437890e48155c6Paul Berry * value of N by looking at R0.0 bits 7:6 ("Starting Sample Pair 851619471dc322de80942f7dbb29a437890e48155c6Paul Berry * Index") and multiplying by two (since samples are always delivered 852619471dc322de80942f7dbb29a437890e48155c6Paul Berry * in pairs). That is, we compute 2*((R0.0 & 0xc0) >> 6) == (R0.0 & 853619471dc322de80942f7dbb29a437890e48155c6Paul Berry * 0xc0) >> 5. 854619471dc322de80942f7dbb29a437890e48155c6Paul Berry * 855619471dc322de80942f7dbb29a437890e48155c6Paul Berry * Then we need to add N to the sequence (0, 0, 0, 0, 1, 1, 1, 1, 2, 856619471dc322de80942f7dbb29a437890e48155c6Paul Berry * 2, 2, 2, 3, 3, 3, 3), which we compute by populating a temporary 857619471dc322de80942f7dbb29a437890e48155c6Paul Berry * variable with the sequence (0, 1, 2, 3), and then reading from it 858619471dc322de80942f7dbb29a437890e48155c6Paul Berry * using vstride=1, width=4, hstride=0. 859619471dc322de80942f7dbb29a437890e48155c6Paul Berry */ 860619471dc322de80942f7dbb29a437890e48155c6Paul Berry struct brw_reg t1_ud1 = vec1(retype(t1, BRW_REGISTER_TYPE_UD)); 861619471dc322de80942f7dbb29a437890e48155c6Paul Berry struct brw_reg r0_ud1 = vec1(retype(R0, BRW_REGISTER_TYPE_UD)); 862619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_AND(&func, t1_ud1, r0_ud1, brw_imm_ud(0xc0)); 863619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_SHR(&func, t1_ud1, t1_ud1, brw_imm_ud(5)); 864619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_MOV(&func, t2, brw_imm_v(0x3210)); 865619471dc322de80942f7dbb29a437890e48155c6Paul Berry brw_ADD(&func, S, retype(t1_ud1, BRW_REGISTER_TYPE_UW), 866619471dc322de80942f7dbb29a437890e48155c6Paul Berry stride(t2, 1, 4, 0)); 867619471dc322de80942f7dbb29a437890e48155c6Paul Berry break; 868619471dc322de80942f7dbb29a437890e48155c6Paul Berry } 869619471dc322de80942f7dbb29a437890e48155c6Paul Berry default: 870619471dc322de80942f7dbb29a437890e48155c6Paul Berry assert(!"Unrecognized sample count in " 871619471dc322de80942f7dbb29a437890e48155c6Paul Berry "brw_blorp_blit_program::compute_frag_coords()"); 872619471dc322de80942f7dbb29a437890e48155c6Paul Berry break; 873619471dc322de80942f7dbb29a437890e48155c6Paul Berry } 87434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry s_is_zero = false; 87534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } else { 87634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* Either the destination surface is single-sampled, or the WM will be 87734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * run in MSDISPMODE_PERPIXEL (which causes a single fragment dispatch 87834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * per pixel). In either case, it's not meaningful to compute a sample 87934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * value. Just set it to 0. 88034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry */ 88134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry s_is_zero = true; 88234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } 883506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 884506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 885506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 886506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to compensate for the difference between Y and W tiling. 887506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 888506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * This code modifies the X and Y coordinates according to the formula: 889506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 8908b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * (X', Y', S') = detile(new_tiling, tile(old_tiling, X, Y, S)) 891506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 892506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (See brw_blorp_blit_program). 893506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 894506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * It can only translate between W and Y tiling, so new_tiling and old_tiling 895506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * are booleans where true represents W tiling and false represents Y tiling. 896506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 897506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 898506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::translate_tiling(bool old_tiled_w, bool new_tiled_w) 899506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 900506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (old_tiled_w == new_tiled_w) 901506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return; 902506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 9038b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* In the code that follows, we can safely assume that S = 0, because W 9041bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * tiling formats always use IMS layout. 9058b1f467cce34340637e9baca4847fc5273cf7541Paul Berry */ 9068b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 9078b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 908506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (new_tiled_w) { 909506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Given X and Y coordinates that describe an address using Y tiling, 910506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * translate to the X and Y coordinates that describe the same address 911506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * using W tiling. 912506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 913506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If we break down the low order bits of X and Y, using a 914506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * single letter to represent each low-order bit: 915506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 916506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X = A << 7 | 0bBCDEFGH 917506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y = J << 5 | 0bKLMNP (1) 918506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 919506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Then we can apply the Y tiling formula to see the memory offset being 920506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * addressed: 921506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 922506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * offset = (J * tile_pitch + A) << 12 | 0bBCDKLMNPEFGH (2) 923506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 924506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If we apply the W detiling formula to this memory location, that the 925506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * corresponding X' and Y' coordinates are: 926506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 927506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = A << 6 | 0bBCDPFH (3) 928506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y' = J << 6 | 0bKLMNEG 929506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 930506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Combining (1) and (3), we see that to transform (X, Y) to (X', Y'), 931506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * we need to make the following computation: 932506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 933506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (X & ~0b1011) >> 1 | (Y & 0b1) << 2 | X & 0b1 (4) 934506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y' = (Y & ~0b1) << 1 | (X & 0b1000) >> 2 | (X & 0b10) >> 1 935506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 936506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfff4)); /* X & ~0b1011 */ 937506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b1011) >> 1 */ 938506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 939506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(2)); /* (Y & 0b1) << 2 */ 940506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b1011) >> 1 | (Y & 0b1) << 2 */ 941506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 942506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Xp, t1, t2); 943506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffe)); /* Y & ~0b1 */ 944506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b1) << 1 */ 945506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(8)); /* X & 0b1000 */ 946506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(2)); /* (X & 0b1000) >> 2 */ 947506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (Y & ~0b1) << 1 | (X & 0b1000) >> 2 */ 948506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(2)); /* X & 0b10 */ 949506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(1)); /* (X & 0b10) >> 1 */ 950506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Yp, t1, t2); 951506d70be21cd3469118de89297cba0c0f709c1aePaul Berry SWAP_XY_AND_XPYP(); 952506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } else { 953506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Applying the same logic as above, but in reverse, we obtain the 954506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * formulas: 955506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 956506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (X & ~0b101) << 1 | (Y & 0b10) << 2 | (Y & 0b1) << 1 | X & 0b1 957506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y' = (Y & ~0b11) >> 1 | (X & 0b100) >> 2 958506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 959506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffa)); /* X & ~0b101 */ 960506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b101) << 1 */ 961506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, Y, brw_imm_uw(2)); /* Y & 0b10 */ 962506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(2)); /* (Y & 0b10) << 2 */ 963506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b101) << 1 | (Y & 0b10) << 2 */ 964506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 965506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(1)); /* (Y & 0b1) << 1 */ 966506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b101) << 1 | (Y & 0b10) << 2 967506d70be21cd3469118de89297cba0c0f709c1aePaul Berry | (Y & 0b1) << 1 */ 968506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 969506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Xp, t1, t2); 970506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffc)); /* Y & ~0b11 */ 971506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b11) >> 1 */ 972506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(4)); /* X & 0b100 */ 973506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(2)); /* (X & 0b100) >> 2 */ 974506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Yp, t1, t2); 975506d70be21cd3469118de89297cba0c0f709c1aePaul Berry SWAP_XY_AND_XPYP(); 976506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 977506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 978506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 979506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 98019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to compensate for the difference between MSAA and non-MSAA 98119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * surfaces. 