-/* $Id: extensions.c,v 1.12 1999/11/12 02:05:46 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 3.3
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
+ * Version: 5.1
+ *
+ * Copyright (C) 1999-2003 Brian Paul 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"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
- *
+ *
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
- *
+ *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
*/
-#ifdef PC_HEADER
-#include "all.h"
-#else
#include "glheader.h"
+#include "imports.h"
#include "context.h"
#include "extensions.h"
-#include "mem.h"
#include "simple_list.h"
-#include "types.h"
-#endif
-
-
-#define MAX_EXT_NAMELEN 80
-
-struct extension {
- struct extension *next, *prev;
- int enabled;
- char name[MAX_EXT_NAMELEN+1];
- void (*notify)( GLcontext *, GLboolean );
+#include "mtypes.h"
+
+
+#define F(x) (int)(unsigned long)&(((struct gl_extensions *)0)->x)
+#define ON GL_TRUE
+#define OFF GL_FALSE
+
+
+static const struct {
+ GLboolean enabled;
+ const char *name;
+ int flag_offset;
+} default_extensions[] = {
+ { OFF, "GL_ARB_depth_texture", F(ARB_depth_texture) },
+ { OFF, "GL_ARB_fragment_program", F(ARB_fragment_program) },
+ { OFF, "GL_ARB_imaging", F(ARB_imaging) },
+ { OFF, "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_point_parameters", F(EXT_point_parameters) },
+ { OFF, "GL_ARB_point_sprite", F(ARB_point_sprite) },
+ { OFF, "GL_ARB_shadow", F(ARB_shadow) },
+ { OFF, "GL_ARB_shadow_ambient", F(SGIX_shadow_ambient) },
+ { OFF, "GL_ARB_texture_border_clamp", F(ARB_texture_border_clamp) },
+ { OFF, "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) },
+ { OFF, "GL_ARB_texture_env_crossbar", F(ARB_texture_env_crossbar) },
+ { OFF, "GL_ARB_texture_env_dot3", F(ARB_texture_env_dot3) },
+ { OFF, "GL_ARB_texture_mirrored_repeat", F(ARB_texture_mirrored_repeat)},
+ { OFF, "GL_ARB_texture_non_power_of_two", F(ARB_texture_non_power_of_two)},
+ { ON, "GL_ARB_transpose_matrix", 0 },
+ { OFF, "GL_ARB_vertex_buffer_object", F(ARB_vertex_buffer_object) },
+ { OFF, "GL_ARB_vertex_program", F(ARB_vertex_program) },
+ { ON, "GL_ARB_window_pos", F(ARB_window_pos) },
+ { ON, "GL_EXT_abgr", 0 },
+ { ON, "GL_EXT_bgra", 0 },
+ { OFF, "GL_EXT_blend_color", F(EXT_blend_color) },
+ { OFF, "GL_EXT_blend_func_separate", F(EXT_blend_func_separate) },
+ { 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", 0 },
+ { ON, "GL_EXT_compiled_vertex_array", F(EXT_compiled_vertex_array) },
+ { OFF, "GL_EXT_convolution", F(EXT_convolution) },
+ { ON, "GL_EXT_copy_texture", 0 },
+ { OFF, "GL_EXT_depth_bounds_test", F(EXT_depth_bounds_test) },
+ { ON, "GL_EXT_draw_range_elements", 0 },
+ { OFF, "GL_EXT_fog_coord", F(EXT_fog_coord) },
+ { OFF, "GL_EXT_histogram", F(EXT_histogram) },
+ { OFF, "GL_EXT_multi_draw_arrays", F(EXT_multi_draw_arrays) },
+ { ON, "GL_EXT_packed_pixels", 0 },
+ { OFF, "GL_EXT_paletted_texture", F(EXT_paletted_texture) },
+ { OFF, "GL_EXT_point_parameters", F(EXT_point_parameters) },
+ { ON, "GL_EXT_polygon_offset", 0 },
+ { ON, "GL_EXT_rescale_normal", 0 },
+ { OFF, "GL_EXT_secondary_color", F(EXT_secondary_color) },
+ { ON, "GL_EXT_separate_specular_color", 0 },
+ { OFF, "GL_EXT_shadow_funcs", F(EXT_shadow_funcs) },
+ { OFF, "GL_EXT_shared_texture_palette", F(EXT_shared_texture_palette) },
+ { OFF, "GL_EXT_stencil_two_side", F(EXT_stencil_two_side) },
+ { OFF, "GL_EXT_stencil_wrap", F(EXT_stencil_wrap) },
+ { ON, "GL_EXT_subtexture", 0 },
