2 Copyright (C) Intel Corp. 2006. All Rights Reserved.
3 Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
4 develop this 3D driver.
6 Permission is hereby granted, free of charge, to any person obtaining
7 a copy of this software and associated documentation files (the
8 "Software"), to deal in the Software without restriction, including
9 without limitation the rights to use, copy, modify, merge, publish,
10 distribute, sublicense, and/or sell copies of the Software, and to
11 permit persons to whom the Software is furnished to do so, subject to
12 the following conditions:
14 The above copyright notice and this permission notice (including the
15 next paragraph) shall be included in all copies or substantial
16 portions of the Software.
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **********************************************************************/
29 * Keith Whitwell <keith@tungstengraphics.com>
33 #include "main/imports.h"
34 #include "main/api_noop.h"
35 #include "main/macros.h"
36 #include "main/simple_list.h"
37 #include "brw_context.h"
38 #include "brw_defines.h"
40 #include "brw_state.h"
41 #include "intel_span.h"
42 #include "tnl/t_pipeline.h"
44 /***************************************
45 * Mesa's Driver Functions
46 ***************************************/
48 static void brwInitDriverFunctions( struct dd_function_table *functions )
50 intelInitDriverFunctions( functions );
52 brwInitFragProgFuncs( functions );
53 brw_init_queryobj_functions(functions);
56 GLboolean brwCreateContext( int api,
57 const struct gl_config *mesaVis,
58 __DRIcontext *driContextPriv,
59 void *sharedContextPrivate)
61 struct dd_function_table functions;
62 struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
63 struct intel_context *intel = &brw->intel;
64 struct gl_context *ctx = &intel->ctx;
68 printf("%s: failed to alloc context\n", __FUNCTION__);
73 brwInitDriverFunctions( &functions );
75 if (!intelInitContext( intel, api, mesaVis, driContextPriv,
76 sharedContextPrivate, &functions )) {
77 printf("%s: failed to init intel context\n", __FUNCTION__);
82 /* Initialize swrast, tnl driver tables: */
83 intelInitSpanFuncs(ctx);
85 TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
87 ctx->Const.MaxDrawBuffers = BRW_MAX_DRAW_BUFFERS;
88 ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
89 ctx->Const.MaxTextureCoordUnits = 8; /* Mesa limit */
90 ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureCoordUnits,
91 ctx->Const.MaxTextureImageUnits);
92 ctx->Const.MaxVertexTextureImageUnits = 0; /* no vertex shader textures */
93 ctx->Const.MaxCombinedTextureImageUnits =
94 ctx->Const.MaxVertexTextureImageUnits +
95 ctx->Const.MaxTextureImageUnits;
97 ctx->Const.MaxTextureLevels = 14; /* 8192 */
98 if (ctx->Const.MaxTextureLevels > MAX_TEXTURE_LEVELS)
99 ctx->Const.MaxTextureLevels = MAX_TEXTURE_LEVELS;
100 ctx->Const.Max3DTextureLevels = 9;
101 ctx->Const.MaxCubeTextureLevels = 12;
102 ctx->Const.MaxTextureRectSize = (1<<12);
104 ctx->Const.MaxTextureMaxAnisotropy = 16.0;
106 /* if conformance mode is set, swrast can handle any size AA point */
107 ctx->Const.MaxPointSizeAA = 255.0;
109 /* We want the GLSL compiler to emit code that uses condition codes */
110 for (i = 0; i <= MESA_SHADER_FRAGMENT; i++) {
111 ctx->ShaderCompilerOptions[i].EmitCondCodes = GL_TRUE;
112 ctx->ShaderCompilerOptions[i].EmitNVTempInitialization = GL_TRUE;
113 ctx->ShaderCompilerOptions[i].EmitNoNoise = GL_TRUE;
114 ctx->ShaderCompilerOptions[i].EmitNoMainReturn = GL_TRUE;
115 ctx->ShaderCompilerOptions[i].EmitNoIndirectInput = GL_TRUE;
116 ctx->ShaderCompilerOptions[i].EmitNoIndirectOutput = GL_TRUE;
118 ctx->ShaderCompilerOptions[i].EmitNoIndirectUniform =
119 (i == MESA_SHADER_FRAGMENT);
120 ctx->ShaderCompilerOptions[i].EmitNoIndirectTemp =
121 (i == MESA_SHADER_FRAGMENT);
124 ctx->Const.VertexProgram.MaxNativeInstructions = (16 * 1024);
125 ctx->Const.VertexProgram.MaxAluInstructions = 0;
126 ctx->Const.VertexProgram.MaxTexInstructions = 0;
127 ctx->Const.VertexProgram.MaxTexIndirections = 0;
128 ctx->Const.VertexProgram.MaxNativeAluInstructions = 0;
129 ctx->Const.VertexProgram.MaxNativeTexInstructions = 0;
