/** * \file enable.c * Enable/disable/query GL capabilities. */ /* * Mesa 3-D graphics library * * Copyright (C) 1999-2007 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 "glheader.h" #include "blend.h" #include "clip.h" #include "context.h" #include "debug_output.h" #include "enable.h" #include "errors.h" #include "light.h" #include "mtypes.h" #include "enums.h" #include "texstate.h" #define CHECK_EXTENSION(EXTNAME, CAP) \ if (!ctx->Extensions.EXTNAME) { \ goto invalid_enum_error; \ } static void update_derived_primitive_restart_state(struct gl_context *ctx) { /* Update derived primitive restart state. */ ctx->Array._PrimitiveRestart = ctx->Array.PrimitiveRestart || ctx->Array.PrimitiveRestartFixedIndex; } /** * Helper to enable/disable client-side state. */ static void client_state(struct gl_context *ctx, GLenum cap, GLboolean state) { struct gl_vertex_array_object *vao = ctx->Array.VAO; GLbitfield vert_attrib_bit; GLboolean *enable_var; switch (cap) { case GL_VERTEX_ARRAY: enable_var = &vao->VertexAttrib[VERT_ATTRIB_POS].Enabled; vert_attrib_bit = VERT_BIT_POS; break; case GL_NORMAL_ARRAY: enable_var = &vao->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled; vert_attrib_bit = VERT_BIT_NORMAL; break; case GL_COLOR_ARRAY: enable_var = &vao->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled; vert_attrib_bit = VERT_BIT_COLOR0; break; case GL_INDEX_ARRAY: enable_var = &vao->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled; vert_attrib_bit = VERT_BIT_COLOR_INDEX; break; case GL_TEXTURE_COORD_ARRAY: enable_var = &vao->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].Enabled; vert_attrib_bit = VERT_BIT_TEX(ctx->Array.ActiveTexture); break; case GL_EDGE_FLAG_ARRAY: enable_var = &vao->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled; vert_attrib_bit = VERT_BIT_EDGEFLAG; break; case GL_FOG_COORDINATE_ARRAY_EXT: enable_var = &vao->VertexAttrib[VERT_ATTRIB_FOG].Enabled; vert_attrib_bit = VERT_BIT_FOG; break; case GL_SECONDARY_COLOR_ARRAY_EXT: enable_var = &vao->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled; vert_attrib_bit = VERT_BIT_COLOR1; break; case GL_POINT_SIZE_ARRAY_OES: enable_var = &vao->VertexAttrib[VERT_ATTRIB_POINT_SIZE].Enabled; vert_attrib_bit = VERT_BIT_POINT_SIZE; FLUSH_VERTICES(ctx, _NEW_PROGRAM); ctx->VertexProgram.PointSizeEnabled = state; break; /* GL_NV_primitive_restart */ case GL_PRIMITIVE_RESTART_NV: if (!ctx->Extensions.NV_primitive_restart) goto invalid_enum_error; if (ctx->Array.PrimitiveRestart == state) return; FLUSH_VERTICES(ctx, 0); ctx->Array.PrimitiveRestart = state; update_derived_primitive_restart_state(ctx); return; default: goto invalid_enum_error; } if (*enable_var == state) return; FLUSH_VERTICES(ctx, _NEW_ARRAY); *enable_var = state; if (state) vao->_Enabled |= vert_attrib_bit; else vao->_Enabled &= ~vert_attrib_bit; vao->NewArrays |= vert_attrib_bit; if (ctx->Driver.Enable) { ctx->Driver.Enable( ctx, cap, state ); } return; invalid_enum_error: _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(%s)", state ? "Enable" : "Disable", _mesa_enum_to_string(cap)); } /** * Enable GL capability. * \param cap state to enable/disable. * * Get's the current context, assures that we're outside glBegin()/glEnd() and * calls client_state(). */ void GLAPIENTRY _mesa_EnableClientState( GLenum cap ) { GET_CURRENT_CONTEXT(ctx); client_state( ctx, cap, GL_TRUE ); } /** * Disable GL capability. * \param cap state to enable/disable. * * Get's the current context, assures that we're outside glBegin()/glEnd() and * calls client_state(). */ void GLAPIENTRY _mesa_DisableClientState( GLenum cap ) { GET_CURRENT_CONTEXT(ctx); client_state( ctx, cap, GL_FALSE ); } #undef CHECK_EXTENSION #define CHECK_EXTENSION(EXTNAME, CAP) \ if (!ctx->Extensions.EXTNAME) { \ goto invalid_enum_error; \ } #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \ if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \ goto invalid_enum_error; \ } /** * Return pointer to current texture unit for setting/getting coordinate * state. * Note that we'll set GL_INVALID_OPERATION and return NULL if the active * texture unit is higher than the number of supported coordinate units. */ static struct gl_texture_unit * get_texcoord_unit(struct gl_context *ctx) { if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) { _mesa_error(ctx, GL_INVALID_OPERATION, "glEnable/Disable(texcoord unit)"); return NULL; } else { return &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; } } /** * Helper function to enable or disable a texture target. * \param bit one of the TEXTURE_x_BIT values * \return GL_TRUE if state is changing or GL_FALSE if no change */ static GLboolean enable_texture(struct gl_context *ctx, GLboolean state, GLbitfield texBit) { struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); const GLbitfield newenabled = state ? (texUnit->Enabled | texBit) : (texUnit->Enabled & ~texBit); if (texUnit->Enabled == newenabled) return GL_FALSE; FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE); texUnit->Enabled = newenabled; return GL_TRUE; } /** * Helper function to enable or disable GL_MULTISAMPLE, skipping the check for * whether the API supports it (GLES doesn't). */ void _mesa_set_multisample(struct gl_context *ctx, GLboolean state) { if (ctx->Multisample.Enabled == state) return; /* GL compatibility needs Multisample.Enable to determine program state * constants. */ if (ctx->API == API_OPENGL_COMPAT || ctx->API == API_OPENGLES || !ctx->DriverFlags.NewMultisampleEnable) { FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); } else { FLUSH_VERTICES(ctx, 0); } ctx->NewDriverState |= ctx->DriverFlags.NewMultisampleEnable; ctx->Multisample.Enabled = state; if (ctx->Driver.Enable) { ctx->Driver.Enable(ctx, GL_MULTISAMPLE, state); } } /** * Helper function to enable or disable GL_FRAMEBUFFER_SRGB, skipping the * check for whether the API supports it (GLES doesn't). */ void _mesa_set_framebuffer_srgb(struct gl_context *ctx, GLboolean state) { if (ctx->Color.sRGBEnabled == state) return; /* TODO: Switch i965 to the new flag and remove the conditional */ FLUSH_VERTICES(ctx, ctx->DriverFlags.NewFramebufferSRGB ? 