+ { ON, "GL_EXT_texture", 0 },
+ { ON, "GL_EXT_texture3D", F(EXT_texture3D) },
+ { OFF, "GL_EXT_texture_compression_s3tc", F(EXT_texture_compression_s3tc) },
+ { ON, "GL_EXT_texture_edge_clamp", F(SGIS_texture_edge_clamp) },
+ { OFF, "GL_EXT_texture_env_add", F(EXT_texture_env_add) },
+ { OFF, "GL_EXT_texture_env_combine", F(EXT_texture_env_combine) },
+ { OFF, "GL_EXT_texture_env_dot3", F(EXT_texture_env_dot3) },
+ { OFF, "GL_EXT_texture_filter_anisotropic", F(EXT_texture_filter_anisotropic) },
+ { OFF, "GL_EXT_texture_lod_bias", F(EXT_texture_lod_bias) },
+ { OFF, "GL_EXT_texture_mirror_clamp", F(EXT_texture_mirror_clamp) },
+ { ON, "GL_EXT_texture_object", 0 },
+ { OFF, "GL_EXT_texture_rectangle", F(NV_texture_rectangle) },
+ { ON, "GL_EXT_vertex_array", 0 },
+ { 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", 0 },
+ { OFF, "GL_ATI_texture_env_combine3", F(ATI_texture_env_combine3)},
+ { OFF, "GL_ATI_texture_mirror_once", F(ATI_texture_mirror_once)},
+ { OFF, "GL_HP_occlusion_test", F(HP_occlusion_test) },
+ { OFF, "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_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_fragment_program", F(NV_fragment_program) },
+ { ON, "GL_NV_light_max_exponent", 0 },
+ { OFF, "GL_NV_point_sprite", F(NV_point_sprite) },
+ { OFF, "GL_NV_texture_rectangle", F(NV_texture_rectangle) },
+ { ON, "GL_NV_texgen_reflection", 0 },
+ { OFF, "GL_NV_vertex_program", F(NV_vertex_program) },
+ { OFF, "GL_NV_vertex_program1_1", F(NV_vertex_program1_1) },
+ { OFF, "GL_SGI_color_matrix", F(SGI_color_matrix) },
+ { OFF, "GL_SGI_color_table", F(SGI_color_table) },
+ { OFF, "GL_SGI_texture_color_table", F(SGI_texture_color_table) },
+ { OFF, "GL_SGIS_generate_mipmap", F(SGIS_generate_mipmap) },
+ { OFF, "GL_SGIS_pixel_texture", F(SGIS_pixel_texture) },
+ { 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", 0 },
+ { OFF, "GL_SGIX_depth_texture", F(SGIX_depth_texture) },
+ { OFF, "GL_SGIX_pixel_texture", F(SGIX_pixel_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) },
+ { OFF, "GL_S3_s3tc", F(S3_s3tc) },
};
-static struct { int enabled; const char *name; } default_extensions[] = {
- { ALWAYS_ENABLED, "GL_EXT_blend_color" },
- { DEFAULT_OFF, "ARB_imaging" },
- { DEFAULT_ON, "GL_EXT_blend_minmax" },
- { DEFAULT_ON, "GL_EXT_blend_logic_op" },
- { DEFAULT_ON, "GL_EXT_blend_subtract" },
- { DEFAULT_ON, "GL_EXT_paletted_texture" },
- { DEFAULT_ON, "GL_EXT_point_parameters" },
- { ALWAYS_ENABLED, "GL_EXT_polygon_offset" },
- { ALWAYS_ENABLED, "GL_EXT_vertex_array" },
- { ALWAYS_ENABLED, "GL_EXT_texture_object" },
- { DEFAULT_ON, "GL_EXT_texture3D" },
- { ALWAYS_ENABLED, "GL_MESA_window_pos" },
- { ALWAYS_ENABLED, "GL_MESA_resize_buffers" },
- { ALWAYS_ENABLED, "GL_EXT_shared_texture_palette" },
- { ALWAYS_ENABLED, "GL_EXT_rescale_normal" },
- { ALWAYS_ENABLED, "GL_EXT_abgr" },
- { ALWAYS_ENABLED, "GL_SGIS_texture_edge_clamp" },
- { ALWAYS_ENABLED, "GL_EXT_stencil_wrap" },
- { DEFAULT_ON, "GL_INGR_blend_func_separate" },
- { DEFAULT_ON, "GL_ARB_multitexture" },
- { ALWAYS_ENABLED, "GL_NV_texgen_reflection" },
- { DEFAULT_ON, "GL_PGI_misc_hints" },
- { DEFAULT_ON, "GL_EXT_compiled_vertex_array" },
- { DEFAULT_OFF, "GL_EXT_vertex_array_set" },
- { DEFAULT_ON, "GL_EXT_clip_volume_hint" },
-};
-
-
-int gl_extensions_add( GLcontext *ctx,
- int state,
- const char *name,
- void (*notify)(void) )
+/**
+ * Enable all extensions suitable for a software-only renderer.
