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Diffstat (limited to 'src/mesa/main/enable.c')
-rw-r--r--src/mesa/main/enable.c699
1 files changed, 699 insertions, 0 deletions
diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c
new file mode 100644
index 0000000000..7f661fb75f
--- /dev/null
+++ b/src/mesa/main/enable.c
@@ -0,0 +1,699 @@
+/* $Id: enable.c,v 1.1 1999/08/19 00:55:41 jtg Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.1
+ *
+ * Copyright (C) 1999 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.
+ */
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include <string.h>
+#include <stdio.h>
+#include "context.h"
+#include "enable.h"
+#include "light.h"
+#include "macros.h"
+#include "matrix.h"
+#include "mmath.h"
+#include "simple_list.h"
+#include "types.h"
+#include "vbfill.h"
+#include "xform.h"
+#include "enums.h"
+#ifdef XFree86Server
+#include "GL/xf86glx.h"
+#endif
+#endif
+
+
+
+/*
+ * Perform glEnable and glDisable calls.
+ */
+void gl_set_enable( GLcontext *ctx, GLenum cap, GLboolean state )
+{
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx, "gl_enable/disable" );
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ fprintf(stderr, "%s %s (%x)\n",
+ state ? "glEnable" : "glDisable",
+ gl_lookup_enum_by_nr(cap),
+ ctx->NewState);
+
+ switch (cap) {
+ case GL_ALPHA_TEST:
+ if (ctx->Color.AlphaEnabled!=state) {
+ ctx->Color.AlphaEnabled = state;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_AUTO_NORMAL:
+ ctx->Eval.AutoNormal = state;
+ break;
+ case GL_BLEND:
+ if (ctx->Color.BlendEnabled!=state) {
+ ctx->Color.BlendEnabled = state;
+ /* The following needed to accomodate 1.0 RGB logic op blending */
+ if (ctx->Color.BlendEquation==GL_LOGIC_OP && state) {
+ ctx->Color.ColorLogicOpEnabled = GL_TRUE;
+ }
+ else {
+ ctx->Color.ColorLogicOpEnabled = GL_FALSE;
+ }
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_CLIP_PLANE0:
+ case GL_CLIP_PLANE1:
+ case GL_CLIP_PLANE2:
+ case GL_CLIP_PLANE3:
+ case GL_CLIP_PLANE4:
+ case GL_CLIP_PLANE5:
+ if (cap >= GL_CLIP_PLANE0 &&
+ cap <= GL_CLIP_PLANE5 &&
+ ctx->Transform.ClipEnabled[cap-GL_CLIP_PLANE0] != state)
+ {
+ GLuint p = cap-GL_CLIP_PLANE0;
+
+ ctx->Transform.ClipEnabled[p] = state;
+ ctx->NewState |= NEW_USER_CLIP;
+
+ if (state) {
+ ctx->Enabled |= ENABLE_USERCLIP;
+ ctx->Transform.AnyClip++;
+
+ if (ctx->ProjectionMatrix.flags & MAT_DIRTY_ALL_OVER) {
+ gl_matrix_analyze( &ctx->ProjectionMatrix );
+ }
+
+ gl_transform_vector( ctx->Transform.ClipUserPlane[p],
+ ctx->Transform.EyeUserPlane[p],
+ ctx->ProjectionMatrix.inv );
+ } else {
+ if (--ctx->Transform.AnyClip == 0)
+ ctx->Enabled &= ~ENABLE_USERCLIP;
+ }
+ }
+ break;
+ case GL_COLOR_MATERIAL:
+ if (ctx->Light.ColorMaterialEnabled!=state) {
+ ctx->Light.ColorMaterialEnabled = state;
+ ctx->NewState |= NEW_LIGHTING;
+ }
+ break;
+ case GL_CULL_FACE:
+ if (ctx->Polygon.CullFlag!=state) {
+ ctx->Polygon.CullFlag = state;
+ ctx->TriangleCaps ^= DD_TRI_CULL;
+ ctx->NewState |= NEW_POLYGON;
+ }
+ break;
+ case GL_DEPTH_TEST:
+ if (state && ctx->Visual->DepthBits==0) {
+ gl_warning(ctx,"glEnable(GL_DEPTH_TEST) but no depth buffer");
+ return;
+ }
+ if (ctx->Depth.Test!=state) {
+ ctx->Depth.Test = state;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_DITHER:
+ if (ctx->NoDither) {
+ /* MESA_NO_DITHER env var */
+ state = GL_FALSE;
+ }
+ if (ctx->Color.DitherFlag!=state) {
+ ctx->Color.DitherFlag = state;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_FOG:
+ if (ctx->Fog.Enabled!=state) {
+ ctx->Fog.Enabled = state;
+ ctx->Enabled ^= ENABLE_FOG;
