| /* |
| * Mesa 3-D graphics library |
| * Version: 7.1 |
| * |
| * Copyright (C) 1999-2008 Brian Paul 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 |
| * BRIAN PAUL 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 "glheader.h" |
| #include "colormac.h" |
| #include "context.h" |
| #include "get.h" |
| #include "version.h" |
| #include "enums.h" |
| #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. |
| * |
| * \param name the state variable to query. |
| * |
| * \sa glGetString(). |
| * |
| * Tries to get the string from dd_function_table::GetString, otherwise returns |
| * the hardcoded strings. |
| */ |
| const GLubyte * GLAPIENTRY |
| _mesa_GetString( GLenum name ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| static const char *vendor = "Brian Paul"; |
| static const char *renderer = "Mesa"; |
| |
| if (!ctx) |
| return NULL; |
| |
| ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL); |
| |
| /* this is a required driver function */ |
| assert(ctx->Driver.GetString); |
| { |
| /* Give the driver the chance to handle this query */ |
| const GLubyte *str = (*ctx->Driver.GetString)(ctx, name); |
| if (str) |
| return str; |
| } |
| |
| switch (name) { |
| case GL_VENDOR: |
| return (const GLubyte *) vendor; |
| case GL_RENDERER: |
| return (const GLubyte *) renderer; |
| case GL_VERSION: |
| return (const GLubyte *) compute_version(ctx); |
| case GL_EXTENSIONS: |
| if (!ctx->Extensions.String) |
| ctx->Extensions.String = _mesa_make_extension_string(ctx); |
| return (const GLubyte *) ctx->Extensions.String; |
| #if FEATURE_ARB_shading_language_100 |
| case GL_SHADING_LANGUAGE_VERSION_ARB: |
| if (ctx->Extensions.ARB_shading_language_120) |
| return (const GLubyte *) "1.20"; |
| else if (ctx->Extensions.ARB_shading_language_100) |
| return (const GLubyte *) "1.10"; |
| goto error; |
| #endif |
| #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program || \ |
| FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program |
| case GL_PROGRAM_ERROR_STRING_NV: |
| if (ctx->Extensions.NV_fragment_program || |
| ctx->Extensions.ARB_fragment_program || |
| ctx->Extensions.NV_vertex_program || |
| ctx->Extensions.ARB_vertex_program) { |
| return (const GLubyte *) ctx->Program.ErrorString; |
| } |
| /* FALL-THROUGH */ |
| #endif |
| #if FEATURE_ARB_shading_language_100 |
| error: |
| #endif |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetString" ); |
| return (const GLubyte *) 0; |
| } |
| } |
| |
| |
| /** |
| * Return pointer-valued state, such as a vertex array pointer. |
| * |
| * \param pname names state to be queried |
| * \param params returns the pointer value |
| * |
| * \sa glGetPointerv(). |
| * |
| * Tries to get the specified pointer via dd_function_table::GetPointerv, |
| * otherwise gets the specified pointer from the current context. |
| */ |
| void GLAPIENTRY |
| _mesa_GetPointerv( GLenum pname, GLvoid **params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| const GLuint clientUnit = ctx->Array.ActiveTexture; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (!params) |
| return; |
| |
| if (MESA_VERBOSE & VERBOSE_API) |
| _mesa_debug(ctx, "glGetPointerv %s\n", _mesa_lookup_enum_by_nr(pname)); |
| |
| if (ctx->Driver.GetPointerv |
| && (*ctx->Driver.GetPointerv)(ctx, pname, params)) |
| return; |
| |
| switch (pname) { |
| case GL_VERTEX_ARRAY_POINTER: |
| *params = (GLvoid *) ctx->Array.ArrayObj->Vertex.Ptr; |
| break; |
| case GL_NORMAL_ARRAY_POINTER: |
| *params = (GLvoid *) ctx->Array.ArrayObj->Normal.Ptr; |
| break; |
| case GL_COLOR_ARRAY_POINTER: |
| *params = (GLvoid *) ctx->Array.ArrayObj->Color.Ptr; |
| break; |
| case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT: |
| *params = (GLvoid *) ctx->Array.ArrayObj->SecondaryColor.Ptr; |
| break; |
| case GL_FOG_COORDINATE_ARRAY_POINTER_EXT: |
| *params = (GLvoid *) ctx->Array.ArrayObj->FogCoord.Ptr; |
| break; |
| case GL_INDEX_ARRAY_POINTER: |
| *params = (GLvoid *) ctx->Array.ArrayObj->Index.Ptr; |
| break; |
| case GL_TEXTURE_COORD_ARRAY_POINTER: |
| *params = (GLvoid *) ctx->Array.ArrayObj->TexCoord[clientUnit].Ptr; |
| break; |
| case GL_EDGE_FLAG_ARRAY_POINTER: |
| *params = (GLvoid *) ctx->Array.ArrayObj->EdgeFlag.Ptr; |
| break; |
| case GL_FEEDBACK_BUFFER_POINTER: |
| *params = ctx->Feedback.Buffer; |
| break; |
| case GL_SELECTION_BUFFER_POINTER: |
| *params = ctx->Select.Buffer; |
| break; |
| #if FEATURE_MESA_program_debug |
| case GL_FRAGMENT_PROGRAM_CALLBACK_FUNC_MESA: |
| if (!ctx->Extensions.MESA_program_debug) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetPointerv"); |
| return; |
| } |
| *params = *(GLvoid **) &ctx->FragmentProgram.Callback; |
| break; |
| case GL_FRAGMENT_PROGRAM_CALLBACK_DATA_MESA: |
| if (!ctx->Extensions.MESA_program_debug) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetPointerv"); |
| return; |
| } |
| *params = ctx->FragmentProgram.CallbackData; |
| break; |
| case GL_VERTEX_PROGRAM_CALLBACK_FUNC_MESA: |
| if (!ctx->Extensions.MESA_program_debug) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetPointerv"); |
| return; |
| } |
| *params = *(GLvoid **) &ctx->VertexProgram.Callback; |
| break; |
| case GL_VERTEX_PROGRAM_CALLBACK_DATA_MESA: |
| if (!ctx->Extensions.MESA_program_debug) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetPointerv"); |
| return; |
| } |
| *params = ctx->VertexProgram.CallbackData; |
| break; |
| #endif |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetPointerv" ); |
| return; |
| } |
| } |
| |
| |
| /** |
| * Returns the current GL error code, or GL_NO_ERROR. |
| * \return current error code |
| * |
| * Returns __GLcontextRec::ErrorValue. |
| */ |
| GLenum GLAPIENTRY |
| _mesa_GetError( void ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLenum e = ctx->ErrorValue; |
| ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); |
| |
| if (MESA_VERBOSE & VERBOSE_API) |
| _mesa_debug(ctx, "glGetError <-- %s\n", _mesa_lookup_enum_by_nr(e)); |
| |
| ctx->ErrorValue = (GLenum) GL_NO_ERROR; |
| return e; |
| } |
