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 #include "util/u_memory.h"
40
41 /***************************************
42 * Mesa's Driver Functions
43 ***************************************/
44
45 static void
i830InitDriverFunctions(struct dd_function_table * functions)46 i830InitDriverFunctions(struct dd_function_table *functions)
47 {
48 intelInitDriverFunctions(functions);
49 i830InitStateFuncs(functions);
50 }
51
52 extern const struct tnl_pipeline_stage *intel_pipeline[];
53
54 bool
i830CreateContext(int api,const struct gl_config * mesaVis,__DRIcontext * driContextPriv,unsigned major_version,unsigned minor_version,uint32_t flags,unsigned * error,void * sharedContextPrivate)55 i830CreateContext(int api,
56 const struct gl_config * mesaVis,
57 __DRIcontext * driContextPriv,
58 unsigned major_version,
59 unsigned minor_version,
60 uint32_t flags,
61 unsigned *error,
62 void *sharedContextPrivate)
63 {
64 struct dd_function_table functions;
65 struct i830_context *i830 = align_calloc(sizeof(struct i830_context), 16);
66 struct intel_context *intel = &i830->intel;
67 struct gl_context *ctx = &intel->ctx;
68
69 if (!i830) {
70 *error = __DRI_CTX_ERROR_NO_MEMORY;
71 return false;
72 }
73
74 i830InitVtbl(i830);
75 i830InitDriverFunctions(&functions);
76
77 if (!intelInitContext(intel, __DRI_API_OPENGL,
78 major_version, minor_version, flags,
79 mesaVis, driContextPriv,
80 sharedContextPrivate, &functions,
81 error)) {
82 align_free(i830);
83 return false;
84 }
85
86 intel_init_texture_formats(ctx);
87
88 _math_matrix_ctr(&intel->ViewportMatrix);
89
90 /* Initialize swrast, tnl driver tables: */
91 intelInitTriFuncs(ctx);
92
93 /* Install the customized pipeline: */
94 _tnl_destroy_pipeline(ctx);
95 _tnl_install_pipeline(ctx, intel_pipeline);
96
97 if (intel->no_rast)
98 FALLBACK(intel, INTEL_FALLBACK_USER, 1);
99
100 intel->ctx.Const.MaxTextureUnits = I830_TEX_UNITS;
101 intel->ctx.Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = I830_TEX_UNITS;
102 intel->ctx.Const.MaxTextureCoordUnits = I830_TEX_UNITS;
103
104 /* Advertise the full hardware capabilities. The new memory
105 * manager should cope much better with overload situations:
106 */
107 ctx->Const.MaxTextureSize = 2048;
108 ctx->Const.Max3DTextureLevels = 9;
109 ctx->Const.MaxCubeTextureLevels = 11;
110 ctx->Const.MaxTextureRectSize = (1 << 11);
111 ctx->Const.MaxTextureUnits = I830_TEX_UNITS;
112
113 ctx->Const.MaxTextureMaxAnisotropy = 2.0;
114
115 ctx->Const.MaxDrawBuffers = 1;
116 ctx->Const.QueryCounterBits.SamplesPassed = 0;
117
118 _tnl_init_vertices(ctx, ctx->Const.MaxArrayLockSize + 12,
119 18 * sizeof(GLfloat));
120
121 intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf;
122
123 i830InitState(i830);
124
125 _tnl_allow_vertex_fog(ctx, 1);
126 _tnl_allow_pixel_fog(ctx, 0);
127
128 _mesa_override_extensions(ctx);
129 _mesa_compute_version(ctx);
130
131 _mesa_initialize_dispatch_tables(ctx);
132 _mesa_initialize_vbo_vtxfmt(ctx);
133
134 return true;
135 }
136