brw_blorp_blit.cpp revision f91b4d92b97664e6354f66138705e93bec363ba0
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" 25506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 26506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "glsl/ralloc.h" 27506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 28506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "intel_fbo.h" 29506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 30506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "brw_blorp.h" 31506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "brw_context.h" 32506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "brw_eu.h" 33506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#include "brw_state.h" 34506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 35506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 36506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 37506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Helper function for handling mirror image blits. 38506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 39506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If coord0 > coord1, swap them and invert the "mirror" boolean. 40506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 41506d70be21cd3469118de89297cba0c0f709c1aePaul Berrystatic inline void 42506d70be21cd3469118de89297cba0c0f709c1aePaul Berryfixup_mirroring(bool &mirror, GLint &coord0, GLint &coord1) 43506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 44506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (coord0 > coord1) { 45506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mirror = !mirror; 46506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint tmp = coord0; 47506d70be21cd3469118de89297cba0c0f709c1aePaul Berry coord0 = coord1; 48506d70be21cd3469118de89297cba0c0f709c1aePaul Berry coord1 = tmp; 49506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 50506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 51506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 52506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 5347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry/** 5447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * Adjust {src,dst}_x{0,1} to account for clipping and scissoring of 5547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * destination coordinates. 5647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * 5747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * Return true if there is still blitting to do, false if all pixels got 5847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * rejected by the clip and/or scissor. 5947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * 6047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * For clarity, the nomenclature of this function assumes we are clipping and 6147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * scissoring the X coordinate; the exact same logic applies for Y 6247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * coordinates. 6375f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry * 6475f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry * Note: this function may also be used to account for clipping of source 6575f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry * coordinates, by swapping the roles of src and dst. 6647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry */ 6747b64c9290d54f78e5a20e378593977cd47e285fPaul Berrystatic inline bool 6847b64c9290d54f78e5a20e378593977cd47e285fPaul Berryclip_or_scissor(bool mirror, GLint &src_x0, GLint &src_x1, GLint &dst_x0, 6947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry GLint &dst_x1, GLint fb_xmin, GLint fb_xmax) 7047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry{ 7147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* If we are going to scissor everything away, stop. */ 7247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (!(fb_xmin < fb_xmax && 7347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry dst_x0 < fb_xmax && 7447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry fb_xmin < dst_x1 && 7547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry dst_x0 < dst_x1)) { 7647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry return false; 7747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 7847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 7947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* Clip the destination rectangle, and keep track of how many pixels we 8047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * clipped off of the left and right sides of it. 8147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry */ 8247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry GLint pixels_clipped_left = 0; 8347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry GLint pixels_clipped_right = 0; 8447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (dst_x0 < fb_xmin) { 8547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry pixels_clipped_left = fb_xmin - dst_x0; 8647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry dst_x0 = fb_xmin; 8747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 8847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (fb_xmax < dst_x1) { 8947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry pixels_clipped_right = dst_x1 - fb_xmax; 9047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry dst_x1 = fb_xmax; 9147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 9247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 9347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* If we are mirrored, then before applying pixels_clipped_{left,right} to 9447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * the source coordinates, we need to flip them to account for the 9547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * mirroring. 9647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry */ 9747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (mirror) { 9847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry GLint tmp = pixels_clipped_left; 9947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry pixels_clipped_left = pixels_clipped_right; 10047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry pixels_clipped_right = tmp; 10147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 10247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 10347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* Adjust the source rectangle to remove the pixels corresponding to those 10447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry * that were clipped/scissored out of the destination rectangle. 10547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry */ 10647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry src_x0 += pixels_clipped_left; 10747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry src_x1 -= pixels_clipped_right; 10847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 10947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry return true; 11047b64c9290d54f78e5a20e378593977cd47e285fPaul Berry} 11147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 11247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 113506d70be21cd3469118de89297cba0c0f709c1aePaul Berrystatic bool 114506d70be21cd3469118de89297cba0c0f709c1aePaul Berrytry_blorp_blit(struct intel_context *intel, 115506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, 116506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, 117506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLenum filter, GLbitfield buffer_bit) 118506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 119506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct gl_context *ctx = &intel->ctx; 120506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 121506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Sync up the state of window system buffers. We need to do this before 122506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * we go looking for the buffers. 123506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 124506d70be21cd3469118de89297cba0c0f709c1aePaul Berry intel_prepare_render(intel); 125506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 126506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Find buffers */ 127506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const struct gl_framebuffer *read_fb = ctx->ReadBuffer; 128506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const struct gl_framebuffer *draw_fb = ctx->DrawBuffer; 129506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct gl_renderbuffer *src_rb; 130506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct gl_renderbuffer *dst_rb; 131506d70be21cd3469118de89297cba0c0f709c1aePaul Berry switch (buffer_bit) { 132506d70be21cd3469118de89297cba0c0f709c1aePaul Berry case GL_COLOR_BUFFER_BIT: 133506d70be21cd3469118de89297cba0c0f709c1aePaul Berry src_rb = read_fb->_ColorReadBuffer; 134506d70be21cd3469118de89297cba0c0f709c1aePaul Berry dst_rb = 135506d70be21cd3469118de89297cba0c0f709c1aePaul Berry draw_fb->Attachment[ 136506d70be21cd3469118de89297cba0c0f709c1aePaul Berry draw_fb->_ColorDrawBufferIndexes[0]].Renderbuffer; 137506d70be21cd3469118de89297cba0c0f709c1aePaul Berry break; 138506d70be21cd3469118de89297cba0c0f709c1aePaul Berry case GL_DEPTH_BUFFER_BIT: 139506d70be21cd3469118de89297cba0c0f709c1aePaul Berry src_rb = read_fb->Attachment[BUFFER_DEPTH].Renderbuffer; 140506d70be21cd3469118de89297cba0c0f709c1aePaul Berry dst_rb = draw_fb->Attachment[BUFFER_DEPTH].Renderbuffer; 141506d70be21cd3469118de89297cba0c0f709c1aePaul Berry break; 142506d70be21cd3469118de89297cba0c0f709c1aePaul Berry case GL_STENCIL_BUFFER_BIT: 143506d70be21cd3469118de89297cba0c0f709c1aePaul Berry src_rb = read_fb->Attachment[BUFFER_STENCIL].Renderbuffer; 144506d70be21cd3469118de89297cba0c0f709c1aePaul Berry dst_rb = draw_fb->Attachment[BUFFER_STENCIL].Renderbuffer; 145506d70be21cd3469118de89297cba0c0f709c1aePaul Berry break; 146506d70be21cd3469118de89297cba0c0f709c1aePaul Berry default: 147506d70be21cd3469118de89297cba0c0f709c1aePaul Berry assert(false); 148506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 149506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 150506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Validate source */ 151506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (!src_rb) return false; 152506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct intel_renderbuffer *src_irb = intel_renderbuffer(src_rb); 153506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct intel_mipmap_tree *src_mt = src_irb->mt; 154506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (!src_mt) return false; 155506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (buffer_bit == GL_STENCIL_BUFFER_BIT && src_mt->stencil_mt) 156506d70be21cd3469118de89297cba0c0f709c1aePaul Berry src_mt = src_mt->stencil_mt; 157506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 158506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Validate destination */ 159506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (!dst_rb) return false; 160506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct intel_renderbuffer *dst_irb = intel_renderbuffer(dst_rb); 161506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct intel_mipmap_tree *dst_mt = dst_irb->mt; 162506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (!dst_mt) return false; 163506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (buffer_bit == GL_STENCIL_BUFFER_BIT && dst_mt->stencil_mt) 164506d70be21cd3469118de89297cba0c0f709c1aePaul Berry dst_mt = dst_mt->stencil_mt; 1659fd0e76a196656f2f14115444f99ec1121879766Paul Berry 1669fd0e76a196656f2f14115444f99ec1121879766Paul Berry /* Blorp blits can't translate from one format to another. For that we'll 1679fd0e76a196656f2f14115444f99ec1121879766Paul Berry * have to fall back to the meta-op blit. Note: the meta-op blit doesn't 1689fd0e76a196656f2f14115444f99ec1121879766Paul Berry * support multisampled blits, but fortunately this is ok because 1699fd0e76a196656f2f14115444f99ec1121879766Paul Berry * multisampled blits require identical source and destination formats. 1709fd0e76a196656f2f14115444f99ec1121879766Paul Berry */ 1719fd0e76a196656f2f14115444f99ec1121879766Paul Berry if (src_mt->format != dst_mt->format) 172506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return false; 173506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 174506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Account for the fact that in the system framebuffer, the origin is at 175506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * the lower left. 176506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 177506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (read_fb->Name == 0) { 178506d70be21cd3469118de89297cba0c0f709c1aePaul Berry srcY0 = read_fb->Height - srcY0; 179506d70be21cd3469118de89297cba0c0f709c1aePaul Berry srcY1 = read_fb->Height - srcY1; 180506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 181506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (draw_fb->Name == 0) { 182506d70be21cd3469118de89297cba0c0f709c1aePaul Berry dstY0 = draw_fb->Height - dstY0; 183506d70be21cd3469118de89297cba0c0f709c1aePaul Berry dstY1 = draw_fb->Height - dstY1; 184506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 185506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 186506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Detect if the blit needs to be mirrored */ 187506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool mirror_x = false, mirror_y = false; 188506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_x, srcX0, srcX1); 189506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_x, dstX0, dstX1); 190506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_y, srcY0, srcY1); 191506d70be21cd3469118de89297cba0c0f709c1aePaul Berry fixup_mirroring(mirror_y, dstY0, dstY1); 192506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 193506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Make sure width and height match */ 194506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLsizei width = srcX1 - srcX0; 195506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLsizei height = srcY1 - srcY0; 196506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (width != dstX1 - dstX0) return false; 197506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (height != dstY1 - dstY0) return false; 198506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 19947b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* If the destination rectangle needs to be clipped or scissored, do so. 200506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 20147b64c9290d54f78e5a20e378593977cd47e285fPaul Berry if (!(clip_or_scissor(mirror_x, srcX0, srcX1, dstX0, dstX1, 20247b64c9290d54f78e5a20e378593977cd47e285fPaul Berry draw_fb->_Xmin, draw_fb->_Xmax) && 20347b64c9290d54f78e5a20e378593977cd47e285fPaul Berry clip_or_scissor(mirror_y, srcY0, srcY1, dstY0, dstY1, 20447b64c9290d54f78e5a20e378593977cd47e285fPaul Berry draw_fb->_Ymin, draw_fb->_Ymax))) { 20547b64c9290d54f78e5a20e378593977cd47e285fPaul Berry /* Everything got clipped/scissored away, so the blit was successful. */ 20647b64c9290d54f78e5a20e378593977cd47e285fPaul Berry return true; 20747b64c9290d54f78e5a20e378593977cd47e285fPaul Berry } 20847b64c9290d54f78e5a20e378593977cd47e285fPaul Berry 20975f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry /* If the source rectangle needs to be clipped or scissored, do so. */ 21075f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry if (!(clip_or_scissor(mirror_x, dstX0, dstX1, srcX0, srcX1, 21175f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry 0, read_fb->Width) && 21275f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry clip_or_scissor(mirror_y, dstY0, dstY1, srcY0, srcY1, 21375f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry 0, read_fb->Height))) { 21475f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry /* Everything got clipped/scissored away, so the blit was successful. */ 21575f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry return true; 21675f409d75cacf90df2d6f1d718251a5d5cd92f7fPaul Berry } 217506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 218506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Get ready to blit. This includes depth resolving the src and dst 219506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * buffers if necessary. 