#include "mtypes.h"
-#define MAX_EXT_NAMELEN 80
-
-struct extension {
- struct extension *next, *prev;
- GLint enabled;
- GLboolean *flag; /* optional flag stored elsewhere */
- char name[MAX_EXT_NAMELEN+1];
- void (*notify)( GLcontext *, GLboolean );
-};
-
#define F(x) (int)&(((struct gl_extensions *)0)->x)
#define ON GL_TRUE
#define OFF GL_FALSE
+
static const struct {
GLboolean enabled;
const char *name;
{ 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", 0 },
+ { OFF, "GL_MESA_packed_depth_stencil", F(MESA_packed_depth_stencil) },
{ 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) },
-
-/*
+/**
* 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)
{
- const char *extensions[] = {
- "GL_ARB_depth_texture",
+ ctx->Extensions.ARB_depth_texture = GL_TRUE;
#if FEATURE_ARB_fragment_program
- "GL_ARB_fragment_program",
+ /*ctx->Extensions.ARB_fragment_program = GL_TRUE;*/
#endif
- "GL_ARB_imaging",
- "GL_ARB_multitexture",
+ ctx->Extensions.ARB_imaging = GL_TRUE;
+ ctx->Extensions.ARB_multitexture = GL_TRUE;
#if FEATURE_ARB_occlusion_query
- "GL_ARB_occlusion_query",
+ ctx->Extensions.ARB_occlusion_query = GL_TRUE;
#endif
- "GL_ARB_point_parameters",
- "GL_ARB_shadow",
- "GL_ARB_shadow_ambient",
- "GL_ARB_texture_border_clamp",
- "GL_ARB_texture_cube_map",
- "GL_ARB_texture_env_add",
- "GL_ARB_texture_env_combine",
- "GL_ARB_texture_env_crossbar",
- "GL_ARB_texture_env_dot3",
- "GL_ARB_texture_mirrored_repeat",
+ 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;
#if FEATURE_ARB_vertex_program
- "GL_ARB_vertex_program",
+ /*ctx->Extensions.ARB_vertex_program = GL_TRUE;*/
#endif
- "GL_ATI_texture_env_combine3",
- "GL_ATI_texture_mirror_once",
- "GL_EXT_blend_color",
- "GL_EXT_blend_func_separate",
- "GL_EXT_blend_logic_op",
- "GL_EXT_blend_minmax",
- "GL_EXT_blend_subtract",
- "GL_EXT_convolution",
- "GL_EXT_depth_bounds_test",
- "GL_EXT_fog_coord",
- "GL_EXT_histogram",
- "GL_EXT_paletted_texture",
- "GL_EXT_point_parameters",
- "GL_EXT_shadow_funcs",
- "GL_EXT_secondary_color",
- "GL_EXT_shared_texture_palette",
- "GL_EXT_stencil_wrap",
- "GL_EXT_stencil_two_side",
- "GL_EXT_texture_edge_clamp",
- "GL_EXT_texture_env_add",
- "GL_EXT_texture_env_combine",
- "GL_EXT_texture_env_dot3",
- "GL_EXT_texture_lod_bias",
- "GL_EXT_texture_rectangle",
- "GL_HP_occlusion_test",
- "GL_IBM_texture_mirrored_repeat",
- "GL_INGR_blend_func_separate",
- "GL_MESA_pack_invert",
- "GL_MESA_resize_buffers",
- "GL_MESA_ycbcr_texture",
- "GL_NV_blend_square",
- "GL_NV_light_max_exponent",
- "GL_NV_point_sprite",
- "GL_NV_texture_rectangle",
- "GL_NV_texgen_reflection",
+ 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_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_lod_bias = GL_TRUE;
+ ctx->Extensions.HP_occlusion_test = GL_TRUE;
+ ctx->Extensions.MESA_pack_invert = GL_TRUE;
+ 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
- "GL_NV_vertex_program",
- "GL_NV_vertex_program1_1",
+ ctx->Extensions.NV_vertex_program = GL_TRUE;
+ ctx->Extensions.NV_vertex_program1_1 = GL_TRUE;
#endif
#if FEATURE_NV_fragment_program
- "GL_NV_fragment_program",
+ ctx->Extensions.NV_fragment_program = GL_TRUE;
#endif
- "GL_SGI_color_matrix",
- "GL_SGI_color_table",
- "GL_SGI_texture_color_table",
- "GL_SGIS_generate_mipmap",
- "GL_SGIS_pixel_texture",
- "GL_SGIS_texture_edge_clamp",
- "GL_SGIS_texture_border_clamp",
- "GL_SGIX_depth_texture",
- "GL_SGIX_pixel_texture",
- "GL_SGIX_shadow",
- "GL_SGIX_shadow_ambient",
- NULL
- };
- GLuint i;
-
- for (i = 0; extensions[i]; i++) {
- _mesa_enable_extension(ctx, extensions[i]);
- }
+ 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;
}
-/*
+/**
* Enable GL_ARB_imaging and all the EXT extensions that are subsets of it.
