1 /**************************************************************************
3 * Copyright 2003 VMware, Inc.
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 VMWARE 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/framebuffer.h"
31 #include "main/imports.h"
32 #include "main/macros.h"
33 #include "main/version.h"
34 #include "main/vtxfmt.h"
35 #include "intel_chipset.h"
36 #include "intel_tris.h"
37 #include "tnl/t_context.h"
38 #include "tnl/t_pipeline.h"
39 #include "tnl/t_vertex.h"
41 #include "swrast/swrast.h"
42 #include "swrast_setup/swrast_setup.h"
44 #include "util/ralloc.h"
47 #include "i915_program.h"
49 /***************************************
50 * Mesa's Driver Functions
51 ***************************************/
53 /* Override intel default.
56 i915InvalidateState(struct gl_context
* ctx
)
58 GLuint new_state
= ctx
->NewState
;
60 _swrast_InvalidateState(ctx
, new_state
);
61 _swsetup_InvalidateState(ctx
, new_state
);
62 _tnl_InvalidateState(ctx
, new_state
);
63 _tnl_invalidate_vertex_state(ctx
, new_state
);
64 intel_context(ctx
)->NewGLState
|= new_state
;
66 if (new_state
& (_NEW_SCISSOR
| _NEW_BUFFERS
| _NEW_VIEWPORT
))
67 _mesa_update_draw_buffer_bounds(ctx
, ctx
->DrawBuffer
);
69 /* Todo: gather state values under which tracked parameters become
70 * invalidated, add callbacks for things like
71 * ProgramLocalParameters, etc.
74 struct i915_fragment_program
*p
=
75 (struct i915_fragment_program
*) ctx
->FragmentProgram
._Current
;
76 if (p
&& p
->nr_params
)
77 p
->params_uptodate
= 0;
80 if (new_state
& (_NEW_STENCIL
| _NEW_BUFFERS
| _NEW_POLYGON
))
81 i915_update_stencil(ctx
);
82 if (new_state
& (_NEW_LIGHT
))
83 i915_update_provoking_vertex(ctx
);
84 if (new_state
& (_NEW_PROGRAM
| _NEW_PROGRAM_CONSTANTS
))
85 i915_update_program(ctx
);
86 if (new_state
& (_NEW_PROGRAM
| _NEW_POINT
))
87 i915_update_sprite_point_enable(ctx
);
92 i915InitDriverFunctions(struct dd_function_table
*functions
)
94 intelInitDriverFunctions(functions
);
95 i915InitStateFunctions(functions
);
96 i915InitFragProgFuncs(functions
);
97 functions
->UpdateState
= i915InvalidateState
;
100 /* Note: this is shared with i830. */
102 intel_init_texture_formats(struct gl_context
*ctx
)
104 struct intel_context
*intel
= intel_context(ctx
);
105 struct intel_screen
*intel_screen
= intel
->intelScreen
;
107 ctx
->TextureFormatSupported
[MESA_FORMAT_B8G8R8A8_UNORM
] = true;
108 if (intel_screen
->deviceID
!= PCI_CHIP_I830_M
&&
109 intel_screen
->deviceID
!= PCI_CHIP_845_G
)
110 ctx
->TextureFormatSupported
[MESA_FORMAT_B8G8R8X8_UNORM
] = true;
112 ctx
->TextureFormatSupported
[MESA_FORMAT_B8G8R8A8_SRGB
] = true;
113 ctx
->TextureFormatSupported
[MESA_FORMAT_B4G4R4A4_UNORM
] = true;
114 ctx
->TextureFormatSupported
[MESA_FORMAT_B5G5R5A1_UNORM
] = true;
115 ctx
->TextureFormatSupported
[MESA_FORMAT_B5G6R5_UNORM
] = true;
116 ctx
->TextureFormatSupported
[MESA_FORMAT_L_UNORM8
] = true;
118 ctx
->TextureFormatSupported
[MESA_FORMAT_A_UNORM8
] = true;
119 ctx
->TextureFormatSupported
[MESA_FORMAT_I_UNORM8
] = true;
120 ctx
->TextureFormatSupported
[MESA_FORMAT_L8A8_UNORM
] = true;
122 /* Depth and stencil */
123 if (intel
->gen
== 3) {
124 ctx
->TextureFormatSupported
[MESA_FORMAT_Z24_UNORM_S8_UINT
] = true;
125 ctx
->TextureFormatSupported
[MESA_FORMAT_Z24_UNORM_X8_UINT
] = true;
128 * This was disabled in initial FBO enabling to avoid combinations
129 * of depth+stencil that wouldn't work together. We since decided
130 * that it was OK, since it's up to the app to come up with the
131 * combo that actually works, so this can probably be re-enabled.