220506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 221506d70be21cd3469118de89297cba0c0f709c1aePaul Berry intel_renderbuffer_resolve_depth(intel, src_irb); 222506d70be21cd3469118de89297cba0c0f709c1aePaul Berry intel_renderbuffer_resolve_depth(intel, dst_irb); 223506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 224506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Do the blit */ 2258b1f467cce34340637e9baca4847fc5273cf7541Paul Berry brw_blorp_blit_params params(brw_context(ctx), src_mt, dst_mt, 226506d70be21cd3469118de89297cba0c0f709c1aePaul Berry srcX0, srcY0, dstX0, dstY0, dstX1, dstY1, 227506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mirror_x, mirror_y); 2286335e0b0738a6e466f0b712e30ad9fe506f67a6cPaul Berry brw_blorp_exec(intel, ¶ms); 229506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 230506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Mark the dst buffer as needing a HiZ resolve if necessary. */ 231506d70be21cd3469118de89297cba0c0f709c1aePaul Berry intel_renderbuffer_set_needs_hiz_resolve(dst_irb); 232506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 233506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return true; 234506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 235506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 236506d70be21cd3469118de89297cba0c0f709c1aePaul BerryGLbitfield 237506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_framebuffer(struct intel_context *intel, 238506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, 239506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, 240506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLbitfield mask, GLenum filter) 241506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 242b08545199ac8a01392a805f158d22cc03060a6fbPaul Berry /* BLORP is not supported before Gen6. */ 243b08545199ac8a01392a805f158d22cc03060a6fbPaul Berry if (intel->gen < 6) 244506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return mask; 245506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 246506d70be21cd3469118de89297cba0c0f709c1aePaul Berry static GLbitfield buffer_bits[] = { 247506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GL_COLOR_BUFFER_BIT, 248506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GL_DEPTH_BUFFER_BIT, 249506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GL_STENCIL_BUFFER_BIT, 250506d70be21cd3469118de89297cba0c0f709c1aePaul Berry }; 251506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 252506d70be21cd3469118de89297cba0c0f709c1aePaul Berry for (unsigned int i = 0; i < ARRAY_SIZE(buffer_bits); ++i) { 253506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if ((mask & buffer_bits[i]) && 254506d70be21cd3469118de89297cba0c0f709c1aePaul Berry try_blorp_blit(intel, 255506d70be21cd3469118de89297cba0c0f709c1aePaul Berry srcX0, srcY0, srcX1, srcY1, 256506d70be21cd3469118de89297cba0c0f709c1aePaul Berry dstX0, dstY0, dstX1, dstY1, 257506d70be21cd3469118de89297cba0c0f709c1aePaul Berry filter, buffer_bits[i])) { 258506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mask &= ~buffer_bits[i]; 259506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 260506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 261506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 262506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return mask; 263506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 264506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 265665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 266665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry/** 267665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry * Enum to specify the order of arguments in a sampler message 268665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry */ 269665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berryenum sampler_message_arg 270665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry{ 271665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_FLOAT, 272665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_V_FLOAT, 273665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 274665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_V_INT, 275233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_SI_INT, 2764ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_MCS_INT, 277233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, 278665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry}; 279665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 280506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 281506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Generator for WM programs used in BLORP blits. 282506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 283506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * The bulk of the work done by the WM program is to wrap and unwrap the 284506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinate transformations used by the hardware to store surfaces in 28519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * memory. The hardware transforms a pixel location (X, Y, S) (where S is the 28619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * sample index for a multisampled surface) to a memory offset by the 28719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * following formulas: 288506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 2898b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * offset = tile(tiling_format, encode_msaa(num_samples, layout, X, Y, S)) 2908b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * (X, Y, S) = decode_msaa(num_samples, layout, detile(tiling_format, offset)) 29119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 2921bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * For a single-sampled surface, or for a multisampled surface using 2931bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * INTEL_MSAA_LAYOUT_UMS, encode_msaa() and decode_msaa are the identity 2941bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * function: 29519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 2961bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * encode_msaa(1, NONE, X, Y, 0) = (X, Y, 0) 2971bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * decode_msaa(1, NONE, X, Y, 0) = (X, Y, 0) 2981bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * encode_msaa(n, UMS, X, Y, S) = (X, Y, S) 2991bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * decode_msaa(n, UMS, X, Y, S) = (X, Y, S) 30019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 3011bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * For a 4x multisampled surface using INTEL_MSAA_LAYOUT_IMS, encode_msaa() 3021bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * embeds the sample number into bit 1 of the X and Y coordinates: 30319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 3041bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * encode_msaa(4, IMS, X, Y, S) = (X', Y', 0) 30519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * where X' = (X & ~0b1) << 1 | (S & 0b1) << 1 | (X & 0b1) 30619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Y' = (Y & ~0b1 ) << 1 | (S & 0b10) | (Y & 0b1) 3071bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * decode_msaa(4, IMS, X, Y, 0) = (X', Y', S) 30819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * where X' = (X & ~0b11) >> 1 | (X & 0b1) 30919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Y' = (Y & ~0b11) >> 1 | (Y & 0b1) 31019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * S = (Y & 0b10) | (X & 0b10) >> 1 311506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 312506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * For X tiling, tile() combines together the low-order bits of the X and Y 313506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates in the pattern 0byyyxxxxxxxxx, creating 4k tiles that are 512 314506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * bytes wide and 8 rows high: 315506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3168b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(x_tiled, X, Y, S) = A 317506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = tile_num << 12 | offset 3188b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile_num = (Y' >> 3) * tile_pitch + (X' >> 9) 3198b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * offset = (Y' & 0b111) << 9 320506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X & 0b111111111) 321506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp 3228b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 3238b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(x_tiled, A) = (X, Y, S) 324506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp 3258b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch 3268b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y' / qpitch 3278b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = (tile_num / tile_pitch) << 3 3288b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b111000000000) >> 9 329506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (tile_num % tile_pitch) << 9 330506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b111111111) 331506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 332506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (In all tiling formulas, cpp is the number of bytes occupied by a single 3338b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * sample ("chars per pixel"), tile_pitch is the number of 4k tiles required 3348b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * to fill the width of the surface, and qpitch is the spacing (in rows) 3358b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * between array slices). 336506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 337506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * For Y tiling, tile() combines together the low-order bits of the X and Y 338506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates in the pattern 0bxxxyyyyyxxxx, creating 4k tiles that are 128 339506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * bytes wide and 32 rows high: 340506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3418b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(y_tiled, X, Y, S) = A 342506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = tile_num << 12 | offset 3438b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile_num = (Y' >> 5) * tile_pitch + (X' >> 7) 344506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * offset = (X' & 0b1110000) << 5 345506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (Y' & 0b11111) << 4 346506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b1111) 347506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp 3488b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 3498b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(y_tiled, A) = (X, Y, S) 350506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp 3518b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch 3528b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y' / qpitch 3538b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = (tile_num / tile_pitch) << 5 3548b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b111110000) >> 4 355506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (tile_num % tile_pitch) << 7 356506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b111000000000) >> 5 357506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b1111) 358506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 359506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * For W tiling, tile() combines together the low-order bits of the X and Y 360506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates in the pattern 0bxxxyyyyxyxyx, creating 4k tiles that are 64 361506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * bytes wide and 64 rows high (note that W tiling is only used for stencil 3628b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * buffers, which always have cpp = 1 and S=0): 363506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3648b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(w_tiled, X, Y, S) = A 365506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = tile_num << 12 | offset 3668b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile_num = (Y' >> 6) * tile_pitch + (X' >> 6) 367506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * offset = (X' & 0b111000) << 6 3688b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (Y' & 0b111100) << 3 369506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b100) << 2 3708b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (Y' & 0b10) << 2 371506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b10) << 1 3728b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (Y' & 0b1) << 1 373506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (X' & 0b1) 374506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp = X 3758b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 3768b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(w_tiled, A) = (X, Y, S) 377506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp = X' 3788b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch = Y' 3798b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y / qpitch = 0 3808b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = (tile_num / tile_pitch) << 6 3818b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b111100000) >> 3 3828b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b1000) >> 2 3838b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * | (A & 0b10) >> 1 384506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (tile_num % tile_pitch) << 6 385506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b111000000000) >> 6 386506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b10000) >> 2 387506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b100) >> 1 388506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * | (A & 0b1) 389506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 390506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Finally, for a non-tiled surface, tile() simply combines together the X and 391506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y coordinates in the natural way: 392506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 3938b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * tile(untiled, X, Y, S) = A 394506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where A = Y * pitch + X' 395506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = X * cpp 3968b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = Y + S * qpitch 3978b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * detile(untiled, A) = (X, Y, S) 398506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * where X = X' / cpp 3998b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y = Y' % qpitch 4008b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * S = Y' / qpitch 401506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = A % pitch 4028b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * Y' = A / pitch 403506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 404506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (In these formulas, pitch is the number of bytes occupied by a single row 40519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * of samples). 406506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 407506d70be21cd3469118de89297cba0c0f709c1aePaul Berryclass brw_blorp_blit_program 408506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 409506d70be21cd3469118de89297cba0c0f709c1aePaul Berrypublic: 410506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_blit_program(struct brw_context *brw, 411506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const brw_blorp_blit_prog_key *key); 412506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ~brw_blorp_blit_program(); 413506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 414506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const GLuint *compile(struct brw_context *brw, GLuint *program_size); 415506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 416506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_prog_data prog_data; 417506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 418506d70be21cd3469118de89297cba0c0f709c1aePaul Berryprivate: 419506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void alloc_regs(); 420506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void alloc_push_const_regs(int base_reg); 421506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void compute_frag_coords(); 422506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void translate_tiling(bool old_tiled_w, bool new_tiled_w); 4231bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry void encode_msaa(unsigned num_samples, intel_msaa_layout layout); 4241bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry void decode_msaa(unsigned num_samples, intel_msaa_layout layout); 425506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void kill_if_outside_dst_rect(); 426506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void translate_dst_to_src(); 42719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry void single_to_blend(); 4284725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry void manual_blend(); 4294725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry void sample(struct brw_reg dst); 4304725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry void texel_fetch(struct brw_reg dst); 4314ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry void mcs_fetch(); 432665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry void expand_to_32_bits(struct brw_reg src, struct brw_reg dst); 4334725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry void texture_lookup(struct brw_reg dst, GLuint msg_type, 4344725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry const sampler_message_arg *args, int num_args); 435506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void render_target_write(); 436506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 437b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /** 438b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * Base-2 logarithm of the maximum number of samples that can be blended. 