| /** |
| * \file enable.c |
| * Enable/disable/query GL capabilities. |
| */ |
| |
| /* |
| * Mesa 3-D graphics library |
| * Version: 7.0.3 |
| * |
| * 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 |
| * BRIAN PAUL 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 "context.h" |
| #include "enable.h" |
| #include "light.h" |
| #include "macros.h" |
| #include "simple_list.h" |
| #include "mtypes.h" |
| #include "enums.h" |
| #include "math/m_matrix.h" |
| #include "math/m_xform.h" |
| #include "api_arrayelt.h" |
| |
| |
| |
| #define CHECK_EXTENSION(EXTNAME, CAP) \ |
| if (!ctx->Extensions.EXTNAME) { \ |
| _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(0x%x)", \ |
| state ? "Enable" : "Disable", CAP); \ |
| return; \ |
| } |
| |
| |
| /** |
| * Helper to enable/disable client-side state. |
| */ |
| static void |
| client_state(GLcontext *ctx, GLenum cap, GLboolean state) |
| { |
| GLuint flag; |
| GLboolean *var; |
| |
| switch (cap) { |
| case GL_VERTEX_ARRAY: |
| var = &ctx->Array.ArrayObj->Vertex.Enabled; |
| flag = _NEW_ARRAY_VERTEX; |
| break; |
| case GL_NORMAL_ARRAY: |
| var = &ctx->Array.ArrayObj->Normal.Enabled; |
| flag = _NEW_ARRAY_NORMAL; |
| break; |
| case GL_COLOR_ARRAY: |
| var = &ctx->Array.ArrayObj->Color.Enabled; |
| flag = _NEW_ARRAY_COLOR0; |
| break; |
| case GL_INDEX_ARRAY: |
| var = &ctx->Array.ArrayObj->Index.Enabled; |
| flag = _NEW_ARRAY_INDEX; |
| break; |
| case GL_TEXTURE_COORD_ARRAY: |
| var = &ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled; |
| flag = _NEW_ARRAY_TEXCOORD(ctx->Array.ActiveTexture); |
| break; |
| case GL_EDGE_FLAG_ARRAY: |
| var = &ctx->Array.ArrayObj->EdgeFlag.Enabled; |
| flag = _NEW_ARRAY_EDGEFLAG; |
| break; |
| case GL_FOG_COORDINATE_ARRAY_EXT: |
| var = &ctx->Array.ArrayObj->FogCoord.Enabled; |
| flag = _NEW_ARRAY_FOGCOORD; |
| break; |
| case GL_SECONDARY_COLOR_ARRAY_EXT: |
| var = &ctx->Array.ArrayObj->SecondaryColor.Enabled; |
| flag = _NEW_ARRAY_COLOR1; |
| break; |
| |
| #if FEATURE_NV_vertex_program |
| case GL_VERTEX_ATTRIB_ARRAY0_NV: |
| case GL_VERTEX_ATTRIB_ARRAY1_NV: |
| case GL_VERTEX_ATTRIB_ARRAY2_NV: |
| case GL_VERTEX_ATTRIB_ARRAY3_NV: |
| case GL_VERTEX_ATTRIB_ARRAY4_NV: |
| case GL_VERTEX_ATTRIB_ARRAY5_NV: |
| case GL_VERTEX_ATTRIB_ARRAY6_NV: |
| case GL_VERTEX_ATTRIB_ARRAY7_NV: |
| case GL_VERTEX_ATTRIB_ARRAY8_NV: |
| case GL_VERTEX_ATTRIB_ARRAY9_NV: |
| case GL_VERTEX_ATTRIB_ARRAY10_NV: |
| case GL_VERTEX_ATTRIB_ARRAY11_NV: |
| case GL_VERTEX_ATTRIB_ARRAY12_NV: |
| case GL_VERTEX_ATTRIB_ARRAY13_NV: |
| case GL_VERTEX_ATTRIB_ARRAY14_NV: |
| case GL_VERTEX_ATTRIB_ARRAY15_NV: |
| CHECK_EXTENSION(NV_vertex_program, cap); |
| { |
| GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV; |
| var = &ctx->Array.ArrayObj->VertexAttrib[n].Enabled; |
| flag = _NEW_ARRAY_ATTRIB(n); |
| } |
| break; |
| #endif /* FEATURE_NV_vertex_program */ |
| |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, |
| "glEnable/DisableClientState(0x%x)", cap); |
| return; |
| } |
| |
| if (*var == state) |
| return; |
| |
| FLUSH_VERTICES(ctx, _NEW_ARRAY); |
| ctx->Array.NewState |= flag; |
| |
| _ae_invalidate_state(ctx, _NEW_ARRAY); |
| |
| *var = state; |
| |
| if (state) |
| ctx->Array.ArrayObj->_Enabled |= flag; |
| else |
| ctx->Array.ArrayObj->_Enabled &= ~flag; |
| |
| if (ctx->Driver.Enable) { |
| ctx->Driver.Enable( ctx, cap, state ); |
| } |
| } |
| |
| |
| /** |
| * 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); |
| ASSERT_OUTSIDE_BEGIN_END(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); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| client_state( ctx, cap, GL_FALSE ); |
| } |
| |
| |
| #undef CHECK_EXTENSION |
| #define CHECK_EXTENSION(EXTNAME, CAP) \ |
| if (!ctx->Extensions.EXTNAME) { \ |
| _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \ |
| state ? "Enable" : "Disable", CAP); \ |
| return; \ |
| } |
| |
| #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \ |
| if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \ |
| _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \ |
| state ? "Enable" : "Disable", CAP); \ |
| return; \ |
| } |
| |
| |
| /** |
| * Helper function to enable or disable a texture target. |
| */ |
| static GLboolean |
| enable_texture(GLcontext *ctx, GLboolean state, GLbitfield bit) |
| { |
| const GLuint curr = ctx->Texture.CurrentUnit; |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr]; |
| const GLuint newenabled = (!state) |
| ? (texUnit->Enabled & ~bit) : (texUnit->Enabled | bit); |
| |
| if (!ctx->DrawBuffer->Visual.rgbMode || texUnit->Enabled == newenabled) |
| return GL_FALSE; |
| |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->Enabled = newenabled; |
| return GL_TRUE; |
| } |
| |
| |
| /** |
