1d0e8c109c
v2: Add ARB_internalformat_query to the list of required extensions. v3: Add OES_depth_texture_cube_map to the list of required extensions. Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
322 lines
9.5 KiB
C
322 lines
9.5 KiB
C
/*
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* Mesa 3-D graphics library
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* Version: 7.1
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*
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* Copyright (C) 1999-2008 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 "context.h"
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#include "get.h"
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#include "enums.h"
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#include "extensions.h"
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#include "mfeatures.h"
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#include "mtypes.h"
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/**
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* Return the string for a glGetString(GL_SHADING_LANGUAGE_VERSION) query.
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*/
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static const GLubyte *
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shading_language_version(struct gl_context *ctx)
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{
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switch (ctx->API) {
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case API_OPENGL_COMPAT:
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case API_OPENGL_CORE:
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if (!ctx->Extensions.ARB_shader_objects) {
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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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switch (ctx->Const.GLSLVersion) {
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case 110:
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return (const GLubyte *) "1.10";
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case 120:
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return (const GLubyte *) "1.20";
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case 130:
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return (const GLubyte *) "1.30";
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case 140:
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return (const GLubyte *) "1.40";
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case 150:
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return (const GLubyte *) "1.50";
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case 330:
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return (const GLubyte *) "3.30";
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case 400:
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return (const GLubyte *) "4.00";
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case 410:
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return (const GLubyte *) "4.10";
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case 420:
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return (const GLubyte *) "4.20";
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default:
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_mesa_problem(ctx,
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"Invalid GLSL version in shading_language_version()");
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return (const GLubyte *) 0;
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}
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break;
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case API_OPENGLES2:
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return (ctx->Version < 30)
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? (const GLubyte *) "OpenGL ES GLSL ES 1.0.16"
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: (const GLubyte *) "OpenGL ES GLSL ES 3.0";
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case API_OPENGLES:
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/* fall-through */
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default:
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_mesa_problem(ctx, "Unexpected API value in shading_language_version()");
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return (const GLubyte *) 0;
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}
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}
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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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if (!ctx)
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return NULL;
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ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);
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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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return (const GLubyte *) ctx->VersionString;
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case GL_EXTENSIONS:
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if (ctx->API == API_OPENGL_CORE) {
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_mesa_error(ctx, GL_INVALID_ENUM, "glGetString(GL_EXTENSIONS)");
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return (const GLubyte *) 0;
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}
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return (const GLubyte *) ctx->Extensions.String;
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case GL_SHADING_LANGUAGE_VERSION:
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if (ctx->API == API_OPENGLES)
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break;
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return shading_language_version(ctx);
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case GL_PROGRAM_ERROR_STRING_NV:
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if (ctx->API == API_OPENGL_COMPAT &&
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(ctx->Extensions.ARB_fragment_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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break;
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default:
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break;
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}
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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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* GL3
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*/
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const GLubyte * GLAPIENTRY
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_mesa_GetStringi(GLenum name, GLuint index)
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{
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GET_CURRENT_CONTEXT(ctx);
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if (!ctx)
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return NULL;
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ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);
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switch (name) {
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case GL_EXTENSIONS:
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if (index >= _mesa_get_extension_count(ctx)) {
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_mesa_error(ctx, GL_INVALID_VALUE, "glGetStringi(index=%u)", index);
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return (const GLubyte *) 0;
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}
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return _mesa_get_enabled_extension(ctx, index);
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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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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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switch (pname) {
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case GL_VERTEX_ARRAY_POINTER:
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if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
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goto invalid_pname;
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*params = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POS].Ptr;
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break;
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case GL_NORMAL_ARRAY_POINTER:
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if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
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goto invalid_pname;
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*params = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Ptr;
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break;
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case GL_COLOR_ARRAY_POINTER:
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if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
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goto invalid_pname;
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*params = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Ptr;
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break;
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case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT:
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if (ctx->API != API_OPENGL_COMPAT)
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goto invalid_pname;
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*params = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Ptr;
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break;
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case GL_FOG_COORDINATE_ARRAY_POINTER_EXT:
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if (ctx->API != API_OPENGL_COMPAT)
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goto invalid_pname;
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*params = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_FOG].Ptr;
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break;
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case GL_INDEX_ARRAY_POINTER:
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if (ctx->API != API_OPENGL_COMPAT)
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goto invalid_pname;
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*params = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Ptr;
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break;
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case GL_TEXTURE_COORD_ARRAY_POINTER:
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if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
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goto invalid_pname;
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*params = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(clientUnit)].Ptr;
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break;
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case GL_EDGE_FLAG_ARRAY_POINTER:
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if (ctx->API != API_OPENGL_COMPAT)
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goto invalid_pname;
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*params = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Ptr;
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break;
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case GL_FEEDBACK_BUFFER_POINTER:
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if (ctx->API != API_OPENGL_COMPAT)
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goto invalid_pname;
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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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if (ctx->API != API_OPENGL_COMPAT)
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goto invalid_pname;
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*params = ctx->Select.Buffer;
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break;
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case GL_POINT_SIZE_ARRAY_POINTER_OES:
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if (ctx->API != API_OPENGLES)
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goto invalid_pname;
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*params = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].Ptr;
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break;
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case GL_DEBUG_CALLBACK_FUNCTION_ARB:
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if (!_mesa_is_desktop_gl(ctx))
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goto invalid_pname;
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*params = (GLvoid *) ctx->Debug.Callback;
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break;
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case GL_DEBUG_CALLBACK_USER_PARAM_ARB:
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if (!_mesa_is_desktop_gl(ctx))
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goto invalid_pname;
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*params = ctx->Debug.CallbackData;
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break;
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default:
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goto invalid_pname;
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}
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return;
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invalid_pname:
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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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* 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 __struct gl_contextRec::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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ctx->ErrorDebugCount = 0;
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return e;
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}
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/**
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* Returns an error code specified by GL_ARB_robustness, or GL_NO_ERROR.
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* \return current context status
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*/
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GLenum GLAPIENTRY
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_mesa_GetGraphicsResetStatusARB( void )
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{
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GET_CURRENT_CONTEXT(ctx);
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GLenum status = ctx->ResetStatus;
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if (MESA_VERBOSE & VERBOSE_API)
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_mesa_debug(ctx, "glGetGraphicsResetStatusARB"
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"(always returns GL_NO_ERROR)\n");
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return status;
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}
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