98219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 98319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * This code modifies the X and Y coordinates according to the formula: 98419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 9857fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * (X', Y', S') = encode_msaa(num_samples, IMS, X, Y, S) 98619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 98719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (See brw_blorp_blit_program). 98819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 98919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 9901bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berrybrw_blorp_blit_program::encode_msaa(unsigned num_samples, 9911bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry intel_msaa_layout layout) 99219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 9931bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry switch (layout) { 9941bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_NONE: 9958b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* No translation necessary, and S should already be zero. */ 9968b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 9971bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 9981bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_CMS: 9991bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* We can't compensate for compressed layout since at this point in the 10001bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * program we haven't read from the MCS buffer. 10011bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 10021bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(!"Bad layout in encode_msaa"); 10031bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 10041bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_UMS: 100519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* No translation necessary. */ 10061bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 10071bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_IMS: 10087fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry switch (num_samples) { 10097fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry case 4: 10107fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry /* encode_msaa(4, IMS, X, Y, S) = (X', Y', 0) 10117fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b1) << 1 | (S & 0b1) << 1 | (X & 0b1) 10127fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b1) << 1 | (S & 0b10) | (Y & 0b1) 10137fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry */ 10147fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffe)); /* X & ~0b1 */ 10157fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry if (!s_is_zero) { 10167fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, S, brw_imm_uw(1)); /* S & 0b1 */ 10177fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b1) | (S & 0b1) */ 10187fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry } 10197fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b1) << 1 10207fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry | (S & 0b1) << 1 */ 10217fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 10227fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Xp, t1, t2); 10237fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffe)); /* Y & ~0b1 */ 10247fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b1) << 1 */ 10257fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry if (!s_is_zero) { 10267fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, S, brw_imm_uw(2)); /* S & 0b10 */ 10277fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (Y & ~0b1) << 1 | (S & 0b10) */ 10287fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry } 10297fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 10307fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Yp, t1, t2); 10317fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry break; 10327fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry case 8: 10337fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry /* encode_msaa(8, IMS, X, Y, S) = (X', Y', 0) 10347fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b1) << 2 | (S & 0b100) | (S & 0b1) << 1 10357fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * | (X & 0b1) 10367fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b1) << 1 | (S & 0b10) | (Y & 0b1) 10377fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry */ 10387fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffe)); /* X & ~0b1 */ 10397fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(2)); /* (X & ~0b1) << 2 */ 10407fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry if (!s_is_zero) { 10417fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, S, brw_imm_uw(4)); /* S & 0b100 */ 10427fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b1) << 2 | (S & 0b100) */ 10437fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, S, brw_imm_uw(1)); /* S & 0b1 */ 10447fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(1)); /* (S & 0b1) << 1 */ 10457fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b1) << 2 | (S & 0b100) 10467fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry | (S & 0b1) << 1 */ 10477fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry } 10487fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 10497fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Xp, t1, t2); 10507fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffe)); /* Y & ~0b1 */ 10517fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b1) << 1 */ 10527fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry if (!s_is_zero) { 10537fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, S, brw_imm_uw(2)); /* S & 0b10 */ 10547fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (Y & ~0b1) << 1 | (S & 0b10) */ 10557fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry } 10567fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 10577fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Yp, t1, t2); 10587fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry break; 105919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 106019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry SWAP_XY_AND_XPYP(); 10618b1f467cce34340637e9baca4847fc5273cf7541Paul Berry s_is_zero = true; 10621bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 106319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 106419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 106519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 106619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 106719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to compensate for the difference between MSAA and non-MSAA 106819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * surfaces. 106919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 107019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * This code modifies the X and Y coordinates according to the formula: 107119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 10727fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * (X', Y', S) = decode_msaa(num_samples, IMS, X, Y, S) 107319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 107419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (See brw_blorp_blit_program). 107519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 107619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 10771bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berrybrw_blorp_blit_program::decode_msaa(unsigned num_samples, 10781bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry intel_msaa_layout layout) 107919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 10801bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry switch (layout) { 10811bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_NONE: 10828b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* No translation necessary, and S should already be zero. */ 10838b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 10841bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 10851bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_CMS: 10861bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* We can't compensate for compressed layout since at this point in the 10871bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * program we don't have access to the MCS buffer. 