11ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt/* 21ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * Copyright © 2009 Intel Corporation 31ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * 41ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * Permission is hereby granted, free of charge, to any person obtaining a 51ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * copy of this software and associated documentation files (the "Software"), 61ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * to deal in the Software without restriction, including without limitation 71ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * the rights to use, copy, modify, merge, publish, distribute, sublicense, 81ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * and/or sell copies of the Software, and to permit persons to whom the 91ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * Software is furnished to do so, subject to the following conditions: 101ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * 111ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * The above copyright notice and this permission notice (including the next 121ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * paragraph) shall be included in all copies or substantial portions of the 131ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * Software. 141ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * 151ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 161ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 171ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 181ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 191ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 201ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 211ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * IN THE SOFTWARE. 221ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * 231ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * Authors: 241ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * Eric Anholt <eric@anholt.net> 251ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * 261ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt */ 271ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 281ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt#include "brw_context.h" 291ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt#include "brw_state.h" 301ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt#include "brw_defines.h" 311ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt#include "intel_batchbuffer.h" 324433b0302d0aa9dc61002e8bb4fd1b752b0be338Brian Paul#include "main/fbobject.h" 331ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 341ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt/* The clip VP defines the guardband region where expensive clipping is skipped 351ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt * and fragments are allowed to be generated and clipped out cheaply by the SF. 36dbe13c105faafed6823c32ed37596f530577be91Oliver McFadden * 37dbe13c105faafed6823c32ed37596f530577be91Oliver McFadden * By setting it to NDC bounds of [-1,1], we don't do GB clipping. It's 38dbe13c105faafed6823c32ed37596f530577be91Oliver McFadden * supposed to cause seams to become visible in apps due to shared edges taking 39dbe13c105faafed6823c32ed37596f530577be91Oliver McFadden * different clip/no clip paths depending on whether the rest of the prim ends 40dbe13c105faafed6823c32ed37596f530577be91Oliver McFadden * up in the guardband or not. 411ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt */ 421ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholtstatic void 43752cad8f33ad1adc8950e5c0b5c9c4aa2ad046ecEric Anholtgen6_upload_clip_vp(struct brw_context *brw) 441ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt{ 453628e123f13a480abfad8e8af9f875e3d8eeb5a6Eric Anholt struct brw_clipper_viewport *vp; 461ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 47d375df220fae47f38944c4832bcbd5f5d568884cEric Anholt vp = brw_state_batch(brw, AUB_TRACE_CLIP_VP_STATE, 48d375df220fae47f38944c4832bcbd5f5d568884cEric Anholt sizeof(*vp), 32, &brw->clip.vp_offset); 491ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 50dbe13c105faafed6823c32ed37596f530577be91Oliver McFadden vp->xmin = -1.0; 51dbe13c105faafed6823c32ed37596f530577be91Oliver McFadden vp->xmax = 1.0; 52dbe13c105faafed6823c32ed37596f530577be91Oliver McFadden vp->ymin = -1.0; 53dbe13c105faafed6823c32ed37596f530577be91Oliver McFadden vp->ymax = 1.0; 543628e123f13a480abfad8e8af9f875e3d8eeb5a6Eric Anholt 553628e123f13a480abfad8e8af9f875e3d8eeb5a6Eric Anholt brw->state.dirty.cache |= CACHE_NEW_CLIP_VP; 561ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt} 571ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 581ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholtconst struct brw_tracked_state gen6_clip_vp = { 591ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt .dirty = { 60dbe13c105faafed6823c32ed37596f530577be91Oliver McFadden .mesa = 0, 613628e123f13a480abfad8e8af9f875e3d8eeb5a6Eric Anholt .brw = BRW_NEW_BATCH, 621ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt .cache = 0, 631ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt }, 64752cad8f33ad1adc8950e5c0b5c9c4aa2ad046ecEric Anholt .emit = gen6_upload_clip_vp, 651ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt}; 661ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 671ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholtstatic void 68752cad8f33ad1adc8950e5c0b5c9c4aa2ad046ecEric