14451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul/************************************************************************** 211892ea986b5fdad345ce7c09f97e0389e546509Eric Anholt * 34451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 43e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt * Copyright 2009, 2012 Intel Corporation. 54451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * All Rights Reserved. 611892ea986b5fdad345ce7c09f97e0389e546509Eric Anholt * 74451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * Permission is hereby granted, free of charge, to any person obtaining a 84451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * copy of this software and associated documentation files (the 94451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * "Software"), to deal in the Software without restriction, including 104451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * without limitation the rights to use, copy, modify, merge, publish, 114451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * distribute, sub license, and/or sell copies of the Software, and to 124451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * permit persons to whom the Software is furnished to do so, subject to 134451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * the following conditions: 1411892ea986b5fdad345ce7c09f97e0389e546509Eric Anholt * 154451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * The above copyright notice and this permission notice (including the 164451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * next paragraph) shall be included in all copies or substantial portions 174451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * of the Software. 1811892ea986b5fdad345ce7c09f97e0389e546509Eric Anholt * 194451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 204451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 214451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 224451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 234451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 244451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 254451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 2611892ea986b5fdad345ce7c09f97e0389e546509Eric Anholt * 274451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul **************************************************************************/ 284451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 29c96bac0950eda6e707455b0c1ee29c1d87daf727Eric Anholt#include "main/glheader.h" 30c96bac0950eda6e707455b0c1ee29c1d87daf727Eric Anholt#include "main/mtypes.h" 311df72402d99145425531297eef6772b88ce5225dEric Anholt#include "main/condrender.h" 32c96bac0950eda6e707455b0c1ee29c1d87daf727Eric Anholt#include "swrast/swrast.h" 3350d8b295f6c950da3b8783ff6e1803bdfbb5c7ccBrian Paul#include "drivers/common/meta.h" 34c96bac0950eda6e707455b0c1ee29c1d87daf727Eric Anholt 3568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt#include "intel_batchbuffer.h" 364451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul#include "intel_context.h" 374451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul#include "intel_blit.h" 38c96bac0950eda6e707455b0c1ee29c1d87daf727Eric Anholt#include "intel_clear.h" 394451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul#include "intel_fbo.h" 4068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt#include "intel_mipmap_tree.h" 4113624848401679f7ee904aa731d520792a5e523eEric Anholt#include "intel_regions.h" 424451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 434451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul#define FILE_DEBUG_FLAG DEBUG_BLIT 444451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 454451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paulstatic const char *buffer_names[] = { 464451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_FRONT_LEFT] = "front", 474451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_BACK_LEFT] = "back", 484451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_FRONT_RIGHT] = "front right", 494451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_BACK_RIGHT] = "back right", 504451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_DEPTH] = "depth", 514451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_STENCIL] = "stencil", 524451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_ACCUM] = "accum", 53555f0a88182e2b1af809b2d97abdac02814a2f28Brian Paul [BUFFER_AUX0] = "aux0", 544451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR0] = "color0", 554451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR1] = "color1", 564451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR2] = "color2", 574451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR3] = "color3", 584451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR4] = "color4", 594451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR5] = "color5", 604451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR6] = "color6", 614451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul [BUFFER_COLOR7] = "color7", 624451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul}; 634451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 64bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholtstatic void 65bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholtdebug_mask(const char *name, GLbitfield mask) 66bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt{ 67bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt GLuint i; 68bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt 69bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt if (unlikely(INTEL_DEBUG & DEBUG_BLIT)) { 70bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt DBG("%s clear:", name); 71bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt for (i = 0; i < BUFFER_COUNT; i++) { 72bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt if (mask & (1 << i)) 73bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt DBG(" %s", buffer_names[i]); 74bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt } 75bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt DBG("\n"); 76bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt } 77bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt} 78bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt 794451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul/** 8068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * Implements fast depth clears on gen6+. 8168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 8268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * Fast clears basically work by setting a flag in each of the subspans 8368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * represented in the HiZ buffer that says "When you need the depth values for 8468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * this subspan, it's the hardware's current clear value." Then later rendering 8568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * can just use the static clear value instead of referencing memory. 