| * 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(GLcontext *ctx, GLenum cap, GLboolean state) |
| { |
| if (MESA_VERBOSE & VERBOSE_API) |
| _mesa_debug(ctx, "%s %s (newstate is %x)\n", |
| state ? "glEnable" : "glDisable", |
| _mesa_lookup_enum_by_nr(cap), |
| ctx->NewState); |
| |
| switch (cap) { |
| case GL_ALPHA_TEST: |
| if (ctx->Color.AlphaEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_COLOR); |
| ctx->Color.AlphaEnabled = state; |
| break; |
| case GL_AUTO_NORMAL: |
| if (ctx->Eval.AutoNormal == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.AutoNormal = state; |
| break; |
| case GL_BLEND: |
| if (ctx->Color.BlendEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_COLOR); |
| ctx->Color.BlendEnabled = state; |
| break; |
| #if FEATURE_userclip |
| case GL_CLIP_PLANE0: |
| case GL_CLIP_PLANE1: |
| case GL_CLIP_PLANE2: |
| case GL_CLIP_PLANE3: |
| case GL_CLIP_PLANE4: |
| case GL_CLIP_PLANE5: |
| { |
| const GLuint p = cap - GL_CLIP_PLANE0; |
| |
| if ((ctx->Transform.ClipPlanesEnabled & (1 << p)) == ((GLuint) state << p)) |
| return; |
| |
| FLUSH_VERTICES(ctx, _NEW_TRANSFORM); |
| |
| if (state) { |
| ctx->Transform.ClipPlanesEnabled |= (1 << p); |
| |
| if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top)) |
| _math_matrix_analyse( ctx->ProjectionMatrixStack.Top ); |
| |
| /* This derived state also calculated in clip.c and |
| * from _mesa_update_state() on changes to EyeUserPlane |
| * and ctx->ProjectionMatrix respectively. |
| */ |
| _mesa_transform_vector( ctx->Transform._ClipUserPlane[p], |
| ctx->Transform.EyeUserPlane[p], |
| ctx->ProjectionMatrixStack.Top->inv ); |
| } |
| else { |
| ctx->Transform.ClipPlanesEnabled &= ~(1 << p); |
| } |
| } |
| break; |
| #endif |
| case GL_COLOR_MATERIAL: |
| 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_CULL_VERTEX_EXT: |
| CHECK_EXTENSION(EXT_cull_vertex, cap); |
| if (ctx->Transform.CullVertexFlag == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TRANSFORM); |
| ctx->Transform.CullVertexFlag = state; |
| break; |
| case GL_DEPTH_TEST: |
| if (state && ctx->DrawBuffer->Visual.depthBits == 0) { |
| _mesa_warning(ctx,"glEnable(GL_DEPTH_TEST) but no depth buffer"); |
| return; |
| } |
| if (ctx->Depth.Test == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_DEPTH); |
| ctx->Depth.Test = state; |
| break; |
| case GL_DITHER: |
| if (ctx->NoDither) { |
| state = GL_FALSE; /* MESA_NO_DITHER env var */ |
| } |
| if (ctx->Color.DitherFlag == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_COLOR); |
| ctx->Color.DitherFlag = state; |
| break; |
| case GL_FOG: |
| if (ctx->Fog.Enabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_FOG); |
| ctx->Fog.Enabled = state; |
| break; |
| case GL_HISTOGRAM: |
| CHECK_EXTENSION(EXT_histogram, cap); |
| if (ctx->Pixel.HistogramEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PIXEL); |
| ctx->Pixel.HistogramEnabled = 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->Light.Light[cap-GL_LIGHT0].Enabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_LIGHT); |
| ctx->Light.Light[cap-GL_LIGHT0].Enabled = state; |
| if (state) { |
| insert_at_tail(&ctx->Light.EnabledList, |
| &ctx->Light.Light[cap-GL_LIGHT0]); |
| } |
| else { |
| remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]); |
| } |
| break; |
| case GL_LIGHTING: |
| if (ctx->Light.Enabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_LIGHT); |
| ctx->Light.Enabled = state; |
| if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) |
| ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE; |
| else |
| ctx->_TriangleCaps &= ~DD_TRI_LIGHT_TWOSIDE; |
| break; |
| case GL_LINE_SMOOTH: |
| if (ctx->Line.SmoothFlag == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_LINE); |
| ctx->Line.SmoothFlag = state; |
| ctx->_TriangleCaps ^= DD_LINE_SMOOTH; |
| break; |
| case GL_LINE_STIPPLE: |
| if (ctx->Line.StippleFlag == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_LINE); |
| ctx->Line.StippleFlag = state; |
| ctx->_TriangleCaps ^= DD_LINE_STIPPLE; |
| break; |
| case GL_INDEX_LOGIC_OP: |
| if (ctx->Color.IndexLogicOpEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_COLOR); |
| ctx->Color.IndexLogicOpEnabled = state; |
| break; |
| case GL_COLOR_LOGIC_OP: |
| if (ctx->Color.ColorLogicOpEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_COLOR); |
| ctx->Color.ColorLogicOpEnabled = state; |
| break; |
| case GL_MAP1_COLOR_4: |
| if (ctx->Eval.Map1Color4 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map1Color4 = state; |
| break; |
| case GL_MAP1_INDEX: |
| if (ctx->Eval.Map1Index == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map1Index = state; |
| break; |
| case GL_MAP1_NORMAL: |
| if (ctx->Eval.Map1Normal == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map1Normal = state; |
| break; |
| case GL_MAP1_TEXTURE_COORD_1: |