+ * This is a convenience function used by the XMesa, OSMesa, GGI drivers, etc.
+ */
+void
+_mesa_enable_sw_extensions(GLcontext *ctx)
{
- (void) notify;
-
- if (ctx->Extensions.ext_string == 0)
- {
- struct extension *t = MALLOC_STRUCT(extension);
- t->enabled = state;
- strncpy(t->name, name, MAX_EXT_NAMELEN);
- t->name[MAX_EXT_NAMELEN] = 0;
- t->notify = (void (*)(GLcontext *, GLboolean)) notify;
- insert_at_tail( ctx->Extensions.ext_list, t );
- return 0;
- }
- return 1;
+ ctx->Extensions.ARB_depth_texture = GL_TRUE;
+#if FEATURE_ARB_fragment_program
+ /*ctx->Extensions.ARB_fragment_program = GL_TRUE;*/
+#endif
+ ctx->Extensions.ARB_imaging = GL_TRUE;
+ ctx->Extensions.ARB_multitexture = GL_TRUE;
+#if FEATURE_ARB_occlusion_query
+ ctx->Extensions.ARB_occlusion_query = GL_TRUE;
+#endif
+ ctx->Extensions.ARB_point_sprite = GL_TRUE;
+ ctx->Extensions.ARB_shadow = 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;
+ ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
+ ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
+ ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
+#if FEATURE_ARB_vertex_program
+ /*ctx->Extensions.ARB_vertex_program = GL_TRUE;*/
+#endif
+#if FEATURE_ARB_vertex_buffer_object
+ ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;
+#endif
+ ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
+ ctx->Extensions.ATI_texture_mirror_once = GL_TRUE;
+ ctx->Extensions.EXT_blend_color = GL_TRUE;
+ ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
+ ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
+ ctx->Extensions.EXT_blend_minmax = GL_TRUE;
+ ctx->Extensions.EXT_blend_subtract = GL_TRUE;
+ ctx->Extensions.EXT_convolution = GL_TRUE;
+ ctx->Extensions.EXT_depth_bounds_test = GL_TRUE;
+ ctx->Extensions.EXT_fog_coord = GL_TRUE;
+ ctx->Extensions.EXT_histogram = GL_TRUE;
+ ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;
+ ctx->Extensions.EXT_paletted_texture = GL_TRUE;
+ ctx->Extensions.EXT_point_parameters = 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_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;
+ ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE;
+ ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
+ ctx->Extensions.HP_occlusion_test = 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_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_rectangle = GL_TRUE;
+ /*ctx->Extensions.NV_texgen_reflection = GL_TRUE;*/
+#if FEATURE_NV_vertex_program
+ ctx->Extensions.NV_vertex_program = GL_TRUE;
+ ctx->Extensions.NV_vertex_program1_1 = GL_TRUE;
+#endif
+#if FEATURE_NV_fragment_program
+ ctx->Extensions.NV_fragment_program = GL_TRUE;
+#endif
+ ctx->Extensions.SGI_color_matrix = GL_TRUE;
+ ctx->Extensions.SGI_color_table = GL_TRUE;
+ ctx->Extensions.SGI_texture_color_table = GL_TRUE;
+ ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
+ ctx->Extensions.SGIS_pixel_texture = GL_TRUE;
+ ctx->Extensions.SGIS_texture_edge_clamp = GL_TRUE;
+ ctx->Extensions.SGIX_depth_texture = GL_TRUE;
+ ctx->Extensions.SGIX_pixel_texture = GL_TRUE;
+ ctx->Extensions.SGIX_shadow = GL_TRUE;
+ ctx->Extensions.SGIX_shadow_ambient = GL_TRUE;
}
-static int set_extension( GLcontext *ctx, const char *name, GLuint state )
+/**
+ * Enable GL_ARB_imaging and all the EXT extensions that are subsets of it.
