#include "macros.h"
#include "mtypes.h"
+struct gl_extensions _mesa_extension_override_enables;
+struct gl_extensions _mesa_extension_override_disables;
+static char *extra_extensions = NULL;
+static char *cant_disable_extensions = NULL;
+
enum {
DISABLE = 0,
GLL = 1 << API_OPENGL_COMPAT, /* GL Legacy / Compatibility */
{ "GL_ARB_blend_func_extended", o(ARB_blend_func_extended), GL, 2009 },
{ "GL_ARB_buffer_storage", o(ARB_buffer_storage), GL, 2013 },
{ "GL_ARB_clear_buffer_object", o(dummy_true), GL, 2012 },
+ { "GL_ARB_clear_texture", o(ARB_clear_texture), GL, 2013 },
+ { "GL_ARB_clip_control", o(ARB_clip_control), GL, 2014 },
{ "GL_ARB_color_buffer_float", o(ARB_color_buffer_float), GL, 2004 },
{ "GL_ARB_compressed_texture_pixel_storage", o(dummy_true), GL, 2011 },
{ "GL_ARB_compute_shader", o(ARB_compute_shader), GL, 2012 },
+ { "GL_ARB_conditional_render_inverted", o(ARB_conditional_render_inverted), GL, 2014 },
{ "GL_ARB_copy_buffer", o(dummy_true), GL, 2008 },
+ { "GL_ARB_copy_image", o(ARB_copy_image), GL, 2012 },
{ "GL_ARB_conservative_depth", o(ARB_conservative_depth), GL, 2011 },
{ "GL_ARB_debug_output", o(dummy_true), GL, 2009 },
{ "GL_ARB_depth_buffer_float", o(ARB_depth_buffer_float), GL, 2008 },
{ "GL_ARB_depth_clamp", o(ARB_depth_clamp), GL, 2003 },
{ "GL_ARB_depth_texture", o(ARB_depth_texture), GLL, 2001 },
+ { "GL_ARB_derivative_control", o(ARB_derivative_control), GL, 2014 },
{ "GL_ARB_draw_buffers", o(dummy_true), GL, 2002 },
{ "GL_ARB_draw_buffers_blend", o(ARB_draw_buffers_blend), GL, 2009 },
{ "GL_ARB_draw_elements_base_vertex", o(ARB_draw_elements_base_vertex), GL, 2009 },
{ "GL_ARB_explicit_attrib_location", o(ARB_explicit_attrib_location), GL, 2009 },
{ "GL_ARB_explicit_uniform_location", o(ARB_explicit_uniform_location), GL, 2012 },
{ "GL_ARB_fragment_coord_conventions", o(ARB_fragment_coord_conventions), GL, 2009 },
+ { "GL_ARB_fragment_layer_viewport", o(ARB_fragment_layer_viewport), GLC, 2012 },
{ "GL_ARB_fragment_program", o(ARB_fragment_program), GLL, 2002 },
{ "GL_ARB_fragment_program_shadow", o(ARB_fragment_program_shadow), GLL, 2003 },
{ "GL_ARB_fragment_shader", o(ARB_fragment_shader), GL, 2002 },
{ "GL_ARB_framebuffer_object", o(ARB_framebuffer_object), GL, 2005 },
{ "GL_ARB_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL, 1998 },
{ "GL_ARB_get_program_binary", o(dummy_true), GL, 2010 },
- { "GL_ARB_gpu_shader5", o(ARB_gpu_shader5), GL, 2010 },
+ { "GL_ARB_gpu_shader5", o(ARB_gpu_shader5), GLC, 2010 },
{ "GL_ARB_half_float_pixel", o(dummy_true), GL, 2003 },
{ "GL_ARB_half_float_vertex", o(ARB_half_float_vertex), GL, 2008 },
{ "GL_ARB_instanced_arrays", o(ARB_instanced_arrays), GL, 2008 },
{ "GL_ARB_sample_shading", o(ARB_sample_shading), GL, 2009 },
