| 0,0 → 1,284 |
|---|
| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 2010 VMware, Inc. 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 |
| * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| |
| #include "context.h" |
| #include "version.h" |
| |
| |
| |
| /** |
| * Examine enabled GL extensions to determine GL version. |
| * Return major and minor version numbers. |
| */ |
| static void |
| compute_version(struct gl_context *ctx) |
| { |
| GLuint major, minor; |
| static const int max = 100; |
| |
| 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 && |
| |
| /* Technically, 2.0 requires the functionality |
| * of the EXT version. Enable 2.0 if either |
| * extension is available, and assume that a |
| * driver that only exposes the ATI extension |
| * will fallback to software when necessary. |
| */ |
| (ctx->Extensions.EXT_stencil_two_side |
| || ctx->Extensions.ATI_separate_stencil)); |
| const GLboolean ver_2_1 = (ver_2_0 && |
| ctx->Const.GLSLVersion >= 120 && |
| ctx->Extensions.EXT_pixel_buffer_object && |
| ctx->Extensions.EXT_texture_sRGB); |
| const GLboolean ver_3_0 = (ver_2_1 && |
| ctx->Extensions.ARB_half_float_pixel && |
| ctx->Extensions.ARB_map_buffer_range && |
| ctx->Extensions.ARB_texture_float && |
| ctx->Extensions.ARB_texture_rg && |
| ctx->Extensions.ARB_texture_compression_rgtc && |
| ctx->Extensions.APPLE_vertex_array_object && |
| ctx->Extensions.EXT_draw_buffers2 && |
| ctx->Extensions.EXT_framebuffer_blit && |
| ctx->Extensions.EXT_framebuffer_multisample && |
| ctx->Extensions.EXT_framebuffer_object && |
| ctx->Extensions.EXT_framebuffer_sRGB && |
| ctx->Extensions.EXT_packed_depth_stencil && |
| ctx->Extensions.EXT_packed_float && |
| ctx->Extensions.EXT_texture_array && |
| ctx->Extensions.EXT_texture_integer && |
| ctx->Extensions.EXT_texture_shared_exponent && |
| ctx->Extensions.EXT_transform_feedback && |
| ctx->Extensions.NV_conditional_render); |
| const GLboolean ver_3_1 = (ver_3_0 && |
| ctx->Extensions.ARB_copy_buffer && |
| ctx->Extensions.ARB_draw_instanced && |
| ctx->Extensions.ARB_texture_buffer_object && |
| ctx->Extensions.ARB_uniform_buffer_object && |
| ctx->Extensions.NV_primitive_restart && |
| ctx->Extensions.NV_texture_rectangle && |
| ctx->Const.MaxVertexTextureImageUnits >= 16); |
| const GLboolean ver_3_2 = (ver_3_1 && |
| ctx->Extensions.ARB_depth_clamp && |
| ctx->Extensions.ARB_draw_elements_base_vertex && |
| ctx->Extensions.ARB_fragment_coord_conventions && |
| ctx->Extensions.ARB_geometry_shader4 && |
| ctx->Extensions.EXT_provoking_vertex && |
| ctx->Extensions.ARB_seamless_cube_map && |
| ctx->Extensions.ARB_sync && |
| ctx->Extensions.ARB_texture_multisample && |
| ctx->Extensions.EXT_vertex_array_bgra); |
| const GLboolean ver_3_3 = (ver_3_2 && |
| ctx->Extensions.ARB_blend_func_extended && |
| ctx->Extensions.ARB_explicit_attrib_location && |
| ctx->Extensions.ARB_instanced_arrays && |
| ctx->Extensions.ARB_occlusion_query2 && |
| ctx->Extensions.ARB_sampler_objects && |
| ctx->Extensions.ARB_texture_rgb10_a2ui && |
| ctx->Extensions.ARB_timer_query && |
| ctx->Extensions.ARB_vertex_type_2_10_10_10_rev && |
| ctx->Extensions.EXT_texture_swizzle); |
| |
| if (ver_3_3) { |
| major = 3; |
| minor = 3; |
| } |
| else if (ver_3_2) { |
| major = 3; |
| minor = 2; |
| } |
| else if (ver_3_1) { |
| major = 3; |
| minor = 1; |
| } |
| else if (ver_3_0) { |
| major = 3; |
