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Diffstat (limited to 'src/mesa/main/extensions.c')
-rw-r--r--src/mesa/main/extensions.c212
1 files changed, 167 insertions, 45 deletions
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 9522f04ae5..5b54c1cf8c 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -1,8 +1,9 @@
/*
* Mesa 3-D graphics library
- * Version: 7.3
+ * Version: 7.6
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -31,7 +32,7 @@
#include "mtypes.h"
-#define F(x) (int)(uintptr_t)&(((struct gl_extensions *)0)->x)
+#define F(x) offsetof(struct gl_extensions, x)
#define ON GL_TRUE
#define OFF GL_FALSE
@@ -44,26 +45,33 @@ static const struct {
const char *name;
int flag_offset;
} default_extensions[] = {
+ { OFF, "GL_ARB_copy_buffer", F(ARB_copy_buffer) },
{ OFF, "GL_ARB_depth_texture", F(ARB_depth_texture) },
- { OFF, "GL_ARB_draw_buffers", F(ARB_draw_buffers) },
+ { OFF, "GL_ARB_depth_clamp", F(ARB_depth_clamp) },
+ { ON, "GL_ARB_draw_buffers", F(ARB_draw_buffers) },
+ { OFF, "GL_ARB_draw_elements_base_vertex", F(ARB_draw_elements_base_vertex) },
{ OFF, "GL_ARB_fragment_program", F(ARB_fragment_program) },
{ OFF, "GL_ARB_fragment_program_shadow", F(ARB_fragment_program_shadow) },
{ OFF, "GL_ARB_fragment_shader", F(ARB_fragment_shader) },
+ { OFF, "GL_ARB_framebuffer_object", F(ARB_framebuffer_object) },
{ OFF, "GL_ARB_half_float_pixel", F(ARB_half_float_pixel) },
{ OFF, "GL_ARB_imaging", F(ARB_imaging) },
- { OFF, "GL_ARB_multisample", F(ARB_multisample) },
+ { OFF, "GL_ARB_map_buffer_range", F(ARB_map_buffer_range) },
+ { ON, "GL_ARB_multisample", F(ARB_multisample) },
{ OFF, "GL_ARB_multitexture", F(ARB_multitexture) },
{ OFF, "GL_ARB_occlusion_query", F(ARB_occlusion_query) },
{ OFF, "GL_ARB_pixel_buffer_object", F(EXT_pixel_buffer_object) },
{ OFF, "GL_ARB_point_parameters", F(EXT_point_parameters) },
{ OFF, "GL_ARB_point_sprite", F(ARB_point_sprite) },
+ { OFF, "GL_ARB_seamless_cube_map", F(ARB_seamless_cube_map) },
{ OFF, "GL_ARB_shader_objects", F(ARB_shader_objects) },
{ OFF, "GL_ARB_shading_language_100", F(ARB_shading_language_100) },
{ OFF, "GL_ARB_shading_language_120", F(ARB_shading_language_120) },
{ OFF, "GL_ARB_shadow", F(ARB_shadow) },
- { OFF, "GL_ARB_shadow_ambient", F(SGIX_shadow_ambient) },
+ { OFF, "GL_ARB_shadow_ambient", F(ARB_shadow_ambient) },
+ { OFF, "GL_ARB_sync", F(ARB_sync) },
{ OFF, "GL_ARB_texture_border_clamp", F(ARB_texture_border_clamp) },
- { OFF, "GL_ARB_texture_compression", F(ARB_texture_compression) },
+ { ON, "GL_ARB_texture_compression", F(ARB_texture_compression) },
{ OFF, "GL_ARB_texture_cube_map", F(ARB_texture_cube_map) },
{ OFF, "GL_ARB_texture_env_add", F(EXT_texture_env_add) },
{ OFF, "GL_ARB_texture_env_combine", F(ARB_texture_env_combine) },
@@ -74,7 +82,9 @@ static const struct {
{ OFF, "GL_ARB_texture_non_power_of_two", F(ARB_texture_non_power_of_two)},
{ OFF, "GL_ARB_texture_rectangle", F(NV_texture_rectangle) },
{ ON, "GL_ARB_transpose_matrix", F(ARB_transpose_matrix) },
- { OFF, "GL_ARB_vertex_buffer_object", F(ARB_vertex_buffer_object) },
+ { OFF, "GL_ARB_vertex_array_bgra", F(EXT_vertex_array_bgra) },
+ { OFF, "GL_ARB_vertex_array_object", F(ARB_vertex_array_object) },
+ { ON, "GL_ARB_vertex_buffer_object", F(ARB_vertex_buffer_object) },
{ OFF, "GL_ARB_vertex_program", F(ARB_vertex_program) },
{ OFF, "GL_ARB_vertex_shader", F(ARB_vertex_shader) },
{ ON, "GL_ARB_window_pos", F(ARB_window_pos) },