0 : _NEW_BUFFERS); ctx->NewDriverState |= ctx->DriverFlags.NewFramebufferSRGB; ctx->Color.sRGBEnabled = state; if (ctx->Driver.Enable) { ctx->Driver.Enable(ctx, GL_FRAMEBUFFER_SRGB, state); } } /** * Helper function to enable or disable state. * * \param ctx GL context. * \param cap the state to enable/disable * \param state whether to enable or disable the specified capability. * * Updates the current context and flushes the vertices as needed. For * capabilities associated with extensions it verifies that those extensions * are effectivly present before updating. Notifies the driver via * dd_function_table::Enable. */ void _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state) { if (MESA_VERBOSE & VERBOSE_API) _mesa_debug(ctx, "%s %s (newstate is %x)\n", state ? "glEnable" : "glDisable", _mesa_enum_to_string(cap), ctx->NewState); switch (cap) { case GL_ALPHA_TEST: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Color.AlphaEnabled == state) return; /* AlphaEnabled is used by the fixed-func fragment program */ FLUSH_VERTICES(ctx, _NEW_COLOR); ctx->NewDriverState |= ctx->DriverFlags.NewAlphaTest; ctx->Color.AlphaEnabled = state; break; case GL_AUTO_NORMAL: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.AutoNormal == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.AutoNormal = state; break; case GL_BLEND: { GLbitfield newEnabled = state * ((1 << ctx->Const.MaxDrawBuffers) - 1); if (newEnabled != ctx->Color.BlendEnabled) { _mesa_flush_vertices_for_blend_state(ctx); ctx->Color.BlendEnabled = newEnabled; } } break; case GL_CLIP_DISTANCE0: /* aka GL_CLIP_PLANE0 */ case GL_CLIP_DISTANCE1: case GL_CLIP_DISTANCE2: case GL_CLIP_DISTANCE3: case GL_CLIP_DISTANCE4: case GL_CLIP_DISTANCE5: case GL_CLIP_DISTANCE6: case GL_CLIP_DISTANCE7: { const GLuint p = cap - GL_CLIP_DISTANCE0; if (p >= ctx->Const.MaxClipPlanes) goto invalid_enum_error; if ((ctx->Transform.ClipPlanesEnabled & (1 << p)) == ((GLuint) state << p)) return; /* The compatibility profile needs _NEW_TRANSFORM to transform * clip planes according to the projection matrix. */ if (ctx->API == API_OPENGL_COMPAT || ctx->API == API_OPENGLES || !ctx->DriverFlags.NewClipPlaneEnable) { FLUSH_VERTICES(ctx, _NEW_TRANSFORM); } else { FLUSH_VERTICES(ctx, 0); } ctx->NewDriverState |= ctx->DriverFlags.NewClipPlaneEnable; if (state) { ctx->Transform.ClipPlanesEnabled |= (1 << p); /* The projection matrix transforms the clip plane. */ /* TODO: glEnable might not be the best place to do it. */ if (ctx->API == API_OPENGL_COMPAT || ctx->API == API_OPENGLES) { _mesa_update_clip_plane(ctx, p); ctx->NewDriverState |= ctx->DriverFlags.NewClipPlane; } } else { ctx->Transform.ClipPlanesEnabled &= ~(1 << p); } } break; case GL_COLOR_MATERIAL: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Light.ColorMaterialEnabled == state) return; FLUSH_VERTICES(ctx, _NEW_LIGHT); FLUSH_CURRENT(ctx, 0); ctx->Light.ColorMaterialEnabled = state; if (state) { _mesa_update_color_material( ctx, ctx->Current.Attrib[VERT_ATTRIB_COLOR0] ); } break; case GL_CULL_FACE: if (ctx->Polygon.CullFlag == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON); ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState; ctx->Polygon.CullFlag = state; break; case GL_DEPTH_TEST: if (ctx->Depth.Test == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepth ? 0 : _NEW_DEPTH); ctx->NewDriverState |= ctx->DriverFlags.NewDepth; ctx->Depth.Test = state; break; case GL_DEBUG_OUTPUT: case GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB: _mesa_set_debug_state_int(ctx, cap, state); break; case GL_DITHER: if (ctx->Color.DitherFlag == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewBlend ? 0 : _NEW_COLOR); ctx->NewDriverState |= ctx->DriverFlags.NewBlend; ctx->Color.DitherFlag = state; break; case GL_FOG: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Fog.Enabled == state) return; FLUSH_VERTICES(ctx, _NEW_FOG); ctx->Fog.Enabled = state; ctx->Fog._PackedEnabledMode = state ? ctx->Fog._PackedMode : FOG_NONE; break; case GL_LIGHT0: case GL_LIGHT1: case GL_LIGHT2: case GL_LIGHT3: case GL_LIGHT4: case GL_LIGHT5: case GL_LIGHT6: case GL_LIGHT7: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Light.Light[cap-GL_LIGHT0].Enabled == state) return; FLUSH_VERTICES(ctx, _NEW_LIGHT); ctx->Light.Light[cap-GL_LIGHT0].Enabled = state; if (state) { ctx->Light._EnabledLights |= 1u << (cap - GL_LIGHT0); } else { ctx->Light._EnabledLights &= ~(1u << (cap - GL_LIGHT0)); } break; case GL_LIGHTING: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Light.Enabled == state) return; FLUSH_VERTICES(ctx, _NEW_LIGHT); ctx->Light.Enabled = state; break; case GL_LINE_SMOOTH: if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Line.SmoothFlag == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewLineState ? 