| minor = 0; |
| } |
| else if (ver_2_1) { |
| major = 2; |
| minor = 1; |
| } |
| else if (ver_2_0) { |
| major = 2; |
| minor = 0; |
| } |
| else if (ver_1_5) { |
| major = 1; |
| minor = 5; |
| } |
| else if (ver_1_4) { |
| major = 1; |
| minor = 4; |
| } |
| else if (ver_1_3) { |
| major = 1; |
| minor = 3; |
| } |
| else { |
| major = 1; |
| minor = 2; |
| } |
| |
| ctx->VersionMajor = major; |
| ctx->VersionMinor = minor; |
| ctx->VersionString = (char *) malloc(max); |
| if (ctx->VersionString) { |
| _mesa_snprintf(ctx->VersionString, max, |
| "%u.%u Mesa " MESA_VERSION_STRING, |
| ctx->VersionMajor, ctx->VersionMinor); |
| } |
| } |
| |
| static void |
| compute_version_es1(struct gl_context *ctx) |
| { |
| static const int max = 100; |
| |
| /* OpenGL ES 1.0 is derived from OpenGL 1.3 */ |
| const GLboolean ver_1_0 = (ctx->Extensions.ARB_multisample && |
| ctx->Extensions.ARB_multitexture && |
| ctx->Extensions.ARB_texture_compression && |
| ctx->Extensions.EXT_texture_env_add && |
| ctx->Extensions.ARB_texture_env_combine && |
| ctx->Extensions.ARB_texture_env_dot3); |
| /* OpenGL ES 1.1 is derived from OpenGL 1.5 */ |
| const GLboolean ver_1_1 = (ver_1_0 && |
| ctx->Extensions.EXT_point_parameters && |
| ctx->Extensions.SGIS_generate_mipmap && |
| ctx->Extensions.ARB_vertex_buffer_object); |
| |
| if (ver_1_1) { |
| ctx->VersionMajor = 1; |
| ctx->VersionMinor = 1; |
| } else if (ver_1_0) { |
| ctx->VersionMajor = 1; |
| ctx->VersionMinor = 0; |
| } else { |
| _mesa_problem(ctx, "Incomplete OpenGL ES 1.0 support."); |
| } |
| |
| ctx->VersionString = (char *) malloc(max); |
| if (ctx->VersionString) { |
| _mesa_snprintf(ctx->VersionString, max, |
| "OpenGL ES-CM 1.%d Mesa " MESA_VERSION_STRING, |
| ctx->VersionMinor); |
| } |
| } |
| |
| static void |
| compute_version_es2(struct gl_context *ctx) |
| { |
| static const int max = 100; |
| |
| /* OpenGL ES 2.0 is derived from OpenGL 2.0 */ |
| const GLboolean ver_2_0 = (ctx->Extensions.ARB_multisample && |
| ctx->Extensions.ARB_multitexture && |
| ctx->Extensions.ARB_texture_compression && |
| ctx->Extensions.ARB_texture_cube_map && |
| ctx->Extensions.ARB_texture_mirrored_repeat && |
| ctx->Extensions.EXT_blend_color && |
| ctx->Extensions.EXT_blend_func_separate && |
| ctx->Extensions.EXT_blend_minmax && |
| ctx->Extensions.EXT_blend_subtract && |
| ctx->Extensions.EXT_stencil_wrap && |
| ctx->Extensions.ARB_vertex_buffer_object && |
| 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); |
| if (ver_2_0) { |
| ctx->VersionMajor = 2; |
| ctx->VersionMinor = 0; |
| } else { |
| _mesa_problem(ctx, "Incomplete OpenGL ES 2.0 support."); |
| } |
| |
| ctx->VersionString = (char *) malloc(max); |
| if (ctx->VersionString) { |
| _mesa_snprintf(ctx->VersionString, max, |
| "OpenGL ES 2.0 Mesa " MESA_VERSION_STRING); |
| } |
| } |
| |
| /** |
| * Set the context's VersionMajor, VersionMinor, VersionString fields. |
| * This should only be called once as part of context initialization |
| * or to perform version check for GLX_ARB_create_context_profile. |
| */ |
| void |
| _mesa_compute_version(struct gl_context *ctx) |
| { |
| if (ctx->VersionMajor) |
| return; |
| |
| switch (ctx->API) { |
| case API_OPENGL: |
| compute_version(ctx); |
| break; |
| case API_OPENGLES: |
| compute_version_es1(ctx); |
| break; |
| case API_OPENGLES2: |
| compute_version_es2(ctx); |
| break; |
| } |
| |
| } |