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/* |
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* Mesa 3-D graphics library |
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* Version: 6.3 |
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* |
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* Copyright (C) 1999-2005 Brian Paul All Rights Reserved. |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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*/ |
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#include "glheader.h" |
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#include "colormac.h" |
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#include "context.h" |
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#include "get.h" |
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#include "version.h" |
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#include "enums.h" |
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#include "extensions.h" |
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/** |
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* Query string-valued state. The return value should _not_ be freed by |
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* the caller. |
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* |
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* \param name the state variable to query. |
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* |
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* \sa glGetString(). |
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* |
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* Tries to get the string from dd_function_table::GetString, otherwise returns |
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* the hardcoded strings. |
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*/ |
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const GLubyte * GLAPIENTRY |
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_mesa_GetString( GLenum name ) |
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{ |
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GET_CURRENT_CONTEXT(ctx); |
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static const char *vendor = "Brian Paul"; |
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static const char *renderer = "Mesa"; |
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static const char *version_1_2 = "1.2 Mesa " MESA_VERSION_STRING; |
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static const char *version_1_3 = "1.3 Mesa " MESA_VERSION_STRING; |
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static const char *version_1_4 = "1.4 Mesa " MESA_VERSION_STRING; |
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static const char *version_1_5 = "1.5 Mesa " MESA_VERSION_STRING; |
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static const char *version_2_0 = "1.5 Mesa " MESA_VERSION_STRING;/*XXX FIX*/ |
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ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); |
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/* this is a required driver function */ |
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assert(ctx->Driver.GetString); |
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{ |
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/* Give the driver the chance to handle this query */ |
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const GLubyte *str = (*ctx->Driver.GetString)(ctx, name); |
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if (str) |
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return str; |
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} |
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switch (name) { |
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case GL_VENDOR: |
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return (const GLubyte *) vendor; |
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case GL_RENDERER: |
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return (const GLubyte *) renderer; |
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case GL_VERSION: |
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if (ctx->Extensions.ARB_multisample && |
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ctx->Extensions.ARB_multitexture && |
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ctx->Extensions.ARB_texture_border_clamp && |
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ctx->Extensions.ARB_texture_compression && |
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ctx->Extensions.ARB_texture_cube_map && |
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ctx->Extensions.EXT_texture_env_add && |
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ctx->Extensions.ARB_texture_env_combine && |
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ctx->Extensions.ARB_texture_env_dot3) { |
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if (ctx->Extensions.ARB_depth_texture && |
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ctx->Extensions.ARB_shadow && |
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ctx->Extensions.ARB_texture_env_crossbar && |
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ctx->Extensions.ARB_texture_mirrored_repeat && |
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ctx->Extensions.ARB_window_pos && |
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ctx->Extensions.EXT_blend_color && |
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ctx->Extensions.EXT_blend_func_separate && |
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ctx->Extensions.EXT_blend_logic_op && |
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ctx->Extensions.EXT_blend_minmax && |
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ctx->Extensions.EXT_blend_subtract && |
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ctx->Extensions.EXT_fog_coord && |
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ctx->Extensions.EXT_multi_draw_arrays && |
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ctx->Extensions.EXT_point_parameters && /*aka ARB*/ |
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ctx->Extensions.EXT_secondary_color && |
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ctx->Extensions.EXT_stencil_wrap && |
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ctx->Extensions.EXT_texture_lod_bias && |
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ctx->Extensions.SGIS_generate_mipmap) { |
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if (ctx->Extensions.ARB_occlusion_query && |
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ctx->Extensions.ARB_vertex_buffer_object && |
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ctx->Extensions.EXT_shadow_funcs) { |
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if (ctx->Extensions.ARB_draw_buffers && |
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ctx->Extensions.ARB_point_sprite && |
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ctx->Extensions.ARB_texture_non_power_of_two && |
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ctx->Extensions.EXT_stencil_two_side) { |
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return (const GLubyte *) version_2_0; |
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} |
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else { |
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return (const GLubyte *) version_1_5; |
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} |
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} |
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else { |
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return (const GLubyte *) version_1_4; |
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} |
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} |
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else { |
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return (const GLubyte *) version_1_3; |
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} |
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} |
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else { |
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return (const GLubyte *) version_1_2; |
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} |
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case GL_EXTENSIONS: |
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if (!ctx->Extensions.String) |
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ctx->Extensions.String = _mesa_make_extension_string(ctx); |
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return (const GLubyte *) ctx->Extensions.String; |
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#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program || \ |
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FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program |
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case GL_PROGRAM_ERROR_STRING_NV: |
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if (ctx->Extensions.NV_fragment_program || |
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ctx->Extensions.ARB_fragment_program || |
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ctx->Extensions.NV_vertex_program || |
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ctx->Extensions.ARB_vertex_program) { |