0 : _NEW_LINE); ctx->NewDriverState |= ctx->DriverFlags.NewLineState; ctx->Line.SmoothFlag = state; break; case GL_LINE_STIPPLE: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Line.StippleFlag == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewLineState ? 0 : _NEW_LINE); ctx->NewDriverState |= ctx->DriverFlags.NewLineState; ctx->Line.StippleFlag = state; break; case GL_INDEX_LOGIC_OP: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Color.IndexLogicOpEnabled == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewLogicOp ? 0 : _NEW_COLOR); ctx->NewDriverState |= ctx->DriverFlags.NewLogicOp; ctx->Color.IndexLogicOpEnabled = state; break; case GL_CONSERVATIVE_RASTERIZATION_INTEL: if (!_mesa_has_INTEL_conservative_rasterization(ctx)) goto invalid_enum_error; if (ctx->IntelConservativeRasterization == state) return; FLUSH_VERTICES(ctx, 0); ctx->NewDriverState |= ctx->DriverFlags.NewIntelConservativeRasterization; ctx->IntelConservativeRasterization = state; break; case GL_COLOR_LOGIC_OP: if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Color.ColorLogicOpEnabled == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewLogicOp ? 0 : _NEW_COLOR); ctx->NewDriverState |= ctx->DriverFlags.NewLogicOp; ctx->Color.ColorLogicOpEnabled = state; break; case GL_MAP1_COLOR_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map1Color4 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map1Color4 = state; break; case GL_MAP1_INDEX: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map1Index == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map1Index = state; break; case GL_MAP1_NORMAL: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map1Normal == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map1Normal = state; break; case GL_MAP1_TEXTURE_COORD_1: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map1TextureCoord1 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map1TextureCoord1 = state; break; case GL_MAP1_TEXTURE_COORD_2: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map1TextureCoord2 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map1TextureCoord2 = state; break; case GL_MAP1_TEXTURE_COORD_3: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map1TextureCoord3 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map1TextureCoord3 = state; break; case GL_MAP1_TEXTURE_COORD_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map1TextureCoord4 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map1TextureCoord4 = state; break; case GL_MAP1_VERTEX_3: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map1Vertex3 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map1Vertex3 = state; break; case GL_MAP1_VERTEX_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map1Vertex4 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map1Vertex4 = state; break; case GL_MAP2_COLOR_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map2Color4 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map2Color4 = state; break; case GL_MAP2_INDEX: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map2Index == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map2Index = state; break; case GL_MAP2_NORMAL: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map2Normal == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map2Normal = state; break; case GL_MAP2_TEXTURE_COORD_1: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map2TextureCoord1 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map2TextureCoord1 = state; break; case GL_MAP2_TEXTURE_COORD_2: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map2TextureCoord2 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map2TextureCoord2 = state; break; case GL_MAP2_TEXTURE_COORD_3: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map2TextureCoord3 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map2TextureCoord3 = state; break; case GL_MAP2_TEXTURE_COORD_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map2TextureCoord4 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map2TextureCoord4 = state; break; case GL_MAP2_VERTEX_3: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map2Vertex3 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map2Vertex3 = state; break; case GL_MAP2_VERTEX_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Eval.Map2Vertex4 == state) return; FLUSH_VERTICES(ctx, _NEW_EVAL); ctx->Eval.Map2Vertex4 = state; break; case GL_NORMALIZE: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Transform.Normalize == state) return; FLUSH_VERTICES(ctx, _NEW_TRANSFORM); ctx->Transform.Normalize = state; break; case GL_POINT_SMOOTH: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Point.SmoothFlag == state) return; FLUSH_VERTICES(ctx, _NEW_POINT); ctx->Point.SmoothFlag = state; break; case GL_POLYGON_SMOOTH: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; if (ctx->Polygon.SmoothFlag == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON); ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState; ctx->Polygon.SmoothFlag = state; break; case GL_POLYGON_STIPPLE: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Polygon.StippleFlag == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON); ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState; ctx->Polygon.StippleFlag = state; break; case GL_POLYGON_OFFSET_POINT: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; if (ctx->Polygon.OffsetPoint == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON); ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState; ctx->Polygon.OffsetPoint = state; break; case GL_POLYGON_OFFSET_LINE: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; if (ctx->Polygon.OffsetLine == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON); ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState; ctx->Polygon.OffsetLine = state; break; case GL_POLYGON_OFFSET_FILL: if (ctx->Polygon.OffsetFill == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON); ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState; ctx->Polygon.OffsetFill = state; break; case GL_RESCALE_NORMAL_EXT: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Transform.RescaleNormals == state) return; FLUSH_VERTICES(ctx, _NEW_TRANSFORM); ctx->Transform.RescaleNormals = state; break; case GL_SCISSOR_TEST: { /* Must expand glEnable to all scissors */ GLbitfield newEnabled = state * ((1 << ctx->Const.MaxViewports) - 1); if (newEnabled != ctx->Scissor.EnableFlags) { FLUSH_VERTICES(ctx, ctx->DriverFlags.NewScissorTest ? 0 : _NEW_SCISSOR); ctx->NewDriverState |= ctx->DriverFlags.NewScissorTest; ctx->Scissor.EnableFlags = newEnabled; } } break; case GL_STENCIL_TEST: if (ctx->Stencil.Enabled == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewStencil ? 0 : _NEW_STENCIL); ctx->NewDriverState |= ctx->DriverFlags.NewStencil; ctx->Stencil.Enabled = state; break; case GL_TEXTURE_1D: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) { return; } break; case GL_TEXTURE_2D: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) { return; } break; case GL_TEXTURE_3D: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) { return; } break; case GL_TEXTURE_GEN_S: case GL_TEXTURE_GEN_T: case GL_TEXTURE_GEN_R: case GL_TEXTURE_GEN_Q: { struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (texUnit) { GLbitfield coordBit = S_BIT << (cap - GL_TEXTURE_GEN_S); GLbitfield newenabled = texUnit->TexGenEnabled & ~coordBit; if (state) newenabled |= coordBit; if (texUnit->TexGenEnabled == newenabled) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE); texUnit->TexGenEnabled = newenabled; } } break; case GL_TEXTURE_GEN_STR_OES: /* disable S, T, and R at the same time */ { struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); if (ctx->API != API_OPENGLES) goto invalid_enum_error; if (texUnit) { GLuint newenabled = texUnit->TexGenEnabled & ~STR_BITS; if (state) newenabled |= STR_BITS; if (texUnit->TexGenEnabled == newenabled) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE); texUnit->TexGenEnabled = newenabled; } } break; /* client-side state */ case GL_VERTEX_ARRAY: case GL_NORMAL_ARRAY: case GL_COLOR_ARRAY: case GL_TEXTURE_COORD_ARRAY: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; client_state( ctx, cap, state ); return; case GL_INDEX_ARRAY: case GL_EDGE_FLAG_ARRAY: case GL_FOG_COORDINATE_ARRAY_EXT: case GL_SECONDARY_COLOR_ARRAY_EXT: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; client_state( ctx, cap, state ); return; case GL_POINT_SIZE_ARRAY_OES: if (ctx->API != API_OPENGLES) goto invalid_enum_error; client_state( ctx, cap, state ); return; /* GL_ARB_texture_cube_map */ case GL_TEXTURE_CUBE_MAP: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; CHECK_EXTENSION(ARB_texture_cube_map, cap); if (!enable_texture(ctx, state, TEXTURE_CUBE_BIT)) { return; } break; /* GL_EXT_secondary_color */ case GL_COLOR_SUM_EXT: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Fog.ColorSumEnabled == state) return; FLUSH_VERTICES(ctx, _NEW_FOG); ctx->Fog.ColorSumEnabled = state; break; /* GL_ARB_multisample */ case GL_MULTISAMPLE_ARB: if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) goto invalid_enum_error; _mesa_set_multisample(ctx, state); return; case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB: if (ctx->Multisample.SampleAlphaToCoverage == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleAlphaToXEnable ? 0 : _NEW_MULTISAMPLE); ctx->NewDriverState |= ctx->DriverFlags.NewSampleAlphaToXEnable; ctx->Multisample.SampleAlphaToCoverage = state; break; case GL_SAMPLE_ALPHA_TO_ONE_ARB: if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) goto invalid_enum_error; if (ctx->Multisample.SampleAlphaToOne == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleAlphaToXEnable ? 0 : _NEW_MULTISAMPLE); ctx->NewDriverState |= ctx->DriverFlags.NewSampleAlphaToXEnable; ctx->Multisample.SampleAlphaToOne = state; break; case GL_SAMPLE_COVERAGE_ARB: if (ctx->Multisample.SampleCoverage == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleMask ? 0 : _NEW_MULTISAMPLE); ctx->NewDriverState |= ctx->DriverFlags.NewSampleMask; ctx->Multisample.SampleCoverage = state; break; case GL_SAMPLE_COVERAGE_INVERT_ARB: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; if (ctx->Multisample.SampleCoverageInvert == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleMask ? 0 : _NEW_MULTISAMPLE); ctx->NewDriverState |= ctx->DriverFlags.NewSampleMask; ctx->Multisample.SampleCoverageInvert = state; break; /* GL_ARB_sample_shading */ case GL_SAMPLE_SHADING: if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) goto invalid_enum_error; CHECK_EXTENSION(ARB_sample_shading, cap); if (ctx->Multisample.SampleShading == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleShading ? 