| if (ctx->Eval.Map1TextureCoord1 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map1TextureCoord1 = state; |
| break; |
| case GL_MAP1_TEXTURE_COORD_2: |
| if (ctx->Eval.Map1TextureCoord2 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map1TextureCoord2 = state; |
| break; |
| case GL_MAP1_TEXTURE_COORD_3: |
| if (ctx->Eval.Map1TextureCoord3 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map1TextureCoord3 = state; |
| break; |
| case GL_MAP1_TEXTURE_COORD_4: |
| if (ctx->Eval.Map1TextureCoord4 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map1TextureCoord4 = state; |
| break; |
| case GL_MAP1_VERTEX_3: |
| if (ctx->Eval.Map1Vertex3 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map1Vertex3 = state; |
| break; |
| case GL_MAP1_VERTEX_4: |
| if (ctx->Eval.Map1Vertex4 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map1Vertex4 = state; |
| break; |
| case GL_MAP2_COLOR_4: |
| if (ctx->Eval.Map2Color4 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map2Color4 = state; |
| break; |
| case GL_MAP2_INDEX: |
| if (ctx->Eval.Map2Index == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map2Index = state; |
| break; |
| case GL_MAP2_NORMAL: |
| if (ctx->Eval.Map2Normal == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map2Normal = state; |
| break; |
| case GL_MAP2_TEXTURE_COORD_1: |
| if (ctx->Eval.Map2TextureCoord1 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map2TextureCoord1 = state; |
| break; |
| case GL_MAP2_TEXTURE_COORD_2: |
| if (ctx->Eval.Map2TextureCoord2 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map2TextureCoord2 = state; |
| break; |
| case GL_MAP2_TEXTURE_COORD_3: |
| if (ctx->Eval.Map2TextureCoord3 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map2TextureCoord3 = state; |
| break; |
| case GL_MAP2_TEXTURE_COORD_4: |
| if (ctx->Eval.Map2TextureCoord4 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map2TextureCoord4 = state; |
| break; |
| case GL_MAP2_VERTEX_3: |
| if (ctx->Eval.Map2Vertex3 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map2Vertex3 = state; |
| break; |
| case GL_MAP2_VERTEX_4: |
| if (ctx->Eval.Map2Vertex4 == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map2Vertex4 = state; |
| break; |
| case GL_MINMAX: |
| if (ctx->Pixel.MinMaxEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PIXEL); |
| ctx->Pixel.MinMaxEnabled = state; |
| break; |
| case GL_NORMALIZE: |
| if (ctx->Transform.Normalize == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TRANSFORM); |
| ctx->Transform.Normalize = state; |
| break; |
| case GL_POINT_SMOOTH: |
| if (ctx->Point.SmoothFlag == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_POINT); |
| ctx->Point.SmoothFlag = state; |
| ctx->_TriangleCaps ^= DD_POINT_SMOOTH; |
| break; |
| case GL_POLYGON_SMOOTH: |
| if (ctx->Polygon.SmoothFlag == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_POLYGON); |
| ctx->Polygon.SmoothFlag = state; |
| ctx->_TriangleCaps ^= DD_TRI_SMOOTH; |
| break; |
| case GL_POLYGON_STIPPLE: |
| if (ctx->Polygon.StippleFlag == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_POLYGON); |
| ctx->Polygon.StippleFlag = state; |
| ctx->_TriangleCaps ^= DD_TRI_STIPPLE; |
| break; |
| case GL_POLYGON_OFFSET_POINT: |
| if (ctx->Polygon.OffsetPoint == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_POLYGON); |
| ctx->Polygon.OffsetPoint = state; |
| break; |
| case GL_POLYGON_OFFSET_LINE: |
| if (ctx->Polygon.OffsetLine == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_POLYGON); |
| ctx->Polygon.OffsetLine = state; |
| break; |
| case GL_POLYGON_OFFSET_FILL: |
| /*case GL_POLYGON_OFFSET_EXT:*/ |
| if (ctx->Polygon.OffsetFill == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_POLYGON); |
| ctx->Polygon.OffsetFill = state; |
| break; |
| case GL_RESCALE_NORMAL_EXT: |
| if (ctx->Transform.RescaleNormals == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TRANSFORM); |
| ctx->Transform.RescaleNormals = state; |
| break; |
| case GL_SCISSOR_TEST: |
| if (ctx->Scissor.Enabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_SCISSOR); |
| ctx->Scissor.Enabled = state; |
| break; |
| case GL_SHARED_TEXTURE_PALETTE_EXT: |
| if (ctx->Texture.SharedPalette == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| ctx->Texture.SharedPalette = state; |
| break; |
| case GL_STENCIL_TEST: |
| if (state && ctx->DrawBuffer->Visual.stencilBits == 0) { |
| _mesa_warning(ctx, |
| "glEnable(GL_STENCIL_TEST) but no stencil buffer"); |
| return; |
| } |
| if (ctx->Stencil.Enabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_STENCIL); |
| ctx->Stencil.Enabled = state; |
| break; |
| case GL_TEXTURE_1D: |
| if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) { |
| return; |
| } |
| break; |
| case GL_TEXTURE_2D: |