+ ctx->NewState |= NEW_FOG;
+ }
+ 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)
+ {
+ ctx->Light.Light[cap-GL_LIGHT0].Enabled = state;
+
+ if (state) {
+ insert_at_tail(&ctx->Light.EnabledList,
+ &ctx->Light.Light[cap-GL_LIGHT0]);
+ if (ctx->Light.Enabled)
+ ctx->Enabled |= ENABLE_LIGHT;
+ } else {
+ remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]);
+ if (is_empty_list(&ctx->Light.EnabledList))
+ ctx->Enabled &= ~ENABLE_LIGHT;
+ }
+
+ ctx->NewState |= NEW_LIGHTING;
+ }
+ break;
+ case GL_LIGHTING:
+ if (ctx->Light.Enabled!=state) {
+ ctx->Light.Enabled = state;
+ ctx->Enabled &= ~ENABLE_LIGHT;
+ if (state && !is_empty_list(&ctx->Light.EnabledList))
+ ctx->Enabled |= ENABLE_LIGHT;
+ ctx->NewState |= NEW_LIGHTING;
+ }
+ break;
+ case GL_LINE_SMOOTH:
+ if (ctx->Line.SmoothFlag!=state) {
+ ctx->Line.SmoothFlag = state;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_LINE_STIPPLE:
+ if (ctx->Line.StippleFlag!=state) {
+ ctx->Line.StippleFlag = state;
+ ctx->TriangleCaps ^= DD_LINE_STIPPLE;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_INDEX_LOGIC_OP:
+ if (ctx->Color.IndexLogicOpEnabled!=state) {
+ ctx->Color.IndexLogicOpEnabled = state;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_COLOR_LOGIC_OP:
+ if (ctx->Color.ColorLogicOpEnabled!=state) {
+ ctx->Color.ColorLogicOpEnabled = state;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_MAP1_COLOR_4:
+ ctx->Eval.Map1Color4 = state;
+ break;
+ case GL_MAP1_INDEX:
+ ctx->Eval.Map1Index = state;
+ break;
+ case GL_MAP1_NORMAL:
+ ctx->Eval.Map1Normal = state;
+ break;
+ case GL_MAP1_TEXTURE_COORD_1:
+ ctx->Eval.Map1TextureCoord1 = state;
+ break;
+ case GL_MAP1_TEXTURE_COORD_2:
+ ctx->Eval.Map1TextureCoord2 = state;
+ break;
+ case GL_MAP1_TEXTURE_COORD_3:
+ ctx->Eval.Map1TextureCoord3 = state;
+ break;
+ case GL_MAP1_TEXTURE_COORD_4:
+ ctx->Eval.Map1TextureCoord4 = state;
+ break;
+ case GL_MAP1_VERTEX_3:
+ ctx->Eval.Map1Vertex3 = state;
+ break;
+ case GL_MAP1_VERTEX_4:
+ ctx->Eval.Map1Vertex4 = state;
+ break;
+ case GL_MAP2_COLOR_4:
+ ctx->Eval.Map2Color4 = state;
+ break;
+ case GL_MAP2_INDEX:
+ ctx->Eval.Map2Index = state;
+ break;
+ case GL_MAP2_NORMAL:
+ ctx->Eval.Map2Normal = state;
+ break;
+ case GL_MAP2_TEXTURE_COORD_1:
+ ctx->Eval.Map2TextureCoord1 = state;
+ break;
+ case GL_MAP2_TEXTURE_COORD_2:
+ ctx->Eval.Map2TextureCoord2 = state;
+ break;
+ case GL_MAP2_TEXTURE_COORD_3:
+ ctx->Eval.Map2TextureCoord3 = state;
+ break;
+ case GL_MAP2_TEXTURE_COORD_4:
+ ctx->Eval.Map2TextureCoord4 = state;
+ break;
+ case GL_MAP2_VERTEX_3:
+ ctx->Eval.Map2Vertex3 = state;
+ break;
+ case GL_MAP2_VERTEX_4:
+ ctx->Eval.Map2Vertex4 = state;
+ break;
+ case GL_NORMALIZE:
+ if (ctx->Transform.Normalize != state) {
+ ctx->Transform.Normalize = state;
+ ctx->NewState |= NEW_NORMAL_TRANSFORM|NEW_LIGHTING;
+ ctx->Enabled ^= ENABLE_NORMALIZE;
+ }
+ break;
+ case GL_POINT_SMOOTH:
+ if (ctx->Point.SmoothFlag!=state) {
+ ctx->Point.SmoothFlag = state;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_POLYGON_SMOOTH:
+ if (ctx->Polygon.SmoothFlag!=state) {
+ ctx->Polygon.SmoothFlag = state;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_POLYGON_STIPPLE:
+ if (ctx->Polygon.StippleFlag!=state) {
+ ctx->Polygon.StippleFlag = state;
+ ctx->TriangleCaps ^= DD_TRI_STIPPLE;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_POLYGON_OFFSET_POINT:
+ if (ctx->Polygon.OffsetPoint!=state) {
+ ctx->Polygon.OffsetPoint = state;
+ ctx->NewState |= NEW_POLYGON;
+ }
+ break;
+ case GL_POLYGON_OFFSET_LINE:
+ if (ctx->Polygon.OffsetLine!=state) {