439b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry */ 440b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry static const unsigned LOG2_MAX_BLEND_SAMPLES = 2; 441b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 442506d70be21cd3469118de89297cba0c0f709c1aePaul Berry void *mem_ctx; 443506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_context *brw; 444506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const brw_blorp_blit_prog_key *key; 445506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_compile func; 446506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 447506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Thread dispatch header */ 448506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg R0; 449506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 450506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Pixel X/Y coordinates (always in R1). */ 451506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg R1; 452506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 453506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Push constants */ 454506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_x0; 455506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_x1; 456506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_y0; 457506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg dst_y1; 458506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct { 459506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg multiplier; 460506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg offset; 461506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } x_transform, y_transform; 462506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 463b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Data read from texture (4 vec16's per array element) */ 464b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry struct brw_reg texture_data[LOG2_MAX_BLEND_SAMPLES + 1]; 465506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 4664ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry /* Auxiliary storage for the contents of the MCS surface. 4674ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry * 4684ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry * Since the sampler always returns 8 registers worth of data, this is 8 4694ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry * registers wide, even though we only use the first 2 registers of it. 4704ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry */ 4714ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry struct brw_reg mcs_data; 4724ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry 473506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* X coordinates. We have two of them so that we can perform coordinate 474506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * transformations easily. 475506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 476506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg x_coords[2]; 477506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 478506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Y coordinates. We have two of them so that we can perform coordinate 479506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * transformations easily. 480506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 481506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg y_coords[2]; 482506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 483506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Which element of x_coords and y_coords is currently in use. 484506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 485506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int xy_coord_index; 486506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 48719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* True if, at the point in the program currently being compiled, the 48819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * sample index is known to be zero. 48919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 49019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry bool s_is_zero; 49119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 49219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Register storing the sample index when s_is_zero is false. */ 49319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry struct brw_reg sample_index; 49419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 495506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Temporaries */ 496506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg t1; 497506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg t2; 498506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 499665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry /* MRF used for sampling and render target writes */ 500506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint base_mrf; 501506d70be21cd3469118de89297cba0c0f709c1aePaul Berry}; 502506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 503506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::brw_blorp_blit_program( 504506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_context *brw, 505506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const brw_blorp_blit_prog_key *key) 506506d70be21cd3469118de89297cba0c0f709c1aePaul Berry : mem_ctx(ralloc_context(NULL)), 507506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw(brw), 508506d70be21cd3469118de89297cba0c0f709c1aePaul Berry key(key) 509506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 510506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_init_compile(brw, &func, mem_ctx); 511506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 512506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 513506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::~brw_blorp_blit_program() 514506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 515506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ralloc_free(mem_ctx); 516506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 517506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 518506d70be21cd3469118de89297cba0c0f709c1aePaul Berryconst GLuint * 519506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::compile(struct brw_context *brw, 520506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint *program_size) 521506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 52219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Sanity checks */ 52334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (key->dst_tiled_w && key->rt_samples > 0) { 52434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* If the destination image is W tiled and multisampled, then the thread 52534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * must be dispatched once per sample, not once per pixel. This is 52634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * necessary because after conversion between W and Y tiling, there's no 52719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * guarantee that all samples corresponding to a single pixel will still 52819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * be together. 52919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 53034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry assert(key->persample_msaa_dispatch); 53119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 53219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 53319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (key->blend) { 5344725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry /* We are blending, which means we won't have an opportunity to 5354725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry * translate the tiling and sample count for the texture surface. So 53619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the surface state for the texture must be configured with the correct 53719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * tiling and sample count. 53819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 53919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry assert(!key->src_tiled_w); 54019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry assert(key->tex_samples == key->src_samples); 5411bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(key->tex_layout == key->src_layout); 54219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry assert(key->tex_samples > 0); 54319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 54419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 54534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (key->persample_msaa_dispatch) { 54634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* It only makes sense to do persample dispatch if the render target is 54734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * configured as multisampled. 54834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry */ 54934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry assert(key->rt_samples > 0); 55034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } 55134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry 5521bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* Make sure layout is consistent with sample count */ 5531bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->tex_layout == INTEL_MSAA_LAYOUT_NONE) == 5541bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->tex_samples == 0)); 5551bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->rt_layout == INTEL_MSAA_LAYOUT_NONE) == 5561bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->rt_samples == 0)); 5571bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->src_layout == INTEL_MSAA_LAYOUT_NONE) == 5581bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->src_samples == 0)); 5591bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert((key->dst_layout == INTEL_MSAA_LAYOUT_NONE) == 5601bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry (key->dst_samples == 0)); 5618b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 56234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* Set up prog_data */ 56334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry memset(&prog_data, 0, sizeof(prog_data)); 56434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry prog_data.persample_msaa_dispatch = key->persample_msaa_dispatch; 56534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry 566506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_compression_control(&func, BRW_COMPRESSION_NONE); 567506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 568506d70be21cd3469118de89297cba0c0f709c1aePaul Berry alloc_regs(); 569506d70be21cd3469118de89297cba0c0f709c1aePaul Berry compute_frag_coords(); 570506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 571506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Render target and texture hardware don't support W tiling. */ 572506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const bool rt_tiled_w = false; 573506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const bool tex_tiled_w = false; 574506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 575506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* The address that data will be written to is determined by the 57619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * coordinates supplied to the WM thread and the tiling and sample count of 57719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the render target, according to the formula: 578506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 57919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (X, Y, S) = decode_msaa(rt_samples, detile(rt_tiling, offset)) 580506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 58119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * If the actual tiling and sample count of the destination surface are not 58219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the same as the configuration of the render target, then these 58319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * coordinates are wrong and we have to adjust them to compensate for the 58419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * difference. 585506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 58619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (rt_tiled_w != key->dst_tiled_w || 5878b1f467cce34340637e9baca4847fc5273cf7541Paul Berry key->rt_samples != key->dst_samples || 5881bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry key->rt_layout != key->dst_layout) { 5891bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry encode_msaa(key->rt_samples, key->rt_layout); 5908b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(rt_tiling, offset) */ 591506d70be21cd3469118de89297cba0c0f709c1aePaul Berry translate_tiling(rt_tiled_w, key->dst_tiled_w); 5928b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(dst_tiling, offset) */ 5931bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry decode_msaa(key->dst_samples, key->dst_layout); 59419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 595506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 59619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Now (X, Y, S) = decode_msaa(dst_samples, detile(dst_tiling, offset)). 597506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 59819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * That is: X, Y and S now contain the true coordinates and sample index of 59919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the data that the WM thread should output. 600506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 601506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If we need to kill pixels that are outside the destination rectangle, 602506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * now is the time to do it. 603506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 604506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 605506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (key->use_kill) 606506d70be21cd3469118de89297cba0c0f709c1aePaul Berry kill_if_outside_dst_rect(); 607506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 608506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Next, apply a translation to obtain coordinates in the source image. */ 609506d70be21cd3469118de89297cba0c0f709c1aePaul Berry translate_dst_to_src(); 610506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 61119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* If the source image is not multisampled, then we want to fetch sample 61219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * number 0, because that's the only sample there is. 613506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 61419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (key->src_samples == 0) 61519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry s_is_zero = true; 616506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 61719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* X, Y, and S are now the coordinates of the pixel in the source image 61819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * that we want to texture from. Exception: if we are blending, then S is 61919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * irrelevant, because we are going to fetch all samples. 620506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 62119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (key->blend) { 6224725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry if (brw->intel.gen == 6) { 6234725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry /* Gen6 hardware an automatically blend using the SAMPLE message */ 6244725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry single_to_blend(); 625b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry sample(texture_data[0]); 6264725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } else { 6274725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry /* Gen7+ hardware doesn't automaticaly blend. */ 6284725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry manual_blend(); 6294725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 63019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } else { 63119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We aren't blending, which means we just want to fetch a single sample 63219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * from the source surface. The address that we want to fetch from is 63319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * related to the X, Y and S values according to the formula: 63419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 63519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (X, Y, S) = decode_msaa(src_samples, detile(src_tiling, offset)). 63619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 63719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * If the actual tiling and sample count of the source surface are not 63819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the same as the configuration of the texture, then we need to adjust 63919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the coordinates to compensate for the difference. 