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mesa: Remove ARB_draw_buffers extension enable flag

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All drivers in Mesa have supported this extension for eons.  This
extension is an optional features in desktop OpenGL (via
GL_ARB_draw_buffers) and OpenGL ES 2.x (via GL_NV_draw_buffers).

The extension is not usable in OpenGL ES 1.x.  There is no
glDrawBuffers* entry point in OpenGL ES 1.x contexts, and glGet*v
generate errors when MAX_DRAW_BUFFERS or DRAW_BUFFERi is queried.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Ian Romanick
2011-10-02 15:22:18 -07:00
parent a92f02d04a
commit 763b00f2c5
7 changed files with 3 additions and 15 deletions
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1
src/glsl/standalone_scaffolding.cpp
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@@ -67,7 +67,6 @@ void initialize_context_to_defaults(struct gl_context *ctx, gl_api api)
ctx->Extensions.dummy_false = false;
ctx->Extensions.dummy_true = true;
ctx->Extensions.ARB_ES2_compatibility = true;
ctx->Extensions.ARB_draw_buffers = true;
ctx->Extensions.ARB_draw_instanced = true;
ctx->Extensions.ARB_fragment_coord_conventions = true;
ctx->Extensions.EXT_texture_array = true;

1
src/mesa/drivers/dri/intel/intel_extensions_es.c
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@@ -32,7 +32,6 @@
static const char *common_extensions[] = {
/* Used by mesa internally (cf all_mesa_extensions in ../common/utils.c) */
"GL_ARB_draw_buffers",
"GL_ARB_transpose_matrix",
"GL_ARB_window_pos",
"GL_EXT_blend_func_separate",

1
src/mesa/drivers/dri/swrast/swrast.c
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@@ -577,7 +577,6 @@ swrast_init_driver_functions(struct dd_function_table *driver)
static const char *es2_extensions[] = {
/* Used by mesa internally (cf all_mesa_extensions in ../common/utils.c) */
"GL_ARB_draw_buffers",
"GL_ARB_transpose_matrix",
"GL_ARB_window_pos",
"GL_EXT_blend_func_separate",

9
src/mesa/main/extensions.c
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@@ -85,7 +85,7 @@ static const struct extension extension_table[] = {
{ "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), GL, 2001 },
{ "GL_ARB_draw_buffers", o(ARB_draw_buffers), GL, 2002 },
{ "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_draw_instanced", o(ARB_draw_instanced), GL, 2008 },
@@ -263,7 +263,7 @@ static const struct extension extension_table[] = {
{ "GL_APPLE_packed_pixels", o(APPLE_packed_pixels), GL, 2002 },
{ "GL_APPLE_vertex_array_object", o(APPLE_vertex_array_object), GL, 2002 },
{ "GL_ATI_blend_equation_separate", o(EXT_blend_equation_separate), GL, 2003 },
{ "GL_ATI_draw_buffers", o(ARB_draw_buffers), GL, 2002 },
{ "GL_ATI_draw_buffers", o(dummy_true), GL, 2002 },
{ "GL_ATI_envmap_bumpmap", o(ATI_envmap_bumpmap), GL, 2001 },
{ "GL_ATI_fragment_shader", o(ATI_fragment_shader), GL, 2001 },
{ "GL_ATI_separate_stencil", o(ATI_separate_stencil), GL, 2006 },
@@ -284,7 +284,7 @@ static const struct extension extension_table[] = {
{ "GL_NV_blend_square", o(NV_blend_square), GL, 1999 },
{ "GL_NV_conditional_render", o(NV_conditional_render), GL, 2008 },
{ "GL_NV_depth_clamp", o(ARB_depth_clamp), GL, 2001 },
{ "GL_NV_draw_buffers", o(ARB_draw_buffers), ES2, 2011 },
{ "GL_NV_draw_buffers", o(dummy_true), ES2, 2011 },
{ "GL_NV_fbo_color_attachments", o(EXT_framebuffer_object), ES2, 2010 },
{ "GL_NV_fragment_program", o(NV_fragment_program), GL, 2001 },
{ "GL_NV_fragment_program_option", o(NV_fragment_program_option), GL, 2005 },
@@ -343,7 +343,6 @@ name_to_offset(const char* name)
*/
static const size_t default_extensions[] = {
o(ARB_copy_buffer),
o(ARB_draw_buffers),
o(ARB_transpose_matrix),
o(ARB_window_pos),
@@ -378,7 +377,6 @@ _mesa_enable_sw_extensions(struct gl_context *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_elements_base_vertex = GL_TRUE;
ctx->Extensions.ARB_draw_instanced = GL_TRUE;
ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;
@@ -577,7 +575,6 @@ _mesa_enable_1_5_extensions(struct gl_context *ctx)
void
_mesa_enable_2_0_extensions(struct gl_context *ctx)
{
/*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
#if FEATURE_ARB_fragment_shader
ctx->Extensions.ARB_fragment_shader = GL_TRUE;
#endif

1
src/mesa/main/mtypes.h
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@@ -2749,7 +2749,6 @@ struct gl_extensions
GLboolean ARB_depth_buffer_float;
GLboolean ARB_depth_clamp;
GLboolean ARB_depth_texture;
GLboolean ARB_draw_buffers;
GLboolean ARB_draw_buffers_blend;
GLboolean ARB_draw_elements_base_vertex;
GLboolean ARB_draw_instanced;

1
src/mesa/main/version.c
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@@ -104,7 +104,6 @@ compute_version(struct gl_context *ctx)
ctx->Extensions.ARB_occlusion_query &&
ctx->Extensions.EXT_shadow_funcs);
const GLboolean ver_2_0 = (ver_1_5 &&
ctx->Extensions.ARB_draw_buffers &&
ctx->Extensions.ARB_point_sprite &&
ctx->Extensions.ARB_shader_objects &&
ctx->Extensions.ARB_vertex_shader &&

4
src/mesa/state_tracker/st_extensions.c
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@@ -307,10 +307,6 @@ void st_init_extensions(struct st_context *st)
/*
* Extensions that depend on the driver/hardware:
*/
if (screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS) > 0) {
ctx->Extensions.ARB_draw_buffers = GL_TRUE;
}
if (screen->get_param(screen, PIPE_CAP_TEXTURE_SWIZZLE) > 0) {
ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
}