@@ -86,7 +96,7 @@ static const struct {
{ OFF, "GL_EXT_blend_logic_op", F(EXT_blend_logic_op) },
{ OFF, "GL_EXT_blend_minmax", F(EXT_blend_minmax) },
{ OFF, "GL_EXT_blend_subtract", F(EXT_blend_subtract) },
- { ON, "GL_EXT_clip_volume_hint", F(EXT_clip_volume_hint) },
+ { OFF, "GL_EXT_clip_volume_hint", F(EXT_clip_volume_hint) },
{ OFF, "GL_EXT_cull_vertex", F(EXT_cull_vertex) },
{ ON, "GL_EXT_compiled_vertex_array", F(EXT_compiled_vertex_array) },
{ OFF, "GL_EXT_convolution", F(EXT_convolution) },
@@ -98,13 +108,14 @@ static const struct {
{ OFF, "GL_EXT_fog_coord", F(EXT_fog_coord) },
{ OFF, "GL_EXT_gpu_program_parameters", F(EXT_gpu_program_parameters) },
{ OFF, "GL_EXT_histogram", F(EXT_histogram) },
- { OFF, "GL_EXT_multi_draw_arrays", F(EXT_multi_draw_arrays) },
+ { ON, "GL_EXT_multi_draw_arrays", F(EXT_multi_draw_arrays) },
{ OFF, "GL_EXT_packed_depth_stencil", F(EXT_packed_depth_stencil) },
{ ON, "GL_EXT_packed_pixels", F(EXT_packed_pixels) },
{ OFF, "GL_EXT_paletted_texture", F(EXT_paletted_texture) },
{ OFF, "GL_EXT_pixel_buffer_object", F(EXT_pixel_buffer_object) },
{ OFF, "GL_EXT_point_parameters", F(EXT_point_parameters) },
{ ON, "GL_EXT_polygon_offset", F(EXT_polygon_offset) },
+ { OFF, "GL_EXT_provoking_vertex", F(EXT_provoking_vertex) },
{ ON, "GL_EXT_rescale_normal", F(EXT_rescale_normal) },
{ OFF, "GL_EXT_secondary_color", F(EXT_secondary_color) },
{ ON, "GL_EXT_separate_specular_color", F(EXT_separate_specular_color) },
@@ -126,33 +137,38 @@ static const struct {
{ ON, "GL_EXT_texture_object", F(EXT_texture_object) },
{ OFF, "GL_EXT_texture_rectangle", F(NV_texture_rectangle) },
{ OFF, "GL_EXT_texture_sRGB", F(EXT_texture_sRGB) },
+ { OFF, "GL_EXT_texture_swizzle", F(EXT_texture_swizzle) },
{ OFF, "GL_EXT_timer_query", F(EXT_timer_query) },
{ ON, "GL_EXT_vertex_array", F(EXT_vertex_array) },
+ { OFF, "GL_EXT_vertex_array_bgra", F(EXT_vertex_array_bgra) },
{ OFF, "GL_EXT_vertex_array_set", F(EXT_vertex_array_set) },
{ OFF, "GL_3DFX_texture_compression_FXT1", F(TDFX_texture_compression_FXT1) },
{ OFF, "GL_APPLE_client_storage", F(APPLE_client_storage) },
{ ON, "GL_APPLE_packed_pixels", F(APPLE_packed_pixels) },
{ OFF, "GL_APPLE_vertex_array_object", F(APPLE_vertex_array_object) },
{ OFF, "GL_ATI_blend_equation_separate", F(EXT_blend_equation_separate) },
+ { OFF, "GL_ATI_envmap_bumpmap", F(ATI_envmap_bumpmap) },
{ OFF, "GL_ATI_texture_env_combine3", F(ATI_texture_env_combine3)},
{ OFF, "GL_ATI_texture_mirror_once", F(ATI_texture_mirror_once)},
{ OFF, "GL_ATI_fragment_shader", F(ATI_fragment_shader)},
{ OFF, "GL_ATI_separate_stencil", F(ATI_separate_stencil)},
- { OFF, "GL_IBM_multimode_draw_arrays", F(IBM_multimode_draw_arrays) },
+ { ON, "GL_IBM_multimode_draw_arrays", F(IBM_multimode_draw_arrays) },
{ ON, "GL_IBM_rasterpos_clip", F(IBM_rasterpos_clip) },
{ OFF, "GL_IBM_texture_mirrored_repeat", F(ARB_texture_mirrored_repeat)},
{ OFF, "GL_INGR_blend_func_separate", F(EXT_blend_func_separate) },
{ OFF, "GL_MESA_pack_invert", F(MESA_pack_invert) },
{ OFF, "GL_MESA_packed_depth_stencil", F(MESA_packed_depth_stencil) },
- { OFF, "GL_MESA_program_debug", F(MESA_program_debug) },
{ OFF, "GL_MESA_resize_buffers", F(MESA_resize_buffers) },
{ OFF, "GL_MESA_texture_array", F(MESA_texture_array) },
+ { OFF, "GL_MESA_texture_signed_rgba", F(MESA_texture_signed_rgba) },
{ OFF, "GL_MESA_ycbcr_texture", F(MESA_ycbcr_texture) },