64019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 64119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (tex_tiled_w != key->src_tiled_w || 6428b1f467cce34340637e9baca4847fc5273cf7541Paul Berry key->tex_samples != key->src_samples || 6431bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry key->tex_layout != key->src_layout) { 6441bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry encode_msaa(key->src_samples, key->src_layout); 6458b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(src_tiling, offset) */ 64619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry translate_tiling(key->src_tiled_w, tex_tiled_w); 6478b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* Now (X, Y, S) = detile(tex_tiling, offset) */ 6481bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry decode_msaa(key->tex_samples, key->tex_layout); 64919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 650506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 65119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Now (X, Y, S) = decode_msaa(tex_samples, detile(tex_tiling, offset)). 65219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 65319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * In other words: X, Y, and S now contain values which, when passed to 65419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the texturing unit, will cause data to be read from the correct 65519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * memory location. So we can fetch the texel now. 65619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 6574ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry if (key->tex_layout == INTEL_MSAA_LAYOUT_CMS) 6584ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry mcs_fetch(); 659b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry texel_fetch(texture_data[0]); 66019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 66119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 66219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* Finally, write the fetched (or blended) value to the render target and 66319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * terminate the thread. 664506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 665506d70be21cd3469118de89297cba0c0f709c1aePaul Berry render_target_write(); 666506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return brw_get_program(&func, program_size); 667506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 668506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 669506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 670506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::alloc_push_const_regs(int base_reg) 671506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 672506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define CONST_LOC(name) offsetof(brw_blorp_wm_push_constants, name) 673506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define ALLOC_REG(name) \ 674506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->name = \ 675506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_uw1_reg(BRW_GENERAL_REGISTER_FILE, base_reg, CONST_LOC(name) / 2) 676506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 677506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_x0); 678506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_x1); 679506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_y0); 680506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(dst_y1); 681506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(x_transform.multiplier); 682506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(x_transform.offset); 683506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(y_transform.multiplier); 684506d70be21cd3469118de89297cba0c0f709c1aePaul Berry ALLOC_REG(y_transform.offset); 685506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef CONST_LOC 686506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef ALLOC_REG 687506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 688506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 689506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 690506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::alloc_regs() 691506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 692506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int reg = 0; 693506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->R0 = retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW); 694506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->R1 = retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW); 695506d70be21cd3469118de89297cba0c0f709c1aePaul Berry prog_data.first_curbe_grf = reg; 696506d70be21cd3469118de89297cba0c0f709c1aePaul Berry alloc_push_const_regs(reg); 697506d70be21cd3469118de89297cba0c0f709c1aePaul Berry reg += BRW_BLORP_NUM_PUSH_CONST_REGS; 698b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry for (unsigned i = 0; i < ARRAY_SIZE(texture_data); ++i) { 699e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry this->texture_data[i] = 700e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry retype(vec16(brw_vec8_grf(reg, 0)), key->texture_data_type); 701e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry reg += 8; 702b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } 7034ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry this->mcs_data = 7044ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry retype(brw_vec8_grf(reg, 0), BRW_REGISTER_TYPE_UD); reg += 8; 705506d70be21cd3469118de89297cba0c0f709c1aePaul Berry for (int i = 0; i < 2; ++i) { 706506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->x_coords[i] 707506d70be21cd3469118de89297cba0c0f709c1aePaul Berry = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 708506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->y_coords[i] 709506d70be21cd3469118de89297cba0c0f709c1aePaul Berry = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 710506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 711506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->xy_coord_index = 0; 71219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry this->sample_index 71319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 714506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->t1 = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 715506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->t2 = vec16(retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW)); 716506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 717b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Make sure we didn't run out of registers */ 718b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(reg <= GEN7_MRF_HACK_START); 719b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 720506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int mrf = 2; 721506d70be21cd3469118de89297cba0c0f709c1aePaul Berry this->base_mrf = mrf; 722506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 723506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 724506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/* In the code that follows, X and Y can be used to quickly refer to the 725506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * active elements of x_coords and y_coords, and Xp and Yp ("X prime" and "Y 726506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * prime") to the inactive elements. 72719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 72819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * S can be used to quickly refer to sample_index. 729506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 730506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define X x_coords[xy_coord_index] 731506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define Y y_coords[xy_coord_index] 732506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define Xp x_coords[!xy_coord_index] 733506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define Yp y_coords[!xy_coord_index] 73419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry#define S sample_index 735506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 736506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/* Quickly swap the roles of (X, Y) and (Xp, Yp). Saves us from having to do 737506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * MOVs to transfor (Xp, Yp) to (X, Y) after a coordinate transformation. 738506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 739506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#define SWAP_XY_AND_XPYP() xy_coord_index = !xy_coord_index; 740506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 741506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 742506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to compute the X and Y coordinates of the pixels being rendered 743506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * by this WM invocation. 744506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 745506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Assuming the render target is set up for Y tiling, these (X, Y) values are 746506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * related to the address offset where outputs will be written by the formula: 747506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 748506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (X, Y, S) = decode_msaa(detile(offset)). 749506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 750506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (See brw_blorp_blit_program). 751506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 752506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 753506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::compute_frag_coords() 754506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 755506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* R1.2[15:0] = X coordinate of upper left pixel of subspan 0 (pixel 0) 756506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.3[15:0] = X coordinate of upper left pixel of subspan 1 (pixel 4) 757506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.4[15:0] = X coordinate of upper left pixel of subspan 2 (pixel 8) 758506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.5[15:0] = X coordinate of upper left pixel of subspan 3 (pixel 12) 759506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 760506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Pixels within a subspan are laid out in this arrangement: 761506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 0 1 762506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 2 3 763506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 764506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * So, to compute the coordinates of each pixel, we need to read every 2nd 765506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 16-bit value (vstride=2) from R1, starting at the 4th 16-bit value 766506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (suboffset=4), and duplicate each value 4 times (hstride=0, width=4). 767506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * In other words, the data we want to access is R1.4<2;4,0>UW. 768506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 769506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Then, we need to add the repeating sequence (0, 1, 0, 1, ...) to the 770506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * result, since pixels n+1 and n+3 are in the right half of the subspan. 771506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 772506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, X, stride(suboffset(R1, 4), 2, 4, 0), brw_imm_v(0x10101010)); 773506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 774506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Similarly, Y coordinates for subspans come from R1.2[31:16] through 775506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.5[31:16], so to get pixel Y coordinates we need to start at the 5th 776506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 16-bit value instead of the 4th (R1.5<2;4,0>UW instead of 777506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * R1.4<2;4,0>UW). 778506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 779506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * And we need to add the repeating sequence (0, 0, 1, 1, ...), since 780506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * pixels n+2 and n+3 are in the bottom half of the subspan. 781506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 782506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, Y, stride(suboffset(R1, 5), 2, 4, 0), brw_imm_v(0x11001100)); 78319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 78434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (key->persample_msaa_dispatch) { 78534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* The WM will be run in MSDISPMODE_PERSAMPLE with num_samples > 0. 78634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * Therefore, subspan 0 will represent sample 0, subspan 1 will 78734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * represent sample 1, and so on. 78834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * 78934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * So we need to populate S with the sequence (0, 0, 0, 0, 1, 1, 1, 1, 79034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * 2, 2, 2, 2, 3, 3, 3, 3). The easiest way to do this is to populate a 79134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * temporary variable with the sequence (0, 1, 2, 3), and then copy from 79234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * it using vstride=1, width=4, hstride=0. 79334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * 79434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * TODO: implement the necessary calculation for 8x multisampling. 79534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry */ 79634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry brw_MOV(&func, t1, brw_imm_v(0x3210)); 79734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry brw_MOV(&func, S, stride(t1, 1, 4, 0)); 79834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry s_is_zero = false; 79934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } else { 80034a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* Either the destination surface is single-sampled, or the WM will be 80134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * run in MSDISPMODE_PERPIXEL (which causes a single fragment dispatch 80234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * per pixel). In either case, it's not meaningful to compute a sample 80334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * value. Just set it to 0. 80434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry */ 80534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry s_is_zero = true; 80634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } 807506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 808506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 809506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 810506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to compensate for the difference between Y and W tiling. 811506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 812506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * This code modifies the X and Y coordinates according to the formula: 813506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 8148b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * (X', Y', S') = detile(new_tiling, tile(old_tiling, X, Y, S)) 815506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 816506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (See brw_blorp_blit_program). 817506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 818506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * It can only translate between W and Y tiling, so new_tiling and old_tiling 819506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * are booleans where true represents W tiling and false represents Y tiling. 820506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 821506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 822506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::translate_tiling(bool old_tiled_w, bool new_tiled_w) 823506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 824506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (old_tiled_w == new_tiled_w) 825506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return; 826506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 8278b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* In the code that follows, we can safely assume that S = 0, because W 8281bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * tiling formats always use IMS layout. 8298b1f467cce34340637e9baca4847fc5273cf7541Paul Berry */ 8308b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 8318b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 832506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (new_tiled_w) { 833506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Given X and Y coordinates that describe an address using Y tiling, 834506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * translate to the X and Y coordinates that describe the same address 835506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * using W tiling. 