+ */
+void
+_mesa_enable_imaging_extensions(GLcontext *ctx)
{
- struct extension *i;
- foreach( i, ctx->Extensions.ext_list )
- if (strncmp(i->name, name, MAX_EXT_NAMELEN) == 0)
- break;
+ ctx->Extensions.ARB_imaging = GL_TRUE;
+ ctx->Extensions.EXT_blend_color = GL_TRUE;
+ ctx->Extensions.EXT_blend_minmax = GL_TRUE;
+ ctx->Extensions.EXT_blend_subtract = GL_TRUE;
+ ctx->Extensions.EXT_convolution = GL_TRUE;
+ ctx->Extensions.EXT_histogram = GL_TRUE;
+ ctx->Extensions.SGI_color_matrix = GL_TRUE;
+ ctx->Extensions.SGI_color_table = GL_TRUE;
+}
- if (i == ctx->Extensions.ext_list) return 1;
- if (i->enabled && !(i->enabled & ALWAYS_ENABLED))
- {
- if (i->notify) i->notify( ctx, state );
- i->enabled = state;
- }
- return 0;
-}
+/**
+ * Enable all OpenGL 1.3 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_1_3_extensions(GLcontext *ctx)
+{
+ 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_cube_map = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_add = GL_TRUE;
+ /*ctx->Extensions.ARB_transpose_matrix = GL_TRUE;*/
+}
+
-int gl_extensions_enable( GLcontext *ctx, const char *name )
+/**
+ * Enable all OpenGL 1.4 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_1_4_extensions(GLcontext *ctx)
{
- if (ctx->Extensions.ext_string == 0)
- return set_extension( ctx, name, 1 );
- return 1;
+ ctx->Extensions.ARB_depth_texture = GL_TRUE;
+ ctx->Extensions.ARB_fragment_program = GL_TRUE;
+ ctx->Extensions.ARB_shadow = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
+ ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
+ ctx->Extensions.ARB_vertex_program = GL_TRUE;
+ ctx->Extensions.ARB_window_pos = GL_TRUE;
+ ctx->Extensions.EXT_blend_color = GL_TRUE;
+ ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
+ ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
+ 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_point_parameters = GL_TRUE;
+ ctx->Extensions.EXT_secondary_color = GL_TRUE;
+ ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
+ ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
+ ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
}
-int gl_extensions_disable( GLcontext *ctx, const char *name )
+/**
+ * Enable all OpenGL 1.5 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_1_5_extensions(GLcontext *ctx)
{
- if (ctx->Extensions.ext_string == 0)
- return set_extension( ctx, name, 0 );
- return 1;
+ ctx->Extensions.ARB_occlusion_query = GL_TRUE;
+ ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;
+ ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
+ ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
}
-
-/*
- * Test if the named extension is enabled in this context.
+
+/**
+ * Either enable or disable the named extension.
*/
-GLboolean gl_extension_is_enabled( GLcontext *ctx, const char *name)
+static void
+set_extension( GLcontext *ctx, const char *name, GLboolean state )
{
- struct extension *i;
- foreach( i, ctx->Extensions.ext_list )
- if (strncmp(i->name, name, MAX_EXT_NAMELEN) == 0) {
- if (i->enabled)
- return GL_TRUE;
- else
- return GL_FALSE;
- }
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ GLuint i;
- return GL_FALSE;
+ 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;
+ }
+
+ for (i = 0 ; i < Elements(default_extensions) ; i++) {
+ if (_mesa_strcmp(default_extensions[i].name, name) == 0) {
+ if (default_extensions[i].flag_offset) {
+ GLboolean *enabled = base + default_extensions[i].flag_offset;
+ *enabled = state;
+ }
+ return;
+ }
+ }
+ _mesa_problem(ctx, "Trying to enable unknown extension: %s", name);
}
-void gl_extensions_dtr( GLcontext *ctx )
+/**
+ * Enable the named extension.