0 : _NEW_MULTISAMPLE); ctx->NewDriverState |= ctx->DriverFlags.NewSampleShading; ctx->Multisample.SampleShading = state; break; /* GL_IBM_rasterpos_clip */ case GL_RASTER_POSITION_UNCLIPPED_IBM: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (ctx->Transform.RasterPositionUnclipped == state) return; FLUSH_VERTICES(ctx, 0); ctx->Transform.RasterPositionUnclipped = state; break; /* GL_NV_point_sprite */ case GL_POINT_SPRITE_NV: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite, cap); if (ctx->Point.PointSprite == state) return; FLUSH_VERTICES(ctx, _NEW_POINT); ctx->Point.PointSprite = state; break; case GL_VERTEX_PROGRAM_ARB: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(ARB_vertex_program, cap); if (ctx->VertexProgram.Enabled == state) return; FLUSH_VERTICES(ctx, _NEW_PROGRAM); ctx->VertexProgram.Enabled = state; break; case GL_VERTEX_PROGRAM_POINT_SIZE_ARB: /* This was added with ARB_vertex_program, but it is also used with * GLSL vertex shaders on desktop. */ if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; CHECK_EXTENSION(ARB_vertex_program, cap); if (ctx->VertexProgram.PointSizeEnabled == state) return; FLUSH_VERTICES(ctx, _NEW_PROGRAM); ctx->VertexProgram.PointSizeEnabled = state; break; case GL_VERTEX_PROGRAM_TWO_SIDE_ARB: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(ARB_vertex_program, cap); if (ctx->VertexProgram.TwoSideEnabled == state) return; FLUSH_VERTICES(ctx, _NEW_PROGRAM); ctx->VertexProgram.TwoSideEnabled = state; break; /* GL_NV_texture_rectangle */ case GL_TEXTURE_RECTANGLE_NV: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(NV_texture_rectangle, cap); if (!enable_texture(ctx, state, TEXTURE_RECT_BIT)) { return; } break; /* GL_EXT_stencil_two_side */ case GL_STENCIL_TEST_TWO_SIDE_EXT: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(EXT_stencil_two_side, cap); if (ctx->Stencil.TestTwoSide == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewStencil ? 0 : _NEW_STENCIL); ctx->NewDriverState |= ctx->DriverFlags.NewStencil; ctx->Stencil.TestTwoSide = state; if (state) { ctx->Stencil._BackFace = 2; } else { ctx->Stencil._BackFace = 1; } break; case GL_FRAGMENT_PROGRAM_ARB: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(ARB_fragment_program, cap); if (ctx->FragmentProgram.Enabled == state) return; FLUSH_VERTICES(ctx, _NEW_PROGRAM); ctx->FragmentProgram.Enabled = state; break; /* GL_EXT_depth_bounds_test */ case GL_DEPTH_BOUNDS_TEST_EXT: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; CHECK_EXTENSION(EXT_depth_bounds_test, cap); if (ctx->Depth.BoundsTest == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepth ? 0 : _NEW_DEPTH); ctx->NewDriverState |= ctx->DriverFlags.NewDepth; ctx->Depth.BoundsTest = state; break; case GL_DEPTH_CLAMP: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; CHECK_EXTENSION(ARB_depth_clamp, cap); if (ctx->Transform.DepthClamp == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepthClamp ? 0 : _NEW_TRANSFORM); ctx->NewDriverState |= ctx->DriverFlags.NewDepthClamp; ctx->Transform.DepthClamp = state; break; case GL_FRAGMENT_SHADER_ATI: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(ATI_fragment_shader, cap); if (ctx->ATIFragmentShader.Enabled == state) return; FLUSH_VERTICES(ctx, _NEW_PROGRAM); ctx->ATIFragmentShader.Enabled = state; break; case GL_TEXTURE_CUBE_MAP_SEAMLESS: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; CHECK_EXTENSION(ARB_seamless_cube_map, cap); if (ctx->Texture.CubeMapSeamless != state) { FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT); ctx->Texture.CubeMapSeamless = state; } break; case GL_RASTERIZER_DISCARD: if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) goto invalid_enum_error; CHECK_EXTENSION(EXT_transform_feedback, cap); if (ctx->RasterDiscard != state) { FLUSH_VERTICES(ctx, 0); ctx->NewDriverState |= ctx->DriverFlags.NewRasterizerDiscard; ctx->RasterDiscard = state; } break; case GL_TILE_RASTER_ORDER_FIXED_MESA: CHECK_EXTENSION(MESA_tile_raster_order, cap); if (ctx->TileRasterOrderFixed != state) { FLUSH_VERTICES(ctx, 0); ctx->NewDriverState |= ctx->DriverFlags.NewTileRasterOrder; ctx->TileRasterOrderFixed = state; } break; case GL_TILE_RASTER_ORDER_INCREASING_X_MESA: CHECK_EXTENSION(MESA_tile_raster_order, cap); if (ctx->TileRasterOrderIncreasingX != state) { FLUSH_VERTICES(ctx, 0); ctx->NewDriverState |= ctx->DriverFlags.NewTileRasterOrder; ctx->TileRasterOrderIncreasingX = state; } break; case GL_TILE_RASTER_ORDER_INCREASING_Y_MESA: CHECK_EXTENSION(MESA_tile_raster_order, cap); if (ctx->TileRasterOrderIncreasingY != state) { FLUSH_VERTICES(ctx, 0); ctx->NewDriverState |= ctx->DriverFlags.NewTileRasterOrder; ctx->TileRasterOrderIncreasingY = state; } break; /* GL 3.1 primitive restart. Note: this enum is different from * GL_PRIMITIVE_RESTART_NV (which is client state). */ case GL_PRIMITIVE_RESTART: if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 31) { goto invalid_enum_error; } if (ctx->Array.PrimitiveRestart != state) { FLUSH_VERTICES(ctx, 0); ctx->Array.PrimitiveRestart = state; update_derived_primitive_restart_state(ctx); } break; case GL_PRIMITIVE_RESTART_FIXED_INDEX: if (!_mesa_is_gles3(ctx) && !ctx->Extensions.ARB_ES3_compatibility) goto invalid_enum_error; if (ctx->Array.PrimitiveRestartFixedIndex != state) { FLUSH_VERTICES(ctx, 0); ctx->Array.PrimitiveRestartFixedIndex = state; update_derived_primitive_restart_state(ctx); } break; /* GL3.0 - GL_framebuffer_sRGB */ case GL_FRAMEBUFFER_SRGB_EXT: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; CHECK_EXTENSION(EXT_framebuffer_sRGB, cap); _mesa_set_framebuffer_srgb(ctx, state); return; /* GL_OES_EGL_image_external */ case GL_TEXTURE_EXTERNAL_OES: if (!