836506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 837506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If we break down the low order bits of X and Y, using a 838506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * single letter to represent each low-order bit: 839506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 840506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X = A << 7 | 0bBCDEFGH 841506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y = J << 5 | 0bKLMNP (1) 842506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 843506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Then we can apply the Y tiling formula to see the memory offset being 844506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * addressed: 845506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 846506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * offset = (J * tile_pitch + A) << 12 | 0bBCDKLMNPEFGH (2) 847506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 848506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * If we apply the W detiling formula to this memory location, that the 849506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * corresponding X' and Y' coordinates are: 850506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 851506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = A << 6 | 0bBCDPFH (3) 852506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y' = J << 6 | 0bKLMNEG 853506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 854506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Combining (1) and (3), we see that to transform (X, Y) to (X', Y'), 855506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * we need to make the following computation: 856506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 857506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (X & ~0b1011) >> 1 | (Y & 0b1) << 2 | X & 0b1 (4) 858506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y' = (Y & ~0b1) << 1 | (X & 0b1000) >> 2 | (X & 0b10) >> 1 859506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 860506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfff4)); /* X & ~0b1011 */ 861506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b1011) >> 1 */ 862506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 863506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(2)); /* (Y & 0b1) << 2 */ 864506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b1011) >> 1 | (Y & 0b1) << 2 */ 865506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 866506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Xp, t1, t2); 867506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffe)); /* Y & ~0b1 */ 868506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b1) << 1 */ 869506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(8)); /* X & 0b1000 */ 870506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(2)); /* (X & 0b1000) >> 2 */ 871506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (Y & ~0b1) << 1 | (X & 0b1000) >> 2 */ 872506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(2)); /* X & 0b10 */ 873506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(1)); /* (X & 0b10) >> 1 */ 874506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Yp, t1, t2); 875506d70be21cd3469118de89297cba0c0f709c1aePaul Berry SWAP_XY_AND_XPYP(); 876506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } else { 877506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Applying the same logic as above, but in reverse, we obtain the 878506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * formulas: 879506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * 880506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * X' = (X & ~0b101) << 1 | (Y & 0b10) << 2 | (Y & 0b1) << 1 | X & 0b1 881506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Y' = (Y & ~0b11) >> 1 | (X & 0b100) >> 2 882506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 883506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffa)); /* X & ~0b101 */ 884506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b101) << 1 */ 885506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, Y, brw_imm_uw(2)); /* Y & 0b10 */ 886506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(2)); /* (Y & 0b10) << 2 */ 887506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b101) << 1 | (Y & 0b10) << 2 */ 888506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 889506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHL(&func, t2, t2, brw_imm_uw(1)); /* (Y & 0b1) << 1 */ 890506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b101) << 1 | (Y & 0b10) << 2 891506d70be21cd3469118de89297cba0c0f709c1aePaul Berry | (Y & 0b1) << 1 */ 892506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 893506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Xp, t1, t2); 894506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffc)); /* Y & ~0b11 */ 895506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b11) >> 1 */ 896506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, t2, X, brw_imm_uw(4)); /* X & 0b100 */ 897506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(2)); /* (X & 0b100) >> 2 */ 898506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_OR(&func, Yp, t1, t2); 899506d70be21cd3469118de89297cba0c0f709c1aePaul Berry SWAP_XY_AND_XPYP(); 900506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 901506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 902506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 903506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 90419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to compensate for the difference between MSAA and non-MSAA 90519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * surfaces. 90619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 90719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * This code modifies the X and Y coordinates according to the formula: 90819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 9098b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * (X', Y', S') = encode_msaa_4x(X, Y, S) 91019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 91119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (See brw_blorp_blit_program). 91219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 91319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 9141bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berrybrw_blorp_blit_program::encode_msaa(unsigned num_samples, 9151bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry intel_msaa_layout layout) 91619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 9171bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry switch (layout) { 9181bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_NONE: 9198b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* No translation necessary, and S should already be zero. */ 9208b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 9211bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 9221bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_CMS: 9231bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* We can't compensate for compressed layout since at this point in the 9241bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * program we haven't read from the MCS buffer. 9251bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 9261bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(!"Bad layout in encode_msaa"); 9271bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 9281bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_UMS: 92919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* No translation necessary. */ 9301bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 9311bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_IMS: 9321bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* encode_msaa(4, IMS, X, Y, S) = (X', Y', 0) 93319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * where X' = (X & ~0b1) << 1 | (S & 0b1) << 1 | (X & 0b1) 93419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Y' = (Y & ~0b1 ) << 1 | (S & 0b10) | (Y & 0b1) 93519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 93619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffe)); /* X & ~0b1 */ 93719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (!s_is_zero) { 93819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t2, S, brw_imm_uw(1)); /* S & 0b1 */ 93919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_OR(&func, t1, t1, t2); /* (X & ~0b1) | (S & 0b1) */ 94019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 94119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b1) << 1 94219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry | (S & 0b1) << 1 */ 94319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 94419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_OR(&func, Xp, t1, t2); 94519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffe)); /* Y & ~0b1 */ 94619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHL(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b1) << 1 */ 94719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (!s_is_zero) { 94819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t2, S, brw_imm_uw(2)); /* S & 0b10 */ 94919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_OR(&func, t1, t1, t2); /* (Y & ~0b1) << 1 | (S & 0b10) */ 95019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 95119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); 95219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_OR(&func, Yp, t1, t2); 95319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry SWAP_XY_AND_XPYP(); 9548b1f467cce34340637e9baca4847fc5273cf7541Paul Berry s_is_zero = true; 9551bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 95619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 95719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 95819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 95919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 96019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to compensate for the difference between MSAA and non-MSAA 96119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * surfaces. 96219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 96319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * This code modifies the X and Y coordinates according to the formula: 96419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 9658b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * (X', Y', S) = decode_msaa(num_samples, X, Y, S) 96619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * 96719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * (See brw_blorp_blit_program). 96819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 96919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 9701bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berrybrw_blorp_blit_program::decode_msaa(unsigned num_samples, 9711bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry intel_msaa_layout layout) 97219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 9731bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry switch (layout) { 9741bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_NONE: 9758b1f467cce34340637e9baca4847fc5273cf7541Paul Berry /* No translation necessary, and S should already be zero. */ 9768b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 9771bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 9781bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_CMS: 9791bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* We can't compensate for compressed layout since at this point in the 9801bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * program we don't have access to the MCS buffer. 9811bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 9821bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(!"Bad layout in encode_msaa"); 9831bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 9841bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_UMS: 98519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* No translation necessary. */ 9861bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 9871bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry case INTEL_MSAA_LAYOUT_IMS: 9881bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* decode_msaa(4, IMS, X, Y, 0) = (X', Y', S) 98919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * where X' = (X & ~0b11) >> 1 | (X & 0b1) 99019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Y' = (Y & ~0b11) >> 1 | (Y & 0b1) 99119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * S = (Y & 0b10) | (X & 0b10) >> 1 99219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 9938b1f467cce34340637e9baca4847fc5273cf7541Paul Berry assert(s_is_zero); 99419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t1, X, brw_imm_uw(0xfffc)); /* X & ~0b11 */ 99519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (X & ~0b11) >> 1 */ 99619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t2, X, brw_imm_uw(1)); /* X & 0b1 */ 99719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_OR(&func, Xp, t1, t2); 99819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(0xfffc)); /* Y & ~0b11 */ 99919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHR(&func, t1, t1, brw_imm_uw(1)); /* (Y & ~0b11) >> 1 */ 100019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t2, Y, brw_imm_uw(1)); /* Y & 0b1 */ 100119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_OR(&func, Yp, t1, t2); 100219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t1, Y, brw_imm_uw(2)); /* Y & 0b10 */ 100319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_AND(&func, t2, X, brw_imm_uw(2)); /* X & 0b10 */ 100419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHR(&func, t2, t2, brw_imm_uw(1)); /* (X & 0b10) >> 1 */ 100519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_OR(&func, S, t1, t2); 100619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry s_is_zero = false; 100719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry SWAP_XY_AND_XPYP(); 10081bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry break; 100919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 101019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 101119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 101219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 1013506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code that kills pixels whose X and Y coordinates are outside the 1014506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * boundary of the rectangle defined by the push constants (dst_x0, dst_y0, 1015506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * dst_x1, dst_y1). 1016506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1017506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1018506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::kill_if_outside_dst_rect() 1019506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1020506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg f0 = brw_flag_reg(); 1021506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg g1 = retype(brw_vec1_grf(1, 7), BRW_REGISTER_TYPE_UW); 1022506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct brw_reg null16 = vec16(retype(brw_null_reg(), BRW_REGISTER_TYPE_UW)); 1023506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1024506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_GE, X, dst_x0); 1025506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_GE, Y, dst_y0); 1026506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_L, X, dst_x1); 1027506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_CMP(&func, null16, BRW_CONDITIONAL_L, Y, dst_y1); 1028506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1029506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_predicate_control(&func, BRW_PREDICATE_NONE); 1030506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_push_insn_state(&func); 1031506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_mask_control(&func, BRW_MASK_DISABLE); 1032506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_AND(&func, g1, f0, g1); 1033506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_pop_insn_state(&func); 1034506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1035506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1036506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 1037506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to translate from destination (X, Y) coordinates to source (X, Y) 1038506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * coordinates. 