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/imports.h"
30 #include "main/macros.h"
31 #include "intel_tris.h"
32 #include "tnl/t_context.h"
33 #include "tnl/t_pipeline.h"
34 #include "tnl/t_vertex.h"
36 #include "swrast/swrast.h"
37 #include "swrast_setup/swrast_setup.h"
39 #include "../glsl/ralloc.h"
42 #include "i915_program.h"
44 #include "intel_span.h"
46 /***************************************
47 * Mesa's Driver Functions
48 ***************************************/
50 /* Override intel default.
53 i915InvalidateState(struct gl_context
* ctx
, GLuint new_state
)
55 _swrast_InvalidateState(ctx
, new_state
);
56 _swsetup_InvalidateState(ctx
, new_state
);
57 _vbo_InvalidateState(ctx
, new_state
);
58 _tnl_InvalidateState(ctx
, new_state
);
59 _tnl_invalidate_vertex_state(ctx
, new_state
);
60 intel_context(ctx
)->NewGLState
|= new_state
;
62 /* Todo: gather state values under which tracked parameters become
63 * invalidated, add callbacks for things like
64 * ProgramLocalParameters, etc.
67 struct i915_fragment_program
*p
=
68 (struct i915_fragment_program
*) ctx
->FragmentProgram
._Current
;
69 if (p
&& p
->nr_params
)
70 p
->params_uptodate
= 0;
73 if (new_state
& (_NEW_STENCIL
| _NEW_BUFFERS
| _NEW_POLYGON
))
74 i915_update_stencil(ctx
);
75 if (new_state
& (_NEW_LIGHT
))
76 i915_update_provoking_vertex(ctx
);
77 if (new_state
& (_NEW_PROGRAM
| _NEW_PROGRAM_CONSTANTS
))
78 i915_update_program(ctx
);
83 i915InitDriverFunctions(struct dd_function_table
*functions
)
85 intelInitDriverFunctions(functions
);
86 i915InitStateFunctions(functions
);
87 i915InitFragProgFuncs(functions
);
88 functions
->UpdateState
= i915InvalidateState
;
92 extern const struct tnl_pipeline_stage
*intel_pipeline
[];
95 i915CreateContext(int api
,
96 const struct gl_config
* mesaVis
,
97 __DRIcontext
* driContextPriv
,
98 void *sharedContextPrivate
)
100 struct dd_function_table functions
;
101 struct i915_context
*i915
= rzalloc(NULL
, struct i915_context
);
102 struct intel_context
*intel
= &i915
->intel
;
103 struct gl_context
*ctx
= &intel
->ctx
;
110 i915InitDriverFunctions(&functions
);
112 if (!intelInitContext(intel
, api
, mesaVis
, driContextPriv
,
113 sharedContextPrivate
, &functions
)) {
118 _math_matrix_ctr(&intel
->ViewportMatrix
);
120 /* Initialize swrast, tnl driver tables: */
121 intelInitSpanFuncs(ctx
);
122 intelInitTriFuncs(ctx
);
124 /* Install the customized pipeline: */
125 _tnl_destroy_pipeline(ctx
);
126 _tnl_install_pipeline(ctx
, intel_pipeline
);
129 FALLBACK(intel
, INTEL_FALLBACK_USER
, 1);
131 ctx
->Const
.MaxTextureUnits
= I915_TEX_UNITS
;
132 ctx
->Const
.MaxTextureImageUnits
= I915_TEX_UNITS
;
133 ctx
->Const
.MaxTextureCoordUnits
= I915_TEX_UNITS
;
134 ctx
->Const
.MaxVarying
= I915_TEX_UNITS
;
135 ctx
->Const
.MaxCombinedTextureImageUnits
=
136 ctx
->Const
.MaxVertexTextureImageUnits
+
137 ctx
->Const
.MaxTextureImageUnits
;
139 /* Advertise the full hardware capabilities. The new memory
140 * manager should cope much better with overload situations:
142 ctx
->Const
.MaxTextureLevels
= 12;
143 ctx
->Const
.Max3DTextureLevels
= 9;
144 ctx
->Const
.MaxCubeTextureLevels
= 12;
145 ctx
->Const
.MaxTextureRectSize
= (1 << 11);
146 ctx
->Const
.MaxTextureUnits
= I915_TEX_UNITS
;
148 ctx
->Const
.MaxTextureMaxAnisotropy
= 4.0;
150 /* GL_ARB_fragment_program limits - don't think Mesa actually
151 * validates programs against these, and in any case one ARB
152 * instruction can translate to more than one HW instruction, so
153 * we'll still have to check and fallback each time.