_mesa_is_gles(ctx)) goto invalid_enum_error; CHECK_EXTENSION(OES_EGL_image_external, cap); if (!enable_texture(ctx, state, TEXTURE_EXTERNAL_BIT)) { return; } break; /* ARB_texture_multisample */ case GL_SAMPLE_MASK: if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx)) goto invalid_enum_error; CHECK_EXTENSION(ARB_texture_multisample, cap); if (ctx->Multisample.SampleMask == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleMask ? 0 : _NEW_MULTISAMPLE); ctx->NewDriverState |= ctx->DriverFlags.NewSampleMask; ctx->Multisample.SampleMask = state; break; case GL_BLEND_ADVANCED_COHERENT_KHR: CHECK_EXTENSION(KHR_blend_equation_advanced_coherent, cap); if (ctx->Color.BlendCoherent == state) return; FLUSH_VERTICES(ctx, ctx->DriverFlags.NewBlend ? 0 : _NEW_COLOR); ctx->NewDriverState |= ctx->DriverFlags.NewBlend; ctx->Color.BlendCoherent = state; break; default: goto invalid_enum_error; } if (ctx->Driver.Enable) { ctx->Driver.Enable( ctx, cap, state ); } return; invalid_enum_error: _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(%s)", state ? "Enable" : "Disable", _mesa_enum_to_string(cap)); } /** * Enable GL capability. Called by glEnable() * \param cap state to enable. */ void GLAPIENTRY _mesa_Enable( GLenum cap ) { GET_CURRENT_CONTEXT(ctx); _mesa_set_enable( ctx, cap, GL_TRUE ); } /** * Disable GL capability. Called by glDisable() * \param cap state to disable. */ void GLAPIENTRY _mesa_Disable( GLenum cap ) { GET_CURRENT_CONTEXT(ctx); _mesa_set_enable( ctx, cap, GL_FALSE ); } /** * Enable/disable an indexed state var. */ void _mesa_set_enablei(struct gl_context *ctx, GLenum cap, GLuint index, GLboolean state) { assert(state == 0 || state == 1); switch (cap) { case GL_BLEND: if (!ctx->Extensions.EXT_draw_buffers2) { goto invalid_enum_error; } if (index >= ctx->Const.MaxDrawBuffers) { _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", state ? "glEnableIndexed" : "glDisableIndexed", index); return; } if (((ctx->Color.BlendEnabled >> index) & 1) != state) { _mesa_flush_vertices_for_blend_state(ctx); if (state) ctx->Color.BlendEnabled |= (1 << index); else ctx->Color.BlendEnabled &= ~(1 << index); } break; case GL_SCISSOR_TEST: if (index >= ctx->Const.MaxViewports) { _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", state ? "glEnablei" : "glDisablei", index); return; } if (((ctx->Scissor.EnableFlags >> index) & 1) != state) { FLUSH_VERTICES(ctx, ctx->DriverFlags.NewScissorTest ? 0 : _NEW_SCISSOR); ctx->NewDriverState |= ctx->DriverFlags.NewScissorTest; if (state) ctx->Scissor.EnableFlags |= (1 << index); else ctx->Scissor.EnableFlags &= ~(1 << index); } break; default: goto invalid_enum_error; } return; invalid_enum_error: _mesa_error(ctx, GL_INVALID_ENUM, "%s(cap=%s)", state ? "glEnablei" : "glDisablei", _mesa_enum_to_string(cap)); } void GLAPIENTRY _mesa_Disablei( GLenum cap, GLuint index ) { GET_CURRENT_CONTEXT(ctx); _mesa_set_enablei(ctx, cap, index, GL_FALSE); } void GLAPIENTRY _mesa_Enablei( GLenum cap, GLuint index ) { GET_CURRENT_CONTEXT(ctx); _mesa_set_enablei(ctx, cap, index, GL_TRUE); } GLboolean GLAPIENTRY _mesa_IsEnabledi( GLenum cap, GLuint index ) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); switch (cap) { case GL_BLEND: if (index >= ctx->Const.MaxDrawBuffers) { _mesa_error(ctx, GL_INVALID_VALUE, "glIsEnabledIndexed(index=%u)", index); return GL_FALSE; } return (ctx->Color.BlendEnabled >> index) & 1; case GL_SCISSOR_TEST: if (index >= ctx->Const.MaxViewports) { _mesa_error(ctx, GL_INVALID_VALUE, "glIsEnabledIndexed(index=%u)", index); return GL_FALSE; } return (ctx->Scissor.EnableFlags >> index) & 1; default: _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabledIndexed(cap=%s)", _mesa_enum_to_string(cap)); return GL_FALSE; } } #undef CHECK_EXTENSION #define CHECK_EXTENSION(EXTNAME) \ if (!ctx->Extensions.EXTNAME) { \ goto invalid_enum_error; \ } #undef CHECK_EXTENSION2 #define CHECK_EXTENSION2(EXT1, EXT2) \ if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \ goto invalid_enum_error; \ } /** * Helper function to determine whether a texture target is enabled. */ static GLboolean is_texture_enabled(struct gl_context *ctx, GLbitfield bit) { const struct gl_texture_unit *const texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; return (texUnit->Enabled & bit) ? GL_TRUE : GL_FALSE; } /** * Return simple enable/disable state. * * \param cap state variable to query. * * Returns the state of the specified capability from the current GL context. * For the capabilities associated with extensions verifies that those * extensions are effectively present before reporting. */ GLboolean GLAPIENTRY _mesa_IsEnabled( GLenum cap ) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); switch (cap) { case GL_ALPHA_TEST: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Color.AlphaEnabled; case GL_AUTO_NORMAL: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.AutoNormal; case GL_BLEND: return ctx->Color.BlendEnabled & 1; /* return state for buffer[0] */ case GL_CLIP_DISTANCE0: /* aka GL_CLIP_PLANE0 */ case GL_CLIP_DISTANCE1: case GL_CLIP_DISTANCE2: case GL_CLIP_DISTANCE3: case GL_CLIP_DISTANCE4: case GL_CLIP_DISTANCE5: case GL_CLIP_DISTANCE6: case GL_CLIP_DISTANCE7: { const GLuint p = cap - GL_CLIP_DISTANCE0; if (p >= ctx->Const.MaxClipPlanes) goto invalid_enum_error; return (ctx->Transform.ClipPlanesEnabled >> p) & 1; } case