{ ON, "GL_MESA_window_pos", F(ARB_window_pos) },
{ OFF, "GL_NV_blend_square", F(NV_blend_square) },
+ { OFF, "GL_NV_depth_clamp", F(ARB_depth_clamp) },
{ OFF, "GL_NV_fragment_program", F(NV_fragment_program) },
{ ON, "GL_NV_light_max_exponent", F(NV_light_max_exponent) },
{ OFF, "GL_NV_point_sprite", F(NV_point_sprite) },
+ { OFF, "GL_NV_texture_env_combine4", F(NV_texture_env_combine4) },
{ OFF, "GL_NV_texture_rectangle", F(NV_texture_rectangle) },
{ ON, "GL_NV_texgen_reflection", F(NV_texgen_reflection) },
{ OFF, "GL_NV_vertex_program", F(NV_vertex_program) },
@@ -165,11 +181,14 @@ static const struct {
{ OFF, "GL_SGIS_texture_border_clamp", F(ARB_texture_border_clamp) },
{ ON, "GL_SGIS_texture_edge_clamp", F(SGIS_texture_edge_clamp) },
{ ON, "GL_SGIS_texture_lod", F(SGIS_texture_lod) },
- { OFF, "GL_SGIX_depth_texture", F(ARB_depth_texture) },
- { OFF, "GL_SGIX_shadow", F(SGIX_shadow) },
- { OFF, "GL_SGIX_shadow_ambient", F(SGIX_shadow_ambient) },
- { OFF, "GL_SUN_multi_draw_arrays", F(EXT_multi_draw_arrays) },
+ { ON, "GL_SUN_multi_draw_arrays", F(EXT_multi_draw_arrays) },
{ OFF, "GL_S3_s3tc", F(S3_s3tc) },
+#if FEATURE_OES_draw_texture
+ { OFF, "GL_OES_draw_texture", F(OES_draw_texture) },
+#endif /* FEATURE_OES_draw_texture */
+#if FEATURE_OES_EGL_image
+ { OFF, "GL_OES_EGL_image", F(OES_EGL_image) },
+#endif
};
@@ -181,8 +200,11 @@ static const struct {
void
_mesa_enable_sw_extensions(GLcontext *ctx)
{
+ ctx->Extensions.ARB_copy_buffer = GL_TRUE;
+ ctx->Extensions.ARB_depth_clamp = GL_TRUE;
ctx->Extensions.ARB_depth_texture = GL_TRUE;
- ctx->Extensions.ARB_draw_buffers = GL_TRUE;
+ /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
+ ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
#if FEATURE_ARB_fragment_program
ctx->Extensions.ARB_fragment_program = GL_TRUE;
ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE;
@@ -190,10 +212,14 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
#if FEATURE_ARB_fragment_shader
ctx->Extensions.ARB_fragment_shader = GL_TRUE;
#endif
+#if FEATURE_ARB_framebuffer_object
+ ctx->Extensions.ARB_framebuffer_object = GL_TRUE;
+#endif
ctx->Extensions.ARB_half_float_pixel = GL_TRUE;
ctx->Extensions.ARB_imaging = GL_TRUE;
+ ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
ctx->Extensions.ARB_multitexture = GL_TRUE;
-#if FEATURE_ARB_occlusion_query
+#if FEATURE_queryobj
ctx->Extensions.ARB_occlusion_query = GL_TRUE;
#endif
ctx->Extensions.ARB_point_sprite = GL_TRUE;
@@ -204,9 +230,10 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
#endif
#if FEATURE_ARB_shading_language_120
- ctx->Extensions.ARB_shading_language_120 = GL_FALSE; /* not quite done */
+ ctx->Extensions.ARB_shading_language_120 = GL_TRUE;
#endif
ctx->Extensions.ARB_shadow = GL_TRUE;
+ ctx->Extensions.ARB_shadow_ambient = GL_TRUE;
ctx->Extensions.ARB_texture_border_clamp = GL_TRUE;
ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
@@ -215,6 +242,7 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
/*ctx->Extensions.ARB_texture_float = GL_TRUE;*/
ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
+ ctx->Extensions.ARB_vertex_array_object = GL_TRUE;
#if FEATURE_ARB_vertex_program
ctx->Extensions.ARB_vertex_program = GL_TRUE;
#endif
@@ -222,9 +250,13 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
ctx->Extensions.ARB_vertex_shader = GL_TRUE;
#endif
#if FEATURE_ARB_vertex_buffer_object
- ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;