Anholtgen6_upload_sf_vp(struct brw_context *brw) 691ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt{ 70f9995b30756140724f41daf963fa06167912be7fKristian Høgsberg struct gl_context *ctx = &brw->intel.ctx; 711ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt const GLfloat depth_scale = 1.0F / ctx->DrawBuffer->_DepthMaxF; 728d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt struct brw_sf_viewport *sfv; 731ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt GLfloat y_scale, y_bias; 744433b0302d0aa9dc61002e8bb4fd1b752b0be338Brian Paul const bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer); 751ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt const GLfloat *v = ctx->Viewport._WindowMap.m; 761ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 77d375df220fae47f38944c4832bcbd5f5d568884cEric Anholt sfv = brw_state_batch(brw, AUB_TRACE_SF_VP_STATE, 78d375df220fae47f38944c4832bcbd5f5d568884cEric Anholt sizeof(*sfv), 32, &brw->sf.vp_offset); 798d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt memset(sfv, 0, sizeof(*sfv)); 801ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 811ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt /* _NEW_BUFFERS */ 821ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt if (render_to_fbo) { 831ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt y_scale = 1.0; 841ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt y_bias = 0; 851ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt } else { 861ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt y_scale = -1.0; 871ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt y_bias = ctx->DrawBuffer->Height; 881ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt } 891ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 901ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt /* _NEW_VIEWPORT */ 918d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt sfv->viewport.m00 = v[MAT_SX]; 928d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt sfv->viewport.m11 = v[MAT_SY] * y_scale; 938d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt sfv->viewport.m22 = v[MAT_SZ] * depth_scale; 948d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt sfv->viewport.m30 = v[MAT_TX]; 958d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt sfv->viewport.m31 = v[MAT_TY] * y_scale + y_bias; 968d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt sfv->viewport.m32 = v[MAT_TZ] * depth_scale; 978d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt 988d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt brw->state.dirty.cache |= CACHE_NEW_SF_VP; 991ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt} 1001ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 1011ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholtconst struct brw_tracked_state gen6_sf_vp = { 1021ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt .dirty = { 1031ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt .mesa = _NEW_VIEWPORT | _NEW_BUFFERS, 1048d2047ca7e8a533e1853a2ba51cd1bd6e52ae4a3Eric Anholt .brw = BRW_NEW_BATCH, 1051ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt .cache = 0, 1061ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt }, 107752cad8f33ad1adc8950e5c0b5c9c4aa2ad046ecEric Anholt .emit = gen6_upload_sf_vp, 1081ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt}; 1091ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 1101ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholtstatic void upload_viewport_state_pointers(struct brw_context *brw) 1111ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt{ 1121ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt struct intel_context *intel = &brw->intel; 1131ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 1141ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt BEGIN_BATCH(4); 115e31defc825ee94f1d1092e277954abad7097c552Kenneth Graunke OUT_BATCH(_3DSTATE_VIEWPORT_STATE_POINTERS << 16 | (4 - 2) | 1161ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt GEN6_CC_VIEWPORT_MODIFY | 1171ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt GEN6_SF_VIEWPORT_MODIFY | 1181ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt GEN6_CLIP_VIEWPORT_MODIFY); 119a82a43e8d99e1715dd11c9c091b5ab734079b6a6Eric Anholt OUT_BATCH(brw->clip.vp_offset); 120a82a43e8d99e1715dd11c9c091b5ab734079b6a6Eric Anholt OUT_BATCH(brw->sf.vp_offset); 121a82a43e8d99e1715dd11c9c091b5ab734079b6a6Eric Anholt OUT_BATCH(brw->cc.vp_offset); 1221ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt ADVANCE_BATCH(); 1231ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt} 1241ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt 1251ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholtconst struct brw_tracked_state gen6_viewport_state = { 1261ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt .dirty = { 1271ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt .mesa = 0, 128a09c5c2e3053c48a33134cf28229105bfef52e6fEric Anholt .brw = (BRW_NEW_BATCH | 129a09c5c2e3053c48a33134cf28229105bfef52e6fEric Anholt BRW_NEW_STATE_BASE_ADDRESS), 1301ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt .cache = (CACHE_NEW_CLIP_VP | 1311ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt CACHE_NEW_SF_VP | 1321ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt CACHE_NEW_CC_VP) 1331ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt }, 1341ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt .emit = upload_viewport_state_pointers, 1351ae0cb5f286bbba10e99c8e3bc1c55d2aeb38b59Eric Anholt}; 136