10881bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 10891bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(!"Bad layout in encode_msaa"); 10901bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 10911bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_UMS: 109219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* No translation necessary. */ 10931bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 10941bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_IMS: 10958b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 10967fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry switch (num_samples) { 10977fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry case 4: 10987fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry /* decode_msaa(4, IMS, X, Y, 0) = (X', Y', S) 10997fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b11) >> 1 | (X & 0b1) 11007fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b11) >> 1 | (Y & 0b1) 11017fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * S = (Y & 0b10) | (X & 0b10) >> 1 11027fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry */ 11037fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffc)); /* X & ~0b11 */ 11047fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b11) >> 1 */ 11057fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 11067fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Xp, t1, t2); 11077fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffc)); /* Y & ~0b11 */ 11087fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b11) >> 1 */ 11097fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 11107fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Yp, t1, t2); 11117fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(2)); /* Y & 0b10 */ 11127fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(2)); /* X & 0b10 */ 11137fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(1)); /* (X & 0b10) >> 1 */ 11147fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, S, t1, t2); 11157fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry break; 11167fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry case 8: 11177fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry /* decode_msaa(8, IMS, X, Y, 0) = (X', Y', S) 11187fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * where X' = (X & ~0b111) >> 2 | (X & 0b1) 11197fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * Y' = (Y & ~0b11) >> 1 | (Y & 0b1) 11207fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry * S = (X & 0b100) | (Y & 0b10) | (X & 0b10) >> 1 11217fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry */ 11227fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfff8)); /* X & ~0b111 */ 11237fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(2)); /* (X & ~0b111) >> 2 */ 11247fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 11257fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Xp, t1, t2); 11267fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffc)); /* Y & ~0b11 */ 11277fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b11) >> 1 */ 11287fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 11297fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, Yp, t1, t2); 11307fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t1, X, brw_imm_uw(4)); /* X & 0b100 */ 11317fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(2)); /* Y & 0b10 */ 11327fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, t1, t1, t2); /* (X & 0b100) | (Y & 0b10) */ 11337fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_AND(&func, t2, X, brw_imm_uw(2)); /* X & 0b10 */ 11347fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(1)); /* (X & 0b10) >> 1 */ 11357fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry brw_OR(&func, S, t1, t2); 11367fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry break; 11377fae97c98bfa13bff0e9da857e86eefdb625584cPaul Berry } 113819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry s_is_zero = false; 113919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry SWAP_XY_AND_XPYP(); 11401bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 114119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 114219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 114319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 114419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 1145506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code that kills pixels whose X and Y coordinates are outside the 1146506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * boundary of the rectangle defined by the push constants (dst_x0, dst_y0, 1147506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * dst_x1, dst_y1). 1148506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1149506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1150506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::kill_if_outside_dst_rect() 1151506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1152506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg f0 = brw_flag_reg(); 1153506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg g1 = retype(brw_vec1_grf(1, 7), BRW_REGISTER_TYPE_UW); 1154506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg null16 = vec16(retype(brw_null_reg(), BRW_REGISTER_TYPE_UW)); 1155506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1156506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_GE, X, dst_x0); 1157506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_GE, Y, dst_y0); 1158506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_L, X, dst_x1); 1159506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_L, Y, dst_y1); 1160506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1161506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_predicate_control(&func, BRW_PREDICATE_NONE); 1162506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_push_insn_state(&func); 1163506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_mask_control(&func, BRW_MASK_DISABLE); 1164506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, g1, f0, g1); 1165506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_pop_insn_state(&func); 1166506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1167506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1168506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 1169506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to translate from destination (X, Y) coordinates to source (X, Y) 1170506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates. 1171506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1172506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1173506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::translate_dst_to_src() 1174506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1175506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_MUL(&func, Xp, X, x_transform.multiplier); 1176506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_MUL(&func, Yp, Y, y_transform.multiplier); 1177506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, Xp, Xp, x_transform.offset); 1178506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, Yp, Yp, y_transform.offset); 1179506d70be21cd3469118de89297cba0c0f709c1aePaul Berry SWAP_XY_AND_XPYP(); 1180506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1181506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1182506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 118319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to transform the X and Y coordinates as needed for blending 118419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * together the different samples in an MSAA texture. 118519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 118619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 118719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berrybrw_blorp_blit_program::single_to_blend() 118819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 118919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* When looking up samples in an MSAA texture using the SAMPLE message, 119019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Gen6 requires the texture coordinates to be odd integers (so that they 119119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * correspond to the center of a 2x2 block representing the four samples 119219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * that maxe up a pixel). So we need to multiply our X and Y coordinates 119319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * each by 2 and then add 1. 119419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 119519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHL(&func, t1, X, brw_imm_w(1)); 119619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHL(&func, t2, Y, brw_imm_w(1)); 119719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_ADD(&func, Xp, t1, brw_imm_w(1)); 119819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_ADD(&func, Yp, t2, brw_imm_w(1)); 119919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry SWAP_XY_AND_XPYP(); 120019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 120119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 1202b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1203b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry/** 1204b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * Count the number of trailing 1 bits in the given value. For example: 1205b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1206b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * count_trailing_one_bits(0) == 0 1207b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * count_trailing_one_bits(7) == 3 1208b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * count_trailing_one_bits(11) == 2 1209b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry */ 1210b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berryinline int count_trailing_one_bits(unsigned value) 1211b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry{ 1212b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */ 1213b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry return __builtin_ctz(~value); 1214b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry#else 1215b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry return _mesa_bitcount(value & ~(value + 1)); 1216b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry#endif 1217b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry} 1218b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1219b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 12204725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berryvoid 122117eae9762cdd6cfa69a060001e26113dfc0d7c86Paul Berrybrw_blorp_blit_program::manual_blend(unsigned num_samples) 12224725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry{ 12234ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry if (key->tex_layout == INTEL_MSAA_LAYOUT_CMS) 12244ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry mcs_fetch(); 12254ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry 1226b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* We add together samples using a binary tree structure, e.g. for 4x MSAA: 1227b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1228b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * result = ((sample[0] + sample[1]) + (sample[2] + sample[3])) / 4 1229b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1230b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * This ensures that when all samples have the same value, no numerical 1231b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * precision is lost, since each addition operation always adds two equal 1232b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * values, and summing two equal floating point values does not lose 1233b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * precision. 