| /** |
| * \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 "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 "api_arrayelt.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; |
| GLbitfield64 flag; |
| GLboolean *var; |
| |
| switch (cap) { |
| case GL_VERTEX_ARRAY: |
| var = &vao->VertexAttrib[VERT_ATTRIB_POS].Enabled; |
| flag = VERT_BIT_POS; |
| break; |
| case GL_NORMAL_ARRAY: |
| var = &vao->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled; |
| flag = VERT_BIT_NORMAL; |
| break; |
| case GL_COLOR_ARRAY: |
| var = &vao->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled; |
| flag = VERT_BIT_COLOR0; |
| break; |
| case GL_INDEX_ARRAY: |
| var = &vao->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled; |
| flag = VERT_BIT_COLOR_INDEX; |
| break; |
| case GL_TEXTURE_COORD_ARRAY: |
| var = &vao->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].Enabled; |
| flag = VERT_BIT_TEX(ctx->Array.ActiveTexture); |
| break; |
| case GL_EDGE_FLAG_ARRAY: |
| var = &vao->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled; |
| flag = VERT_BIT_EDGEFLAG; |
| break; |
| case GL_FOG_COORDINATE_ARRAY_EXT: |
| var = &vao->VertexAttrib[VERT_ATTRIB_FOG].Enabled; |
| flag = VERT_BIT_FOG; |
| break; |
| case GL_SECONDARY_COLOR_ARRAY_EXT: |
| var = &vao->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled; |
| flag = VERT_BIT_COLOR1; |
| break; |
| |
| case GL_POINT_SIZE_ARRAY_OES: |
| var = &vao->VertexAttrib[VERT_ATTRIB_POINT_SIZE].Enabled; |
| flag = 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; |
| } |
| var = &ctx->Array.PrimitiveRestart; |
| flag = 0; |
| break; |
| |
| default: |
| goto invalid_enum_error; |
| } |
| |
| if (*var == state) |
| return; |
| |
| FLUSH_VERTICES(ctx, _NEW_ARRAY); |
| |
| _ae_invalidate_state(ctx, _NEW_ARRAY); |
| |
| *var = state; |
| |
| update_derived_primitive_restart_state(ctx); |
| |
| if (state) |
| vao->_Enabled |= flag; |
| else |
| vao->_Enabled &= ~flag; |
| |
| vao->NewArrays |= flag; |
| |
| 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); |
| 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; |
| FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); |
| 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; |
| FLUSH_VERTICES(ctx, _NEW_BUFFERS); |
| 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; |
| FLUSH_VERTICES(ctx, _NEW_COLOR); |
| 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) { |
| FLUSH_VERTICES(ctx, _NEW_COLOR); |
| 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; |
| |
| FLUSH_VERTICES(ctx, _NEW_TRANSFORM); |
| |
| if (state) { |
| ctx->Transform.ClipPlanesEnabled |= (1 << p); |
| _mesa_update_clip_plane(ctx, p); |
| } |
| 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, _NEW_POLYGON); |
| ctx->Polygon.CullFlag = state; |
| break; |
| case GL_DEPTH_TEST: |
| if (ctx->Depth.Test == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_DEPTH); |
| 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, _NEW_COLOR); |
| 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; |
| 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, _NEW_LINE); |
| 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, _NEW_LINE); |
| 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, _NEW_COLOR); |
| 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, _NEW_COLOR); |
| 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, _NEW_POLYGON); |
| 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, _NEW_POLYGON); |
| 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, _NEW_POLYGON); |
| 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, _NEW_POLYGON); |
| ctx->Polygon.OffsetLine = state; |
| break; |
| case GL_POLYGON_OFFSET_FILL: |
| if (ctx->Polygon.OffsetFill == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_POLYGON); |
| 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, _NEW_SCISSOR); |
| ctx->Scissor.EnableFlags = newEnabled; |
| } |
| } |
| break; |
| case GL_STENCIL_TEST: |
| if (ctx->Stencil.Enabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_STENCIL); |
| 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); |
| 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); |
| 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, _NEW_MULTISAMPLE); |
| 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, _NEW_MULTISAMPLE); |
| ctx->Multisample.SampleAlphaToOne = state; |
| break; |
| case GL_SAMPLE_COVERAGE_ARB: |
| if (ctx->Multisample.SampleCoverage == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); |
| 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, _NEW_MULTISAMPLE); |
| 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, _NEW_MULTISAMPLE); |
| 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, _NEW_TRANSFORM); |
| 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, _NEW_STENCIL); |
| 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, _NEW_DEPTH); |
| 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, _NEW_TRANSFORM); |
| 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); |
| 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; |
| |
| /* 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, _NEW_TRANSFORM); |
| 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, _NEW_TRANSFORM); |
| 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, _NEW_MULTISAMPLE); |
| 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, _NEW_COLOR); |
| 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) { |
| FLUSH_VERTICES(ctx, _NEW_COLOR); |
| 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, _NEW_SCISSOR); |
| 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; |
| |
| 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; |
| } |
