| /* |
| * Mesa 3-D graphics library |
| * |
| * 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 |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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 <stdbool.h> |
| #include "glheader.h" |
| #include "context.h" |
| #include "debug_output.h" |
| #include "get.h" |
| #include "enums.h" |
| #include "extensions.h" |
| #include "mtypes.h" |
| #include "macros.h" |
| |
| /** |
| * Return the string for a glGetString(GL_SHADING_LANGUAGE_VERSION) query. |
| */ |
| static const GLubyte * |
| shading_language_version(struct gl_context *ctx) |
| { |
| switch (ctx->API) { |
| case API_OPENGL_COMPAT: |
| case API_OPENGL_CORE: |
| switch (ctx->Const.GLSLVersion) { |
| case 120: |
| return (const GLubyte *) "1.20"; |
| case 130: |
| return (const GLubyte *) "1.30"; |
| case 140: |
| return (const GLubyte *) "1.40"; |
| case 150: |
| return (const GLubyte *) "1.50"; |
| case 330: |
| return (const GLubyte *) "3.30"; |
| case 400: |
| return (const GLubyte *) "4.00"; |
| case 410: |
| return (const GLubyte *) "4.10"; |
| case 420: |
| return (const GLubyte *) "4.20"; |
| case 430: |
| return (const GLubyte *) "4.30"; |
| case 440: |
| return (const GLubyte *) "4.40"; |
| case 450: |
| return (const GLubyte *) "4.50"; |
| default: |
| _mesa_problem(ctx, |
| "Invalid GLSL version in shading_language_version()"); |
| return (const GLubyte *) 0; |
| } |
| break; |
| |
| case API_OPENGLES2: |
| switch (ctx->Version) { |
| case 20: |
| return (const GLubyte *) "OpenGL ES GLSL ES 1.0.16"; |
| case 30: |
| return (const GLubyte *) "OpenGL ES GLSL ES 3.00"; |
| case 31: |
| return (const GLubyte *) "OpenGL ES GLSL ES 3.10"; |
| case 32: |
| return (const GLubyte *) "OpenGL ES GLSL ES 3.20"; |
| default: |
| _mesa_problem(ctx, |
| "Invalid OpenGL ES version in shading_language_version()"); |
| return (const GLubyte *) 0; |
| } |
| case API_OPENGLES: |
| /* fall-through */ |
| |
| default: |
| _mesa_problem(ctx, "Unexpected API value in shading_language_version()"); |
| return (const GLubyte *) 0; |
| } |
| } |
| |
| |
| /** |
| * 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 *) ctx->VersionString; |
| case GL_EXTENSIONS: |
| if (ctx->API == API_OPENGL_CORE) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetString(GL_EXTENSIONS)"); |
| return (const GLubyte *) 0; |
| } |
| return (const GLubyte *) ctx->Extensions.String; |
| case GL_SHADING_LANGUAGE_VERSION: |
| if (ctx->API == API_OPENGLES) |
| break; |
| return shading_language_version(ctx); |
| case GL_PROGRAM_ERROR_STRING_ARB: |
| if (ctx->API == API_OPENGL_COMPAT && |
| (ctx->Extensions.ARB_fragment_program || |
| ctx->Extensions.ARB_vertex_program)) { |
| return (const GLubyte *) ctx->Program.ErrorString; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetString" ); |
| return (const GLubyte *) 0; |
| } |
| |
| |
| /** |
| * GL3 |
| */ |
| const GLubyte * GLAPIENTRY |
| _mesa_GetStringi(GLenum name, GLuint index) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| if (!ctx) |
| return NULL; |
| |
| ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL); |
| |
| switch (name) { |
| case GL_EXTENSIONS: |
| if (index >= _mesa_get_extension_count(ctx)) { |
| _mesa_error(ctx, GL_INVALID_VALUE, "glGetStringi(index=%u)", index); |
| return (const GLubyte *) 0; |
| } |
| return _mesa_get_enabled_extension(ctx, index); |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetStringi"); |
| 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; |
| const char *callerstr; |
| |
| if (_mesa_is_desktop_gl(ctx)) |
| callerstr = "glGetPointerv"; |
| else |
| callerstr = "glGetPointervKHR"; |
| |
| if (!params) |
| return; |
| |
| if (MESA_VERBOSE & VERBOSE_API) |
| _mesa_debug(ctx, "%s %s\n", callerstr, _mesa_enum_to_string(pname)); |
| |
| switch (pname) { |
| case GL_VERTEX_ARRAY_POINTER: |
| if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) |
| goto invalid_pname; |
| *params = (GLvoid *) ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_POS].Ptr; |
| break; |
| case GL_NORMAL_ARRAY_POINTER: |
| if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) |
| goto invalid_pname; |
| *params = (GLvoid *) ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_NORMAL].Ptr; |
| break; |
| case GL_COLOR_ARRAY_POINTER: |
| if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) |
| goto invalid_pname; |
| *params = (GLvoid *) ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0].Ptr; |
| break; |
| case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT: |
| if (ctx->API != API_OPENGL_COMPAT) |
| goto invalid_pname; |
| *params = (GLvoid *) ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1].Ptr; |
| break; |
| case GL_FOG_COORDINATE_ARRAY_POINTER_EXT: |
| if (ctx->API != API_OPENGL_COMPAT) |
| goto invalid_pname; |
| *params = (GLvoid *) ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_FOG].Ptr; |
| break; |
| case GL_INDEX_ARRAY_POINTER: |
| if (ctx->API != API_OPENGL_COMPAT) |
| goto invalid_pname; |
| *params = (GLvoid *) ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Ptr; |
| break; |
| case GL_TEXTURE_COORD_ARRAY_POINTER: |
| if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) |
| goto invalid_pname; |
| *params = (GLvoid *) ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(clientUnit)].Ptr; |
| break; |
| case GL_EDGE_FLAG_ARRAY_POINTER: |
| if (ctx->API != API_OPENGL_COMPAT) |
| goto invalid_pname; |
| *params = (GLvoid *) ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Ptr; |
| break; |
| case GL_FEEDBACK_BUFFER_POINTER: |
| if (ctx->API != API_OPENGL_COMPAT) |
| goto invalid_pname; |
| *params = ctx->Feedback.Buffer; |
| break; |
| case GL_SELECTION_BUFFER_POINTER: |
| if (ctx->API != API_OPENGL_COMPAT) |
| goto invalid_pname; |
| *params = ctx->Select.Buffer; |
| break; |
| case GL_POINT_SIZE_ARRAY_POINTER_OES: |
| if (ctx->API != API_OPENGLES) |
| goto invalid_pname; |
| *params = (GLvoid *) ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_POINT_SIZE].Ptr; |
| break; |
| case GL_DEBUG_CALLBACK_FUNCTION_ARB: |
| case GL_DEBUG_CALLBACK_USER_PARAM_ARB: |
| *params = _mesa_get_debug_state_ptr(ctx, pname); |
| break; |
| default: |
| goto invalid_pname; |
| } |
| |
| return; |
| |
| invalid_pname: |
| _mesa_error( ctx, GL_INVALID_ENUM, "%s", callerstr); |
| return; |
| } |
| |
| |
| /** |
| * Returns the current GL error code, or GL_NO_ERROR. |
| * \return current error code |
| * |
| * Returns __struct gl_contextRec::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_enum_to_string(e)); |
| |
| ctx->ErrorValue = (GLenum) GL_NO_ERROR; |
| ctx->ErrorDebugCount = 0; |
| return e; |
| } |