1234b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1235b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * We perform this computation by treating the texture_data array as a 1236b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * stack and performing the following operations: 1237b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1238b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 0 onto stack 1239b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 1 onto stack 1240b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - add top two stack entries 1241b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 2 onto stack 1242b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 3 onto stack 1243b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - add top two stack entries 1244b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - add top two stack entries 1245b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - divide top stack entry by 4 1246b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1247b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * Note that after pushing sample i onto the stack, the number of add 1248b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * operations we do is equal to the number of trailing 1 bits in i. This 1249b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * works provided the total number of samples is a power of two, which it 1250b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * always is for i965. 1251e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * 1252e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * For integer formats, we replace the add operations with average 1253e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * operations and skip the final division. 1254b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry */ 1255e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry typedef struct brw_instruction *(*brw_op2_ptr)(struct brw_compile *, 1256e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg, 1257e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg, 1258e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg); 1259e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry brw_op2_ptr combine_op = 1260e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry key->texture_data_type == BRW_REGISTER_TYPE_F ? brw_ADD : brw_AVG; 1261b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry unsigned stack_depth = 0; 126217eae9762cdd6cfa69a060001e26113dfc0d7c86Paul Berry for (unsigned i = 0; i < num_samples; ++i) { 1263b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth == _mesa_bitcount(i)); /* Loop invariant */ 1264b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1265b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Push sample i onto the stack */ 1266b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth < ARRAY_SIZE(texture_data)); 1267b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry if (i == 0) { 1268b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry s_is_zero = true; 1269b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } else { 1270b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry s_is_zero = false; 1271b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry brw_MOV(&func, S, brw_imm_uw(i)); 1272b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } 1273b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry texel_fetch(texture_data[stack_depth++]); 1274b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1275f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry if (i == 0 && key->tex_layout == INTEL_MSAA_LAYOUT_CMS) { 1276f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry /* The Ivy Bridge PRM, Vol4 Part1 p27 (Multisample Control Surface) 1277f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * suggests an optimization: 1278f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * 1279f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * "A simple optimization with probable large return in 1280f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * performance is to compare the MCS value to zero (indicating 1281f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * all samples are on sample slice 0), and sample only from 1282f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * sample slice 0 using ld2dss if MCS is zero." 1283f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * 1284f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * Note that in the case where the MCS value is zero, sampling from 1285f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * sample slice 0 using ld2dss and sampling from sample 0 using 1286f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * ld2dms are equivalent (since all samples are on sample slice 0). 1287f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * Since we have already sampled from sample 0, all we need to do is 1288f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * skip the remaining fetches and averaging if MCS is zero. 1289f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry */ 1290f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry brw_CMP(&func, vec16(brw_null_reg()), BRW_CONDITIONAL_NZ, 1291f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry mcs_data, brw_imm_ud(0)); 1292f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry brw_IF(&func, BRW_EXECUTE_16); 1293f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry } 1294f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry 1295b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Do count_trailing_one_bits(i) times */ 1296b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry for (int j = count_trailing_one_bits(i); j-- > 0; ) { 1297b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth >= 2); 1298b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry --stack_depth; 1299b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1300b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* TODO: should use a smaller loop bound for non_RGBA formats */ 1301b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry for (int k = 0; k < 4; ++k) { 1302e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry combine_op(&func, offset(texture_data[stack_depth - 1], 2*k), 1303e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry offset(vec8(texture_data[stack_depth - 1]), 2*k), 1304e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry offset(vec8(texture_data[stack_depth]), 2*k)); 1305b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } 13064725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 13074725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 13084725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry 1309b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* We should have just 1 sample on the stack now. */ 1310b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth == 1); 1311b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1312e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry if (key->texture_data_type == BRW_REGISTER_TYPE_F) { 1313e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* Scale the result down by a factor of num_samples */ 1314e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* TODO: should use a smaller loop bound for non-RGBA formats */ 1315e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry for (int j = 0; j < 4; ++j) { 1316e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry brw_MUL(&func, offset(texture_data[0], 2*j), 1317e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry offset(vec8(texture_data[0]), 2*j), 1318e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry brw_imm_f(1.0/num_samples)); 1319e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } 13204725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 1321f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry 1322f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry if (key->tex_layout == INTEL_MSAA_LAYOUT_CMS) 1323f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry brw_ENDIF(&func); 13244725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry} 13254725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry 132619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 132719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to look up a value in the texture using the SAMPLE message (which 132819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * does blending of MSAA surfaces). 