1039506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1040506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1041506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::translate_dst_to_src() 1042506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1043506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_MUL(&func, Xp, X, x_transform.multiplier); 1044506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_MUL(&func, Yp, Y, y_transform.multiplier); 1045506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, Xp, Xp, x_transform.offset); 1046506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_ADD(&func, Yp, Yp, y_transform.offset); 1047506d70be21cd3469118de89297cba0c0f709c1aePaul Berry SWAP_XY_AND_XPYP(); 1048506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1049506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1050506d70be21cd3469118de89297cba0c0f709c1aePaul Berry/** 105119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to transform the X and Y coordinates as needed for blending 105219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * together the different samples in an MSAA texture. 105319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 105419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 105519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berrybrw_blorp_blit_program::single_to_blend() 105619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 105719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* When looking up samples in an MSAA texture using the SAMPLE message, 105819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Gen6 requires the texture coordinates to be odd integers (so that they 105919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * correspond to the center of a 2x2 block representing the four samples 106019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * that maxe up a pixel). So we need to multiply our X and Y coordinates 106119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * each by 2 and then add 1. 106219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 106319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHL(&func, t1, X, brw_imm_w(1)); 106419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_SHL(&func, t2, Y, brw_imm_w(1)); 106519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_ADD(&func, Xp, t1, brw_imm_w(1)); 106619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry brw_ADD(&func, Yp, t2, brw_imm_w(1)); 106719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry SWAP_XY_AND_XPYP(); 106819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 106919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 1070b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1071b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry/** 1072b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * Count the number of trailing 1 bits in the given value. For example: 1073b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1074b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * count_trailing_one_bits(0) == 0 1075b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * count_trailing_one_bits(7) == 3 1076b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * count_trailing_one_bits(11) == 2 1077b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry */ 1078b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berryinline int count_trailing_one_bits(unsigned value) 1079b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry{ 1080b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */ 1081b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry return __builtin_ctz(~value); 1082b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry#else 1083b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry return _mesa_bitcount(value & ~(value + 1)); 1084b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry#endif 1085b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry} 1086b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1087b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 10884725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berryvoid 10894725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berrybrw_blorp_blit_program::manual_blend() 10904725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry{ 10914725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry /* TODO: support num_samples != 4 */ 10924725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry const int num_samples = 4; 10934725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry 10944ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry if (key->tex_layout == INTEL_MSAA_LAYOUT_CMS) 10954ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry mcs_fetch(); 10964ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry 1097b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* We add together samples using a binary tree structure, e.g. for 4x MSAA: 1098b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1099b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * result = ((sample[0] + sample[1]) + (sample[2] + sample[3])) / 4 1100b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1101b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * This ensures that when all samples have the same value, no numerical 1102b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * precision is lost, since each addition operation always adds two equal 1103b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * values, and summing two equal floating point values does not lose 1104b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * precision. 1105b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1106b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * We perform this computation by treating the texture_data array as a 1107b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * stack and performing the following operations: 1108b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1109b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 0 onto stack 1110b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 1 onto stack 1111b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - add top two stack entries 1112b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 2 onto stack 1113b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - push sample 3 onto stack 1114b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - add top two stack entries 1115b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - add top two stack entries 1116b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * - divide top stack entry by 4 1117b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * 1118b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * Note that after pushing sample i onto the stack, the number of add 1119b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * operations we do is equal to the number of trailing 1 bits in i. This 1120b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * works provided the total number of samples is a power of two, which it 1121b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry * always is for i965. 1122e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * 1123e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * For integer formats, we replace the add operations with average 1124e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * operations and skip the final division. 1125b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry */ 1126e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry typedef struct brw_instruction *(*brw_op2_ptr)(struct brw_compile *, 1127e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg, 1128e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg, 1129e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg); 1130e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry brw_op2_ptr combine_op = 1131e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry key->texture_data_type == BRW_REGISTER_TYPE_F ? brw_ADD : brw_AVG; 1132b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry unsigned stack_depth = 0; 1133b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry for (int i = 0; i < num_samples; ++i) { 1134b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth == _mesa_bitcount(i)); /* Loop invariant */ 1135b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1136b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Push sample i onto the stack */ 1137b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth < ARRAY_SIZE(texture_data)); 1138b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry if (i == 0) { 1139b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry s_is_zero = true; 1140b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } else { 1141b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry s_is_zero = false; 1142b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry brw_MOV(&func, S, brw_imm_uw(i)); 1143b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } 1144b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry texel_fetch(texture_data[stack_depth++]); 1145b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1146f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry if (i == 0 && key->tex_layout == INTEL_MSAA_LAYOUT_CMS) { 1147f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry /* The Ivy Bridge PRM, Vol4 Part1 p27 (Multisample Control Surface) 1148f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * suggests an optimization: 1149f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * 1150f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * "A simple optimization with probable large return in 1151f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * performance is to compare the MCS value to zero (indicating 1152f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * all samples are on sample slice 0), and sample only from 1153f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * sample slice 0 using ld2dss if MCS is zero." 1154f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * 1155f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * Note that in the case where the MCS value is zero, sampling from 1156f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * sample slice 0 using ld2dss and sampling from sample 0 using 1157f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * ld2dms are equivalent (since all samples are on sample slice 0). 1158f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * Since we have already sampled from sample 0, all we need to do is 1159f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry * skip the remaining fetches and averaging if MCS is zero. 1160f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry */ 1161f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry brw_CMP(&func, vec16(brw_null_reg()), BRW_CONDITIONAL_NZ, 1162f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry mcs_data, brw_imm_ud(0)); 1163f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry brw_IF(&func, BRW_EXECUTE_16); 1164f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry } 1165f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry 1166b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* Do count_trailing_one_bits(i) times */ 1167b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry for (int j = count_trailing_one_bits(i); j-- > 0; ) { 1168b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth >= 2); 1169b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry --stack_depth; 1170b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1171b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* TODO: should use a smaller loop bound for non_RGBA formats */ 1172b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry for (int k = 0; k < 4; ++k) { 1173e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry combine_op(&func, offset(texture_data[stack_depth - 1], 2*k), 1174e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry offset(vec8(texture_data[stack_depth - 1]), 2*k), 1175e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry offset(vec8(texture_data[stack_depth]), 2*k)); 1176b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry } 11774725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 11784725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 11794725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry 1180b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry /* We should have just 1 sample on the stack now. */ 1181b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry assert(stack_depth == 1); 1182b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry 1183e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry if (key->texture_data_type == BRW_REGISTER_TYPE_F) { 1184e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* Scale the result down by a factor of num_samples */ 1185e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* TODO: should use a smaller loop bound for non-RGBA formats */ 1186e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry for (int j = 0; j < 4; ++j) { 1187e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry brw_MUL(&func, offset(texture_data[0], 2*j), 1188e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry offset(vec8(texture_data[0]), 2*j), 1189e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry brw_imm_f(1.0/num_samples)); 1190e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } 11914725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry } 1192f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry 1193f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry if (key->tex_layout == INTEL_MSAA_LAYOUT_CMS) 1194f91b4d92b97664e6354f66138705e93bec363ba0Paul Berry brw_ENDIF(&func); 11954725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry} 11964725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry 119719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 119819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * Emit code to look up a value in the texture using the SAMPLE message (which 119919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * does blending of MSAA surfaces). 120019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 120119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berryvoid 12024725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berrybrw_blorp_blit_program::sample(struct brw_reg dst) 120319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry{ 1204665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry static const sampler_message_arg args[2] = { 1205665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_FLOAT, 1206665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_V_FLOAT 1207665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry }; 1208665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 12094725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry texture_lookup(dst, GEN5_SAMPLER_MESSAGE_SAMPLE, args, ARRAY_SIZE(args)); 121019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry} 121119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 121219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry/** 1213506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Emit code to look up a value in the texture using the SAMPLE_LD message 1214506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * (which does a simple texel fetch). 1215506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1216506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 12174725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berrybrw_blorp_blit_program::texel_fetch(struct brw_reg dst) 1218506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 12191c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry static const sampler_message_arg gen6_args[5] = { 1220665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 1221233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_V_INT, 1222233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, /* R */ 1223233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, /* LOD */ 1224233c207e9e477b6b0a5c6705e727129b92989073Paul Berry SAMPLER_MESSAGE_ARG_SI_INT 1225665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry }; 12261c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry static const sampler_message_arg gen7_ld_args[3] = { 12271c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 12281c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_ZERO_INT, /* LOD */ 12291c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_V_INT 12301c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry }; 12311c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry static const sampler_message_arg gen7_ld2dss_args[3] = { 12321c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_SI_INT, 12331c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 12341c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry SAMPLER_MESSAGE_ARG_V_INT 12351c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry }; 12364ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry static const sampler_message_arg gen7_ld2dms_args[4] = { 12374ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_SI_INT, 12384ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_MCS_INT, 12394ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 12404ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_V_INT 12414ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry }; 1242665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 12431c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry switch (brw->intel.gen) { 12441c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry case 6: 12454725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry texture_lookup(dst, GEN5_SAMPLER_MESSAGE_SAMPLE_LD, gen6_args, 12461c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry s_is_zero ? 