1aa1a5c0c9e0de71ecd15e7190c121d6dd98471a6Ian Romanick/* 2877128505431adaf817dc8069172ebe4a1cdf5d8José Fonseca * Copyright 2003 VMware, Inc. 33e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt * Copyright 2009, 2012 Intel Corporation. 44451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * All Rights Reserved. 511892ea986b5fdad345ce7c09f97e0389e546509Eric Anholt * 64451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * Permission is hereby granted, free of charge, to any person obtaining a 74451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * copy of this software and associated documentation files (the 84451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * "Software"), to deal in the Software without restriction, including 94451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * without limitation the rights to use, copy, modify, merge, publish, 10284dcad20a9a55278c1d3dd98f53e45650b22896Ian Romanick * distribute, sublicense, and/or sell copies of the Software, and to 114451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * permit persons to whom the Software is furnished to do so, subject to 124451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * the following conditions: 1311892ea986b5fdad345ce7c09f97e0389e546509Eric Anholt * 144451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * The above copyright notice and this permission notice (including the 154451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * next paragraph) shall be included in all copies or substantial portions 164451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * of the Software. 1711892ea986b5fdad345ce7c09f97e0389e546509Eric Anholt * 184451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 194451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20284dcad20a9a55278c1d3dd98f53e45650b22896Ian Romanick * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 21877128505431adaf817dc8069172ebe4a1cdf5d8José Fonseca * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 224451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 234451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 244451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25aa1a5c0c9e0de71ecd15e7190c121d6dd98471a6Ian Romanick */ 264451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 27c96bac0950eda6e707455b0c1ee29c1d87daf727Eric Anholt#include "main/mtypes.h" 281df72402d99145425531297eef6772b88ce5225dEric Anholt#include "main/condrender.h" 29c96bac0950eda6e707455b0c1ee29c1d87daf727Eric Anholt#include "swrast/swrast.h" 3050d8b295f6c950da3b8783ff6e1803bdfbb5c7ccBrian Paul#include "drivers/common/meta.h" 31c96bac0950eda6e707455b0c1ee29c1d87daf727Eric Anholt 3268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt#include "intel_batchbuffer.h" 334451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul#include "intel_blit.h" 344451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul#include "intel_fbo.h" 3568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt#include "intel_mipmap_tree.h" 364451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 37c5d5827951fb321a58cc781b4e386551035ebf1aPaul Berry#include "brw_context.h" 38e56095dc2e40d6d1e37e123c694a609d16932b4aEric Anholt#include "brw_blorp.h" 397d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen#include "brw_defines.h" 40c5d5827951fb321a58cc781b4e386551035ebf1aPaul Berry 414451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul#define FILE_DEBUG_FLAG DEBUG_BLIT 424451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 434451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paulstatic const char *buffer_names[] = { 444451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_FRONT_LEFT] = "front", 454451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_BACK_LEFT] = "back", 464451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_FRONT_RIGHT] = "front right", 474451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_BACK_RIGHT] = "back right", 484451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_DEPTH] = "depth", 494451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_STENCIL] = "stencil", 504451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_ACCUM] = "accum", 51555f0a88182e2b1af809b2d97abdac02814a2f28Brian Paul [BUFFER_AUX0] = "aux0", 524451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR0] = "color0", 534451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR1] = "color1", 544451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR2] = "color2", 554451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR3] = "color3", 564451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR4] = "color4", 574451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR5] = "color5", 584451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR6] = "color6", 594451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR7] = "color7", 604451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul}; 614451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 62bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholtstatic void 63bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholtdebug_mask(const char *name, GLbitfield mask) 64bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt{ 65bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt GLuint i; 66bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt 67bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt if (unlikely(INTEL_DEBUG & DEBUG_BLIT)) { 68bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt DBG("%s clear:", name); 69bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt for (i = 0; i < BUFFER_COUNT; i++) { 70bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt if (mask & (1 << i)) 71bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt DBG(" %s", buffer_names[i]); 72bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt } 73bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt DBG("\n"); 74bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt } 75bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt} 76bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt 774451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul/** 78097b4a3b28ecab81b356b86f04a939d24b94ae77Kenneth Graunke * Returns true if the scissor is a noop (cuts out nothing). 79097b4a3b28ecab81b356b86f04a939d24b94ae77Kenneth Graunke */ 80097b4a3b28ecab81b356b86f04a939d24b94ae77Kenneth Graunkestatic bool 8149c24d8a241ead2f0906d8e9523ab3aba0d8a73dJordan Justennoop_scissor(struct gl_framebuffer *fb) 82097b4a3b28ecab81b356b86f04a939d24b94ae77Kenneth Graunke{ 8349c24d8a241ead2f0906d8e9523ab3aba0d8a73dJordan Justen return fb->_Xmin <= 0 && 8449c24d8a241ead2f0906d8e9523ab3aba0d8a73dJordan Justen fb->_Ymin <= 0 && 8549c24d8a241ead2f0906d8e9523ab3aba0d8a73dJordan Justen fb->_Xmax >= fb->Width && 8649c24d8a241ead2f0906d8e9523ab3aba0d8a73dJordan Justen fb->_Ymax >= fb->Height; 87097b4a3b28ecab81b356b86f04a939d24b94ae77Kenneth Graunke} 88097b4a3b28ecab81b356b86f04a939d24b94ae77Kenneth Graunke 89097b4a3b28ecab81b356b86f04a939d24b94ae77Kenneth Graunke/** 9068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * Implements fast depth clears on gen6+. 9168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 9268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * Fast clears basically work by setting a flag in each of the subspans 9368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * represented in the HiZ buffer that says "When you need the depth values for 9468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * this subspan, it's the hardware's current clear value." Then later rendering 9568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * can just use the static clear value instead of referencing memory. 9668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 9768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * The tricky part of the implementation is that you have to have the clear 9868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * value that was used on the depth buffer in place for all further rendering, 9968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * at least until a resolve to the real depth buffer happens. 10068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 10168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholtstatic bool 10268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholtbrw_fast_clear_depth(struct gl_context *ctx) 10368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt{ 104ca437579b3974b91a5298707c459908a628c1098Kenneth Graunke struct brw_context *brw = brw_context(ctx); 10568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt struct gl_framebuffer *fb = ctx->DrawBuffer; 10668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt struct intel_renderbuffer *depth_irb = 10768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt intel_get_renderbuffer(fb, BUFFER_DEPTH); 10868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt struct intel_mipmap_tree *mt = depth_irb->mt; 1097b36137642f8946bbc85b45124fefda38ca5332eJordan Justen struct gl_renderbuffer_attachment *depth_att = &fb->Attachment[BUFFER_DEPTH]; 11068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 11198e048cf323c22688bfa465153e648005e555d12Kenneth Graunke if (brw->gen < 6) 11268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 11368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 1142d3bbc576c095f0942d131db886f5661dec5680cChad Versace if (!intel_renderbuffer_has_hiz(depth_irb)) 11568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 11668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 11768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* We only handle full buffer clears -- otherwise you'd have to track whether 11868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * a previous clear had happened at a different clear value and resolve it 11968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * first. 12068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 12149c24d8a241ead2f0906d8e9523ab3aba0d8a73dJordan Justen if ((ctx->Scissor.EnableFlags & 1) && !noop_scissor(fb)) { 12277a44512d9ed56be5e53ebf09e917b5aeeba0189Ben Widawsky perf_debug("Failed to fast clear %dx%d depth because of scissors. " 12377a44512d9ed56be5e53ebf09e917b5aeeba0189Ben Widawsky "Possible 5%% performance win if avoided.