155 ctx
->Const
.FragmentProgram
.MaxNativeTemps
= I915_MAX_TEMPORARY
;
156 ctx
->Const
.FragmentProgram
.MaxNativeAttribs
= 11; /* 8 tex, 2 color, fog */
157 ctx
->Const
.FragmentProgram
.MaxNativeParameters
= I915_MAX_CONSTANT
;
158 ctx
->Const
.FragmentProgram
.MaxNativeAluInstructions
= I915_MAX_ALU_INSN
;
159 ctx
->Const
.FragmentProgram
.MaxNativeTexInstructions
= I915_MAX_TEX_INSN
;
160 ctx
->Const
.FragmentProgram
.MaxNativeInstructions
= (I915_MAX_ALU_INSN
+
162 ctx
->Const
.FragmentProgram
.MaxNativeTexIndirections
=
163 I915_MAX_TEX_INDIRECT
;
164 ctx
->Const
.FragmentProgram
.MaxNativeAddressRegs
= 0; /* I don't think we have one */
165 ctx
->Const
.FragmentProgram
.MaxEnvParams
=
166 MIN2(ctx
->Const
.FragmentProgram
.MaxNativeParameters
,
167 ctx
->Const
.FragmentProgram
.MaxEnvParams
);
169 /* i915 stores all values in single-precision floats. Values aren't set
170 * for other program targets because software is used for those targets.
172 ctx
->Const
.FragmentProgram
.MediumFloat
.RangeMin
= 127;
173 ctx
->Const
.FragmentProgram
.MediumFloat
.RangeMax
= 127;
174 ctx
->Const
.FragmentProgram
.MediumFloat
.Precision
= 23;
175 ctx
->Const
.FragmentProgram
.LowFloat
= ctx
->Const
.FragmentProgram
.HighFloat
=
176 ctx
->Const
.FragmentProgram
.MediumFloat
;
177 ctx
->Const
.FragmentProgram
.MediumInt
.RangeMin
= 24;
178 ctx
->Const
.FragmentProgram
.MediumInt
.RangeMax
= 24;
179 ctx
->Const
.FragmentProgram
.MediumInt
.Precision
= 0;
180 ctx
->Const
.FragmentProgram
.LowInt
= ctx
->Const
.FragmentProgram
.HighInt
=
181 ctx
->Const
.FragmentProgram
.MediumInt
;
183 ctx
->FragmentProgram
._MaintainTexEnvProgram
= GL_TRUE
;
185 /* FINISHME: Are there other options that should be enabled for software
186 * FINISHME: vertex shaders?
188 ctx
->ShaderCompilerOptions
[MESA_SHADER_VERTEX
].EmitCondCodes
= GL_TRUE
;
190 struct gl_shader_compiler_options
*const fs_options
=
191 & ctx
->ShaderCompilerOptions
[MESA_SHADER_FRAGMENT
];
192 fs_options
->EmitNoIfs
= GL_TRUE
;
193 fs_options
->EmitNoNoise
= GL_TRUE
;
194 fs_options
->EmitNoPow
= GL_TRUE
;
195 fs_options
->EmitNoMainReturn
= GL_TRUE
;
196 fs_options
->EmitNoIndirectInput
= GL_TRUE
;
197 fs_options
->EmitNoIndirectOutput
= GL_TRUE
;
198 fs_options
->EmitNoIndirectUniform
= GL_TRUE
;
199 fs_options
->EmitNoIndirectTemp
= GL_TRUE
;
201 ctx
->Const
.MaxDrawBuffers
= 1;
203 _tnl_init_vertices(ctx
, ctx
->Const
.MaxArrayLockSize
+ 12,
204 36 * sizeof(GLfloat
));
206 intel
->verts
= TNL_CONTEXT(ctx
)->clipspace
.vertex_buf
;
210 /* Always enable pixel fog. Vertex fog using fog coord will conflict
211 * with fog code appended onto fragment program.
213 _tnl_allow_vertex_fog(ctx
, 0);
214 _tnl_allow_pixel_fog(ctx
, 1);