2 : 5); 12471c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry break; 12481c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry case 7: 12491c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry if (key->tex_samples > 0) { 12504ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry if (key->tex_layout == INTEL_MSAA_LAYOUT_CMS) { 12514ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry texture_lookup(dst, GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DMS, 12524ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry gen7_ld2dms_args, ARRAY_SIZE(gen7_ld2dms_args)); 12534ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry } else { 12544ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry texture_lookup(dst, GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DSS, 12554ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry gen7_ld2dss_args, ARRAY_SIZE(gen7_ld2dss_args)); 12564ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry } 12571c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry } else { 12581c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry assert(s_is_zero); 12594725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry texture_lookup(dst, GEN5_SAMPLER_MESSAGE_SAMPLE_LD, gen7_ld_args, 12601c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry ARRAY_SIZE(gen7_ld_args)); 12611c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry } 12621c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry break; 12631c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry default: 12641c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry assert(!"Should not get here."); 12651c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry break; 12661c73c705fadf164d61003415e3380f2d06f2e7b3Paul Berry }; 1267506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1268506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1269506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 12704ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berrybrw_blorp_blit_program::mcs_fetch() 12714ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry{ 12724ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry static const sampler_message_arg gen7_ld_mcs_args[2] = { 12734ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_U_INT, 12744ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry SAMPLER_MESSAGE_ARG_V_INT 12754ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry }; 12764ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry texture_lookup(vec16(mcs_data), GEN7_SAMPLER_MESSAGE_SAMPLE_LD_MCS, 12774ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry gen7_ld_mcs_args, ARRAY_SIZE(gen7_ld_mcs_args)); 12784ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry} 12794ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry 12804ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berryvoid 1281665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berrybrw_blorp_blit_program::expand_to_32_bits(struct brw_reg src, 1282665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry struct brw_reg dst) 1283506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1284665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry brw_MOV(&func, vec8(dst), vec8(src)); 1285506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_compression_control(&func, BRW_COMPRESSION_2NDHALF); 1286665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry brw_MOV(&func, offset(vec8(dst), 1), suboffset(vec8(src), 8)); 1287506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_set_compression_control(&func, BRW_COMPRESSION_NONE); 1288665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry} 1289665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 1290665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berryvoid 12914725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berrybrw_blorp_blit_program::texture_lookup(struct brw_reg dst, 12924725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry GLuint msg_type, 1293665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry const sampler_message_arg *args, 1294665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry int num_args) 1295665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry{ 1296665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry struct brw_reg mrf = 1297665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry retype(vec16(brw_message_reg(base_mrf)), BRW_REGISTER_TYPE_UD); 1298665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry for (int arg = 0; arg < num_args; ++arg) { 1299665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry switch (args[arg]) { 1300665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_U_FLOAT: 1301665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(X, retype(mrf, BRW_REGISTER_TYPE_F)); 1302665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1303665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_V_FLOAT: 1304665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(Y, retype(mrf, BRW_REGISTER_TYPE_F)); 1305665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1306665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_U_INT: 1307665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(X, mrf); 1308665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1309665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry case SAMPLER_MESSAGE_ARG_V_INT: 1310665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry expand_to_32_bits(Y, mrf); 1311665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry break; 1312233c207e9e477b6b0a5c6705e727129b92989073Paul Berry case SAMPLER_MESSAGE_ARG_SI_INT: 1313233c207e9e477b6b0a5c6705e727129b92989073Paul Berry /* Note: on Gen7, this code may be reached with s_is_zero==true 1314233c207e9e477b6b0a5c6705e727129b92989073Paul Berry * because in Gen7's ld2dss message, the sample index is the first 1315233c207e9e477b6b0a5c6705e727129b92989073Paul Berry * argument. When this happens, we need to move a 0 into the 1316233c207e9e477b6b0a5c6705e727129b92989073Paul Berry * appropriate message register. 1317233c207e9e477b6b0a5c6705e727129b92989073Paul Berry */ 1318233c207e9e477b6b0a5c6705e727129b92989073Paul Berry if (s_is_zero) 1319233c207e9e477b6b0a5c6705e727129b92989073Paul Berry brw_MOV(&func, mrf, brw_imm_ud(0)); 1320233c207e9e477b6b0a5c6705e727129b92989073Paul Berry else 1321233c207e9e477b6b0a5c6705e727129b92989073Paul Berry expand_to_32_bits(S, mrf); 1322233c207e9e477b6b0a5c6705e727129b92989073Paul Berry break; 13234ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry case SAMPLER_MESSAGE_ARG_MCS_INT: 13244ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry brw_MOV(&func, mrf, mcs_data); 13254ebbc766210190cb1f03fa4fc762bf7ecc0c7f90Paul Berry break; 1326233c207e9e477b6b0a5c6705e727129b92989073Paul Berry case SAMPLER_MESSAGE_ARG_ZERO_INT: 1327233c207e9e477b6b0a5c6705e727129b92989073Paul Berry brw_MOV(&func, mrf, brw_imm_ud(0)); 1328233c207e9e477b6b0a5c6705e727129b92989073Paul Berry break; 1329665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry } 1330665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry mrf.nr += 2; 1331665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry } 1332506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1333506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_SAMPLE(&func, 13344725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry retype(dst, BRW_REGISTER_TYPE_UW) /* dest */, 1335506d70be21cd3469118de89297cba0c0f709c1aePaul Berry base_mrf /* msg_reg_nr */, 1336665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry brw_message_reg(base_mrf) /* src0 */, 1337506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_BLORP_TEXTURE_BINDING_TABLE_INDEX, 1338665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry 0 /* sampler */, 1339506d70be21cd3469118de89297cba0c0f709c1aePaul Berry WRITEMASK_XYZW, 1340506d70be21cd3469118de89297cba0c0f709c1aePaul Berry msg_type, 1341506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 8 /* response_length. TODO: should be smaller for non-RGBA formats? */, 1342665dc82bdc0e83854dd0f700ec264021bfb5cb39Paul Berry mrf.nr - base_mrf /* msg_length */, 1343506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 0 /* header_present */, 1344506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_SAMPLER_SIMD_MODE_SIMD16, 1345506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_SAMPLER_RETURN_FORMAT_FLOAT32); 1346506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1347506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1348506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef X 1349506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef Y 1350506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef U 1351506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef V 1352506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef S 1353506d70be21cd3469118de89297cba0c0f709c1aePaul Berry#undef SWAP_XY_AND_XPYP 1354506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1355506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1356506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_program::render_target_write() 1357506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1358e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry struct brw_reg mrf_rt_write = 1359e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry retype(vec16(brw_message_reg(base_mrf)), key->texture_data_type); 1360506d70be21cd3469118de89297cba0c0f709c1aePaul Berry int mrf_offset = 0; 1361506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1362506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* If we may have killed pixels, then we need to send R0 and R1 in a header 1363506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * so that the render target knows which pixels we killed. 1364506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1365506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool use_header = key->use_kill; 1366506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (use_header) { 1367506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Copy R0/1 to MRF */ 1368506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_MOV(&func, retype(mrf_rt_write, BRW_REGISTER_TYPE_UD), 1369506d70be21cd3469118de89297cba0c0f709c1aePaul Berry retype(R0, BRW_REGISTER_TYPE_UD)); 1370506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_offset += 2; 1371506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1372506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1373506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Copy texture data to MRFs */ 1374506d70be21cd3469118de89297cba0c0f709c1aePaul Berry for (int i = 0; i < 4; ++i) { 1375506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* E.g. mov(16) m2.0<1>:f r2.0<8;8,1>:f { Align1, H1 } */ 13764725ba03cae87ddbf1fa10feaca3d42f24115f91Paul Berry brw_MOV(&func, offset(mrf_rt_write, mrf_offset), 1377b961d37e613b8b14927c42e09d16d09d70ebcb77Paul Berry offset(vec8(texture_data[0]), 2*i)); 1378506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_offset += 2; 1379506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1380506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1381506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* Now write to the render target and terminate the thread */ 1382506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_fb_WRITE(&func, 1383506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 16 /* dispatch_width */, 1384506d70be21cd3469118de89297cba0c0f709c1aePaul Berry base_mrf /* msg_reg_nr */, 1385506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_rt_write /* src0 */, 138629362875f2613ad87abe7725ce3c56c36d16cf9bEric Anholt BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD16_SINGLE_SOURCE, 1387506d70be21cd3469118de89297cba0c0f709c1aePaul Berry BRW_BLORP_RENDERBUFFER_BINDING_TABLE_INDEX, 1388506d70be21cd3469118de89297cba0c0f709c1aePaul Berry mrf_offset /* msg_length. TODO: Should be smaller for non-RGBA formats. */, 1389506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 0 /* response_length */, 1390506d70be21cd3469118de89297cba0c0f709c1aePaul Berry true /* eot */, 1391506d70be21cd3469118de89297cba0c0f709c1aePaul Berry use_header); 1392506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1393506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1394506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1395506d70be21cd3469118de89297cba0c0f709c1aePaul Berryvoid 1396506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_coord_transform_params::setup(GLuint src0, GLuint dst0, GLuint dst1, 1397506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool mirror) 1398506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1399506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (!mirror) { 1400506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* When not mirroring a coordinate (say, X), we need: 1401506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' - src_x0 = x - dst_x0 1402506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Therefore: 1403506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' = 1*x + (src_x0 - dst_x0) 1404506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1405506d70be21cd3469118de89297cba0c0f709c1aePaul Berry multiplier = 1; 1406506d70be21cd3469118de89297cba0c0f709c1aePaul Berry offset = src0 - dst0; 1407506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } else { 1408506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* When mirroring X we need: 1409506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' - src_x0 = dst_x1 - x - 1 1410506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * Therefore: 1411506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * x' = -1*x + (src_x0 + dst_x1 - 1) 1412506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 1413506d70be21cd3469118de89297cba0c0f709c1aePaul Berry multiplier = -1; 1414506d70be21cd3469118de89297cba0c0f709c1aePaul Berry offset = src0 + dst1 - 1; 1415506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1416506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1417506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1418506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 14191bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry/** 14201bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * Determine which MSAA layout the GPU pipeline should be configured for, 14211bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * based on the chip generation, the number of samples, and the true layout of 14221bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * the image in memory. 14231bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 14241bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berryinline intel_msaa_layout 14251bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berrycompute_msaa_layout_for_pipeline(struct brw_context *brw, unsigned num_samples, 14261bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry intel_msaa_layout true_layout) 14271bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry{ 14281bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (num_samples == 0) { 14291bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* When configuring the GPU for non-MSAA, we can still accommodate IMS 14301bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * format buffers, by transforming coordinates appropriately. 14311bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 14321bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(true_layout == INTEL_MSAA_LAYOUT_NONE || 14331bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry true_layout == INTEL_MSAA_LAYOUT_IMS); 14341bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry return INTEL_MSAA_LAYOUT_NONE; 14351bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry } 14361bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 14371bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* Prior to Gen7, all MSAA surfaces use IMS layout. */ 14381bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (brw->intel.gen == 6) { 14391bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(true_layout == INTEL_MSAA_LAYOUT_IMS); 14401bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry return INTEL_MSAA_LAYOUT_IMS; 14411bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry } 14421bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 14431bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* Since blorp uses color textures and render targets to do all its work 14441bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * (even when blitting stencil and depth data), we always have to configure 14451bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * the Gen7 GPU to use UMS or CMS layout on Gen7. 