| if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) { |
| return; |
| } |
| break; |
| case GL_TEXTURE_3D: |
| if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) { |
| return; |
| } |
| break; |
| case GL_TEXTURE_GEN_Q: { |
| GLuint unit = ctx->Texture.CurrentUnit; |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; |
| GLuint newenabled = texUnit->TexGenEnabled & ~Q_BIT; |
| if (state) |
| newenabled |= Q_BIT; |
| if (texUnit->TexGenEnabled == newenabled) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->TexGenEnabled = newenabled; |
| break; |
| } |
| case GL_TEXTURE_GEN_R: { |
| GLuint unit = ctx->Texture.CurrentUnit; |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; |
| GLuint newenabled = texUnit->TexGenEnabled & ~R_BIT; |
| if (state) |
| newenabled |= R_BIT; |
| if (texUnit->TexGenEnabled == newenabled) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->TexGenEnabled = newenabled; |
| break; |
| } |
| case GL_TEXTURE_GEN_S: { |
| GLuint unit = ctx->Texture.CurrentUnit; |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; |
| GLuint newenabled = texUnit->TexGenEnabled & ~S_BIT; |
| if (state) |
| newenabled |= S_BIT; |
| if (texUnit->TexGenEnabled == newenabled) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->TexGenEnabled = newenabled; |
| break; |
| } |
| case GL_TEXTURE_GEN_T: { |
| GLuint unit = ctx->Texture.CurrentUnit; |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; |
| GLuint newenabled = texUnit->TexGenEnabled & ~T_BIT; |
| if (state) |
| newenabled |= T_BIT; |
| if (texUnit->TexGenEnabled == newenabled) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->TexGenEnabled = newenabled; |
| break; |
| } |
| |
| /* |
| * CLIENT STATE!!! |
| */ |
| case GL_VERTEX_ARRAY: |
| case GL_NORMAL_ARRAY: |
| case GL_COLOR_ARRAY: |
| case GL_INDEX_ARRAY: |
| case GL_TEXTURE_COORD_ARRAY: |
| case GL_EDGE_FLAG_ARRAY: |
| case GL_FOG_COORDINATE_ARRAY_EXT: |
| case GL_SECONDARY_COLOR_ARRAY_EXT: |
| client_state( ctx, cap, state ); |
| return; |
| |
| /* GL_SGI_color_table */ |
| case GL_COLOR_TABLE_SGI: |
| CHECK_EXTENSION(SGI_color_table, cap); |
| if (ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION] == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PIXEL); |
| ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION] = state; |
| break; |
| case GL_POST_CONVOLUTION_COLOR_TABLE_SGI: |
| CHECK_EXTENSION(SGI_color_table, cap); |
| if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION] == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PIXEL); |
| ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION] = state; |
| break; |
| case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI: |
| CHECK_EXTENSION(SGI_color_table, cap); |
| if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX] == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PIXEL); |
| ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX] = state; |
| break; |
| case GL_TEXTURE_COLOR_TABLE_SGI: |
| CHECK_EXTENSION(SGI_texture_color_table, cap); |
| if (ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled = state; |
| break; |
| |
| /* GL_EXT_convolution */ |
| case GL_CONVOLUTION_1D: |
| CHECK_EXTENSION(EXT_convolution, cap); |
| if (ctx->Pixel.Convolution1DEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PIXEL); |
| ctx->Pixel.Convolution1DEnabled = state; |
| break; |
| case GL_CONVOLUTION_2D: |
| CHECK_EXTENSION(EXT_convolution, cap); |
| if (ctx->Pixel.Convolution2DEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PIXEL); |
| ctx->Pixel.Convolution2DEnabled = state; |
| break; |
| case GL_SEPARABLE_2D: |
| CHECK_EXTENSION(EXT_convolution, cap); |
| if (ctx->Pixel.Separable2DEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PIXEL); |
| ctx->Pixel.Separable2DEnabled = state; |
| break; |
| |
| /* GL_ARB_texture_cube_map */ |
| case GL_TEXTURE_CUBE_MAP_ARB: |
| 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: |
| CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program, cap); |
| if (ctx->Fog.ColorSumEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_FOG); |
| ctx->Fog.ColorSumEnabled = state; |
| break; |
| |
| /* GL_ARB_multisample */ |
| case GL_MULTISAMPLE_ARB: |
| CHECK_EXTENSION(ARB_multisample, cap); |
| if (ctx->Multisample.Enabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); |
| ctx->Multisample.Enabled = state; |
| break; |
| case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB: |
| CHECK_EXTENSION(ARB_multisample, cap); |
| if (ctx->Multisample.SampleAlphaToCoverage == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); |
| ctx->Multisample.SampleAlphaToCoverage = state; |
| break; |
| case GL_SAMPLE_ALPHA_TO_ONE_ARB: |
| CHECK_EXTENSION(ARB_multisample, cap); |
| if (ctx->Multisample.SampleAlphaToOne == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); |