134 ctx->TextureFormatSupported[MESA_FORMAT_Z_UNORM16] = true;
135 ctx->TextureFormatSupported[MESA_FORMAT_Z24] = true;
139 /* ctx->Extensions.MESA_ycbcr_texture */
140 ctx
->TextureFormatSupported
[MESA_FORMAT_YCBCR
] = true;
141 ctx
->TextureFormatSupported
[MESA_FORMAT_YCBCR_REV
] = true;
143 /* GL_3DFX_texture_compression_FXT1 */
144 ctx
->TextureFormatSupported
[MESA_FORMAT_RGB_FXT1
] = true;
145 ctx
->TextureFormatSupported
[MESA_FORMAT_RGBA_FXT1
] = true;
147 /* GL_EXT_texture_compression_s3tc */
148 ctx
->TextureFormatSupported
[MESA_FORMAT_RGB_DXT1
] = true;
149 ctx
->TextureFormatSupported
[MESA_FORMAT_RGBA_DXT1
] = true;
150 ctx
->TextureFormatSupported
[MESA_FORMAT_RGBA_DXT3
] = true;
151 ctx
->TextureFormatSupported
[MESA_FORMAT_RGBA_DXT5
] = true;
154 extern const struct tnl_pipeline_stage
*intel_pipeline
[];
157 i915CreateContext(int api
,
158 const struct gl_config
* mesaVis
,
159 __DRIcontext
* driContextPriv
,
160 unsigned major_version
,
161 unsigned minor_version
,
164 void *sharedContextPrivate
)
166 struct dd_function_table functions
;
167 struct i915_context
*i915
= rzalloc(NULL
, struct i915_context
);
168 struct intel_context
*intel
= &i915
->intel
;
169 struct gl_context
*ctx
= &intel
->ctx
;
172 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
178 i915InitDriverFunctions(&functions
);
180 if (!intelInitContext(intel
, api
, major_version
, minor_version
, flags
,
181 mesaVis
, driContextPriv
,
182 sharedContextPrivate
, &functions
,
188 intel_init_texture_formats(ctx
);
190 _math_matrix_ctr(&intel
->ViewportMatrix
);
192 /* Initialize swrast, tnl driver tables: */
193 intelInitTriFuncs(ctx
);
195 /* Install the customized pipeline: */
196 _tnl_destroy_pipeline(ctx
);
197 _tnl_install_pipeline(ctx
, intel_pipeline
);
200 FALLBACK(intel
, INTEL_FALLBACK_USER
, 1);
202 ctx
->Const
.MaxTextureUnits
= I915_TEX_UNITS
;
203 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
= I915_TEX_UNITS
;
204 ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxTextureImageUnits
= I915_TEX_UNITS
;
205 ctx
->Const
.MaxTextureCoordUnits
= I915_TEX_UNITS
;
206 ctx
->Const
.MaxVarying
= I915_TEX_UNITS
;
207 ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxOutputComponents
=
208 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxInputComponents
= ctx
->Const
.MaxVarying
* 4;
209 ctx
->Const
.MaxCombinedTextureImageUnits
=
210 ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxTextureImageUnits
+
211 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
;
213 /* Advertise the full hardware capabilities. The new memory
214 * manager should cope much better with overload situations:
216 ctx
->Const
.MaxTextureLevels
= 12;
217 ctx
->Const
.Max3DTextureLevels
= 9;
218 ctx
->Const
.MaxCubeTextureLevels
= 12;
219 ctx
->Const
.MaxTextureRectSize
= (1 << 11);
220 ctx
->Const
.MaxTextureUnits
= I915_TEX_UNITS
;
222 ctx
->Const
.MaxTextureMaxAnisotropy
= 4.0;
224 /* GL_ARB_fragment_program limits - don't think Mesa actually
225 * validates programs against these, and in any case one ARB
226 * instruction can translate to more than one HW instruction, so
227 * we'll still have to check and fallback each time.