*/
void
_mesa_enable_imaging_extensions(GLcontext *ctx)
{
- const char *extensions[] = {
- "GL_ARB_imaging",
- "GL_EXT_blend_color",
- "GL_EXT_blend_minmax",
- "GL_EXT_blend_subtract",
- "GL_EXT_convolution",
- "GL_EXT_histogram",
- "GL_SGI_color_matrix",
- "GL_SGI_color_table",
- NULL
- };
- GLuint i;
-
- for (i = 0; extensions[i]; i++) {
- _mesa_enable_extension(ctx, extensions[i]);
- }
+ 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;
}
-/*
+/**
* Enable all OpenGL 1.3 features and extensions.
+ * A convenience function to be called by drivers.
*/
void
_mesa_enable_1_3_extensions(GLcontext *ctx)
{
- const char *extensions[] = {
- "GL_ARB_multisample",
- "GL_ARB_multitexture",
- "GL_ARB_texture_border_clamp",
- "GL_ARB_texture_compression",
- "GL_ARB_texture_cube_map",
- "GL_ARB_texture_env_add",
- "GL_ARB_texture_env_combine",
- "GL_ARB_texture_env_dot3",
- "GL_ARB_transpose_matrix",
- NULL
- };
- GLuint i;
-
- for (i = 0; extensions[i]; i++) {
- _mesa_enable_extension(ctx, extensions[i]);
- }
+ 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;*/
}
-/*
+/**
* Enable all OpenGL 1.4 features and extensions.
+ * A convenience function to be called by drivers.
*/
void
_mesa_enable_1_4_extensions(GLcontext *ctx)
{
- const char *extensions[] = {
- "GL_ARB_depth_texture",
- "GL_ARB_point_parameters",
- "GL_ARB_shadow",
- "GL_ARB_texture_env_crossbar",
- "GL_ARB_texture_mirrored_repeat",
- "GL_ARB_window_pos",
- "GL_EXT_blend_color",
- "GL_EXT_blend_func_separate",
- "GL_EXT_blend_logic_op",
- "GL_EXT_blend_minmax",
- "GL_EXT_blend_subtract",
- "GL_EXT_fog_coord",
- "GL_EXT_multi_draw_arrays",
- "GL_EXT_secondary_color",
- "GL_EXT_stencil_wrap",
- "GL_SGIS_generate_mipmap",
- NULL
- };
- GLuint i;
-
- for (i = 0; extensions[i]; i++) {
- _mesa_enable_extension(ctx, extensions[i]);
- }
+ ctx->Extensions.ARB_depth_texture = 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_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.SGIS_generate_mipmap = GL_TRUE;
}
-
-/*
- * Add a new extenstion. This would be called from a Mesa driver.
+/**
+ * Enable all OpenGL 1.5 features and extensions.
+ * A convenience function to be called by drivers.
+ * XXX TENTATIVE!!!
*/
void
-_mesa_add_extension( GLcontext *ctx,
- GLboolean enabled,
- const char *name,
- GLboolean *flag_ptr )
+_mesa_enable_1_5_extensions(GLcontext *ctx)
{
- /* We should never try to add an extension after
- * _mesa_extensions_get_string() has been called!
- */
- assert(ctx->Extensions.ext_string == 0);
-
- {
- struct extension *t = MALLOC_STRUCT(extension);
- t->enabled = enabled;
- _mesa_strncpy(t->name, name, MAX_EXT_NAMELEN);
- t->name[MAX_EXT_NAMELEN] = 0;
- t->flag = flag_ptr;
- if (t->flag)
- *t->flag = enabled;
- insert_at_tail( ctx->Extensions.ext_list, t );
- }
+ ctx->Extensions.ARB_occlusion_query = GL_TRUE;
+ ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;
}
-/*
+/**
* Either enable or disable the named extension.
*/
static void
-set_extension( GLcontext *ctx, const char *name, GLint state )
+set_extension( GLcontext *ctx, const char *name, GLboolean state )
{
- /* XXX we should assert that ext_string is null. We should never be
- * enabling/disabling extensions after _mesa_extensions_get_string()
- * has been called!
- */
- struct extension *i;
- foreach( i, ctx->Extensions.ext_list )
- if (_mesa_strncmp(i->name, name, MAX_EXT_NAMELEN) == 0)
- break;
-
- if (i == ctx->Extensions.ext_list) {
- /* this is an error. Drivers should never try to enable/disable
- * an extension which is unknown to Mesa or wasn't added by calling
- * _mesa_add_extension().