132919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 133019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 13314725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berrybrw_blorp_blit_program::sample(struct brw_reg dst) 133219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 1333665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry static const sampler_message_arg args[2] = { 1334665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_FLOAT, 1335665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_V_FLOAT 1336665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry }; 1337665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 13384725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry texture_lookup(dst, GEN5_SAMPLER_MESSAGE_SAMPLE, args, ARRAY_SIZE(args)); 133919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 134019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 134119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 1342506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to look up a value in the texture using the SAMPLE_LD message 1343506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (which does a simple texel fetch). 1344506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1345506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 13464725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berrybrw_blorp_blit_program::texel_fetch(struct brw_reg dst) 1347506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 13481c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry static const sampler_message_arg gen6_args[5] = { 1349665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 1350233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_V_INT, 1351233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, /* R */ 1352233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, /* LOD */ 1353233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_SI_INT 1354665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry }; 13551c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry static const sampler_message_arg gen7_ld_args[3] = { 13561c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 13571c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, /* LOD */ 13581c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_V_INT 13591c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry }; 13601c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry static const sampler_message_arg gen7_ld2dss_args[3] = { 13611c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_SI_INT, 13621c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 13631c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_V_INT 13641c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry }; 13654ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry static const sampler_message_arg gen7_ld2dms_args[4] = { 13664ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_SI_INT, 13674ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_MCS_INT, 13684ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 13694ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_V_INT 13704ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry }; 1371665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 13721c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry switch (brw->intel.gen) { 13731c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry case 6: 13744725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry texture_lookup(dst, GEN5_SAMPLER_MESSAGE_SAMPLE_LD, gen6_args, 13751c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry s_is_zero ? 2 : 5); 13761c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry break; 13771c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry case 7: 137860c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry switch (key->tex_layout) { 137960c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_IMS: 138060c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry /* From the Ivy Bridge PRM, Vol4 Part1 p72 (Multisampled Surface Storage 138160c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * Format): 138260c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * 138360c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * If this field is MSFMT_DEPTH_STENCIL 138460c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * [a.k.a. INTEL_MSAA_LAYOUT_IMS], the only sampling engine 138560c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * messages allowed are "ld2dms", "resinfo", and "sampleinfo". 138660c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * 138760c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * So fall through to emit the same message as we use for 138860c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * INTEL_MSAA_LAYOUT_CMS. 138960c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry */ 139060c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_CMS: 139160c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry texture_lookup(dst, GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DMS, 139260c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry gen7_ld2dms_args, ARRAY_SIZE(gen7_ld2dms_args)); 139360c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 139460c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_UMS: 139560c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry texture_lookup(dst, GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DSS, 139660c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry gen7_ld2dss_args, ARRAY_SIZE(gen7_ld2dss_args)); 139760c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 139860c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_NONE: 13991c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry assert(s_is_zero); 14004725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry texture_lookup(dst, GEN5_SAMPLER_MESSAGE_SAMPLE_LD, gen7_ld_args, 14011c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry ARRAY_SIZE(gen7_ld_args)); 140260c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 14031c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry } 14041c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry break; 14051c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry default: 14061c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry assert(!"Should not get here."); 14071c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry break; 14081c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry }; 1409506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1410506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1411506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 14124ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berrybrw_blorp_blit_program::mcs_fetch() 14134ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry{ 14144ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry static const sampler_message_arg gen7_ld_mcs_args[2] = { 14154ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 14164ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_V_INT 14174ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry }; 14184ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry texture_lookup(vec16(mcs_data), GEN7_SAMPLER_MESSAGE_SAMPLE_LD_MCS, 14194ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry gen7_ld_mcs_args, ARRAY_SIZE(gen7_ld_mcs_args)); 14204ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry} 14214ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry 14224ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berryvoid 1423665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berrybrw_blorp_blit_program::expand_to_32_bits(struct brw_reg src, 1424665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry struct brw_reg dst) 1425506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1426665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry brw_MOV(&func, vec8(dst), vec8(src)); 1427506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_compression_control(&func, BRW_COMPRESSION_2NDHALF); 1428665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry brw_MOV(&func, offset(vec8(dst), 1), suboffset(vec8(src), 8)); 1429506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_compression_control(&func, BRW_COMPRESSION_NONE); 1430665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry} 1431665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 1432665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berryvoid 14334725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berrybrw_blorp_blit_program::texture_lookup(struct brw_reg dst, 14344725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry GLuint msg_type, 1435665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry const sampler_message_arg *args, 1436665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry int num_args) 1437665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry{ 1438665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry struct brw_reg mrf = 1439665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry retype(vec16(brw_message_reg(base_mrf)), BRW_REGISTER_TYPE_UD); 1440665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry for (int arg = 0; arg < num_args; ++arg) { 1441665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry switch (args[arg]) { 1442665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_U_FLOAT: 1443665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(X, retype(mrf, BRW_REGISTER_TYPE_F)); 1444665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1445665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_V_FLOAT: 1446665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(Y, retype(mrf, BRW_REGISTER_TYPE_F)); 1447665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1448665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_U_INT: 1449665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(X, mrf); 1450665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1451665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_V_INT: 1452665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(Y, mrf); 1453665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1454233c207e9e477b6b0a5c6705e727129b92989073Paul Berry case SAMPLER_MESSAGE_ARG_SI_INT: 1455233c207e9e477b6b0a5c6705e727129b92989073Paul Berry /* Note: on Gen7, this code may be reached with s_is_zero==true 1456233c207e9e477b6b0a5c6705e727129b92989073Paul Berry * because in Gen7's ld2dss message, the sample index is the first 1457233c207e9e477b6b0a5c6705e727129b92989073Paul Berry * argument. When this happens, we need to move a 0 into the 1458233c207e9e477b6b0a5c6705e727129b92989073Paul Berry * appropriate message register. 