1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * 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, sub license, 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 portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "i915_context.h"
29 #include "main/api_exec.h"
30 #include "main/imports.h"
31 #include "main/macros.h"
32 #include "main/version.h"
33 #include "main/vtxfmt.h"
34 #include "intel_tris.h"
35 #include "tnl/t_context.h"
36 #include "tnl/t_pipeline.h"
37 #include "tnl/t_vertex.h"
39 #include "swrast/swrast.h"
40 #include "swrast_setup/swrast_setup.h"
42 #include "../glsl/ralloc.h"
45 #include "i915_program.h"
47 #include "intel_span.h"
49 /***************************************
50 * Mesa's Driver Functions
51 ***************************************/
53 /* Override intel default.
56 i915InvalidateState(struct gl_context * ctx, GLuint new_state)
58 _swrast_InvalidateState(ctx, new_state);
59 _swsetup_InvalidateState(ctx, new_state);
60 _vbo_InvalidateState(ctx, new_state);
61 _tnl_InvalidateState(ctx, new_state);
62 _tnl_invalidate_vertex_state(ctx, new_state);
63 intel_context(ctx)->NewGLState |= new_state;
65 /* Todo: gather state values under which tracked parameters become
66 * invalidated, add callbacks for things like
67 * ProgramLocalParameters, etc.
70 struct i915_fragment_program *p =
71 (struct i915_fragment_program *) ctx->FragmentProgram._Current;
72 if (p && p->nr_params)
73 p->params_uptodate = 0;
76 if (new_state & (_NEW_STENCIL | _NEW_BUFFERS | _NEW_POLYGON))
77 i915_update_stencil(ctx);
78 if (new_state & (_NEW_LIGHT))
79 i915_update_provoking_vertex(ctx);
80 if (new_state & (_NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS))
81 i915_update_program(ctx);
82 if (new_state & (_NEW_PROGRAM | _NEW_POINT))
83 i915_update_sprite_point_enable(ctx);
88 i915InitDriverFunctions(struct dd_function_table *functions)
90 intelInitDriverFunctions(functions);
91 i915InitStateFunctions(functions);
92 i915InitFragProgFuncs(functions);
93 functions->UpdateState = i915InvalidateState;
96 /* Note: this is shared with i830. */
98 intel_init_texture_formats(struct gl_context *ctx)
100 struct intel_context *intel = intel_context(ctx);
101 struct intel_screen *intel_screen = intel->intelScreen;
103 ctx->TextureFormatSupported[MESA_FORMAT_ARGB8888] = true;
104 if (intel_screen->deviceID != PCI_CHIP_I830_M &&
105 intel_screen->deviceID != PCI_CHIP_845_G)
106 ctx->TextureFormatSupported[MESA_FORMAT_XRGB8888] = true;
108 ctx->TextureFormatSupported[MESA_FORMAT_SARGB8] = true;
109 ctx->TextureFormatSupported[MESA_FORMAT_ARGB4444] = true;
110 ctx->TextureFormatSupported[MESA_FORMAT_ARGB1555] = true;
111 ctx->TextureFormatSupported[MESA_FORMAT_RGB565] = true;
112 ctx->TextureFormatSupported[MESA_FORMAT_L8] = true;
113 ctx->TextureFormatSupported[MESA_FORMAT_A8] = true;
114 ctx->TextureFormatSupported[MESA_FORMAT_I8] = true;
115 ctx->TextureFormatSupported[MESA_FORMAT_AL88] = true;
117 /* Depth and stencil */
118 ctx->TextureFormatSupported[MESA_FORMAT_S8_Z24] = true;
119 ctx->TextureFormatSupported[MESA_FORMAT_X8_Z24] = true;
120 ctx->TextureFormatSupported[MESA_FORMAT_S8] = intel->has_separate_stencil;
123 * This was disabled in initial FBO enabling to avoid combinations
124 * of depth+stencil that wouldn't work together. We since decided
125 * that it was OK, since it's up to the app to come up with the
126 * combo that actually works, so this can probably be re-enabled.