GL_COLOR_MATERIAL: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Light.ColorMaterialEnabled; case GL_CULL_FACE: return ctx->Polygon.CullFlag; case GL_DEBUG_OUTPUT: case GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB: return (GLboolean) _mesa_get_debug_state_int(ctx, cap); case GL_DEPTH_TEST: return ctx->Depth.Test; case GL_DITHER: return ctx->Color.DitherFlag; case GL_FOG: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Fog.Enabled; case GL_LIGHTING: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Light.Enabled; case GL_LIGHT0: case GL_LIGHT1: case GL_LIGHT2: case GL_LIGHT3: case GL_LIGHT4: case GL_LIGHT5: case GL_LIGHT6: case GL_LIGHT7: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Light.Light[cap-GL_LIGHT0].Enabled; case GL_LINE_SMOOTH: if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Line.SmoothFlag; case GL_LINE_STIPPLE: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Line.StippleFlag; case GL_INDEX_LOGIC_OP: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Color.IndexLogicOpEnabled; case GL_COLOR_LOGIC_OP: if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Color.ColorLogicOpEnabled; case GL_MAP1_COLOR_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map1Color4; case GL_MAP1_INDEX: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map1Index; case GL_MAP1_NORMAL: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map1Normal; case GL_MAP1_TEXTURE_COORD_1: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map1TextureCoord1; case GL_MAP1_TEXTURE_COORD_2: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map1TextureCoord2; case GL_MAP1_TEXTURE_COORD_3: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map1TextureCoord3; case GL_MAP1_TEXTURE_COORD_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map1TextureCoord4; case GL_MAP1_VERTEX_3: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map1Vertex3; case GL_MAP1_VERTEX_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map1Vertex4; case GL_MAP2_COLOR_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map2Color4; case GL_MAP2_INDEX: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map2Index; case GL_MAP2_NORMAL: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map2Normal; case GL_MAP2_TEXTURE_COORD_1: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map2TextureCoord1; case GL_MAP2_TEXTURE_COORD_2: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map2TextureCoord2; case GL_MAP2_TEXTURE_COORD_3: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map2TextureCoord3; case GL_MAP2_TEXTURE_COORD_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map2TextureCoord4; case GL_MAP2_VERTEX_3: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map2Vertex3; case GL_MAP2_VERTEX_4: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Eval.Map2Vertex4; case GL_NORMALIZE: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Transform.Normalize; case GL_POINT_SMOOTH: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Point.SmoothFlag; case GL_POLYGON_SMOOTH: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; return ctx->Polygon.SmoothFlag; case GL_POLYGON_STIPPLE: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Polygon.StippleFlag; case GL_POLYGON_OFFSET_POINT: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; return ctx->Polygon.OffsetPoint; case GL_POLYGON_OFFSET_LINE: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; return ctx->Polygon.OffsetLine; case GL_POLYGON_OFFSET_FILL: return ctx->Polygon.OffsetFill; case GL_RESCALE_NORMAL_EXT: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Transform.RescaleNormals; case GL_SCISSOR_TEST: return ctx->Scissor.EnableFlags & 1; /* return state for index 0 */ case GL_STENCIL_TEST: return ctx->Stencil.Enabled; case GL_TEXTURE_1D: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return is_texture_enabled(ctx, TEXTURE_1D_BIT); case GL_TEXTURE_2D: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return is_texture_enabled(ctx, TEXTURE_2D_BIT); case GL_TEXTURE_3D: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return is_texture_enabled(ctx, TEXTURE_3D_BIT); case GL_TEXTURE_GEN_S: case GL_TEXTURE_GEN_T: case GL_TEXTURE_GEN_R: case GL_TEXTURE_GEN_Q: { const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; if (texUnit) { GLbitfield coordBit = S_BIT << (cap - GL_TEXTURE_GEN_S); return (texUnit->TexGenEnabled & coordBit) ? GL_TRUE : GL_FALSE; } } return GL_FALSE; case GL_TEXTURE_GEN_STR_OES: { const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); if (ctx->API != API_OPENGLES) goto invalid_enum_error; if (texUnit) { return (texUnit->TexGenEnabled & STR_BITS) == STR_BITS ? GL_TRUE : GL_FALSE; } } /* client-side state */ case GL_VERTEX_ARRAY: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_POS].Enabled; case GL_NORMAL_ARRAY: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled; case GL_COLOR_ARRAY: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled; case GL_INDEX_ARRAY: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Array.VAO-> VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled; case GL_TEXTURE_COORD_ARRAY: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Array.VAO-> VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].Enabled; case GL_EDGE_FLAG_ARRAY: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled; case GL_FOG_COORDINATE_ARRAY_EXT: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_FOG].Enabled; case GL_SECONDARY_COLOR_ARRAY_EXT: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled; case