\n", 12477a44512d9ed56be5e53ebf09e917b5aeeba0189Ben Widawsky mt->logical_width0, mt->logical_height0); 12568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 126b4da272a6ea58a7c81c71477d65d82651555709aEric Anholt } 12768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 12868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt uint32_t depth_clear_value; 12968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt switch (mt->format) { 130eeed49f5f290793870c60b5b635b977a732a1eb4Mark Mueller case MESA_FORMAT_Z32_FLOAT_S8X24_UINT: 131a487ef87fe4aa8c4b8e5c0d888bfb18727c8e570Kenneth Graunke case MESA_FORMAT_Z24_UNORM_S8_UINT: 13268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* From the Sandy Bridge PRM, volume 2 part 1, page 314: 13368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 13468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * "[DevSNB+]: Several cases exist where Depth Buffer Clear cannot be 13568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * enabled (the legacy method of clearing must be performed): 13668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 13768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * - If the depth buffer format is D32_FLOAT_S8X24_UINT or 13868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * D24_UNORM_S8_UINT. 13968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 14068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 14168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 14250a01d2acafb2a937e62b24258e2e777c0cd1489Mark Mueller case MESA_FORMAT_Z_FLOAT32: 14368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt depth_clear_value = float_as_int(ctx->Depth.Clear); 14468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt break; 14568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 14650a01d2acafb2a937e62b24258e2e777c0cd1489Mark Mueller case MESA_FORMAT_Z_UNORM16: 14768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* From the Sandy Bridge PRM, volume 2 part 1, page 314: 14868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 14968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * "[DevSNB+]: Several cases exist where Depth Buffer Clear cannot be 15068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * enabled (the legacy method of clearing must be performed): 15168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 15268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * - DevSNB{W/A}]: When depth buffer format is D16_UNORM and the 15368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * width of the map (LOD0) is not multiple of 16, fast clear 15468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * optimization must be disabled. 15568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 156b18871c863fabec3ed383881d2cdd0298b157b06Kenneth Graunke if (brw->gen == 6 && 157b18871c863fabec3ed383881d2cdd0298b157b06Kenneth Graunke (minify(mt->physical_width0, 158b18871c863fabec3ed383881d2cdd0298b157b06Kenneth Graunke depth_irb->mt_level - mt->first_level) % 16) != 0) 15968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 16068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* FALLTHROUGH */ 16168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 16268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt default: 1638e0a0e4d30be142235c2b2439fe82935b8c67888Kenneth Graunke if (brw->gen >= 8) 1648e0a0e4d30be142235c2b2439fe82935b8c67888Kenneth Graunke depth_clear_value = float_as_int(ctx->Depth.Clear); 1658e0a0e4d30be142235c2b2439fe82935b8c67888Kenneth Graunke else 1668e0a0e4d30be142235c2b2439fe82935b8c67888Kenneth Graunke depth_clear_value = fb->_DepthMax * ctx->Depth.Clear; 16768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt break; 16868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 16968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 17068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* If we're clearing to a new clear value, then we need to resolve any clear 17168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * flags out of the HiZ buffer into the real depth buffer. 17268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 17368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (mt->depth_clear_value != depth_clear_value) { 174ca437579b3974b91a5298707c459908a628c1098Kenneth Graunke intel_miptree_all_slices_resolve_depth(brw, mt); 17568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt mt->depth_clear_value = depth_clear_value; 17668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 17768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 1787d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen if (brw->gen == 6) { 1797d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen /* From the Sandy Bridge PRM, volume 2 part 1, page 313: 1807d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * 1817d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * "If other rendering operations have preceded this clear, a 1827d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * PIPE_CONTROL with write cache flush enabled and Z-inhibit disabled 1837d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * must be issued before the rectangle primitive used for the depth 1847d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * buffer clear operation. 1857d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen */ 1867d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen brw_emit_pipe_control_flush(brw, 1877d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen PIPE_CONTROL_RENDER_TARGET_FLUSH | 1887d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen PIPE_CONTROL_DEPTH_CACHE_FLUSH | 1897d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen PIPE_CONTROL_CS_STALL); 1907d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen } else if (brw->gen >= 7) { 1917d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen /* 1927d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * From the Ivybridge PRM, volume 2, "Depth Buffer Clear": 1937d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * 1947d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * If other rendering operations have preceded this clear, a 1957d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * PIPE_CONTROL with depth cache flush enabled, Depth Stall bit 1967d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * enabled must be issued before the rectangle primitive used for the 1977d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * depth buffer clear operation. 