130 ctx->Const.VertexProgram.MaxNativeTexIndirections = 0;
131 ctx->Const.VertexProgram.MaxNativeAttribs = 16;
132 ctx->Const.VertexProgram.MaxNativeTemps = 256;
133 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
134 ctx->Const.VertexProgram.MaxNativeParameters = 1024;
135 ctx->Const.VertexProgram.MaxEnvParams =
136 MIN2(ctx->Const.VertexProgram.MaxNativeParameters,
137 ctx->Const.VertexProgram.MaxEnvParams);
139 ctx->Const.FragmentProgram.MaxNativeInstructions = (16 * 1024);
140 ctx->Const.FragmentProgram.MaxNativeAluInstructions = (16 * 1024);
141 ctx->Const.FragmentProgram.MaxNativeTexInstructions = (16 * 1024);
142 ctx->Const.FragmentProgram.MaxNativeTexIndirections = (16 * 1024);
143 ctx->Const.FragmentProgram.MaxNativeAttribs = 12;
144 ctx->Const.FragmentProgram.MaxNativeTemps = 256;
145 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
146 ctx->Const.FragmentProgram.MaxNativeParameters = 1024;
147 ctx->Const.FragmentProgram.MaxEnvParams =
148 MIN2(ctx->Const.FragmentProgram.MaxNativeParameters,
149 ctx->Const.FragmentProgram.MaxEnvParams);
151 /* Fragment shaders use real, 32-bit twos-complement integers for all
154 ctx->Const.FragmentProgram.LowInt.RangeMin = 31;
155 ctx->Const.FragmentProgram.LowInt.RangeMax = 30;
156 ctx->Const.FragmentProgram.LowInt.Precision = 0;
157 ctx->Const.FragmentProgram.HighInt = ctx->Const.FragmentProgram.MediumInt
158 = ctx->Const.FragmentProgram.LowInt;
160 /* Gen6 converts quads to polygon in beginning of 3D pipeline,
161 but we're not sure how it's actually done for vertex order,
162 that affect provoking vertex decision. Always use last vertex
163 convention for quad primitive which works as expected for now. */
165 ctx->Const.QuadsFollowProvokingVertexConvention = GL_FALSE;
167 if (intel->is_g4x || intel->gen >= 5) {
168 brw->CMD_VF_STATISTICS = CMD_VF_STATISTICS_GM45;
169 brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_GM45;
170 brw->has_surface_tile_offset = GL_TRUE;
172 brw->has_compr4 = GL_TRUE;
173 brw->has_aa_line_parameters = GL_TRUE;
174 brw->has_pln = GL_TRUE;
176 brw->CMD_VF_STATISTICS = CMD_VF_STATISTICS_965;
177 brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_965;
180 /* WM maximum threads is number of EUs times number of threads per EU. */
181 if (intel->gen >= 7) {
182 if (IS_IVB_GT1(intel->intelScreen->deviceID)) {
183 brw->wm_max_threads = 86;
184 brw->vs_max_threads = 36;
186 brw->urb.max_vs_entries = 512;
187 brw->urb.max_gs_entries = 192;
188 } else if (IS_IVB_GT2(intel->intelScreen->deviceID)) {
189 brw->wm_max_threads = 86;
190 brw->vs_max_threads = 128;
192 brw->urb.max_vs_entries = 704;
193 brw->urb.max_gs_entries = 320;
195 assert(!"Unknown gen7 device.");
197 } else if (intel->gen == 6) {
198 if (IS_SNB_GT2(intel->intelScreen->deviceID)) {
199 /* This could possibly be 80, but is supposed to require
200 * disabling of WIZ hashing (bit 6 of GT_MODE, 0x20d0) and a
201 * GPU reset to change.
203 brw->wm_max_threads = 40;
204 brw->vs_max_threads = 60;
205 brw->urb.size = 64; /* volume 5c.5 section 5.1 */
206 brw->urb.max_vs_entries = 256; /* volume 2a (see 3DSTATE_URB) */
208 brw->wm_max_threads = 40;
209 brw->vs_max_threads = 24;
210 brw->urb.size = 32; /* volume 5c.5 section 5.1 */
211 brw->urb.max_vs_entries = 128; /* volume 2a (see 3DSTATE_URB) */
213 } else if (intel->gen == 5) {
214 brw->urb.size = 1024;
215 brw->vs_max_threads = 72;
216 brw->wm_max_threads = 12 * 6;
217 } else if (intel->is_g4x) {
219 brw->vs_max_threads = 32;
220 brw->wm_max_threads = 10 * 5;
221 } else if (intel->gen < 6) {
223 brw->vs_max_threads = 16;
224 brw->wm_max_threads = 8 * 4;
225 brw->has_negative_rhw_bug = GL_TRUE;
228 if (INTEL_DEBUG & DEBUG_SINGLE_THREAD) {
229 brw->vs_max_threads = 1;
230 brw->wm_max_threads = 1;
233 brw_init_state( brw );
235 brw->curbe.last_buf = calloc(1, 4096);
236 brw->curbe.next_buf = calloc(1, 4096);
238 brw->state.dirty.mesa = ~0;
239 brw->state.dirty.brw = ~0;
241 brw->emit_state_always = 0;
243 intel->batch.need_workaround_flush = true;
245 ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
246 ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
248 brw_draw_init( brw );