GL_POINT_SIZE_ARRAY_OES: if (ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_POINT_SIZE].Enabled; /* GL_ARB_texture_cube_map */ case GL_TEXTURE_CUBE_MAP: CHECK_EXTENSION(ARB_texture_cube_map); return is_texture_enabled(ctx, TEXTURE_CUBE_BIT); /* GL_EXT_secondary_color */ case GL_COLOR_SUM_EXT: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Fog.ColorSumEnabled; /* GL_ARB_multisample */ case GL_MULTISAMPLE_ARB: if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Multisample.Enabled; case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB: return ctx->Multisample.SampleAlphaToCoverage; case GL_SAMPLE_ALPHA_TO_ONE_ARB: if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) goto invalid_enum_error; return ctx->Multisample.SampleAlphaToOne; case GL_SAMPLE_COVERAGE_ARB: return ctx->Multisample.SampleCoverage; case GL_SAMPLE_COVERAGE_INVERT_ARB: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; return ctx->Multisample.SampleCoverageInvert; /* GL_IBM_rasterpos_clip */ case GL_RASTER_POSITION_UNCLIPPED_IBM: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->Transform.RasterPositionUnclipped; /* GL_NV_point_sprite */ case GL_POINT_SPRITE_NV: if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) goto invalid_enum_error; CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite) return ctx->Point.PointSprite; case GL_VERTEX_PROGRAM_ARB: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(ARB_vertex_program); return ctx->VertexProgram.Enabled; case GL_VERTEX_PROGRAM_POINT_SIZE_ARB: /* This was added with ARB_vertex_program, but it is also used with * GLSL vertex shaders on desktop. */ if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; CHECK_EXTENSION(ARB_vertex_program); return ctx->VertexProgram.PointSizeEnabled; case GL_VERTEX_PROGRAM_TWO_SIDE_ARB: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(ARB_vertex_program); return ctx->VertexProgram.TwoSideEnabled; /* GL_NV_texture_rectangle */ case GL_TEXTURE_RECTANGLE_NV: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(NV_texture_rectangle); return is_texture_enabled(ctx, TEXTURE_RECT_BIT); /* GL_EXT_stencil_two_side */ case GL_STENCIL_TEST_TWO_SIDE_EXT: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(EXT_stencil_two_side); return ctx->Stencil.TestTwoSide; case GL_FRAGMENT_PROGRAM_ARB: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; return ctx->FragmentProgram.Enabled; /* GL_EXT_depth_bounds_test */ case GL_DEPTH_BOUNDS_TEST_EXT: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; CHECK_EXTENSION(EXT_depth_bounds_test); return ctx->Depth.BoundsTest; /* GL_ARB_depth_clamp */ case GL_DEPTH_CLAMP: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; CHECK_EXTENSION(ARB_depth_clamp); return ctx->Transform.DepthClamp; case GL_FRAGMENT_SHADER_ATI: if (ctx->API != API_OPENGL_COMPAT) goto invalid_enum_error; CHECK_EXTENSION(ATI_fragment_shader); return ctx->ATIFragmentShader.Enabled; case GL_TEXTURE_CUBE_MAP_SEAMLESS: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; CHECK_EXTENSION(ARB_seamless_cube_map); return ctx->Texture.CubeMapSeamless; case GL_RASTERIZER_DISCARD: if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) goto invalid_enum_error; CHECK_EXTENSION(EXT_transform_feedback); return ctx->RasterDiscard; /* GL_NV_primitive_restart */ case GL_PRIMITIVE_RESTART_NV: if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.NV_primitive_restart) { goto invalid_enum_error; } return ctx->Array.PrimitiveRestart; /* GL 3.1 primitive restart */ case GL_PRIMITIVE_RESTART: if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 31) { goto invalid_enum_error; } return ctx->Array.PrimitiveRestart; case GL_PRIMITIVE_RESTART_FIXED_INDEX: if (!_mesa_is_gles3(ctx) && !ctx->Extensions.ARB_ES3_compatibility) { goto invalid_enum_error; } return ctx->Array.PrimitiveRestartFixedIndex; /* GL3.0 - GL_framebuffer_sRGB */ case GL_FRAMEBUFFER_SRGB_EXT: if (!_mesa_is_desktop_gl(ctx)) goto invalid_enum_error; CHECK_EXTENSION(EXT_framebuffer_sRGB); return ctx->Color.sRGBEnabled; /* GL_OES_EGL_image_external */ case GL_TEXTURE_EXTERNAL_OES: if (!_mesa_is_gles(ctx)) goto invalid_enum_error; CHECK_EXTENSION(OES_EGL_image_external); return is_texture_enabled(ctx, TEXTURE_EXTERNAL_BIT); /* ARB_texture_multisample */ case GL_SAMPLE_MASK: if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx)) goto invalid_enum_error; CHECK_EXTENSION(ARB_texture_multisample); return ctx->Multisample.SampleMask; /* ARB_sample_shading */ case GL_SAMPLE_SHADING: if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) goto invalid_enum_error; CHECK_EXTENSION(ARB_sample_shading); return ctx->Multisample.SampleShading; case GL_BLEND_ADVANCED_COHERENT_KHR: CHECK_EXTENSION(KHR_blend_equation_advanced_coherent); return ctx->Color.BlendCoherent; case GL_CONSERVATIVE_RASTERIZATION_INTEL: CHECK_EXTENSION(INTEL_conservative_rasterization); return ctx->IntelConservativeRasterization; case GL_TILE_RASTER_ORDER_FIXED_MESA: CHECK_EXTENSION(MESA_tile_raster_order); return ctx->TileRasterOrderFixed; case GL_TILE_RASTER_ORDER_INCREASING_X_MESA: CHECK_EXTENSION(MESA_tile_raster_order); return ctx->TileRasterOrderIncreasingX; case GL_TILE_RASTER_ORDER_INCREASING_Y_MESA: CHECK_EXTENSION(MESA_tile_raster_order); return ctx->TileRasterOrderIncreasingY; default: goto invalid_enum_error; } return GL_FALSE; invalid_enum_error: _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(%s)", _mesa_enum_to_string(cap)); return GL_FALSE; }