+ /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/
+#endif
+#if FEATURE_ARB_sync
+ ctx->Extensions.ARB_sync = GL_TRUE;
#endif
ctx->Extensions.APPLE_vertex_array_object = GL_TRUE;
+ ctx->Extensions.ATI_envmap_bumpmap = GL_TRUE;
#if FEATURE_ATI_fragment_shader
ctx->Extensions.ATI_fragment_shader = GL_TRUE;
#endif
@@ -247,18 +279,19 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;
#endif
ctx->Extensions.EXT_histogram = GL_TRUE;
- ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;
+ /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/
ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
ctx->Extensions.EXT_paletted_texture = GL_TRUE;
#if FEATURE_EXT_pixel_buffer_object
ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
#endif
ctx->Extensions.EXT_point_parameters = GL_TRUE;
+ ctx->Extensions.EXT_provoking_vertex = GL_TRUE;
ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
ctx->Extensions.EXT_secondary_color = GL_TRUE;
ctx->Extensions.EXT_shared_texture_palette = GL_TRUE;
ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
- ctx->Extensions.EXT_stencil_two_side = GL_FALSE; /* obsolete */
+ ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
ctx->Extensions.EXT_texture_env_add = GL_TRUE;
ctx->Extensions.EXT_texture_env_combine = GL_TRUE;
ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
@@ -267,17 +300,17 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
#if FEATURE_EXT_texture_sRGB
ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
#endif
- ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE;
+ ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
+ ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
+ /*ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE;*/
ctx->Extensions.MESA_pack_invert = GL_TRUE;
-#if FEATURE_MESA_program_debug
- ctx->Extensions.MESA_program_debug = GL_TRUE;
-#endif
ctx->Extensions.MESA_resize_buffers = GL_TRUE;
ctx->Extensions.MESA_texture_array = GL_TRUE;
ctx->Extensions.MESA_ycbcr_texture = GL_TRUE;
ctx->Extensions.NV_blend_square = GL_TRUE;
/*ctx->Extensions.NV_light_max_exponent = GL_TRUE;*/
ctx->Extensions.NV_point_sprite = GL_TRUE;
+ ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;
ctx->Extensions.NV_texture_rectangle = GL_TRUE;
/*ctx->Extensions.NV_texgen_reflection = GL_TRUE;*/
#if FEATURE_NV_vertex_program
@@ -292,8 +325,6 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
ctx->Extensions.SGI_texture_color_table = GL_TRUE;
ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
ctx->Extensions.SGIS_texture_edge_clamp = GL_TRUE;
- ctx->Extensions.SGIX_shadow = GL_TRUE;
- ctx->Extensions.SGIX_shadow_ambient = GL_TRUE;
#if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
#endif
@@ -335,10 +366,10 @@ _mesa_enable_imaging_extensions(GLcontext *ctx)
void
_mesa_enable_1_3_extensions(GLcontext *ctx)
{
- ctx->Extensions.ARB_multisample = GL_TRUE;
+ /*ctx->Extensions.ARB_multisample = GL_TRUE;*/
ctx->Extensions.ARB_multitexture = GL_TRUE;
ctx->Extensions.ARB_texture_border_clamp = GL_TRUE;
- ctx->Extensions.ARB_texture_compression = GL_TRUE;
+ /*ctx->Extensions.ARB_texture_compression = GL_TRUE;*/
ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
@@ -365,7 +396,7 @@ _mesa_enable_1_4_extensions(GLcontext *ctx)
ctx->Extensions.EXT_blend_minmax = GL_TRUE;
ctx->Extensions.EXT_blend_subtract = GL_TRUE;
ctx->Extensions.EXT_fog_coord = GL_TRUE;
- ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;