1987d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * 1997d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * Same applies for Gen8 and Gen9. 2007d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * 2017d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * In addition, from the Ivybridge PRM, volume 2, 1.10.4.1 PIPE_CONTROL, 2027d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * Depth Cache Flush Enable: 2037d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * 2047d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * This bit must not be set when Depth Stall Enable bit is set in 2057d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * this packet. 2067d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * 2077d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * This is confirmed to hold for real, HSW gets immediate gpu hangs. 2087d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * 2097d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * Therefore issue two pipe control flushes, one for cache flush and 2107d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen * another for depth stall. 2117d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen */ 2127d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen brw_emit_pipe_control_flush(brw, 2137d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen PIPE_CONTROL_DEPTH_CACHE_FLUSH | 2147d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen PIPE_CONTROL_CS_STALL); 2157d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen 2167d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen brw_emit_pipe_control_flush(brw, PIPE_CONTROL_DEPTH_STALL); 2177d5a98f106b0695aca305bac8eb8833324bb8fe3Topi Pohjolainen } 21868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 219532b1fecd93fd30d3b1b101b55fd2c6e074088adPaul Berry if (fb->MaxNumLayers > 0) { 220058f353a159a6e34adb6d45462a18de86685a046Chris Forbes for (unsigned layer = 0; layer < depth_irb->layer_count; layer++) { 221058f353a159a6e34adb6d45462a18de86685a046Chris Forbes intel_hiz_exec(brw, mt, depth_irb->mt_level, 222058f353a159a6e34adb6d45462a18de86685a046Chris Forbes depth_irb->mt_layer + layer, 22387a1cb697937fa01405b0a57470ee69b9cf19998Jason Ekstrand BLORP_HIZ_OP_DEPTH_CLEAR); 22408315233509f1fa7dc1e877aed2a8517296cf86ePaul Berry } 22508315233509f1fa7dc1e877aed2a8517296cf86ePaul Berry } else { 22608315233509f1fa7dc1e877aed2a8517296cf86ePaul Berry intel_hiz_exec(brw, mt, depth_irb->mt_level, depth_irb->mt_layer, 22787a1cb697937fa01405b0a57470ee69b9cf19998Jason Ekstrand BLORP_HIZ_OP_DEPTH_CLEAR); 22808315233509f1fa7dc1e877aed2a8517296cf86ePaul Berry } 22968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 23053631be4ebaa4fb13a7f129727c1cdd32fcc6f3dKenneth Graunke if (brw->gen == 6) { 23168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* From the Sandy Bridge PRM, volume 2 part 1, page 314: 23268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 23368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * "DevSNB, DevSNB-B{W/A}]: Depth buffer clear pass must be followed 23468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * by a PIPE_CONTROL command with DEPTH_STALL bit set and Then 23568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * followed by Depth FLUSH' 23668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 2378621961d4334bbfd51cb9e1934c6dcbc741699a9Topi Pohjolainen brw_emit_pipe_control_flush(brw, 2388621961d4334bbfd51cb9e1934c6dcbc741699a9Topi Pohjolainen PIPE_CONTROL_DEPTH_STALL); 2398621961d4334bbfd51cb9e1934c6dcbc741699a9Topi Pohjolainen 2408621961d4334bbfd51cb9e1934c6dcbc741699a9Topi Pohjolainen brw_emit_pipe_control_flush(brw, 2418621961d4334bbfd51cb9e1934c6dcbc741699a9Topi Pohjolainen PIPE_CONTROL_DEPTH_CACHE_FLUSH | 2428621961d4334bbfd51cb9e1934c6dcbc741699a9Topi Pohjolainen PIPE_CONTROL_CS_STALL); 24368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 24468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 2455133bd6585552a5708b294180fa9a561bf7564a6Paul Berry /* Now, the HiZ buffer contains data that needs to be resolved to the depth 2465133bd6585552a5708b294180fa9a561bf7564a6Paul Berry * buffer. 24768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 2487b36137642f8946bbc85b45124fefda38ca5332eJordan Justen intel_renderbuffer_att_set_needs_depth_resolve(depth_att); 24968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 25068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return true; 25168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt} 25268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 25368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt/** 2544451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * Called by ctx->Driver.Clear. 