+ * Typically called by drivers.
+ */
+void
+_mesa_enable_extension( GLcontext *ctx, const char *name )
{
- struct extension *i, *nexti;
+ set_extension(ctx, name, GL_TRUE);
+}
- if (ctx->Extensions.ext_string) {
- FREE( ctx->Extensions.ext_string );
- ctx->Extensions.ext_string = 0;
- }
- if (ctx->Extensions.ext_list) {
- foreach_s( i, nexti, ctx->Extensions.ext_list ) {
- remove_from_list( i );
- FREE( i );
- }
-
- FREE(ctx->Extensions.ext_list);
- ctx->Extensions.ext_list = 0;
- }
+/**
+ * Disable the named extension.
+ * XXX is this really needed???
+ */
+void
+_mesa_disable_extension( GLcontext *ctx, const char *name )
+{
+ set_extension(ctx, name, GL_FALSE);
}
-void gl_extensions_ctr( GLcontext *ctx )
+/**
+ * Test if the named extension is enabled in this context.
+ */
+GLboolean
+_mesa_extension_is_enabled( GLcontext *ctx, const char *name )
{
+ const GLboolean *base = (const GLboolean *) &ctx->Extensions;
GLuint i;
- ctx->Extensions.ext_string = 0;
- ctx->Extensions.ext_list = MALLOC_STRUCT(extension);
- make_empty_list( ctx->Extensions.ext_list );
-
for (i = 0 ; i < Elements(default_extensions) ; i++) {
- gl_extensions_add( ctx,
- default_extensions[i].enabled,
- default_extensions[i].name,
- 0 );
+ if (_mesa_strcmp(default_extensions[i].name, name) == 0) {
+ if (!default_extensions[i].flag_offset)
+ return GL_TRUE;
+ return *(base + default_extensions[i].flag_offset);
+ }
}
+ return GL_FALSE;
}
-const char *gl_extensions_get_string( GLcontext *ctx )
+/**
+ * Run through the default_extensions array above and set the
+ * ctx->Extensions.ARB/EXT_* flags accordingly.
+ * To be called during context initialization.
+ */
+void
+_mesa_init_extensions( GLcontext *ctx )
{
- if (ctx->Extensions.ext_string == 0)
- {
- struct extension *i;
- char *str;
- GLuint len = 0;
- foreach (i, ctx->Extensions.ext_list)
- if (i->enabled)
- len += strlen(i->name) + 1;
-
- if (len == 0)
- return "";
-
- str = (char *)MALLOC(len * sizeof(char));
- ctx->Extensions.ext_string = str;
-
- foreach (i, ctx->Extensions.ext_list)
- if (i->enabled) {
- strcpy(str, i->name);
- str += strlen(str);
- *str++ = ' ';
- }
-
- *(str-1) = 0;
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ GLuint i;
+
+ for (i = 0 ; i < Elements(default_extensions) ; i++) {
+ if (default_extensions[i].enabled &&
+ default_extensions[i].flag_offset) {
+ *(base + default_extensions[i].flag_offset) = GL_TRUE;
+ }
}
-
- return ctx->Extensions.ext_string;
}
-
-/*
- * Return the address of an extension function.
- * This is meant to be called by glXGetProcAddress(), wglGetProcAddress(),
- * or similar function.
- * NOTE: this function could be optimized to binary search a sorted
- * list of function names.
+/**
+ * Construct the GL_EXTENSIONS string. Called the first time that
+ * glGetString(GL_EXTENSIONS) is called.