+ /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/
ctx->Extensions.EXT_point_parameters = GL_TRUE;
ctx->Extensions.EXT_secondary_color = GL_TRUE;
ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
@@ -382,7 +413,7 @@ void
_mesa_enable_1_5_extensions(GLcontext *ctx)
{
ctx->Extensions.ARB_occlusion_query = GL_TRUE;
- ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;
+ /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/
ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
}
@@ -394,11 +425,12 @@ _mesa_enable_1_5_extensions(GLcontext *ctx)
void
_mesa_enable_2_0_extensions(GLcontext *ctx)
{
- ctx->Extensions.ARB_draw_buffers = GL_TRUE;
+ /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
#if FEATURE_ARB_fragment_shader
ctx->Extensions.ARB_fragment_shader = GL_TRUE;
#endif
ctx->Extensions.ARB_point_sprite = GL_TRUE;
+ ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
#if FEATURE_ARB_shader_objects
ctx->Extensions.ARB_shader_objects = GL_TRUE;
@@ -406,7 +438,7 @@ _mesa_enable_2_0_extensions(GLcontext *ctx)
#if FEATURE_ARB_shading_language_100
ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
#endif
- ctx->Extensions.EXT_stencil_two_side = GL_FALSE; /* obsolete */
+ ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
#if FEATURE_ARB_vertex_shader
ctx->Extensions.ARB_vertex_shader = GL_TRUE;
#endif
@@ -427,7 +459,7 @@ _mesa_enable_2_1_extensions(GLcontext *ctx)
ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
#endif
#ifdef FEATURE_ARB_shading_language_120
- ctx->Extensions.ARB_shading_language_120 = GL_FALSE; /* not quite done */
+ ctx->Extensions.ARB_shading_language_120 = GL_TRUE;
#endif
}
@@ -435,8 +467,9 @@ _mesa_enable_2_1_extensions(GLcontext *ctx)
/**
* Either enable or disable the named extension.
+ * \return GL_TRUE for success, GL_FALSE if invalid extension name
*/
-static void
+static GLboolean
set_extension( GLcontext *ctx, const char *name, GLboolean state )
{
GLboolean *base = (GLboolean *) &ctx->Extensions;
@@ -445,7 +478,7 @@ set_extension( GLcontext *ctx, const char *name, GLboolean state )
if (ctx->Extensions.String) {
/* The string was already queried - can't change it now! */
_mesa_problem(ctx, "Trying to enable/disable extension after glGetString(GL_EXTENSIONS): %s", name);
- return;
+ return GL_FALSE;
}
for (i = 0 ; i < Elements(default_extensions) ; i++) {
@@ -454,10 +487,10 @@ set_extension( GLcontext *ctx, const char *name, GLboolean state )
GLboolean *enabled = base + default_extensions[i].flag_offset;
*enabled = state;
}
- return;
+ return GL_TRUE;
}
}
- _mesa_problem(ctx, "Trying to enable unknown extension: %s", name);
+ return GL_FALSE;
}
@@ -468,7 +501,8 @@ set_extension( GLcontext *ctx, const char *name, GLboolean state )
void
_mesa_enable_extension( GLcontext *ctx, const char *name )
{
- set_extension(ctx, name, GL_TRUE);
+ if (!set_extension(ctx, name, GL_TRUE))
+ _mesa_problem(ctx, "Trying to enable unknown extension: %s", name);
}
@@ -479,7 +513,8 @@ _mesa_enable_extension( GLcontext *ctx, const char *name )
void
_mesa_disable_extension( GLcontext *ctx, const char *name )
{
- set_extension(ctx, name, GL_FALSE);
+ if (!set_extension(ctx, name, GL_FALSE))
+ _mesa_problem(ctx, "Trying to disable unknown extension: %s", name);
}
@@ -504,6 +539,80 @@ _mesa_extension_is_enabled( GLcontext *ctx, const char *name )
/**
+ * Append string 'b' onto string 'a'. Free 'a' and return new string.