1459233c207e9e477b6b0a5c6705e727129b92989073Paul Berry */ 1460233c207e9e477b6b0a5c6705e727129b92989073Paul Berry if (s_is_zero) 1461233c207e9e477b6b0a5c6705e727129b92989073Paul Berry brw_MOV(&func, mrf, brw_imm_ud(0)); 1462233c207e9e477b6b0a5c6705e727129b92989073Paul Berry else 1463233c207e9e477b6b0a5c6705e727129b92989073Paul Berry expand_to_32_bits(S, mrf); 1464233c207e9e477b6b0a5c6705e727129b92989073Paul Berry break; 14654ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry case SAMPLER_MESSAGE_ARG_MCS_INT: 146660c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry switch (key->tex_layout) { 146760c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_CMS: 146860c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry brw_MOV(&func, mrf, mcs_data); 146960c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 147060c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry case INTEL_MSAA_LAYOUT_IMS: 147160c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry /* When sampling from an IMS surface, MCS data is not relevant, 147260c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * and the hardware ignores it. So don't bother populating it. 147360c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry */ 147460c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 147560c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry default: 147660c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry /* We shouldn't be trying to send MCS data with any other 147760c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * layouts. 147860c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry */ 147960c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry assert (!"Unsupported layout for MCS data"); 148060c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry break; 148160c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry } 14824ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry break; 1483233c207e9e477b6b0a5c6705e727129b92989073Paul Berry case SAMPLER_MESSAGE_ARG_ZERO_INT: 1484233c207e9e477b6b0a5c6705e727129b92989073Paul Berry brw_MOV(&func, mrf, brw_imm_ud(0)); 1485233c207e9e477b6b0a5c6705e727129b92989073Paul Berry break; 1486665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry } 1487665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry mrf.nr += 2; 1488665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry } 1489506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1490506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SAMPLE(&func, 14914725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry retype(dst, BRW_REGISTER_TYPE_UW) /* dest */, 1492506d70be21cd3469118de89297cba0c0f709c1aePaul Berry base_mrf /* msg_reg_nr */, 1493665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry brw_message_reg(base_mrf) /* src0 */, 1494506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_BLORP_TEXTURE_BINDING_TABLE_INDEX, 1495665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 0 /* sampler */, 1496506d70be21cd3469118de89297cba0c0f709c1aePaul Berry WRITEMASK_XYZW, 1497506d70be21cd3469118de89297cba0c0f709c1aePaul Berry msg_type, 1498506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 8 /* response_length. TODO: should be smaller for non-RGBA formats? */, 1499665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry mrf.nr - base_mrf /* msg_length */, 1500506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 0 /* header_present */, 1501506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_SAMPLER_SIMD_MODE_SIMD16, 1502506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_SAMPLER_RETURN_FORMAT_FLOAT32); 1503506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1504506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1505506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef X 1506506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef Y 1507506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef U 1508506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef V 1509506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef S 1510506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef SWAP_XY_AND_XPYP 1511506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1512506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1513506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::render_target_write() 1514506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1515e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg mrf_rt_write = 1516e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry retype(vec16(brw_message_reg(base_mrf)), key->texture_data_type); 1517506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int mrf_offset = 0; 1518506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1519506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* If we may have killed pixels, then we need to send R0 and R1 in a header 1520506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * so that the render target knows which pixels we killed. 1521506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1522506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool use_header = key->use_kill; 1523506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (use_header) { 1524506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Copy R0/1 to MRF */ 1525506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_MOV(&func, retype(mrf_rt_write, BRW_REGISTER_TYPE_UD), 1526506d70be21cd3469118de89297cba0c0f709c1aePaul Berry retype(R0, BRW_REGISTER_TYPE_UD)); 1527506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_offset += 2; 1528506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1529506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1530506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Copy texture data to MRFs */ 1531506d70be21cd3469118de89297cba0c0f709c1aePaul Berry for (int i = 0; i < 4; ++i) { 1532506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* E.g. mov(16) m2.0<1>:f r2.0<8;8,1>:f { Align1, H1 } */ 15334725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry brw_MOV(&func, offset(mrf_rt_write, mrf_offset), 1534b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry offset(vec8(texture_data[0]), 2*i)); 1535506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_offset += 2; 1536506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1537506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1538506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Now write to the render target and terminate the thread */ 1539506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_fb_WRITE(&func, 1540506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 16 /* dispatch_width */, 1541506d70be21cd3469118de89297cba0c0f709c1aePaul Berry base_mrf /* msg_reg_nr */, 1542506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_rt_write /* src0 */, 154329362875f2613ad87abe7725ce3c56c36d16cf9bEric Anholt BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD16_SINGLE_SOURCE, 1544506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_BLORP_RENDERBUFFER_BINDING_TABLE_INDEX, 1545506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_offset /* msg_length. TODO: Should be smaller for non-RGBA formats. */, 1546506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 0 /* response_length */, 1547506d70be21cd3469118de89297cba0c0f709c1aePaul Berry true /* eot */, 1548506d70be21cd3469118de89297cba0c0f709c1aePaul Berry use_header); 1549506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1550506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1551506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1552506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1553506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_coord_transform_params::setup(GLuint src0, GLuint dst0, GLuint dst1, 1554506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool mirror) 1555506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1556506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (!mirror) { 1557506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* When not mirroring a coordinate (say, X), we need: 1558506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' - src_x0 = x - dst_x0 1559506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Therefore: 1560506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' = 1*x + (src_x0 - dst_x0) 1561506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1562506d70be21cd3469118de89297cba0c0f709c1aePaul Berry multiplier = 1; 1563506d70be21cd3469118de89297cba0c0f709c1aePaul Berry offset = src0 - dst0; 1564506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } else { 1565506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* When mirroring X we need: 1566506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' - src_x0 = dst_x1 - x - 1 1567506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Therefore: 1568506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' = -1*x + (src_x0 + dst_x1 - 1) 1569506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1570506d70be21cd3469118de89297cba0c0f709c1aePaul Berry multiplier = -1; 1571506d70be21cd3469118de89297cba0c0f709c1aePaul Berry offset = src0 + dst1 - 1; 1572506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1573506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1574506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1575506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 15761bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry/** 15771bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * Determine which MSAA layout the GPU pipeline should be configured for, 15781bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * based on the chip generation, the number of samples, and the true layout of 15791bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * the image in memory. 