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return (const GLubyte *) ctx->Program.ErrorString; |
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} |
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/* FALL-THROUGH */ |
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#endif |
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default: |
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_mesa_error( ctx, GL_INVALID_ENUM, "glGetString" ); |
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return (const GLubyte *) 0; |
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} |
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} |
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/** |
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* Return pointer-valued state, such as a vertex array pointer. |
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* |
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* \param pname names state to be queried |
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* \param params returns the pointer value |
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* |
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* \sa glGetPointerv(). |
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* |
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* Tries to get the specified pointer via dd_function_table::GetPointerv, |
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* otherwise gets the specified pointer from the current context. |
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*/ |
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void GLAPIENTRY |
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_mesa_GetPointerv( GLenum pname, GLvoid **params ) |
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{ |
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GET_CURRENT_CONTEXT(ctx); |
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const GLuint clientUnit = ctx->Array.ActiveTexture; |
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ASSERT_OUTSIDE_BEGIN_END(ctx); |
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if (!params) |
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return; |
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if (MESA_VERBOSE & VERBOSE_API) |
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_mesa_debug(ctx, "glGetPointerv %s\n", _mesa_lookup_enum_by_nr(pname)); |
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if (ctx->Driver.GetPointerv |
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&& (*ctx->Driver.GetPointerv)(ctx, pname, params)) |
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return; |
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switch (pname) { |
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case GL_VERTEX_ARRAY_POINTER: |
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*params = (GLvoid *) ctx->Array.Vertex.Ptr; |
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break; |
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case GL_NORMAL_ARRAY_POINTER: |
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*params = (GLvoid *) ctx->Array.Normal.Ptr; |
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break; |
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case GL_COLOR_ARRAY_POINTER: |
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*params = (GLvoid *) ctx->Array.Color.Ptr; |
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break; |
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case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT: |
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*params = (GLvoid *) ctx->Array.SecondaryColor.Ptr; |
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break; |
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case GL_FOG_COORDINATE_ARRAY_POINTER_EXT: |
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*params = (GLvoid *) ctx->Array.FogCoord.Ptr; |
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break; |
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case GL_INDEX_ARRAY_POINTER: |
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*params = (GLvoid *) ctx->Array.Index.Ptr; |
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break; |
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case GL_TEXTURE_COORD_ARRAY_POINTER: |
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*params = (GLvoid *) ctx->Array.TexCoord[clientUnit].Ptr; |
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break; |
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case GL_EDGE_FLAG_ARRAY_POINTER: |
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*params = (GLvoid *) ctx->Array.EdgeFlag.Ptr; |
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break; |
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case GL_FEEDBACK_BUFFER_POINTER: |
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*params = ctx->Feedback.Buffer; |
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break; |
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case GL_SELECTION_BUFFER_POINTER: |
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*params = ctx->Select.Buffer; |
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break; |
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#if FEATURE_MESA_program_debug |
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case GL_FRAGMENT_PROGRAM_CALLBACK_FUNC_MESA: |
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if (!ctx->Extensions.MESA_program_debug) { |
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_mesa_error(ctx, GL_INVALID_ENUM, "glGetPointerv"); |
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return; |
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} |
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*params = *(GLvoid **) &ctx->FragmentProgram.Callback; |
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break; |
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case GL_FRAGMENT_PROGRAM_CALLBACK_DATA_MESA: |
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if (!ctx->Extensions.MESA_program_debug) { |
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_mesa_error(ctx, GL_INVALID_ENUM, "glGetPointerv"); |
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return; |
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} |
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*params = ctx->FragmentProgram.CallbackData; |
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break; |
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case GL_VERTEX_PROGRAM_CALLBACK_FUNC_MESA: |
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if (!ctx->Extensions.MESA_program_debug) { |
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_mesa_error(ctx, GL_INVALID_ENUM, "glGetPointerv"); |
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return; |
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} |
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*params = *(GLvoid **) &ctx->VertexProgram.Callback; |
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break; |
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case GL_VERTEX_PROGRAM_CALLBACK_DATA_MESA: |
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if (!ctx->Extensions.MESA_program_debug) { |
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_mesa_error(ctx, GL_INVALID_ENUM, "glGetPointerv"); |
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return; |
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} |
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*params = ctx->VertexProgram.CallbackData; |
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break; |
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#endif |
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default: |
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_mesa_error( ctx, GL_INVALID_ENUM, "glGetPointerv" ); |
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return; |
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} |
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} |
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/** |
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* Returns the current GL error code, or GL_NO_ERROR. |
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* \return current error code |
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* |
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* Returns __GLcontextRec::ErrorValue. |
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*/ |
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GLenum GLAPIENTRY |
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_mesa_GetError( void ) |
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{ |
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GET_CURRENT_CONTEXT(ctx); |
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GLenum e = ctx->ErrorValue; |
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ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); |
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if (MESA_VERBOSE & VERBOSE_API) |
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_mesa_debug(ctx, "glGetError <-- %s\n", _mesa_lookup_enum_by_nr(e)); |
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ctx->ErrorValue = (GLenum) GL_NO_ERROR; |
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return e; |
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} |