*/
-void (*gl_get_proc_address( const GLubyte *procName ))()
+GLubyte *
+_mesa_make_extension_string( GLcontext *ctx )
{
- typedef void (*gl_function)();
- struct proc {
- const char *name;
- gl_function address;
- };
- static struct proc procTable[] = {
- /* OpenGL 1.1 functions */
- { "glEnableClientState", (gl_function) glEnableClientState },
- { "glDisableClientState", (gl_function) glDisableClientState },
- { "glPushClientAttrib", (gl_function) glPushClientAttrib },
- { "glPopClientAttrib", (gl_function) glPopClientAttrib },
- { "glIndexub", (gl_function) glIndexub },
- { "glIndexubv", (gl_function) glIndexubv },
- { "glVertexPointer", (gl_function) glVertexPointer },
- { "glNormalPointer", (gl_function) glNormalPointer },
- { "glColorPointer", (gl_function) glColorPointer },
- { "glIndexPointer", (gl_function) glIndexPointer },
- { "glTexCoordPointer", (gl_function) glTexCoordPointer },
- { "glEdgeFlagPointer", (gl_function) glEdgeFlagPointer },
- { "glGetPointerv", (gl_function) glGetPointerv },
- { "glArrayElement", (gl_function) glArrayElement },
- { "glDrawArrays", (gl_function) glDrawArrays },
- { "glDrawElements", (gl_function) glDrawElements },
- { "glInterleavedArrays", (gl_function) glInterleavedArrays },
- { "glGenTextures", (gl_function) glGenTextures },
- { "glDeleteTextures", (gl_function) glDeleteTextures },
- { "glBindTexture", (gl_function) glBindTexture },
- { "glPrioritizeTextures", (gl_function) glPrioritizeTextures },
- { "glAreTexturesResident", (gl_function) glAreTexturesResident },
- { "glIsTexture", (gl_function) glIsTexture },
- { "glTexSubImage1D", (gl_function) glTexSubImage1D },
- { "glTexSubImage2D", (gl_function) glTexSubImage2D },
- { "glCopyTexImage1D", (gl_function) glCopyTexImage1D },
- { "glCopyTexImage2D", (gl_function) glCopyTexImage2D },
- { "glCopyTexSubImage1D", (gl_function) glCopyTexSubImage1D },
- { "glCopyTexSubImage2D", (gl_function) glCopyTexSubImage2D },
-
- /* OpenGL 1.2 functions */
- { "glDrawRangeElements", (gl_function) glDrawRangeElements },
- { "glTexImage3D", (gl_function) glTexImage3D },
- { "glTexSubImage3D", (gl_function) glTexSubImage3D },
- { "glCopyTexSubImage3D", (gl_function) glCopyTexSubImage3D },
- /* NOTE: 1.2 imaging subset functions not implemented in Mesa */
-
- /* GL_EXT_blend_minmax */
- { "glBlendEquationEXT", (gl_function) glBlendEquationEXT },
-
- /* GL_EXT_blend_color */
- { "glBlendColorEXT", (gl_function) glBlendColorEXT },
-
- /* GL_EXT_polygon_offset */
- { "glPolygonOffsetEXT", (gl_function) glPolygonOffsetEXT },
-
- /* GL_EXT_vertex_arrays */
- { "glVertexPointerEXT", (gl_function) glVertexPointerEXT },
- { "glNormalPointerEXT", (gl_function) glNormalPointerEXT },
- { "glColorPointerEXT", (gl_function) glColorPointerEXT },
- { "glIndexPointerEXT", (gl_function) glIndexPointerEXT },
- { "glTexCoordPointerEXT", (gl_function) glTexCoordPointerEXT },
- { "glEdgeFlagPointerEXT", (gl_function) glEdgeFlagPointerEXT },
- { "glGetPointervEXT", (gl_function) glGetPointervEXT },
- { "glArrayElementEXT", (gl_function) glArrayElementEXT },
- { "glDrawArraysEXT", (gl_function) glDrawArraysEXT },
-
- /* GL_EXT_texture_object */
- { "glGenTexturesEXT", (gl_function) glGenTexturesEXT },