- */
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ GLuint i;
+
+ 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;
}
- if (i->flag)
- *(i->flag) = state;
- i->enabled = state;
+ 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);
}
-
+/**
+ * Enable the named extension.
+ * Typically called by drivers.
+ */
void
_mesa_enable_extension( GLcontext *ctx, const char *name )
{
- if (ctx->Extensions.ext_string == 0)
- set_extension( ctx, name, 1 );
+ set_extension(ctx, name, GL_TRUE);
}
+/**
+ * Disable the named extension.
+ * XXX is this really needed???
+ */
void
_mesa_disable_extension( GLcontext *ctx, const char *name )
{
- if (ctx->Extensions.ext_string == 0)
- set_extension( ctx, name, 0 );
+ set_extension(ctx, name, GL_FALSE);
}
-/*
+/**
* Test if the named extension is enabled in this context.
*/
GLboolean
-_mesa_extension_is_enabled( GLcontext *ctx, const char *name)
+_mesa_extension_is_enabled( GLcontext *ctx, const char *name )
{
- struct extension *i;
- foreach( i, ctx->Extensions.ext_list )
- if (_mesa_strncmp(i->name, name, MAX_EXT_NAMELEN) == 0) {
- if (i->enabled)
+ const GLboolean *base = (const GLboolean *) &ctx->Extensions;
+ GLuint i;
+
+ for (i = 0 ; i < Elements(default_extensions) ; i++) {
+ if (_mesa_strcmp(default_extensions[i].name, name) == 0) {
+ if (!default_extensions[i].flag_offset)
return GL_TRUE;
- else
- return GL_FALSE;
+ return *(base + default_extensions[i].flag_offset);
}
-
+ }
return GL_FALSE;
}
+/**
+ * Run through the default_extensions array above and set the
+ * ctx->Extensions.ARB/EXT_* flags accordingly.
+ * To be called during context initialization.
+ */
void
-_mesa_extensions_dtr( GLcontext *ctx )
+_mesa_init_extensions( GLcontext *ctx )
{
- struct extension *i, *nexti;
-
- if (ctx->Extensions.ext_string) {
- FREE( ctx->Extensions.ext_string );
- ctx->Extensions.ext_string = 0;
- }
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ GLuint i;
- if (ctx->Extensions.ext_list) {
- foreach_s( i, nexti, ctx->Extensions.ext_list ) {
- remove_from_list( i );
- FREE( 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;
}
-
- FREE(ctx->Extensions.ext_list);
- ctx->Extensions.ext_list = 0;
}
}
-void
-_mesa_extensions_ctr( GLcontext *ctx )
+/**
+ * Construct the GL_EXTENSIONS string. Called the first time that
+ * glGetString(GL_EXTENSIONS) is called.
+ */
+GLubyte *
+_mesa_make_extension_string( GLcontext *ctx )
{
+ const GLboolean *base = (const GLboolean *) &ctx->Extensions;
+ GLuint extStrLen = 0;
+ GLubyte *s;
GLuint i;
- GLboolean *base = (GLboolean *)&ctx->Extensions;
-
- ctx->Extensions.ext_string = NULL;
- ctx->Extensions.ext_list = MALLOC_STRUCT(extension);
- make_empty_list( ctx->Extensions.ext_list );
+ /* first, compute length of the extension string */
for (i = 0 ; i < Elements(default_extensions) ; i++) {
- GLboolean *ptr = NULL;
-
- if (default_extensions[i].flag_offset)
- ptr = base + default_extensions[i].flag_offset;
-
- (void) _mesa_add_extension( ctx,
- default_extensions[i].enabled,
- default_extensions[i].name,
- ptr);
+ if (!default_extensions[i].flag_offset ||
+ *(base + default_extensions[i].flag_offset)) {
+ extStrLen += _mesa_strlen(default_extensions[i].name) + 1;
+ }
}
-}
+ s = _mesa_malloc(extStrLen);
-
-const char *
-_mesa_extensions_get_string( 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 += _mesa_strlen(i->name) + 1;
-
- if (len == 0)
- return "";
-
- str = (char *) _mesa_malloc(len * sizeof(char));
- ctx->Extensions.ext_string = str;
-
- foreach (i, ctx->Extensions.ext_list)
- if (i->enabled) {
- _mesa_strcpy(str, i->name);
- str += _mesa_strlen(str);
- *str++ = ' ';
- }
-
- *(str-1) = 0;
+ /* 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 ctx->Extensions.ext_string;
+ return s;
}
projects / mesa.git / commitdiff