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mesa: add/update comments in _mesa_copy_buffer_subdata()
[mesa.git] / src / mesa / drivers / dri / intel / intel_extensions_es.c
1 /**************************************************************************
2 *
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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 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.
25 *
26 **************************************************************************/
27
28 #include "main/extensions.h"
29 #include "main/mfeatures.h"
30
31 #include "intel_context.h"
32 #include "intel_extensions.h"
33
34 static const char *common_extensions[] = {
35 /* Used by mesa internally (cf all_mesa_extensions in ../common/utils.c) */
36 "GL_ARB_transpose_matrix",
37 "GL_ARB_window_pos",
38 "GL_EXT_blend_func_separate",
39 "GL_EXT_compiled_vertex_array",
40 "GL_EXT_framebuffer_blit",
41 "GL_IBM_multimode_draw_arrays",
42 "GL_MESA_window_pos",
43 "GL_NV_vertex_program",
44
45 /* Optional GLES1 or GLES2 */
46 #if FEATURE_OES_EGL_image
47 "GL_OES_EGL_image",
48 #endif
49 "GL_EXT_texture_filter_anisotropic",
50 "GL_EXT_packed_depth_stencil",
51 "GL_EXT_blend_minmax",
52
53 NULL
54 };
55
56 static const char *es1_extensions[] = {
57 /* Required by GLES1 */
58 "GL_ARB_multitexture",
59 "GL_ARB_texture_env_add",
60 "GL_ARB_texture_env_combine",
61 "GL_ARB_texture_env_dot3",
62 "GL_ARB_point_parameters",
63
64 /* Optional GLES1 */
65 "GL_EXT_blend_equation_separate",
66 "GL_EXT_blend_func_separate",
67 "GL_EXT_blend_subtract",
68 "GL_OES_draw_texture",
69 "GL_ARB_framebuffer_object",
70 "GL_EXT_framebuffer_object",
71 "GL_ARB_point_sprite",
72 "GL_EXT_stencil_wrap",
73 "GL_ARB_texture_cube_map",
74 "GL_ARB_texture_env_crossbar",
75 "GL_ARB_texture_mirrored_repeat",
76 "GL_EXT_texture_lod_bias",
77
78 NULL
79 };
80
81 static const char *es2_extensions[] = {
82 /* Required by GLES2 */
83 "GL_ARB_fragment_program",
84 "GL_ARB_fragment_shader",
85 "GL_ARB_shader_objects",
86 "GL_ARB_texture_cube_map",
87 "GL_ARB_texture_non_power_of_two",
88 "GL_ARB_vertex_shader",
89 "GL_EXT_blend_color",
90 "GL_EXT_blend_equation_separate",
91 "GL_EXT_blend_minmax",
92 "GL_NV_blend_square",
93
94 /* Optional GLES2 */
95 "GL_ARB_framebuffer_object",
96 "GL_ARB_depth_texture",
97 "GL_EXT_framebuffer_object",
98
99 NULL,
100 };
101
102 void
103 intelInitExtensionsES1(struct gl_context *ctx)
104 {
105 int i;
106
107 for (i = 0; common_extensions[i]; i++)
108 _mesa_enable_extension(ctx, common_extensions[i]);
109 for (i = 0; es1_extensions[i]; i++)
110 _mesa_enable_extension(ctx, es1_extensions[i]);
111 }
112
113 /**
114 * Initializes potential list of extensions if ctx == NULL, or actually enables
115 * extensions for a context.
116 */
117 void
118 intelInitExtensionsES2(struct gl_context *ctx)
119 {
120 int i;
121 struct intel_context *intel = intel_context(ctx);
122
123 for (i = 0; common_extensions[i]; i++)
124 _mesa_enable_extension(ctx, common_extensions[i]);
125 for (i = 0; es2_extensions[i]; i++)
126 _mesa_enable_extension(ctx, es2_extensions[i]);
127
128 /* This extension must be manually disabled on GEN3 because it may have
129 * been enabled by default.
130 */
131 if (intel->gen < 4) {
132 ctx->Extensions.OES_standard_derivatives = false;
133 }
134 }