- { "glDeleteTexturesEXT", (gl_function) glDeleteTexturesEXT },
- { "glBindTextureEXT", (gl_function) glBindTextureEXT },
- { "glPrioritizeTexturesEXT", (gl_function) glPrioritizeTexturesEXT },
- { "glAreTexturesResidentEXT", (gl_function) glAreTexturesResidentEXT },
- { "glIsTextureEXT", (gl_function) glIsTextureEXT },
-
- /* GL_EXT_texture3D */
- { "glTexImage3DEXT", (gl_function) glTexImage3DEXT },
- { "glTexSubImage3DEXT", (gl_function) glTexSubImage3DEXT },
- { "glCopyTexSubImage3DEXT", (gl_function) glCopyTexSubImage3DEXT },
-
- /* GL_EXT_color_table */
- { "glColorTableEXT", (gl_function) glColorTableEXT },
- { "glColorSubTableEXT", (gl_function) glColorSubTableEXT },
- { "glGetColorTableEXT", (gl_function) glGetColorTableEXT },
- { "glGetColorTableParameterfvEXT", (gl_function) glGetColorTableParameterfvEXT },
- { "glGetColorTableParameterivEXT", (gl_function) glGetColorTableParameterivEXT },
-
- /* GL_ARB_multitexture */
- { "glActiveTextureARB", (gl_function) glActiveTextureARB },
- { "glClientActiveTextureARB", (gl_function) glClientActiveTextureARB },
- { "glMultiTexCoord1dARB", (gl_function) glMultiTexCoord1dARB },
- { "glMultiTexCoord1dvARB", (gl_function) glMultiTexCoord1dvARB },
- { "glMultiTexCoord1fARB", (gl_function) glMultiTexCoord1fARB },
- { "glMultiTexCoord1fvARB", (gl_function) glMultiTexCoord1fvARB },
- { "glMultiTexCoord1iARB", (gl_function) glMultiTexCoord1iARB },
- { "glMultiTexCoord1ivARB", (gl_function) glMultiTexCoord1ivARB },
- { "glMultiTexCoord1sARB", (gl_function) glMultiTexCoord1sARB },
- { "glMultiTexCoord1svARB", (gl_function) glMultiTexCoord1svARB },
- { "glMultiTexCoord2dARB", (gl_function) glMultiTexCoord2dARB },
- { "glMultiTexCoord2dvARB", (gl_function) glMultiTexCoord2dvARB },
- { "glMultiTexCoord2fARB", (gl_function) glMultiTexCoord2fARB },
- { "glMultiTexCoord2fvARB", (gl_function) glMultiTexCoord2fvARB },
- { "glMultiTexCoord2iARB", (gl_function) glMultiTexCoord2iARB },
- { "glMultiTexCoord2ivARB", (gl_function) glMultiTexCoord2ivARB },
- { "glMultiTexCoord2sARB", (gl_function) glMultiTexCoord2sARB },
- { "glMultiTexCoord2svARB", (gl_function) glMultiTexCoord2svARB },
- { "glMultiTexCoord3dARB", (gl_function) glMultiTexCoord3dARB },
- { "glMultiTexCoord3dvARB", (gl_function) glMultiTexCoord3dvARB },
- { "glMultiTexCoord3fARB", (gl_function) glMultiTexCoord3fARB },
- { "glMultiTexCoord3fvARB", (gl_function) glMultiTexCoord3fvARB },
- { "glMultiTexCoord3iARB", (gl_function) glMultiTexCoord3iARB },
- { "glMultiTexCoord3ivARB", (gl_function) glMultiTexCoord3ivARB },
- { "glMultiTexCoord3sARB", (gl_function) glMultiTexCoord3sARB },
- { "glMultiTexCoord3svARB", (gl_function) glMultiTexCoord3svARB },
- { "glMultiTexCoord4dARB", (gl_function) glMultiTexCoord4dARB },
- { "glMultiTexCoord4dvARB", (gl_function) glMultiTexCoord4dvARB },
- { "glMultiTexCoord4fARB", (gl_function) glMultiTexCoord4fARB },
- { "glMultiTexCoord4fvARB", (gl_function) glMultiTexCoord4fvARB },
- { "glMultiTexCoord4iARB", (gl_function) glMultiTexCoord4iARB },
- { "glMultiTexCoord4ivARB", (gl_function) glMultiTexCoord4ivARB },
- { "glMultiTexCoord4sARB", (gl_function) glMultiTexCoord4sARB },