| ctx->Multisample.SampleAlphaToOne = state; |
| break; |
| case GL_SAMPLE_COVERAGE_ARB: |
| CHECK_EXTENSION(ARB_multisample, cap); |
| if (ctx->Multisample.SampleCoverage == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); |
| ctx->Multisample.SampleCoverage = state; |
| break; |
| case GL_SAMPLE_COVERAGE_INVERT_ARB: |
| CHECK_EXTENSION(ARB_multisample, cap); |
| if (ctx->Multisample.SampleCoverageInvert == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); |
| ctx->Multisample.SampleCoverageInvert = state; |
| break; |
| |
| /* GL_IBM_rasterpos_clip */ |
| case GL_RASTER_POSITION_UNCLIPPED_IBM: |
| CHECK_EXTENSION(IBM_rasterpos_clip, cap); |
| 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: |
| 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; |
| |
| #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program |
| case GL_VERTEX_PROGRAM_ARB: |
| CHECK_EXTENSION2(ARB_vertex_program, NV_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: |
| CHECK_EXTENSION2(ARB_vertex_program, NV_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: |
| CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap); |
| if (ctx->VertexProgram.TwoSideEnabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PROGRAM); |
| ctx->VertexProgram.TwoSideEnabled = state; |
| break; |
| #endif |
| #if FEATURE_NV_vertex_program |
| case GL_MAP1_VERTEX_ATTRIB0_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB1_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB2_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB3_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB4_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB5_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB6_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB7_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB8_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB9_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB10_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB11_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB12_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB13_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB14_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB15_4_NV: |
| CHECK_EXTENSION(NV_vertex_program, cap); |
| { |
| const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV); |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map1Attrib[map] = state; |
| } |
| break; |
| case GL_MAP2_VERTEX_ATTRIB0_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB1_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB2_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB3_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB4_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB5_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB6_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB7_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB8_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB9_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB10_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB11_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB12_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB13_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB14_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB15_4_NV: |
| CHECK_EXTENSION(NV_vertex_program, cap); |
| { |
| const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV); |
| FLUSH_VERTICES(ctx, _NEW_EVAL); |
| ctx->Eval.Map2Attrib[map] = state; |
| } |
| break; |
| #endif /* FEATURE_NV_vertex_program */ |
| |
| #if FEATURE_NV_fragment_program |
| case GL_FRAGMENT_PROGRAM_NV: |
| CHECK_EXTENSION(NV_fragment_program, cap); |
| if (ctx->FragmentProgram.Enabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PROGRAM); |
| ctx->FragmentProgram.Enabled = state; |
| break; |
| #endif /* FEATURE_NV_fragment_program */ |
| |
| /* GL_NV_texture_rectangle */ |
| case GL_TEXTURE_RECTANGLE_NV: |
| 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: |
| 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->_TriangleCaps |= DD_TRI_TWOSTENCIL; |
| else |
| ctx->_TriangleCaps &= ~DD_TRI_TWOSTENCIL; |
| break; |
| |
| #if FEATURE_ARB_fragment_program |
| case GL_FRAGMENT_PROGRAM_ARB: |
| CHECK_EXTENSION(ARB_fragment_program, cap); |
| if (ctx->FragmentProgram.Enabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PROGRAM); |
| ctx->FragmentProgram.Enabled = state; |
| break; |
| #endif /* FEATURE_ARB_fragment_program */ |
| |
| /* GL_EXT_depth_bounds_test */ |
| case GL_DEPTH_BOUNDS_TEST_EXT: |
| CHECK_EXTENSION(EXT_depth_bounds_test, cap); |
| if (state && ctx->DrawBuffer->Visual.depthBits == 0) { |
| _mesa_warning(ctx, |
| "glEnable(GL_DEPTH_BOUNDS_TEST_EXT) but no depth buffer"); |
| return; |