129 ctx->TextureFormatSupported[MESA_FORMAT_Z16] = true;
130 ctx->TextureFormatSupported[MESA_FORMAT_Z24] = true;
133 /* ctx->Extensions.MESA_ycbcr_texture */
134 ctx->TextureFormatSupported[MESA_FORMAT_YCBCR] = true;
135 ctx->TextureFormatSupported[MESA_FORMAT_YCBCR_REV] = true;
137 /* GL_3DFX_texture_compression_FXT1 */
138 ctx->TextureFormatSupported[MESA_FORMAT_RGB_FXT1] = true;
139 ctx->TextureFormatSupported[MESA_FORMAT_RGBA_FXT1] = true;
141 /* GL_EXT_texture_compression_s3tc */
142 ctx->TextureFormatSupported[MESA_FORMAT_RGB_DXT1] = true;
143 ctx->TextureFormatSupported[MESA_FORMAT_RGBA_DXT1] = true;
144 ctx->TextureFormatSupported[MESA_FORMAT_RGBA_DXT3] = true;
145 ctx->TextureFormatSupported[MESA_FORMAT_RGBA_DXT5] = true;
148 extern const struct tnl_pipeline_stage *intel_pipeline[];
151 i915CreateContext(int api,
152 const struct gl_config * mesaVis,
153 __DRIcontext * driContextPriv,
154 unsigned major_version,
155 unsigned minor_version,
157 void *sharedContextPrivate)
159 struct dd_function_table functions;
160 struct i915_context *i915 = rzalloc(NULL, struct i915_context);
161 struct intel_context *intel = &i915->intel;
162 struct gl_context *ctx = &intel->ctx;
165 *error = __DRI_CTX_ERROR_NO_MEMORY;
171 i915InitDriverFunctions(&functions);
173 if (!intelInitContext(intel, api, major_version, minor_version,
174 mesaVis, driContextPriv,
175 sharedContextPrivate, &functions,
181 intel_init_texture_formats(ctx);
183 _math_matrix_ctr(&intel->ViewportMatrix);
185 /* Initialize swrast, tnl driver tables: */
186 intelInitSpanFuncs(ctx);
187 intelInitTriFuncs(ctx);
189 /* Install the customized pipeline: */
190 _tnl_destroy_pipeline(ctx);
191 _tnl_install_pipeline(ctx, intel_pipeline);
194 FALLBACK(intel, INTEL_FALLBACK_USER, 1);
196 ctx->Const.MaxTextureUnits = I915_TEX_UNITS;
197 ctx->Const.MaxTextureImageUnits = I915_TEX_UNITS;
198 ctx->Const.MaxTextureCoordUnits = I915_TEX_UNITS;
199 ctx->Const.MaxVarying = I915_TEX_UNITS;
200 ctx->Const.MaxCombinedTextureImageUnits =
201 ctx->Const.MaxVertexTextureImageUnits +
202 ctx->Const.MaxTextureImageUnits;
204 /* Advertise the full hardware capabilities. The new memory
205 * manager should cope much better with overload situations:
207 ctx->Const.MaxTextureLevels = 12;
208 ctx->Const.Max3DTextureLevels = 9;
209 ctx->Const.MaxCubeTextureLevels = 12;
210 ctx->Const.MaxTextureRectSize = (1 << 11);
211 ctx->Const.MaxTextureUnits = I915_TEX_UNITS;
213 ctx->Const.MaxTextureMaxAnisotropy = 4.0;
215 /* GL_ARB_fragment_program limits - don't think Mesa actually
216 * validates programs against these, and in any case one ARB
217 * instruction can translate to more than one HW instruction, so
218 * we'll still have to check and fallback each time.
220 ctx->Const.FragmentProgram.MaxNativeTemps = I915_MAX_TEMPORARY;
221 ctx->Const.FragmentProgram.MaxNativeAttribs = 11; /* 8 tex, 2 color, fog */
222 ctx->Const.FragmentProgram.MaxNativeParameters = I915_MAX_CONSTANT;
223 ctx->Const.FragmentProgram.MaxNativeAluInstructions = I915_MAX_ALU_INSN;
224 ctx->Const.FragmentProgram.MaxNativeTexInstructions = I915_MAX_TEX_INSN;
225 ctx->Const.FragmentProgram.MaxNativeInstructions = (I915_MAX_ALU_INSN +
227 ctx->Const.FragmentProgram.MaxNativeTexIndirections =
228 I915_MAX_TEX_INDIRECT;
229 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0; /* I don't think we have one */
230 ctx->Const.FragmentProgram.MaxEnvParams =
231 MIN2(ctx->Const.FragmentProgram.MaxNativeParameters,
232 ctx->Const.FragmentProgram.MaxEnvParams);
234 /* i915 stores all values in single-precision floats. Values aren't set
235 * for other program targets because software is used for those targets.
237 ctx->Const.FragmentProgram.MediumFloat.RangeMin = 127;
238 ctx->Const.FragmentProgram.MediumFloat.RangeMax = 127;
239 ctx->Const.FragmentProgram.MediumFloat.Precision = 23;
240 ctx->Const.FragmentProgram.LowFloat = ctx->Const.FragmentProgram.HighFloat =
241 ctx->Const.FragmentProgram.MediumFloat;
242 ctx->Const.FragmentProgram.MediumInt.RangeMin = 24;
243 ctx->Const.FragmentProgram.MediumInt.RangeMax = 24;
244 ctx->Const.FragmentProgram.MediumInt.Precision = 0;
245 ctx->Const.FragmentProgram.LowInt = ctx->Const.FragmentProgram.HighInt =
246 ctx->Const.FragmentProgram.MediumInt;
248 ctx->FragmentProgram._MaintainTexEnvProgram = true;
250 /* FINISHME: Are there other options that should be enabled for software
251 * FINISHME: vertex shaders?
253 ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitCondCodes = true;
255 struct gl_shader_compiler_options *const fs_options =
256 & ctx->ShaderCompilerOptions[MESA_SHADER_FRAGMENT];
257 fs_options->MaxIfDepth = 0;
258 fs_options->EmitNoNoise = true;
259 fs_options->EmitNoPow = true;
260 fs_options->EmitNoMainReturn = true;
261 fs_options->EmitNoIndirectInput = true;
262 fs_options->EmitNoIndirectOutput = true;
263 fs_options->EmitNoIndirectUniform = true;
264 fs_options->EmitNoIndirectTemp = true;
266 ctx->Const.MaxDrawBuffers = 1;
267 ctx->Const.QueryCounterBits.SamplesPassed = 0;
269 _tnl_init_vertices(ctx, ctx->Const.MaxArrayLockSize + 12,
270 36 * sizeof(GLfloat));
272 intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf;
276 /* Always enable pixel fog. Vertex fog using fog coord will conflict
277 * with fog code appended onto fragment program.
279 _tnl_allow_vertex_fog(ctx, 0);
280 _tnl_allow_pixel_fog(ctx, 1);
282 _mesa_compute_version(ctx);
284 _mesa_initialize_dispatch_tables(ctx);
285 _mesa_initialize_vbo_vtxfmt(ctx);