+ */
+static char *
+append(const char *a, const char *b)
+{
+ const GLuint aLen = a ? _mesa_strlen(a) : 0;
+ const GLuint bLen = b ? _mesa_strlen(b) : 0;
+ char *s = _mesa_calloc(aLen + bLen + 1);
+ if (s) {
+ if (a)
+ _mesa_memcpy(s, a, aLen);
+ if (b)
+ _mesa_memcpy(s + aLen, b, bLen);
+ s[aLen + bLen] = '\0';
+ }
+ if (a)
+ _mesa_free((void *) a);
+ return s;
+}
+
+
+/**
+ * Check the MESA_EXTENSION_OVERRIDE env var.
+ * For extension names that are recognized, turn them on. For extension
+ * names that are recognized and prefixed with '-', turn them off.
+ * Return a string of the unknown/leftover names.
+ */
+static const char *
+get_extension_override( GLcontext *ctx )
+{
+ const char *envExt = _mesa_getenv("MESA_EXTENSION_OVERRIDE");
+ char *extraExt = NULL;
+ char ext[1000];
+ GLuint extLen = 0;
+ GLuint i;
+ GLboolean disableExt = GL_FALSE;
+
+ if (!envExt)
+ return NULL;
+
+ for (i = 0; ; i++) {
+ if (envExt[i] == '\0' || envExt[i] == ' ') {
+ /* terminate/process 'ext' if extLen > 0 */
+ if (extLen > 0) {
+ assert(extLen < sizeof(ext));
+ /* enable extension named by 'ext' */
+ ext[extLen] = 0;
+ if (!set_extension(ctx, ext, !disableExt)) {
+ /* unknown extension name, append it to extraExt */
+ if (extraExt) {
+ extraExt = append(extraExt, " ");
+ }
+ extraExt = append(extraExt, ext);
+ }
+ extLen = 0;
+ disableExt = GL_FALSE;
+ }
+ if (envExt[i] == '\0')
+ break;
+ }
+ else if (envExt[i] == '-') {
+ disableExt = GL_TRUE;
+ }
+ else {
+ /* accumulate this non-space character */
+ ext[extLen++] = envExt[i];
+ }
+ }
+
+ return extraExt;
+}
+
+
+/**
* Run through the default_extensions array above and set the
* ctx->Extensions.ARB/EXT_* flags accordingly.
* To be called during context initialization.
@@ -531,8 +640,9 @@ GLubyte *
_mesa_make_extension_string( GLcontext *ctx )
{
const GLboolean *base = (const GLboolean *) &ctx->Extensions;
+ const char *extraExt = get_extension_override(ctx);
GLuint extStrLen = 0;
- GLubyte *s;
+ char *s;
GLuint i;
/* first, compute length of the extension string */
@@ -542,7 +652,14 @@ _mesa_make_extension_string( GLcontext *ctx )
extStrLen += (GLuint)_mesa_strlen(default_extensions[i].name) + 1;
}
}
- s = (GLubyte *) _mesa_malloc(extStrLen);
+
+ if (extraExt)
+ extStrLen += _mesa_strlen(extraExt) + 1; /* +1 for space */
+
+ /* allocate the extension string */
+ s = (char *) _mesa_malloc(extStrLen);
+ if (!s)
+ return NULL;
/* second, build the extension string */
extStrLen = 0;
@@ -552,13 +669,18 @@ _mesa_make_extension_string( GLcontext *ctx )
GLuint len = (GLuint)_mesa_strlen(default_extensions[i].name);
_mesa_memcpy(s + extStrLen, default_extensions[i].name, len);
extStrLen += len;
- s[extStrLen] = (GLubyte) ' ';
+ s[extStrLen] = ' ';
extStrLen++;
}
}
ASSERT(extStrLen > 0);
- s[extStrLen - 1] = 0;
+ s[extStrLen - 1] = 0; /* -1 to overwrite trailing the ' ' */
- return s;
+ if (extraExt) {
+ s = append(s, " ");
+ s = append(s, extraExt);
+ }
+
+ return (GLubyte *) s;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-29 09:39:20 +0000