1 /*
2 * Copyright © 2011 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 /* This file declares stripped-down versions of functions that
25 * normally exist outside of the glsl folder, so that they can be used
26 * when running the GLSL compiler standalone (for unit testing or
27 * compiling builtins).
28 */
29
30 #include "standalone_scaffolding.h"
31
32 #include <assert.h>
33 #include <string.h>
34 #include "ralloc.h"
35
36 void
_mesa_reference_shader(struct gl_context * ctx,struct gl_shader ** ptr,struct gl_shader * sh)37 _mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
38 struct gl_shader *sh)
39 {
40 (void) ctx;
41 *ptr = sh;
42 }
43
44 void
_mesa_shader_debug(struct gl_context *,GLenum,GLuint,const char *,int)45 _mesa_shader_debug(struct gl_context *, GLenum, GLuint,
46 const char *, int)
47 {
48 }
49
50 struct gl_shader *
_mesa_new_shader(struct gl_context * ctx,GLuint name,GLenum type)51 _mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type)
52 {
53 struct gl_shader *shader;
54
55 (void) ctx;
56
57 assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER);
58 shader = rzalloc(NULL, struct gl_shader);
59 if (shader) {
60 shader->Type = type;
61 shader->Name = name;
62 shader->RefCount = 1;
63 }
64 return shader;
65 }
66
initialize_context_to_defaults(struct gl_context * ctx,gl_api api)67 void initialize_context_to_defaults(struct gl_context *ctx, gl_api api)
68 {
69 memset(ctx, 0, sizeof(*ctx));
70
71 ctx->API = api;
72
73 ctx->Extensions.dummy_false = false;
74 ctx->Extensions.dummy_true = true;
75 ctx->Extensions.ARB_ES2_compatibility = true;
76 ctx->Extensions.ARB_draw_instanced = true;
77 ctx->Extensions.ARB_fragment_coord_conventions = true;
78 ctx->Extensions.EXT_texture_array = true;
79 ctx->Extensions.NV_texture_rectangle = true;
80 ctx->Extensions.EXT_texture3D = true;
81 ctx->Extensions.OES_EGL_image_external = true;
82 ctx->Extensions.ARB_shader_bit_encoding = true;
83
84 ctx->Const.GLSLVersion = 120;
85
86 /* 1.20 minimums. */
87 ctx->Const.MaxLights = 8;
88 ctx->Const.MaxClipPlanes = 6;
89 ctx->Const.MaxTextureUnits = 2;
90 ctx->Const.MaxTextureCoordUnits = 2;
91 ctx->Const.VertexProgram.MaxAttribs = 16;
92
93 ctx->Const.VertexProgram.MaxUniformComponents = 512;
94 ctx->Const.MaxVarying = 8; /* == gl_MaxVaryingFloats / 4 */
95 ctx->Const.MaxVertexTextureImageUnits = 0;
96 ctx->Const.MaxCombinedTextureImageUnits = 2;
97 ctx->Const.MaxTextureImageUnits = 2;
98 ctx->Const.FragmentProgram.MaxUniformComponents = 64;
99
100 ctx->Const.MaxDrawBuffers = 1;
101 }
102