229 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxNativeTemps
= I915_MAX_TEMPORARY
;
230 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxNativeAttribs
= 11; /* 8 tex, 2 color, fog */
231 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxNativeParameters
= I915_MAX_CONSTANT
;
232 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxNativeAluInstructions
= I915_MAX_ALU_INSN
;
233 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxNativeTexInstructions
= I915_MAX_TEX_INSN
;
234 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxNativeInstructions
= (I915_MAX_ALU_INSN
+
236 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxNativeTexIndirections
=
237 I915_MAX_TEX_INDIRECT
;
238 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxNativeAddressRegs
= 0; /* I don't think we have one */
239 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxEnvParams
=
240 MIN2(ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxNativeParameters
,
241 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxEnvParams
);
243 /* i915 stores all values in single-precision floats. Values aren't set
244 * for other program targets because software is used for those targets.
246 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MediumFloat
.RangeMin
= 127;
247 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MediumFloat
.RangeMax
= 127;
248 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MediumFloat
.Precision
= 23;
249 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].LowFloat
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].HighFloat
=
250 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MediumFloat
;
251 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MediumInt
.RangeMin
= 24;
252 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MediumInt
.RangeMax
= 24;
253 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MediumInt
.Precision
= 0;
254 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].LowInt
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].HighInt
=
255 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MediumInt
;
257 ctx
->FragmentProgram
._MaintainTexEnvProgram
= true;
259 /* FINISHME: Are there other options that should be enabled for software
260 * FINISHME: vertex shaders?
262 ctx
->Const
.ShaderCompilerOptions
[MESA_SHADER_VERTEX
].EmitNoIndirectSampler
=
265 struct gl_shader_compiler_options
*const fs_options
=
266 & ctx
->Const
.ShaderCompilerOptions
[MESA_SHADER_FRAGMENT
];
267 fs_options
->MaxIfDepth
= 0;
268 fs_options
->EmitNoPow
= true;
269 fs_options
->EmitNoMainReturn
= true;
270 fs_options
->EmitNoIndirectInput
= true;
271 fs_options
->EmitNoIndirectOutput
= true;
272 fs_options
->EmitNoIndirectUniform
= true;
273 fs_options
->EmitNoIndirectTemp
= true;
274 fs_options
->EmitNoIndirectSampler
= true;
276 ctx
->Const
.MaxDrawBuffers
= 1;
277 ctx
->Const
.QueryCounterBits
.SamplesPassed
= 0;
279 _tnl_init_vertices(ctx
, ctx
->Const
.MaxArrayLockSize
+ 12,
280 36 * sizeof(GLfloat
));
282 intel
->verts
= TNL_CONTEXT(ctx
)->clipspace
.vertex_buf
;
286 /* Always enable pixel fog. Vertex fog using fog coord will conflict
287 * with fog code appended onto fragment program.
289 _tnl_allow_vertex_fog(ctx
, 0);
290 _tnl_allow_pixel_fog(ctx
, 1);
292 _mesa_compute_version(ctx
);
294 _mesa_initialize_dispatch_tables(ctx
);
295 _mesa_initialize_vbo_vtxfmt(ctx
);