14461bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry */ 14471bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(true_layout == INTEL_MSAA_LAYOUT_UMS || 14481bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry true_layout == INTEL_MSAA_LAYOUT_CMS); 14491bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry return true_layout; 14501bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry} 14511bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 14521bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry 14538b1f467cce34340637e9baca4847fc5273cf7541Paul Berrybrw_blorp_blit_params::brw_blorp_blit_params(struct brw_context *brw, 14548b1f467cce34340637e9baca4847fc5273cf7541Paul Berry struct intel_mipmap_tree *src_mt, 1455506d70be21cd3469118de89297cba0c0f709c1aePaul Berry struct intel_mipmap_tree *dst_mt, 1456506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint src_x0, GLuint src_y0, 1457506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint dst_x0, GLuint dst_y0, 1458506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint dst_x1, GLuint dst_y1, 1459506d70be21cd3469118de89297cba0c0f709c1aePaul Berry bool mirror_x, bool mirror_y) 1460506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1461530bda2aacf77b1e4661e5e5dd05cf108640e657Paul Berry src.set(brw, src_mt, 0, 0); 1462530bda2aacf77b1e4661e5e5dd05cf108640e657Paul Berry dst.set(brw, dst_mt, 0, 0); 1463506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1464506d70be21cd3469118de89297cba0c0f709c1aePaul Berry use_wm_prog = true; 1465506d70be21cd3469118de89297cba0c0f709c1aePaul Berry memset(&wm_prog_key, 0, sizeof(wm_prog_key)); 1466506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1467e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* texture_data_type indicates the register type that should be used to 1468e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry * manipulate texture data. 1469e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry */ 1470e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry switch (_mesa_get_format_datatype(src_mt->format)) { 1471e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_UNSIGNED_NORMALIZED: 1472e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_SIGNED_NORMALIZED: 1473e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_FLOAT: 1474e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_F; 1475e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1476e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_UNSIGNED_INT: 1477e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry if (src_mt->format == MESA_FORMAT_S8) { 1478e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry /* We process stencil as though it's an unsigned normalized color */ 1479e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_F; 1480e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } else { 1481e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_UD; 1482e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } 1483e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1484e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry case GL_INT: 1485e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_D; 1486e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1487e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry default: 1488e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry assert(!"Unrecognized blorp format"); 1489e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry break; 1490e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry } 1491e5d983267a98bf9f73f0ea981eaca339b975a8dbPaul Berry 14928b1f467cce34340637e9baca4847fc5273cf7541Paul Berry if (brw->intel.gen > 6) { 14931bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* Gen7's texturing hardware only supports the IMS layout with the 14948b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * ld2dms instruction (which blorp doesn't use). So if the source is 14951bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * IMS, we'll have to map it as a single-sampled texture and 14961bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * de-interleave the samples ourselves. 14978b1f467cce34340637e9baca4847fc5273cf7541Paul Berry */ 14981bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (src_mt->msaa_layout == INTEL_MSAA_LAYOUT_IMS) 14998b1f467cce34340637e9baca4847fc5273cf7541Paul Berry src.num_samples = 0; 15008b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 15011bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* Similarly, Gen7's rendering hardware only supports the IMS layout for 15021bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * depth and stencil render targets. Blorp always maps its destination 15031bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * surface as a color render target (even if it's actually a depth or 15041bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * stencil buffer). So if the destination is IMS, we'll have to map it 15051bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * as a single-sampled texture and interleave the samples ourselves. 15068b1f467cce34340637e9baca4847fc5273cf7541Paul Berry */ 15071bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (dst_mt->msaa_layout == INTEL_MSAA_LAYOUT_IMS) 15088b1f467cce34340637e9baca4847fc5273cf7541Paul Berry dst.num_samples = 0; 15098b1f467cce34340637e9baca4847fc5273cf7541Paul Berry } 15108b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 151134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (dst.map_stencil_as_y_tiled && dst.num_samples > 0) { 151234a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry /* If the destination surface is a W-tiled multisampled stencil buffer 151334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * that we're mapping as Y tiled, then we need to arrange for the WM 151434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * program to run once per sample rather than once per pixel, because 151534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * the memory layout of related samples doesn't match between W and Y 151634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * tiling. 1517233c207e9e477b6b0a5c6705e727129b92989073Paul Berry */ 151834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry wm_prog_key.persample_msaa_dispatch = true; 1519233c207e9e477b6b0a5c6705e727129b92989073Paul Berry } 1520233c207e9e477b6b0a5c6705e727129b92989073Paul Berry 152134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry if (src.num_samples > 0 && dst.num_samples > 0) { 152219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We are blitting from a multisample buffer to a multisample buffer, so 152319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * we must preserve samples within a pixel. This means we have to 152434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * arrange for the WM program to run once per sample rather than once 152534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * per pixel. 152619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 152734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry wm_prog_key.persample_msaa_dispatch = true; 152819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 152919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 153019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* The render path must be configured to use the same number of samples as 153119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * the destination buffer. 153219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 153319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry num_samples = dst.num_samples; 153419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 153519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry GLenum base_format = _mesa_get_format_base_format(src_mt->format); 153619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (base_format != GL_DEPTH_COMPONENT && /* TODO: what about depth/stencil? */ 153719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry base_format != GL_STENCIL_INDEX && 153819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry src_mt->num_samples > 0 && dst_mt->num_samples == 0) { 153919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We are downsampling a color buffer, so blend. */ 154019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.blend = true; 154119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 154219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 154319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* src_samples and dst_samples are the true sample counts */ 154419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.src_samples = src_mt->num_samples; 154519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.dst_samples = dst_mt->num_samples; 154619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 154719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* tex_samples and rt_samples are the sample counts that are set up in 154819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * SURFACE_STATE. 154919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 155019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.tex_samples = src.num_samples; 155119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.rt_samples = dst.num_samples; 155219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 15531bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* tex_layout and rt_layout indicate the MSAA layout the GPU pipeline will 15541bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * use to access the source and destination surfaces. 155567b0f7c7dddeb92ee4d24ed3977e20b70f5674f6Paul Berry */ 15561bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.tex_layout = 15571bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry compute_msaa_layout_for_pipeline(brw, src.num_samples, src.msaa_layout); 15581bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.rt_layout = 15591bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry compute_msaa_layout_for_pipeline(brw, dst.num_samples, dst.msaa_layout); 156067b0f7c7dddeb92ee4d24ed3977e20b70f5674f6Paul Berry 15611bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry /* src_layout and dst_layout indicate the true MSAA layout used by src and 15621bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * dst. 15638b1f467cce34340637e9baca4847fc5273cf7541Paul Berry */ 15641bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.src_layout = src_mt->msaa_layout; 15651bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry wm_prog_key.dst_layout = dst_mt->msaa_layout; 15668b1f467cce34340637e9baca4847fc5273cf7541Paul Berry 1567506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_prog_key.src_tiled_w = src.map_stencil_as_y_tiled; 1568506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_prog_key.dst_tiled_w = dst.map_stencil_as_y_tiled; 1569506d70be21cd3469118de89297cba0c0f709c1aePaul Berry x0 = wm_push_consts.dst_x0 = dst_x0; 1570506d70be21cd3469118de89297cba0c0f709c1aePaul Berry y0 = wm_push_consts.dst_y0 = dst_y0; 1571506d70be21cd3469118de89297cba0c0f709c1aePaul Berry x1 = wm_push_consts.dst_x1 = dst_x1; 1572506d70be21cd3469118de89297cba0c0f709c1aePaul Berry y1 = wm_push_consts.dst_y1 = dst_y1; 1573506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_push_consts.x_transform.setup(src_x0, dst_x0, dst_x1, mirror_x); 1574506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_push_consts.y_transform.setup(src_y0, dst_y0, dst_y1, mirror_y); 1575506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 157619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry if (dst.num_samples == 0 && dst_mt->num_samples > 0) { 157719e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry /* We must expand the rectangle we send through the rendering pipeline, 157819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * to account for the fact that we are mapping the destination region as 157919e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * single-sampled when it is in fact multisampled. We must also align 158019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * it to a multiple of the multisampling pattern, because the 158119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * differences between multisampled and single-sampled surface formats 158219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * will mean that pixels are scrambled within the multisampling pattern. 158319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry * TODO: what if this makes the coordinates too large? 15848b1f467cce34340637e9baca4847fc5273cf7541Paul Berry * 15851bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * Note: this only works if the destination surface uses the IMS layout. 15861bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * If it's UMS, then we have no choice but to set up the rendering 15871bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * pipeline as multisampled. 158819e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry */ 15891bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry assert(dst_mt->msaa_layout == INTEL_MSAA_LAYOUT_IMS); 159019e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry x0 = (x0 * 2) & ~3; 159119e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry y0 = (y0 * 2) & ~3; 159219e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry x1 = ALIGN(x1 * 2, 4); 159319e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry y1 = ALIGN(y1 * 2, 4); 159419e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry wm_prog_key.use_kill = true; 159519e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry } 159619e9b24626c2b9d7abef054d57bb2a52106c545bPaul Berry 1597506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (dst.map_stencil_as_y_tiled) { 1598506d70be21cd3469118de89297cba0c0f709c1aePaul Berry /* We must modify the rectangle we send through the rendering pipeline, 1599506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * to account for the fact that we are mapping it as Y-tiled when it is 1600506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * in fact W-tiled. Y tiles have dimensions 128x32 whereas W tiles have 1601506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * dimensions 64x64. We must also align it to a multiple of the tile 1602506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * size, because the differences between W and Y tiling formats will 1603506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * mean that pixels are scrambled within the tile. 160434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * 16051bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * Note: if the destination surface configured to use IMS layout, then 16061bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * the effective tile size we need to align it to is smaller, because 16071bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry * each pixel covers a 2x2 or a 4x2 block of samples. 160834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry * 1609506d70be21cd3469118de89297cba0c0f709c1aePaul Berry * TODO: what if this makes the coordinates too large? 1610506d70be21cd3469118de89297cba0c0f709c1aePaul Berry */ 161134a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry unsigned x_align = 64, y_align = 64; 16121bd4d456cdecf7bea55f4e3dac574af54efad994Paul Berry if (dst_mt->msaa_layout == INTEL_MSAA_LAYOUT_IMS) { 161334a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry x_align /= (dst_mt->num_samples == 4 ? 2 : 4); 161434a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry y_align /= 2; 161534a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry } 161634a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry x0 = (x0 & ~(x_align - 1)) * 2; 161734a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry y0 = (y0 & ~(y_align - 1)) / 2; 161834a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry x1 = ALIGN(x1, x_align) * 2; 161934a5f12e35dd4a5aff6683a8286d4582ba17df14Paul Berry y1 = ALIGN(y1, y_align) / 2; 1620506d70be21cd3469118de89297cba0c0f709c1aePaul Berry wm_prog_key.use_kill = true; 1621506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1622506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1623506d70be21cd3469118de89297cba0c0f709c1aePaul Berry 1624506d70be21cd3469118de89297cba0c0f709c1aePaul Berryuint32_t 1625506d70be21cd3469118de89297cba0c0f709c1aePaul Berrybrw_blorp_blit_params::get_wm_prog(struct brw_context *brw, 1626506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_prog_data **prog_data) const 1627506d70be21cd3469118de89297cba0c0f709c1aePaul Berry{ 1628506d70be21cd3469118de89297cba0c0f709c1aePaul Berry uint32_t prog_offset; 1629506d70be21cd3469118de89297cba0c0f709c1aePaul Berry if (!brw_search_cache(&brw->cache, BRW_BLORP_BLIT_PROG, 1630506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &this->wm_prog_key, sizeof(this->wm_prog_key), 1631506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &prog_offset, prog_data)) { 1632506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_blorp_blit_program prog(brw, &this->wm_prog_key); 1633506d70be21cd3469118de89297cba0c0f709c1aePaul Berry GLuint program_size; 1634506d70be21cd3469118de89297cba0c0f709c1aePaul Berry const GLuint *program = prog.compile(brw, &program_size); 1635506d70be21cd3469118de89297cba0c0f709c1aePaul Berry brw_upload_cache(&brw->cache, BRW_BLORP_BLIT_PROG, 1636506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &this->wm_prog_key, sizeof(this->wm_prog_key), 1637506d70be21cd3469118de89297cba0c0f709c1aePaul Berry program, program_size, 1638506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &prog.prog_data, sizeof(prog.prog_data), 1639506d70be21cd3469118de89297cba0c0f709c1aePaul Berry &prog_offset, prog_data); 1640506d70be21cd3469118de89297cba0c0f709c1aePaul Berry } 1641506d70be21cd3469118de89297cba0c0f709c1aePaul Berry return prog_offset; 1642506d70be21cd3469118de89297cba0c0f709c1aePaul Berry} 1643