15801bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 15811bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berryinline intel_msaa_layout 15821bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berrycompute_msaa_layout_for_pipeline(struct brw_context *brw, unsigned num_samples, 15831bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry intel_msaa_layout true_layout) 15841bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry{ 15851bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (num_samples == 0) { 15861bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* When configuring the GPU for non-MSAA, we can still accommodate IMS 15871bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * format buffers, by transforming coordinates appropriately. 15881bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 15891bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(true_layout == INTEL_MSAA_LAYOUT_NONE || 15901bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry true_layout == INTEL_MSAA_LAYOUT_IMS); 15911bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry return INTEL_MSAA_LAYOUT_NONE; 15920dd5e98aa5c146ef21ab44b34fb7714206d5ec08Paul Berry } else { 15930dd5e98aa5c146ef21ab44b34fb7714206d5ec08Paul Berry assert(true_layout != INTEL_MSAA_LAYOUT_NONE); 15941bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry } 15951bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 15961bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* Prior to Gen7, all MSAA surfaces use IMS layout. */ 15971bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (brw->intel.gen == 6) { 15981bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(true_layout == INTEL_MSAA_LAYOUT_IMS); 15991bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry } 16001bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 16011bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry return true_layout; 16021bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry} 16031bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 16041bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 16058b1f467cce34340637e9baca4847fc5273cf7541Paul Berrybrw_blorp_blit_params::brw_blorp_blit_params(struct brw_context *brw, 16068b1f467cce34340637e9baca4847fc5273cf7541Paul Berry struct intel_mipmap_tree *src_mt, 1607506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct intel_mipmap_tree *dst_mt, 1608506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint src_x0, GLuint src_y0, 1609506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint dst_x0, GLuint dst_y0, 1610506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint dst_x1, GLuint dst_y1, 1611506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool mirror_x, bool mirror_y) 1612506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1613530bda2aacf77b1e4661e5e5dd05cf108640e657Paul Berry src.set(brw, src_mt, 0, 0); 1614530bda2aacf77b1e4661e5e5dd05cf108640e657Paul Berry dst.set(brw, dst_mt, 0, 0); 1615506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1616506d70be21cd3469118de89297cba0c0f709c1aePaul Berry use_wm_prog = true; 1617506d70be21cd3469118de89297cba0c0f709c1aePaul Berry memset(&wm_prog_key, 0, sizeof(wm_prog_key)); 1618506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1619e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* texture_data_type indicates the register type that should be used to 1620e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * manipulate texture data. 1621e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry */ 1622e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry switch (_mesa_get_format_datatype(src_mt->format)) { 1623e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_UNSIGNED_NORMALIZED: 1624e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_SIGNED_NORMALIZED: 1625e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_FLOAT: 1626e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_F; 1627e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1628e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_UNSIGNED_INT: 1629e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry if (src_mt->format == MESA_FORMAT_S8) { 1630e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* We process stencil as though it's an unsigned normalized color */ 1631e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_F; 1632e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } else { 1633e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_UD; 1634e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } 1635e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1636e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_INT: 1637e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_D; 1638e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1639e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry default: 1640e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry assert(!"Unrecognized blorp format"); 1641e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1642e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } 1643e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry 16448b1f467cce34340637e9baca4847fc5273cf7541Paul Berry if (brw->intel.gen > 6) { 164560c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry /* Gen7's rendering hardware only supports the IMS layout for depth and 164660c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * stencil render targets. Blorp always maps its destination surface as 164760c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * a color render target (even if it's actually a depth or stencil 164860c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * buffer). So if the destination is IMS, we'll have to map it as a 164960c3e69dbf297426c42e4b8f94c5f0493bd9be5fPaul Berry * single-sampled texture and interleave the samples ourselves. 16508b1f467cce34340637e9baca4847fc5273cf7541Paul Berry */ 16511bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (dst_mt->msaa_layout == INTEL_MSAA_LAYOUT_IMS) 16528b1f467cce34340637e9baca4847fc5273cf7541Paul Berry dst.num_samples = 0; 16538b1f467cce34340637e9baca4847fc5273cf7541Paul Berry } 16548b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 165534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (dst.map_stencil_as_y_tiled && dst.num_samples > 0) { 165634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* If the destination surface is a W-tiled multisampled stencil buffer 165734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * that we're mapping as Y tiled, then we need to arrange for the WM 165834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * program to run once per sample rather than once per pixel, because 165934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * the memory layout of related samples doesn't match between W and Y 166034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * tiling. 1661233c207e9e477b6b0a5c6705e727129b92989073Paul Berry */ 166234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry wm_prog_key.persample_msaa_dispatch = true; 1663233c207e9e477b6b0a5c6705e727129b92989073Paul Berry } 1664233c207e9e477b6b0a5c6705e727129b92989073Paul Berry 166534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (src.num_samples > 0 && dst.num_samples > 0) { 166619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We are blitting from a multisample buffer to a multisample buffer, so 166719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * we must preserve samples within a pixel. This means we have to 166834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * arrange for the WM program to run once per sample rather than once 166934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * per pixel. 167019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 167134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry wm_prog_key.persample_msaa_dispatch = true; 167219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 167319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 167419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* The render path must be configured to use the same number of samples as 167519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the destination buffer. 167619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 167719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry num_samples = dst.num_samples; 167819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 167919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry GLenum base_format = _mesa_get_format_base_format(src_mt->format); 168019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (base_format != GL_DEPTH_COMPONENT && /* TODO: what about depth/stencil? */ 168119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry base_format != GL_STENCIL_INDEX && 168219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry src_mt->num_samples > 0 && dst_mt->num_samples == 0) { 168319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We are downsampling a color buffer, so blend. */ 168419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.blend = true; 168519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 168619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 168719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* src_samples and dst_samples are the true sample counts */ 168819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.src_samples = src_mt->num_samples; 168919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.dst_samples = dst_mt->num_samples; 169019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 169119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* tex_samples and rt_samples are the sample counts that are set up in 169219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * SURFACE_STATE. 