| } |
| if (ctx->Depth.BoundsTest == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_DEPTH); |
| ctx->Depth.BoundsTest = state; |
| break; |
| |
| /* GL_MESA_program_debug */ |
| case GL_FRAGMENT_PROGRAM_CALLBACK_MESA: |
| CHECK_EXTENSION(MESA_program_debug, cap); |
| ctx->FragmentProgram.CallbackEnabled = state; |
| break; |
| case GL_VERTEX_PROGRAM_CALLBACK_MESA: |
| CHECK_EXTENSION(MESA_program_debug, cap); |
| ctx->VertexProgram.CallbackEnabled = state; |
| break; |
| |
| #if FEATURE_ATI_fragment_shader |
| case GL_FRAGMENT_SHADER_ATI: |
| CHECK_EXTENSION(ATI_fragment_shader, cap); |
| if (ctx->ATIFragmentShader.Enabled == state) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PROGRAM); |
| ctx->ATIFragmentShader.Enabled = state; |
| break; |
| #endif |
| |
| /* GL_MESA_texture_array */ |
| case GL_TEXTURE_1D_ARRAY_EXT: |
| CHECK_EXTENSION(MESA_texture_array, cap); |
| if (!enable_texture(ctx, state, TEXTURE_1D_ARRAY_BIT)) { |
| return; |
| } |
| break; |
| |
| case GL_TEXTURE_2D_ARRAY_EXT: |
| CHECK_EXTENSION(MESA_texture_array, cap); |
| if (!enable_texture(ctx, state, TEXTURE_2D_ARRAY_BIT)) { |
| return; |
| } |
| break; |
| |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, |
| "%s(0x%x)", state ? "glEnable" : "glDisable", cap); |
| return; |
| } |
| |
| if (ctx->Driver.Enable) { |
| ctx->Driver.Enable( ctx, cap, state ); |
| } |
| } |
| |
| |
| /** |
| * Enable GL capability. Called by glEnable() |
| * \param cap state to enable. |
| */ |
| void GLAPIENTRY |
| _mesa_Enable( GLenum cap ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(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); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| _mesa_set_enable( ctx, cap, GL_FALSE ); |
| } |
| |
| |
| #undef CHECK_EXTENSION |
| #define CHECK_EXTENSION(EXTNAME) \ |
| if (!ctx->Extensions.EXTNAME) { \ |
| _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \ |
| return GL_FALSE; \ |
| } |
| |
| #undef CHECK_EXTENSION2 |
| #define CHECK_EXTENSION2(EXT1, EXT2) \ |
| if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \ |
| _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \ |
| return GL_FALSE; \ |
| } |
| |
| |
| /** |
| * Helper function to determine whether a texture target is enabled. |
| */ |
| static GLboolean |
| is_texture_enabled(GLcontext *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); |
| switch (cap) { |
| case GL_ALPHA_TEST: |
| return ctx->Color.AlphaEnabled; |
| case GL_AUTO_NORMAL: |
| return ctx->Eval.AutoNormal; |
| case GL_BLEND: |
| return ctx->Color.BlendEnabled; |
| case GL_CLIP_PLANE0: |
| case GL_CLIP_PLANE1: |
| case GL_CLIP_PLANE2: |
| case GL_CLIP_PLANE3: |
| case GL_CLIP_PLANE4: |
| case GL_CLIP_PLANE5: |
| return (ctx->Transform.ClipPlanesEnabled >> (cap - GL_CLIP_PLANE0)) & 1; |
| case GL_COLOR_MATERIAL: |
| return ctx->Light.ColorMaterialEnabled; |
| case GL_CULL_FACE: |
| return ctx->Polygon.CullFlag; |
| case GL_DEPTH_TEST: |
| return ctx->Depth.Test; |
| case GL_DITHER: |
| return ctx->Color.DitherFlag; |
| case GL_FOG: |
| return ctx->Fog.Enabled; |
| case GL_LIGHTING: |
| 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: |
| return ctx->Light.Light[cap-GL_LIGHT0].Enabled; |
| case GL_LINE_SMOOTH: |
| return ctx->Line.SmoothFlag; |
| case GL_LINE_STIPPLE: |
| return ctx->Line.StippleFlag; |
| case GL_INDEX_LOGIC_OP: |
| return ctx->Color.IndexLogicOpEnabled; |
| case GL_COLOR_LOGIC_OP: |
| return ctx->Color.ColorLogicOpEnabled; |
| case GL_MAP1_COLOR_4: |
| return ctx->Eval.Map1Color4; |
| case GL_MAP1_INDEX: |
| return ctx->Eval.Map1Index; |
| case GL_MAP1_NORMAL: |
| return ctx->Eval.Map1Normal; |
| case GL_MAP1_TEXTURE_COORD_1: |
| return ctx->Eval.Map1TextureCoord1; |
| case GL_MAP1_TEXTURE_COORD_2: |
| return ctx->Eval.Map1TextureCoord2; |
| case GL_MAP1_TEXTURE_COORD_3: |
| return ctx->Eval.Map1TextureCoord3; |
| case GL_MAP1_TEXTURE_COORD_4: |
| return ctx->Eval.Map1TextureCoord4; |
| case GL_MAP1_VERTEX_3: |
| return ctx->Eval.Map1Vertex3; |
| case GL_MAP1_VERTEX_4: |
| return ctx->Eval.Map1Vertex4; |
| case GL_MAP2_COLOR_4: |
| return ctx->Eval.Map2Color4; |
| case GL_MAP2_INDEX: |
| return ctx->Eval.Map2Index; |
| case GL_MAP2_NORMAL: |
| return ctx->Eval.Map2Normal; |
| case GL_MAP2_TEXTURE_COORD_1: |
| return ctx->Eval.Map2TextureCoord1; |
| case GL_MAP2_TEXTURE_COORD_2: |
| return ctx->Eval.Map2TextureCoord2; |
| case GL_MAP2_TEXTURE_COORD_3: |
| return ctx->Eval.Map2TextureCoord3; |
| case GL_MAP2_TEXTURE_COORD_4: |
| return ctx->Eval.Map2TextureCoord4; |
| case GL_MAP2_VERTEX_3: |
| return ctx->Eval.Map2Vertex3; |
| case GL_MAP2_VERTEX_4: |
| return ctx->Eval.Map2Vertex4; |
| case GL_NORMALIZE: |
| return ctx->Transform.Normalize; |
| case GL_POINT_SMOOTH: |
| return ctx->Point.SmoothFlag; |
| case GL_POLYGON_SMOOTH: |