{ "GL_ARB_sampler_objects", o(dummy_true), GL, 2009 },
{ "GL_ARB_seamless_cube_map", o(ARB_seamless_cube_map), GL, 2009 },
+ { "GL_ARB_seamless_cubemap_per_texture", o(AMD_seamless_cubemap_per_texture), GL, 2013 },
{ "GL_ARB_separate_shader_objects", o(dummy_true), GL, 2010 },
{ "GL_ARB_shader_atomic_counters", o(ARB_shader_atomic_counters), GL, 2011 },
{ "GL_ARB_shader_bit_encoding", o(ARB_shader_bit_encoding), GL, 2010 },
{ "GL_ARB_shadow", o(ARB_shadow), GLL, 2001 },
{ "GL_ARB_stencil_texturing", o(ARB_stencil_texturing), GL, 2012 },
{ "GL_ARB_sync", o(ARB_sync), GL, 2003 },
+ { "GL_ARB_texture_barrier", o(NV_texture_barrier), GL, 2014 },
{ "GL_ARB_texture_border_clamp", o(ARB_texture_border_clamp), GLL, 2000 },
{ "GL_ARB_texture_buffer_object", o(ARB_texture_buffer_object), GLC, 2008 },
{ "GL_ARB_texture_buffer_object_rgb32", o(ARB_texture_buffer_object_rgb32), GLC, 2009 },
{ "GL_ARB_texture_buffer_range", o(ARB_texture_buffer_range), GLC, 2012 },
{ "GL_ARB_texture_compression", o(dummy_true), GLL, 2000 },
+ { "GL_ARB_texture_compression_bptc", o(ARB_texture_compression_bptc), GL, 2010 },
{ "GL_ARB_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL, 2004 },
{ "GL_ARB_texture_cube_map", o(ARB_texture_cube_map), GLL, 1999 },
{ "GL_ARB_texture_cube_map_array", o(ARB_texture_cube_map_array), GL, 2009 },
/* KHR extensions */
{ "GL_KHR_debug", o(dummy_true), GL, 2012 },
+ { "GL_KHR_context_flush_control", o(dummy_true), GL | ES2, 2014 },
/* Vendor extensions */
{ "GL_3DFX_texture_compression_FXT1", o(TDFX_texture_compression_FXT1), GL, 1999 },
{ "GL_AMD_shader_stencil_export", o(ARB_shader_stencil_export), GL, 2009 },
{ "GL_AMD_shader_trinary_minmax", o(dummy_true), GL, 2012 },
{ "GL_AMD_vertex_shader_layer", o(AMD_vertex_shader_layer), GLC, 2012 },
+ { "GL_AMD_vertex_shader_viewport_index", o(AMD_vertex_shader_viewport_index), GLC, 2012 },
{ "GL_APPLE_object_purgeable", o(APPLE_object_purgeable), GL, 2006 },
{ "GL_APPLE_packed_pixels", o(dummy_true), GLL, 2002 },
{ "GL_APPLE_texture_max_level", o(dummy_true), ES1 | ES2, 2009 },
{ "GL_APPLE_vertex_array_object", o(dummy_true), GLL, 2002 },
{ "GL_ATI_blend_equation_separate", o(EXT_blend_equation_separate), GL, 2003 },
{ "GL_ATI_draw_buffers", o(dummy_true), GLL, 2002 },
- { "GL_ATI_envmap_bumpmap", o(ATI_envmap_bumpmap), GLL, 2001 },
{ "GL_ATI_fragment_shader", o(ATI_fragment_shader), GLL, 2001 },
{ "GL_ATI_separate_stencil", o(ATI_separate_stencil), GLL, 2006 },
{ "GL_ATI_texture_compression_3dc", o(ATI_texture_compression_3dc), GL, 2004 },
return 0;
}
+/**
+ * Overrides extensions in \c ctx based on the values in
+ * _mesa_extension_override_enables and _mesa_extension_override_disables.