2554451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul */ 2564451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paulstatic void 2577da9795070b1af746ab85692d4b65dbe8c4f2d76Eric Anholtbrw_clear(struct gl_context *ctx, GLbitfield mask) 2584451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul{ 259c5d5827951fb321a58cc781b4e386551035ebf1aPaul Berry struct brw_context *brw = brw_context(ctx); 2600af56c9d53a454477645f4537b8086120a638d3ePaul Berry struct gl_framebuffer *fb = ctx->DrawBuffer; 26149c24d8a241ead2f0906d8e9523ab3aba0d8a73dJordan Justen bool partial_clear = ctx->Scissor.EnableFlags && !noop_scissor(fb); 2624451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 2631df72402d99145425531297eef6772b88ce5225dEric Anholt if (!_mesa_check_conditional_render(ctx)) 2641df72402d99145425531297eef6772b88ce5225dEric Anholt return; 2651df72402d99145425531297eef6772b88ce5225dEric Anholt 2663105f3aa88e4b59eed3c7f175af77fbdb4af5924Brian Paul if (mask & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_FRONT_RIGHT)) { 2679147b4049658fe2401c19e03d20220aeea0fafc6Kenneth Graunke brw->front_buffer_dirty = true; 2683105f3aa88e4b59eed3c7f175af77fbdb4af5924Brian Paul } 26938d3c156dc64679e5602816070a0bac4f1f39302Brian Paul 270ca437579b3974b91a5298707c459908a628c1098Kenneth Graunke intel_prepare_render(brw); 2710af56c9d53a454477645f4537b8086120a638d3ePaul Berry brw_workaround_depthstencil_alignment(brw, partial_clear ? 0 : mask); 27268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 27368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (mask & BUFFER_BIT_DEPTH) { 27468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (brw_fast_clear_depth(ctx)) { 27568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt DBG("fast clear: depth\n"); 27668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt mask &= ~BUFFER_BIT_DEPTH; 27768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 27868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 27968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 2807bd87c1e6e168b048cdf2318af8848d07caa6706Jordan Justen if (mask & BUFFER_BIT_STENCIL) { 2817bd87c1e6e168b048cdf2318af8848d07caa6706Jordan Justen struct intel_renderbuffer *stencil_irb = 2827bd87c1e6e168b048cdf2318af8848d07caa6706Jordan Justen intel_get_renderbuffer(fb, BUFFER_STENCIL); 2837bd87c1e6e168b048cdf2318af8848d07caa6706Jordan Justen struct intel_mipmap_tree *mt = stencil_irb->mt; 2847bd87c1e6e168b048cdf2318af8848d07caa6706Jordan Justen if (mt && mt->stencil_mt) 2857bd87c1e6e168b048cdf2318af8848d07caa6706Jordan Justen mt->stencil_mt->r8stencil_needs_update = true; 2867bd87c1e6e168b048cdf2318af8848d07caa6706Jordan Justen } 2877bd87c1e6e168b048cdf2318af8848d07caa6706Jordan Justen 288c7cf17ae758eff27dee8e06cc315841b34d3fe0aTopi Pohjolainen /* BLORP is currently only supported on Gen6+. */ 289c7cf17ae758eff27dee8e06cc315841b34d3fe0aTopi Pohjolainen if (brw->gen >= 6 && (mask & BUFFER_BITS_COLOR)) { 290c7cf17ae758eff27dee8e06cc315841b34d3fe0aTopi Pohjolainen const bool encode_srgb = ctx->Color.sRGBEnabled; 291c7cf17ae758eff27dee8e06cc315841b34d3fe0aTopi Pohjolainen if (brw_blorp_clear_color(brw, fb, mask, partial_clear, encode_srgb)) { 292c7cf17ae758eff27dee8e06cc315841b34d3fe0aTopi Pohjolainen debug_mask("blorp color", mask & BUFFER_BITS_COLOR); 293c7cf17ae758eff27dee8e06cc315841b34d3fe0aTopi Pohjolainen mask &= ~BUFFER_BITS_COLOR; 294c7cf17ae758eff27dee8e06cc315841b34d3fe0aTopi Pohjolainen } 295c7cf17ae758eff27dee8e06cc315841b34d3fe0aTopi Pohjolainen } 296c7cf17ae758eff27dee8e06cc315841b34d3fe0aTopi Pohjolainen 2973e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt GLbitfield tri_mask = mask & (BUFFER_BITS_COLOR | 2983e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt BUFFER_BIT_STENCIL | 2993e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt BUFFER_BIT_DEPTH); 3004451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 3014451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul if (tri_mask) { 302bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt debug_mask("tri", tri_mask); 3033e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt mask &= ~tri_mask; 30494f22fbe787214580a1a13a774114d2650c166cbTapani Pälli 30594f22fbe787214580a1a13a774114d2650c166cbTapani Pälli if (ctx->API == API_OPENGLES) { 3068c9a54e7bcfc80295ad77097910d35958dfd3644Kenneth Graunke _mesa_meta_Clear(&brw->ctx, tri_mask); 30794f22fbe787214580a1a13a774114d2650c166cbTapani Pälli } else { 3088c9a54e7bcfc80295ad77097910d35958dfd3644Kenneth Graunke _mesa_meta_glsl_Clear(&brw->ctx, tri_mask); 30994f22fbe787214580a1a13a774114d2650c166cbTapani Pälli } 3104451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul } 3113e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt 3123e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt /* Any strange buffers get passed off to swrast */ 3133e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt if (mask) { 3143e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt debug_mask("swrast", mask); 3153e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt _swrast_Clear(ctx, mask); 3163e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt } 3174451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul} 3184451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 3194451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 3204451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paulvoid 3214451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian PaulintelInitClearFuncs(struct dd_function_table *functions) 3224451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul{ 3237da9795070b1af746ab85692d4b65dbe8c4f2d76Eric Anholt functions->Clear = brw_clear; 3244451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul} 325