| return ctx->Polygon.SmoothFlag; |
| case GL_POLYGON_STIPPLE: |
| return ctx->Polygon.StippleFlag; |
| case GL_POLYGON_OFFSET_POINT: |
| return ctx->Polygon.OffsetPoint; |
| case GL_POLYGON_OFFSET_LINE: |
| return ctx->Polygon.OffsetLine; |
| case GL_POLYGON_OFFSET_FILL: |
| /*case GL_POLYGON_OFFSET_EXT:*/ |
| return ctx->Polygon.OffsetFill; |
| case GL_RESCALE_NORMAL_EXT: |
| return ctx->Transform.RescaleNormals; |
| case GL_SCISSOR_TEST: |
| return ctx->Scissor.Enabled; |
| case GL_SHARED_TEXTURE_PALETTE_EXT: |
| return ctx->Texture.SharedPalette; |
| case GL_STENCIL_TEST: |
| return ctx->Stencil.Enabled; |
| case GL_TEXTURE_1D: |
| return is_texture_enabled(ctx, TEXTURE_1D_BIT); |
| case GL_TEXTURE_2D: |
| return is_texture_enabled(ctx, TEXTURE_2D_BIT); |
| case GL_TEXTURE_3D: |
| return is_texture_enabled(ctx, TEXTURE_3D_BIT); |
| case GL_TEXTURE_GEN_Q: |
| { |
| const struct gl_texture_unit *texUnit; |
| texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE; |
| } |
| case GL_TEXTURE_GEN_R: |
| { |
| const struct gl_texture_unit *texUnit; |
| texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE; |
| } |
| case GL_TEXTURE_GEN_S: |
| { |
| const struct gl_texture_unit *texUnit; |
| texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE; |
| } |
| case GL_TEXTURE_GEN_T: |
| { |
| const struct gl_texture_unit *texUnit; |
| texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE; |
| } |
| |
| /* |
| * CLIENT STATE!!! |
| */ |
| case GL_VERTEX_ARRAY: |
| return (ctx->Array.ArrayObj->Vertex.Enabled != 0); |
| case GL_NORMAL_ARRAY: |
| return (ctx->Array.ArrayObj->Normal.Enabled != 0); |
| case GL_COLOR_ARRAY: |
| return (ctx->Array.ArrayObj->Color.Enabled != 0); |
| case GL_INDEX_ARRAY: |
| return (ctx->Array.ArrayObj->Index.Enabled != 0); |
| case GL_TEXTURE_COORD_ARRAY: |
| return (ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled != 0); |
| case GL_EDGE_FLAG_ARRAY: |
| return (ctx->Array.ArrayObj->EdgeFlag.Enabled != 0); |
| case GL_FOG_COORDINATE_ARRAY_EXT: |
| CHECK_EXTENSION(EXT_fog_coord); |
| return (ctx->Array.ArrayObj->FogCoord.Enabled != 0); |
| case GL_SECONDARY_COLOR_ARRAY_EXT: |
| CHECK_EXTENSION(EXT_secondary_color); |
| return (ctx->Array.ArrayObj->SecondaryColor.Enabled != 0); |
| |
| /* GL_EXT_histogram */ |
| case GL_HISTOGRAM: |
| CHECK_EXTENSION(EXT_histogram); |
| return ctx->Pixel.HistogramEnabled; |
| case GL_MINMAX: |
| CHECK_EXTENSION(EXT_histogram); |
| return ctx->Pixel.MinMaxEnabled; |
| |
| /* GL_SGI_color_table */ |
| case GL_COLOR_TABLE_SGI: |
| CHECK_EXTENSION(SGI_color_table); |
| return ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION]; |
| case GL_POST_CONVOLUTION_COLOR_TABLE_SGI: |
| CHECK_EXTENSION(SGI_color_table); |
| return ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION]; |
| case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI: |
| CHECK_EXTENSION(SGI_color_table); |
| return ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX]; |
| |
| /* GL_SGI_texture_color_table */ |
| case GL_TEXTURE_COLOR_TABLE_SGI: |
| CHECK_EXTENSION(SGI_texture_color_table); |
| return ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled; |
| |
| /* GL_EXT_convolution */ |
| case GL_CONVOLUTION_1D: |
| CHECK_EXTENSION(EXT_convolution); |
| return ctx->Pixel.Convolution1DEnabled; |
| case GL_CONVOLUTION_2D: |
| CHECK_EXTENSION(EXT_convolution); |
| return ctx->Pixel.Convolution2DEnabled; |
| case GL_SEPARABLE_2D: |
| CHECK_EXTENSION(EXT_convolution); |
| return ctx->Pixel.Separable2DEnabled; |
| |
| /* GL_ARB_texture_cube_map */ |
| case GL_TEXTURE_CUBE_MAP_ARB: |
| CHECK_EXTENSION(ARB_texture_cube_map); |
| return is_texture_enabled(ctx, TEXTURE_CUBE_BIT); |
| |
| /* GL_EXT_secondary_color */ |
| case GL_COLOR_SUM_EXT: |
| CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program); |
| return ctx->Fog.ColorSumEnabled; |
| |
| /* GL_ARB_multisample */ |
| case GL_MULTISAMPLE_ARB: |
| CHECK_EXTENSION(ARB_multisample); |
| return ctx->Multisample.Enabled; |
| case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB: |
| CHECK_EXTENSION(ARB_multisample); |
| return ctx->Multisample.SampleAlphaToCoverage; |
| case GL_SAMPLE_ALPHA_TO_ONE_ARB: |
| CHECK_EXTENSION(ARB_multisample); |
| return ctx->Multisample.SampleAlphaToOne; |
| case GL_SAMPLE_COVERAGE_ARB: |
| CHECK_EXTENSION(ARB_multisample); |
| return ctx->Multisample.SampleCoverage; |
| case GL_SAMPLE_COVERAGE_INVERT_ARB: |
| CHECK_EXTENSION(ARB_multisample); |
| return ctx->Multisample.SampleCoverageInvert; |
| |
| /* GL_IBM_rasterpos_clip */ |
| case GL_RASTER_POSITION_UNCLIPPED_IBM: |
| CHECK_EXTENSION(IBM_rasterpos_clip); |
| return ctx->Transform.RasterPositionUnclipped; |
| |
| /* GL_NV_point_sprite */ |
| case GL_POINT_SPRITE_NV: |
| CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite) |