+ */
+static void
+override_extensions_in_context(struct gl_context *ctx)
+{
+ const struct extension *i;
+ const GLboolean *enables =
+ (GLboolean*) &_mesa_extension_override_enables;
+ const GLboolean *disables =
+ (GLboolean*) &_mesa_extension_override_disables;
+ GLboolean *ctx_ext = (GLboolean*)&ctx->Extensions;
+
+ for (i = extension_table; i->name != 0; ++i) {
+ size_t offset = i->offset;
+ assert(!enables[offset] || !disables[offset]);
+ if (enables[offset]) {
+ ctx_ext[offset] = 1;
+ } else if (disables[offset]) {
+ ctx_ext[offset] = 0;
+ }
+ }
+}
+
/**
* Enable all extensions suitable for a software-only renderer.
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_compression_bptc = 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_vertex_shader = GL_TRUE;
ctx->Extensions.ARB_sync = GL_TRUE;
ctx->Extensions.APPLE_object_purgeable = GL_TRUE;
- ctx->Extensions.ATI_envmap_bumpmap = GL_TRUE;
ctx->Extensions.ATI_fragment_shader = GL_TRUE;
ctx->Extensions.ATI_texture_compression_3dc = GL_TRUE;
ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
/**
* Either enable or disable the named extension.
- * \return GL_TRUE for success, GL_FALSE if invalid extension name
+ * \return offset of extensions withint `ext' or 0 if extension is not known
*/
-static GLboolean
-set_extension( struct gl_context *ctx, const char *name, GLboolean state )
+static size_t
+set_extension(struct gl_extensions *ext, const char *name, GLboolean state)
{
size_t offset;
- 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 GL_FALSE;
- }
-
offset = name_to_offset(name);
- if (offset == 0) {
- _mesa_problem(ctx, "Trying to enable/disable unknown extension %s",
- name);
- return GL_FALSE;
- } else if (offset == o(dummy_true) && state == GL_FALSE) {
- _mesa_problem(ctx, "Trying to disable a permanently enabled extension: "
- "%s", name);
- return GL_FALSE;
- } else {
- GLboolean *base = (GLboolean *) &ctx->Extensions;
- base[offset] = state;
- return GL_TRUE;
+ if (offset != 0 && (offset != o(dummy_true) || state != GL_FALSE)) {
+ ((GLboolean *) ext)[offset] = state;
}
+
+ return offset;
}
/**
* - Enable recognized extension names that are not prefixed.
* - Collect unrecognized extension names in a new string.
*
+ * \c MESA_EXTENSION_OVERRIDE was previously parsed during
+ * _mesa_one_time_init_extension_overrides. We just use the results of that
+ * parsing in this function.
+ *
* \return Space-separated list of unrecognized extension names (which must
* be freed). Does not return \c NULL.
*/
static char *
get_extension_override( struct gl_context *ctx )
{
- const char *env_const = _mesa_getenv("MESA_EXTENSION_OVERRIDE");
+ override_extensions_in_context(ctx);
+
+ if (cant_disable_extensions != NULL) {
+ _mesa_problem(ctx,
+ "Trying to disable permanently enabled extensions: %s",
+ cant_disable_extensions);
+ }
+
+ if (extra_extensions == NULL) {
+ return calloc(1, sizeof(char));
+ } else {
+ _mesa_problem(ctx, "Trying to enable unknown extensions: %s",
+ extra_extensions);
+ return strdup(extra_extensions);
+ }
+}
+
+
+/**
+ * \brief Free extra_extensions and cant_disable_extensions strings
+ *
+ * These strings are allocated early during the first context creation by
+ * _mesa_one_time_init_extension_overrides.
+ */
+static void
+free_unknown_extensions_strings(void)
+{
+ free(extra_extensions);
+ free(cant_disable_extensions);
+}
+
+
+/**
+ * \brief Initialize extension override tables.
+ *
+ * This should be called one time early during first context initialization.