8668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 8768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * The tricky part of the implementation is that you have to have the clear 8868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * value that was used on the depth buffer in place for all further rendering, 8968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * at least until a resolve to the real depth buffer happens. 9068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 9168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholtstatic bool 9268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholtbrw_fast_clear_depth(struct gl_context *ctx) 9368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt{ 9468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt struct intel_context *intel = intel_context(ctx); 9568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt struct gl_framebuffer *fb = ctx->DrawBuffer; 9668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt struct intel_renderbuffer *depth_irb = 9768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt intel_get_renderbuffer(fb, BUFFER_DEPTH); 9868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt struct intel_mipmap_tree *mt = depth_irb->mt; 9968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 10068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (intel->gen < 6) 10168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 10268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 10368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (!mt->hiz_mt) 10468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 10568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 10668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* We only handle full buffer clears -- otherwise you'd have to track whether 10768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * a previous clear had happened at a different clear value and resolve it 10868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * first. 10968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 110b4da272a6ea58a7c81c71477d65d82651555709aEric Anholt if (ctx->Scissor.Enabled) { 111b4da272a6ea58a7c81c71477d65d82651555709aEric Anholt perf_debug("Failed to fast clear depth due to scissor being enabled. " 112b4da272a6ea58a7c81c71477d65d82651555709aEric Anholt "Possible 5%% performance win if avoided.\n"); 11368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 114b4da272a6ea58a7c81c71477d65d82651555709aEric Anholt } 11568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 11668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* The rendered area has to be 8x4 samples, not resolved pixels, so we look 11768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * at the miptree slice dimensions instead of renderbuffer size. 11868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 11968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (mt->level[depth_irb->mt_level].width % 8 != 0 || 12068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt mt->level[depth_irb->mt_level].height % 4 != 0) { 121b4da272a6ea58a7c81c71477d65d82651555709aEric Anholt perf_debug("Failed to fast clear depth due to width/height %d,%d not " 122b4da272a6ea58a7c81c71477d65d82651555709aEric Anholt "being aligned to 8,4. Possible 5%% performance win if " 123b4da272a6ea58a7c81c71477d65d82651555709aEric Anholt "avoided\n", 124b4da272a6ea58a7c81c71477d65d82651555709aEric Anholt mt->level[depth_irb->mt_level].width, 125b4da272a6ea58a7c81c71477d65d82651555709aEric Anholt mt->level[depth_irb->mt_level].height); 12668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 12768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 12868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 12968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt uint32_t depth_clear_value; 13068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt switch (mt->format) { 13168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt case MESA_FORMAT_Z32_FLOAT_X24S8: 13268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt case MESA_FORMAT_S8_Z24: 13368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* From the Sandy Bridge PRM, volume 2 part 1, page 314: 13468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 13568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * "[DevSNB+]: Several cases exist where Depth Buffer Clear cannot be 13668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * enabled (the legacy method of clearing must be performed): 13768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 13868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * - If the depth buffer format is D32_FLOAT_S8X24_UINT or 13968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * D24_UNORM_S8_UINT. 14068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 14168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 14268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 14368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt case MESA_FORMAT_Z32_FLOAT: 14468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt depth_clear_value = float_as_int(ctx->Depth.Clear); 14568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt break; 14668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 14768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt case MESA_FORMAT_Z16: 14868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* From the Sandy Bridge PRM, volume 2 part 1, page 314: 14968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 15068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * "[DevSNB+]: Several cases exist where Depth Buffer Clear cannot be 15168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * enabled (the legacy method of clearing must be performed): 15268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 15368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * - DevSNB{W/A}]: When depth buffer format is D16_UNORM and the 15468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * width of the map (LOD0) is not multiple of 16, fast clear 15568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * optimization must be disabled. 15668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 15768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (intel->gen == 6 && (mt->level[depth_irb->mt_level].width % 16) != 0) 15868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return false; 15968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* FALLTHROUGH */ 16068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 16168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt default: 16268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt depth_clear_value = fb->_DepthMax * ctx->Depth.Clear; 16368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt break; 16468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 16568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 16668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* If we're clearing to a new clear value, then we need to resolve any clear 16768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * flags out of the HiZ buffer into the real depth buffer. 