| return ctx->Point.PointSprite; |
| |
| #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program |
| case GL_VERTEX_PROGRAM_ARB: |
| CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program); |
| return ctx->VertexProgram.Enabled; |
| case GL_VERTEX_PROGRAM_POINT_SIZE_ARB: |
| CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program); |
| return ctx->VertexProgram.PointSizeEnabled; |
| case GL_VERTEX_PROGRAM_TWO_SIDE_ARB: |
| CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program); |
| return ctx->VertexProgram.TwoSideEnabled; |
| #endif |
| #if FEATURE_NV_vertex_program |
| case GL_VERTEX_ATTRIB_ARRAY0_NV: |
| case GL_VERTEX_ATTRIB_ARRAY1_NV: |
| case GL_VERTEX_ATTRIB_ARRAY2_NV: |
| case GL_VERTEX_ATTRIB_ARRAY3_NV: |
| case GL_VERTEX_ATTRIB_ARRAY4_NV: |
| case GL_VERTEX_ATTRIB_ARRAY5_NV: |
| case GL_VERTEX_ATTRIB_ARRAY6_NV: |
| case GL_VERTEX_ATTRIB_ARRAY7_NV: |
| case GL_VERTEX_ATTRIB_ARRAY8_NV: |
| case GL_VERTEX_ATTRIB_ARRAY9_NV: |
| case GL_VERTEX_ATTRIB_ARRAY10_NV: |
| case GL_VERTEX_ATTRIB_ARRAY11_NV: |
| case GL_VERTEX_ATTRIB_ARRAY12_NV: |
| case GL_VERTEX_ATTRIB_ARRAY13_NV: |
| case GL_VERTEX_ATTRIB_ARRAY14_NV: |
| case GL_VERTEX_ATTRIB_ARRAY15_NV: |
| CHECK_EXTENSION(NV_vertex_program); |
| { |
| GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV; |
| return (ctx->Array.ArrayObj->VertexAttrib[n].Enabled != 0); |
| } |
| case GL_MAP1_VERTEX_ATTRIB0_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB1_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB2_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB3_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB4_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB5_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB6_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB7_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB8_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB9_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB10_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB11_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB12_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB13_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB14_4_NV: |
| case GL_MAP1_VERTEX_ATTRIB15_4_NV: |
| CHECK_EXTENSION(NV_vertex_program); |
| { |
| const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV); |
| return ctx->Eval.Map1Attrib[map]; |
| } |
| case GL_MAP2_VERTEX_ATTRIB0_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB1_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB2_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB3_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB4_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB5_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB6_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB7_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB8_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB9_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB10_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB11_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB12_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB13_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB14_4_NV: |
| case GL_MAP2_VERTEX_ATTRIB15_4_NV: |
| CHECK_EXTENSION(NV_vertex_program); |
| { |
| const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV); |
| return ctx->Eval.Map2Attrib[map]; |
| } |
| #endif /* FEATURE_NV_vertex_program */ |
| |
| #if FEATURE_NV_fragment_program |
| case GL_FRAGMENT_PROGRAM_NV: |
| CHECK_EXTENSION(NV_fragment_program); |
| return ctx->FragmentProgram.Enabled; |
| #endif /* FEATURE_NV_fragment_program */ |
| |
| /* GL_NV_texture_rectangle */ |
| case GL_TEXTURE_RECTANGLE_NV: |
| 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: |
| CHECK_EXTENSION(EXT_stencil_two_side); |
| return ctx->Stencil.TestTwoSide; |
| |
| #if FEATURE_ARB_fragment_program |
| case GL_FRAGMENT_PROGRAM_ARB: |
| return ctx->FragmentProgram.Enabled; |
| #endif /* FEATURE_ARB_fragment_program */ |
| |
| /* GL_EXT_depth_bounds_test */ |
| case GL_DEPTH_BOUNDS_TEST_EXT: |
| CHECK_EXTENSION(EXT_depth_bounds_test); |
| return ctx->Depth.BoundsTest; |
| |
| /* GL_MESA_program_debug */ |
| case GL_FRAGMENT_PROGRAM_CALLBACK_MESA: |
| CHECK_EXTENSION(MESA_program_debug); |
| return ctx->FragmentProgram.CallbackEnabled; |
| case GL_VERTEX_PROGRAM_CALLBACK_MESA: |
| CHECK_EXTENSION(MESA_program_debug); |
| return ctx->VertexProgram.CallbackEnabled; |
| #if FEATURE_ATI_fragment_shader |
| case GL_FRAGMENT_SHADER_ATI: |
| CHECK_EXTENSION(ATI_fragment_shader); |
| return ctx->ATIFragmentShader.Enabled; |
| #endif /* FEATURE_ATI_fragment_shader */ |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(0x%x)", (int) cap); |
| return GL_FALSE; |
| } |
| } |