- { "glMultiTexCoord4svARB", (gl_function) glMultiTexCoord4svARB },
-
- /* GL_EXT_point_parameters */
- { "glPointParameterfEXT", (gl_function) glPointParameterfEXT },
- { "glPointParameterfvEXT", (gl_function) glPointParameterfvEXT },
-
- /* GL_INGR_blend_func_separate */
- { "glBlendFuncSeparateINGR", (gl_function) glBlendFuncSeparateINGR },
-
- /* GL_MESA_window_pos */
- { "glWindowPos2iMESA", (gl_function) glWindowPos2iMESA },
- { "glWindowPos2sMESA", (gl_function) glWindowPos2sMESA },
- { "glWindowPos2fMESA", (gl_function) glWindowPos2fMESA },
- { "glWindowPos2dMESA", (gl_function) glWindowPos2dMESA },
- { "glWindowPos2ivMESA", (gl_function) glWindowPos2ivMESA },
- { "glWindowPos2svMESA", (gl_function) glWindowPos2svMESA },
- { "glWindowPos2fvMESA", (gl_function) glWindowPos2fvMESA },
- { "glWindowPos2dvMESA", (gl_function) glWindowPos2dvMESA },
- { "glWindowPos3iMESA", (gl_function) glWindowPos3iMESA },
- { "glWindowPos3sMESA", (gl_function) glWindowPos3sMESA },
- { "glWindowPos3fMESA", (gl_function) glWindowPos3fMESA },
- { "glWindowPos3dMESA", (gl_function) glWindowPos3dMESA },
- { "glWindowPos3ivMESA", (gl_function) glWindowPos3ivMESA },
- { "glWindowPos3svMESA", (gl_function) glWindowPos3svMESA },
- { "glWindowPos3fvMESA", (gl_function) glWindowPos3fvMESA },
- { "glWindowPos3dvMESA", (gl_function) glWindowPos3dvMESA },
- { "glWindowPos4iMESA", (gl_function) glWindowPos4iMESA },
- { "glWindowPos4sMESA", (gl_function) glWindowPos4sMESA },
- { "glWindowPos4fMESA", (gl_function) glWindowPos4fMESA },
- { "glWindowPos4dMESA", (gl_function) glWindowPos4dMESA },
- { "glWindowPos4ivMESA", (gl_function) glWindowPos4ivMESA },
- { "glWindowPos4svMESA", (gl_function) glWindowPos4svMESA },
- { "glWindowPos4fvMESA", (gl_function) glWindowPos4fvMESA },
- { "glWindowPos4dvMESA", (gl_function) glWindowPos4dvMESA },
-
- /* GL_MESA_resize_buffers */
- { "glResizeBuffersMESA", (gl_function) glResizeBuffersMESA },
-
- /* GL_EXT_compiled_vertex_array */
- { "glLockArraysEXT", (gl_function) glLockArraysEXT },
- { "glUnlockArraysEXT", (gl_function) glUnlockArraysEXT },
-
- { NULL, NULL } /* end of list token */
- };
+ const GLboolean *base = (const GLboolean *) &ctx->Extensions;
+ GLuint extStrLen = 0;
+ GLubyte *s;
GLuint i;
- for (i = 0; procTable[i].address; i++) {
- if (strcmp((const char *) procName, procTable[i].name) == 0)
- return procTable[i].address;
+ /* first, compute length of the extension string */
+ for (i = 0 ; i < Elements(default_extensions) ; i++) {
+ if (!default_extensions[i].flag_offset ||
+ *(base + default_extensions[i].flag_offset)) {
+ extStrLen += _mesa_strlen(default_extensions[i].name) + 1;
+ }
+ }
+ s = (GLubyte *) _mesa_malloc(extStrLen);
+
+ /* second, build the extension string */
+ extStrLen = 0;
+ for (i = 0 ; i < Elements(default_extensions) ; i++) {
+ if (!default_extensions[i].flag_offset ||
+ *(base + default_extensions[i].flag_offset)) {
+ GLuint len = _mesa_strlen(default_extensions[i].name);
+ _mesa_memcpy(s + extStrLen, default_extensions[i].name, len);
+ extStrLen += len;
+ s[extStrLen] = (GLubyte) ' ';
+ extStrLen++;
+ }
}
+ ASSERT(extStrLen > 0);
+
+ s[extStrLen - 1] = 0;
- return NULL;
+ return s;
}
projects / mesa.git / blobdiff