1 /**************************************************************************
2 *
3 * Copyright 2003 VMware, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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.
25 *
26 **************************************************************************/
27
28 #include "i830_context.h"
29 #include "main/api_exec.h"
30 #include "main/extensions.h"
31 #include "main/version.h"
32 #include "main/vtxfmt.h"
33 #include "tnl/tnl.h"
34 #include "tnl/t_vertex.h"
35 #include "tnl/t_context.h"
36 #include "tnl/t_pipeline.h"
37 #include "intel_tris.h"
38 #include "util/ralloc.h"
39
40 /***************************************
41 * Mesa's Driver Functions
42 ***************************************/
43
44 static void
i830InitDriverFunctions(struct dd_function_table * functions)45 i830InitDriverFunctions(struct dd_function_table *functions)
46 {
47 intelInitDriverFunctions(functions);
48 i830InitStateFuncs(functions);
49 }
50
51 extern const struct tnl_pipeline_stage *intel_pipeline[];
52
53 bool
i830CreateContext(int api,const struct gl_config * mesaVis,__DRIcontext * driContextPriv,unsigned major_version,unsigned minor_version,uint32_t flags,unsigned * error,void * sharedContextPrivate)54 i830CreateContext(int api,
55 const struct gl_config * mesaVis,
56 __DRIcontext * driContextPriv,
57 unsigned major_version,
58 unsigned minor_version,
59 uint32_t flags,
60 unsigned *error,
61 void *sharedContextPrivate)
62 {
63 struct dd_function_table functions;
64 struct i830_context *i830 = rzalloc(NULL, struct i830_context);
65 struct intel_context *intel = &i830->intel;
66 struct gl_context *ctx = &intel->ctx;
67
68 if (!i830) {
69 *error = __DRI_CTX_ERROR_NO_MEMORY;
70 return false;
71 }
72
73 i830InitVtbl(i830);
74 i830InitDriverFunctions(&functions);
75
76 if (!intelInitContext(intel, __DRI_API_OPENGL,
77 major_version, minor_version, flags,
78 mesaVis, driContextPriv,
79 sharedContextPrivate, &functions,
80 error)) {
81 ralloc_free(i830);
82 return false;
83 }
84
85 intel_init_texture_formats(ctx);
86
87 _math_matrix_ctr(&intel->ViewportMatrix);
88
89 /* Initialize swrast, tnl driver tables: */
90 intelInitTriFuncs(ctx);
91
92 /* Install the customized pipeline: */
93 _tnl_destroy_pipeline(ctx);
94 _tnl_install_pipeline(ctx, intel_pipeline);
95
96 if (intel->no_rast)
97 FALLBACK(intel, INTEL_FALLBACK_USER, 1);
98
99 intel->ctx.Const.MaxTextureUnits = I830_TEX_UNITS;
100 intel->ctx.Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = I830_TEX_UNITS;
101 intel->ctx.Const.MaxTextureCoordUnits = I830_TEX_UNITS;
102
103 /* Advertise the full hardware capabilities. The new memory
104 * manager should cope much better with overload situations:
105 */
106 ctx->Const.MaxTextureSize = 2048;
107 ctx->Const.Max3DTextureLevels = 9;
108 ctx->Const.MaxCubeTextureLevels = 11;
109 ctx->Const.MaxTextureRectSize = (1 << 11);
110 ctx->Const.MaxTextureUnits = I830_TEX_UNITS;
111
112 ctx->Const.MaxTextureMaxAnisotropy = 2.0;
113
114 ctx->Const.MaxDrawBuffers = 1;
115 ctx->Const.QueryCounterBits.SamplesPassed = 0;
116
117 _tnl_init_vertices(ctx, ctx->Const.MaxArrayLockSize + 12,
118 18 * sizeof(GLfloat));
119
120 intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf;
121
122 i830InitState(i830);
123
124 _tnl_allow_vertex_fog(ctx, 1);
125 _tnl_allow_pixel_fog(ctx, 0);
126
127 _mesa_override_extensions(ctx);
128 _mesa_compute_version(ctx);
129
130 _mesa_initialize_dispatch_tables(ctx);
131 _mesa_initialize_vbo_vtxfmt(ctx);
132
133 return true;
134 }
135