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mesa: move extensions->version code into separate function

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This commit is contained in:
Brian Paul 2008-07-24 14:47:28 -06:00
parent d8ababdcc2
commit 948f6e302c
1 changed files with 72 additions and 70 deletions
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142
src/mesa/main/getstring.c
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@ -33,6 +33,76 @@
#include "extensions.h"
/**
* Examine enabled GL extensions to determine GL version.
* \return version string
*/
static const char *
compute_version(const GLcontext *ctx)
{
static const char *version_1_2 = "1.2 Mesa " MESA_VERSION_STRING;
static const char *version_1_3 = "1.3 Mesa " MESA_VERSION_STRING;
static const char *version_1_4 = "1.4 Mesa " MESA_VERSION_STRING;
static const char *version_1_5 = "1.5 Mesa " MESA_VERSION_STRING;
static const char *version_2_0 = "2.0 Mesa " MESA_VERSION_STRING;
static const char *version_2_1 = "2.1 Mesa " MESA_VERSION_STRING;
const GLboolean ver_1_3 = (ctx->Extensions.ARB_multisample &&
ctx->Extensions.ARB_multitexture &&
ctx->Extensions.ARB_texture_border_clamp &&
ctx->Extensions.ARB_texture_compression &&
ctx->Extensions.ARB_texture_cube_map &&
ctx->Extensions.EXT_texture_env_add &&
ctx->Extensions.ARB_texture_env_combine &&
ctx->Extensions.ARB_texture_env_dot3);
const GLboolean ver_1_4 = (ver_1_3 &&
ctx->Extensions.ARB_depth_texture &&
ctx->Extensions.ARB_shadow &&
ctx->Extensions.ARB_texture_env_crossbar &&
ctx->Extensions.ARB_texture_mirrored_repeat &&
ctx->Extensions.ARB_window_pos &&
ctx->Extensions.EXT_blend_color &&
ctx->Extensions.EXT_blend_func_separate &&
ctx->Extensions.EXT_blend_minmax &&
ctx->Extensions.EXT_blend_subtract &&
ctx->Extensions.EXT_fog_coord &&
ctx->Extensions.EXT_multi_draw_arrays &&
ctx->Extensions.EXT_point_parameters &&
ctx->Extensions.EXT_secondary_color &&
ctx->Extensions.EXT_stencil_wrap &&
ctx->Extensions.EXT_texture_lod_bias &&
ctx->Extensions.SGIS_generate_mipmap);
const GLboolean ver_1_5 = (ver_1_4 &&
ctx->Extensions.ARB_occlusion_query &&
ctx->Extensions.ARB_vertex_buffer_object &&
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 &&
ctx->Extensions.ARB_fragment_shader &&
ctx->Extensions.ARB_texture_non_power_of_two &&
ctx->Extensions.EXT_blend_equation_separate);
const GLboolean ver_2_1 = (ver_2_0 &&
ctx->Extensions.ARB_shading_language_120 &&
ctx->Extensions.EXT_pixel_buffer_object &&
ctx->Extensions.EXT_texture_sRGB);
if (ver_2_1)
return version_2_1;
if (ver_2_0)
return version_2_0;
if (ver_1_5)
return version_1_5;
if (ver_1_4)
return version_1_4;
if (ver_1_3)
return version_1_3;
return version_1_2;
}
/**
* Query string-valued state. The return value should _not_ be freed by
* the caller.
@ -50,12 +120,6 @@ _mesa_GetString( GLenum name )
GET_CURRENT_CONTEXT(ctx);
static const char *vendor = "Brian Paul";
static const char *renderer = "Mesa";
static const char *version_1_2 = "1.2 Mesa " MESA_VERSION_STRING;
static const char *version_1_3 = "1.3 Mesa " MESA_VERSION_STRING;
static const char *version_1_4 = "1.4 Mesa " MESA_VERSION_STRING;
static const char *version_1_5 = "1.5 Mesa " MESA_VERSION_STRING;
static const char *version_2_0 = "2.0 Mesa " MESA_VERSION_STRING;
static const char *version_2_1 = "2.1 Mesa " MESA_VERSION_STRING;
#if FEATURE_ARB_shading_language_120_foo /* support not complete! */
static const char *sl_version = "1.20";
@ -81,71 +145,9 @@ _mesa_GetString( GLenum name )
case GL_VENDOR:
return (const GLubyte *) vendor;
case GL_RENDERER:
return (const GLubyte *) renderer;
return (const GLubyte *) renderer;
case GL_VERSION:
/* tests for 1.3: */
if (ctx->Extensions.ARB_multisample &&
ctx->Extensions.ARB_multitexture &&
ctx->Extensions.ARB_texture_border_clamp &&
ctx->Extensions.ARB_texture_compression &&
ctx->Extensions.ARB_texture_cube_map &&
ctx->Extensions.EXT_texture_env_add &&
ctx->Extensions.ARB_texture_env_combine &&
ctx->Extensions.ARB_texture_env_dot3) {
/* tests for 1.4: */
if (ctx->Extensions.ARB_depth_texture &&
ctx->Extensions.ARB_shadow &&
ctx->Extensions.ARB_texture_env_crossbar &&
ctx->Extensions.ARB_texture_mirrored_repeat &&
ctx->Extensions.ARB_window_pos &&
ctx->Extensions.EXT_blend_color &&
ctx->Extensions.EXT_blend_func_separate &&
ctx->Extensions.EXT_blend_minmax &&
ctx->Extensions.EXT_blend_subtract &&
ctx->Extensions.EXT_fog_coord &&
ctx->Extensions.EXT_multi_draw_arrays &&
ctx->Extensions.EXT_point_parameters && /*aka ARB*/
ctx->Extensions.EXT_secondary_color &&
ctx->Extensions.EXT_stencil_wrap &&
ctx->Extensions.EXT_texture_lod_bias &&
ctx->Extensions.SGIS_generate_mipmap) {
/* tests for 1.5: */
if (ctx->Extensions.ARB_occlusion_query &&
ctx->Extensions.ARB_vertex_buffer_object &&
ctx->Extensions.EXT_shadow_funcs) {
/* tests for 2.0: */
if (ctx->Extensions.ARB_draw_buffers &&
ctx->Extensions.ARB_point_sprite &&
ctx->Extensions.ARB_shader_objects &&
ctx->Extensions.ARB_vertex_shader &&
ctx->Extensions.ARB_fragment_shader &&
ctx->Extensions.ARB_texture_non_power_of_two &&
ctx->Extensions.EXT_blend_equation_separate) {
/* tests for 2.1: */
if (ctx->Extensions.ARB_shading_language_120 &&
ctx->Extensions.EXT_pixel_buffer_object &&
ctx->Extensions.EXT_texture_sRGB) {
return (const GLubyte *) version_2_1;
}
else {
return (const GLubyte *) version_2_0;
}
}
else {
return (const GLubyte *) version_1_5;
}
}
else {
return (const GLubyte *) version_1_4;
}
}
else {
return (const GLubyte *) version_1_3;
}
}
else {
return (const GLubyte *) version_1_2;
}
return (const GLubyte *) compute_version(ctx);
case GL_EXTENSIONS:
if (!ctx->Extensions.String)
ctx->Extensions.String = _mesa_make_extension_string(ctx);