169319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 169419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.tex_samples = src.num_samples; 169519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.rt_samples = dst.num_samples; 169619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 16971bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* tex_layout and rt_layout indicate the MSAA layout the GPU pipeline will 16981bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * use to access the source and destination surfaces. 169967b0f7c7dddeb92ee4d24ed3977e20b70f5674f6Paul Berry */ 17001bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.tex_layout = 17011bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry compute_msaa_layout_for_pipeline(brw, src.num_samples, src.msaa_layout); 17021bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.rt_layout = 17031bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry compute_msaa_layout_for_pipeline(brw, dst.num_samples, dst.msaa_layout); 170467b0f7c7dddeb92ee4d24ed3977e20b70f5674f6Paul Berry 17051bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* src_layout and dst_layout indicate the true MSAA layout used by src and 17061bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * dst. 17078b1f467cce34340637e9baca4847fc5273cf7541Paul Berry */ 17081bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.src_layout = src_mt->msaa_layout; 17091bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.dst_layout = dst_mt->msaa_layout; 17108b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 1711506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_prog_key.src_tiled_w = src.map_stencil_as_y_tiled; 1712506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_prog_key.dst_tiled_w = dst.map_stencil_as_y_tiled; 1713506d70be21cd3469118de89297cba0c0f709c1aePaul Berry x0 = wm_push_consts.dst_x0 = dst_x0; 1714506d70be21cd3469118de89297cba0c0f709c1aePaul Berry y0 = wm_push_consts.dst_y0 = dst_y0; 1715506d70be21cd3469118de89297cba0c0f709c1aePaul Berry x1 = wm_push_consts.dst_x1 = dst_x1; 1716506d70be21cd3469118de89297cba0c0f709c1aePaul Berry y1 = wm_push_consts.dst_y1 = dst_y1; 1717506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_push_consts.x_transform.setup(src_x0, dst_x0, dst_x1, mirror_x); 1718506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_push_consts.y_transform.setup(src_y0, dst_y0, dst_y1, mirror_y); 1719506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 172019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (dst.num_samples == 0 && dst_mt->num_samples > 0) { 172119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We must expand the rectangle we send through the rendering pipeline, 172219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * to account for the fact that we are mapping the destination region as 172319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * single-sampled when it is in fact multisampled. We must also align 172419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * it to a multiple of the multisampling pattern, because the 172519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * differences between multisampled and single-sampled surface formats 172619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * will mean that pixels are scrambled within the multisampling pattern. 172719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * TODO: what if this makes the coordinates too large? 17288b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * 17291bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * Note: this only works if the destination surface uses the IMS layout. 17301bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * If it's UMS, then we have no choice but to set up the rendering 17311bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * pipeline as multisampled. 173219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 17331bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(dst_mt->msaa_layout == INTEL_MSAA_LAYOUT_IMS); 1734082874e3891e588f674508be6578f600b35852c4Paul Berry switch (dst_mt->num_samples) { 1735082874e3891e588f674508be6578f600b35852c4Paul Berry case 4: 1736082874e3891e588f674508be6578f600b35852c4Paul Berry x0 = (x0 * 2) & ~3; 1737082874e3891e588f674508be6578f600b35852c4Paul Berry y0 = (y0 * 2) & ~3; 1738082874e3891e588f674508be6578f600b35852c4Paul Berry x1 = ALIGN(x1 * 2, 4); 1739082874e3891e588f674508be6578f600b35852c4Paul Berry y1 = ALIGN(y1 * 2, 4); 1740082874e3891e588f674508be6578f600b35852c4Paul Berry break; 1741082874e3891e588f674508be6578f600b35852c4Paul Berry case 8: 1742082874e3891e588f674508be6578f600b35852c4Paul Berry x0 = (x0 * 4) & ~7; 1743082874e3891e588f674508be6578f600b35852c4Paul Berry y0 = (y0 * 2) & ~3; 1744082874e3891e588f674508be6578f600b35852c4Paul Berry x1 = ALIGN(x1 * 4, 8); 1745082874e3891e588f674508be6578f600b35852c4Paul Berry y1 = ALIGN(y1 * 2, 4); 1746082874e3891e588f674508be6578f600b35852c4Paul Berry break; 1747082874e3891e588f674508be6578f600b35852c4Paul Berry default: 1748082874e3891e588f674508be6578f600b35852c4Paul Berry assert(!"Unrecognized sample count in brw_blorp_blit_params ctor"); 1749082874e3891e588f674508be6578f600b35852c4Paul Berry break; 1750082874e3891e588f674508be6578f600b35852c4Paul Berry } 175119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.use_kill = true; 175219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 175319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 1754506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (dst.map_stencil_as_y_tiled) { 1755506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* We must modify the rectangle we send through the rendering pipeline, 1756506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * to account for the fact that we are mapping it as Y-tiled when it is 1757506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * in fact W-tiled. Y tiles have dimensions 128x32 whereas W tiles have 1758506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * dimensions 64x64. We must also align it to a multiple of the tile 1759506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * size, because the differences between W and Y tiling formats will 1760506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * mean that pixels are scrambled within the tile. 176134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * 17621bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * Note: if the destination surface configured to use IMS layout, then 17631bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * the effective tile size we need to align it to is smaller, because 17641bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * each pixel covers a 2x2 or a 4x2 block of samples. 176534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * 1766506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * TODO: what if this makes the coordinates too large? 1767506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 176834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry unsigned x_align = 64, y_align = 64; 17691bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (dst_mt->msaa_layout == INTEL_MSAA_LAYOUT_IMS) { 177034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry x_align /= (dst_mt->num_samples == 4 ? 2 : 4); 177134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry y_align /= 2; 177234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } 177334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry x0 = (x0 & ~(x_align - 1)) * 2; 177434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry y0 = (y0 & ~(y_align - 1)) / 2; 177534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry x1 = ALIGN(x1, x_align) * 2; 177634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry y1 = ALIGN(y1, y_align) / 2; 1777506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_prog_key.use_kill = true; 1778506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1779506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1780506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1781506d70be21cd3469118de89297cba0c0f709c1aePaul Berryuint32_t 1782506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_params::get_wm_prog(struct brw_context *brw, 1783506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_prog_data **prog_data) const 1784506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1785506d70be21cd3469118de89297cba0c0f709c1aePaul Berry uint32_t prog_offset; 1786506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (!brw_search_cache(&brw->cache, BRW_BLORP_BLIT_PROG, 1787506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &this->wm_prog_key, sizeof(this->wm_prog_key), 1788506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &prog_offset, prog_data)) { 1789506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_blit_program prog(brw, &this->wm_prog_key); 1790506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint program_size; 1791506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const GLuint *program = prog.compile(brw, &program_size); 1792506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_upload_cache(&brw->cache, BRW_BLORP_BLIT_PROG, 1793506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &this->wm_prog_key, sizeof(this->wm_prog_key), 1794506d70be21cd3469118de89297cba0c0f709c1aePaul Berry program, program_size, 1795506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &prog.prog_data, sizeof(prog.prog_data), 1796506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &prog_offset, prog_data); 1797506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1798506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return prog_offset; 1799506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1800