+ */
+void
+_mesa_one_time_init_extension_overrides(void)
+{
+ const char *env_const = getenv("MESA_EXTENSION_OVERRIDE");
char *env;
char *ext;
- char *extra_exts;
int len;
+ size_t offset;
+
+ atexit(free_unknown_extensions_strings);
+
+ memset(&_mesa_extension_override_enables, 0, sizeof(struct gl_extensions));
+ memset(&_mesa_extension_override_disables, 0, sizeof(struct gl_extensions));
if (env_const == NULL) {
- /* Return the empty string rather than NULL. This simplifies the logic
- * of client functions. */
- return calloc(4, sizeof(char));
+ return;
}
/* extra_exts: List of unrecognized extensions. */
- extra_exts = calloc(ALIGN(strlen(env_const) + 2, 4), sizeof(char));
+ extra_extensions = calloc(ALIGN(strlen(env_const) + 2, 4), sizeof(char));
+ cant_disable_extensions = calloc(ALIGN(strlen(env_const) + 2, 4), sizeof(char));
/* Copy env_const because strtok() is destructive. */
env = strdup(env_const);
+
+ if (env == NULL || extra_extensions == NULL ||
+ cant_disable_extensions == NULL) {
+ free(env);
+ free(extra_extensions);
+ free(cant_disable_extensions);
+ return;
+ }
+
for (ext = strtok(env, " "); ext != NULL; ext = strtok(NULL, " ")) {
int enable;
- int recognized;
+ bool recognized;
switch (ext[0]) {
case '+':
enable = 1;
enable = 1;
break;
}
- recognized = set_extension(ctx, ext, enable);
- if (!recognized && enable) {
- strcat(extra_exts, ext);
- strcat(extra_exts, " ");
+
+ offset = set_extension(&_mesa_extension_override_enables, ext, enable);
+ if (offset != 0 && (offset != o(dummy_true) || enable != GL_FALSE)) {
+ ((GLboolean *) &_mesa_extension_override_disables)[offset] = !enable;
+ recognized = true;
+ } else {
+ recognized = false;
+ }
+
+ if (!recognized) {
+ if (enable) {
+ strcat(extra_extensions, ext);
+ strcat(extra_extensions, " ");
+ } else if (offset == o(dummy_true)) {
+ strcat(cant_disable_extensions, ext);
+ strcat(cant_disable_extensions, " ");
+ }
}
}
free(env);
- /* Remove trailing space. */
- len = strlen(extra_exts);
- if (len > 0 && extra_exts[len - 1] == ' ')
- extra_exts[len - 1] = '\0';
-
- return extra_exts;
+ /* Remove trailing space, and free if unused. */
+ len = strlen(extra_extensions);
+ if (len == 0) {
+ free(extra_extensions);
+ extra_extensions = NULL;
+ } else if (extra_extensions[len - 1] == ' ') {
+ extra_extensions[len - 1] = '\0';
+ }
+ len = strlen(cant_disable_extensions);
+ if (len == 0) {
+ free(cant_disable_extensions);
+ cant_disable_extensions = NULL;
+ } else if (cant_disable_extensions[len - 1] == ' ') {
+ cant_disable_extensions[len - 1] = '\0';
+ }
}
* Note: Sets gl_extensions.dummy_true to true.
*/
void
-_mesa_init_extensions( struct gl_context *ctx )
+_mesa_init_extensions(struct gl_extensions *extensions)
{
- GLboolean *base = (GLboolean *) &ctx->Extensions;
+ GLboolean *base = (GLboolean *) extensions;
GLboolean *sentinel = base + o(extension_sentinel);
GLboolean *i;
*i = GL_FALSE;
/* Then, selectively turn default extensions on. */
- ctx->Extensions.dummy_true = GL_TRUE;
- ctx->Extensions.EXT_texture3D = GL_TRUE;
+ extensions->dummy_true = GL_TRUE;
+ extensions->EXT_texture3D = GL_TRUE;
}