16868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 16968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (mt->depth_clear_value != depth_clear_value) { 17068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt intel_miptree_all_slices_resolve_depth(intel, mt); 17168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt mt->depth_clear_value = depth_clear_value; 17268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 17368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 17468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* From the Sandy Bridge PRM, volume 2 part 1, page 313: 17568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 17668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * "If other rendering operations have preceded this clear, a 17768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * PIPE_CONTROL with write cache flush enabled and Z-inhibit disabled 17868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * must be issued before the rectangle primitive used for the depth 17968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * buffer clear operation. 18068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 18168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt intel_batchbuffer_emit_mi_flush(intel); 18268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 18368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt intel_hiz_exec(intel, mt, depth_irb->mt_level, depth_irb->mt_layer, 18468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt GEN6_HIZ_OP_DEPTH_CLEAR); 18568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 18668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (intel->gen == 6) { 18768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt /* From the Sandy Bridge PRM, volume 2 part 1, page 314: 18868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * 18968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * "DevSNB, DevSNB-B{W/A}]: Depth buffer clear pass must be followed 19068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * by a PIPE_CONTROL command with DEPTH_STALL bit set and Then 19168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt * followed by Depth FLUSH' 19268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 19368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt intel_batchbuffer_emit_mi_flush(intel); 19468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 19568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 1965133bd6585552a5708b294180fa9a561bf7564a6Paul Berry /* Now, the HiZ buffer contains data that needs to be resolved to the depth 1975133bd6585552a5708b294180fa9a561bf7564a6Paul Berry * buffer. 19868216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt */ 19968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt intel_renderbuffer_set_needs_depth_resolve(depth_irb); 20068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 20168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt return true; 20268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt} 20368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 20468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt/** 2054451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul * Called by ctx->Driver.Clear. 2064451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul */ 2074451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paulstatic void 2087da9795070b1af746ab85692d4b65dbe8c4f2d76Eric Anholtbrw_clear(struct gl_context *ctx, GLbitfield mask) 2094451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul{ 210f6f0e117a45a64464e49290ebc9f75b9a976070aDave Airlie struct intel_context *intel = intel_context(ctx); 2114451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 2121df72402d99145425531297eef6772b88ce5225dEric Anholt if (!_mesa_check_conditional_render(ctx)) 2131df72402d99145425531297eef6772b88ce5225dEric Anholt return; 2141df72402d99145425531297eef6772b88ce5225dEric Anholt 2153105f3aa88e4b59eed3c7f175af77fbdb4af5924Brian Paul if (mask & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_FRONT_RIGHT)) { 2162e5a1a254ed81b1d3efa6064f48183eefac784d0Kenneth Graunke intel->front_buffer_dirty = true; 2173105f3aa88e4b59eed3c7f175af77fbdb4af5924Brian Paul } 21838d3c156dc64679e5602816070a0bac4f1f39302Brian Paul 21968216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt intel_prepare_render(intel); 22068216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 22168216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (mask & BUFFER_BIT_DEPTH) { 22268216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt if (brw_fast_clear_depth(ctx)) { 22368216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt DBG("fast clear: depth\n"); 22468216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt mask &= ~BUFFER_BIT_DEPTH; 22568216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 22668216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt } 22768216f35814ab8d292f37b8c0fa0a5f181b7f20dEric Anholt 2283e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt GLbitfield tri_mask = mask & (BUFFER_BITS_COLOR | 2293e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt BUFFER_BIT_STENCIL | 2303e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt BUFFER_BIT_DEPTH); 2314451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 2324451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul if (tri_mask) { 233bb1540835056cdea5db6f55b19c0c87358f14cd1Eric Anholt debug_mask("tri", tri_mask); 2343e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt mask &= ~tri_mask; 23594f22fbe787214580a1a13a774114d2650c166cbTapani Pälli 23694f22fbe787214580a1a13a774114d2650c166cbTapani Pälli if (ctx->API == API_OPENGLES) { 23794f22fbe787214580a1a13a774114d2650c166cbTapani Pälli _mesa_meta_Clear(&intel->ctx, tri_mask); 23894f22fbe787214580a1a13a774114d2650c166cbTapani Pälli } else { 23994f22fbe787214580a1a13a774114d2650c166cbTapani Pälli _mesa_meta_glsl_Clear(&intel->ctx, tri_mask); 24094f22fbe787214580a1a13a774114d2650c166cbTapani Pälli } 2414451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul } 2423e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt 2433e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt /* Any strange buffers get passed off to swrast */ 2443e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt if (mask) { 2453e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt debug_mask("swrast", mask); 2463e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt _swrast_Clear(ctx, mask); 2473e1656567c3d2abb91f8169806d6083e80c0a673Eric Anholt } 2484451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul} 2494451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 2504451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul 2514451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paulvoid 2524451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian PaulintelInitClearFuncs(struct dd_function_table *functions) 2534451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul{ 2547da9795070b1af746ab85692d4b65dbe8c4f2d76Eric Anholt functions->Clear = brw_clear; 2554451eb2e7533a41f67ed21d05a8d9ab5efec77e9Brian Paul} 256