+ ctx->Polygon.OffsetLine = state;
+ ctx->NewState |= NEW_POLYGON;
+ }
+ break;
+ case GL_POLYGON_OFFSET_FILL:
+ /*case GL_POLYGON_OFFSET_EXT:*/
+ if (ctx->Polygon.OffsetFill!=state) {
+ ctx->Polygon.OffsetFill = state;
+ ctx->NewState |= NEW_POLYGON;
+ }
+ break;
+ case GL_RESCALE_NORMAL_EXT:
+ if (ctx->Transform.RescaleNormals != state) {
+ ctx->Transform.RescaleNormals = state;
+ ctx->NewState |= NEW_NORMAL_TRANSFORM|NEW_LIGHTING;
+ ctx->Enabled ^= ENABLE_RESCALE;
+ }
+ break;
+ case GL_SCISSOR_TEST:
+ if (ctx->Scissor.Enabled!=state) {
+ ctx->Scissor.Enabled = state;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ ctx->Texture.SharedPalette = state;
+ if (ctx->Driver.UseGlobalTexturePalette)
+ (*ctx->Driver.UseGlobalTexturePalette)( ctx, state );
+ break;
+ case GL_STENCIL_TEST:
+ if (state && ctx->Visual->StencilBits==0) {
+ gl_warning(ctx, "glEnable(GL_STENCIL_TEST) but no stencil buffer");
+ return;
+ }
+ if (ctx->Stencil.Enabled!=state) {
+ ctx->Stencil.Enabled = state;
+ ctx->NewState |= NEW_RASTER_OPS;
+ }
+ break;
+ case GL_TEXTURE_1D:
+ if (ctx->Visual->RGBAflag) {
+ const GLuint curr = ctx->Texture.CurrentUnit;
+ const GLuint flag = TEXTURE0_1D << (curr * 4);
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
+ ctx->NewState |= NEW_TEXTURE_ENABLE;
+ if (state) {
+ texUnit->Enabled |= TEXTURE0_1D;
+ ctx->Enabled |= flag;
+ }
+ else {
+ texUnit->Enabled &= ~TEXTURE0_1D;
+ ctx->Enabled &= ~flag;
+ }
+ }
+ break;
+ case GL_TEXTURE_2D:
+ if (ctx->Visual->RGBAflag) {
+ const GLuint curr = ctx->Texture.CurrentUnit;
+ const GLuint flag = TEXTURE0_2D << (curr * 4);
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
+ ctx->NewState |= NEW_TEXTURE_ENABLE;
+ if (state) {
+ texUnit->Enabled |= TEXTURE0_2D;
+ ctx->Enabled |= flag;
+ }
+ else {
+ texUnit->Enabled &= ~TEXTURE0_2D;
+ ctx->Enabled &= ~flag;
+ }
+ }
+ break;
+ case GL_TEXTURE_3D:
+ if (ctx->Visual->RGBAflag) {
+ const GLuint curr = ctx->Texture.CurrentUnit;
+ const GLuint flag = TEXTURE0_3D << (curr * 4);
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
+ ctx->NewState |= NEW_TEXTURE_ENABLE;
+ if (state) {
+ texUnit->Enabled |= TEXTURE0_3D;
+ ctx->Enabled |= flag;
+ }
+ else {
+ texUnit->Enabled &= ~TEXTURE0_3D;
+ ctx->Enabled &= ~flag;
+ }
+ }
+ break;
+ case GL_TEXTURE_GEN_Q:
+ {
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ if (state)
+ texUnit->TexGenEnabled |= Q_BIT;
+ else
+ texUnit->TexGenEnabled &= ~Q_BIT;
+ ctx->NewState |= NEW_TEXTURING;
+ }
+ break;
+ case GL_TEXTURE_GEN_R:
+ {
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ if (state)
+ texUnit->TexGenEnabled |= R_BIT;
+ else
+ texUnit->TexGenEnabled &= ~R_BIT;
+ ctx->NewState |= NEW_TEXTURING;
+ }
+ break;
+ case GL_TEXTURE_GEN_S:
+ {
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ if (state)
+ texUnit->TexGenEnabled |= S_BIT;
+ else
+ texUnit->TexGenEnabled &= ~S_BIT;
+ ctx->NewState |= NEW_TEXTURING;
+ }
+ break;
+ case GL_TEXTURE_GEN_T:
+ {
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ if (state)
+ texUnit->TexGenEnabled |= T_BIT;
+ else
+ texUnit->TexGenEnabled &= ~T_BIT;
+ ctx->NewState |= NEW_TEXTURING;
+ }
+ break;
+
+ /*
+ * CLIENT STATE!!!
+ */
+ case GL_VERTEX_ARRAY:
+ ctx->Array.Vertex.Enabled = state;
+ break;
+ case GL_NORMAL_ARRAY:
+ ctx->Array.Normal.Enabled = state;
+ break;
+ case GL_COLOR_ARRAY:
+ ctx->Array.Color.Enabled = state;
+ break;
+ case GL_INDEX_ARRAY:
+ ctx->Array.Index.Enabled = state;
+ break;
+ case GL_TEXTURE_COORD_ARRAY:
+ ctx->Array.TexCoord[ctx->TexCoordUnit].Enabled = state;
+ break;
+ case GL_EDGE_FLAG_ARRAY:
+ ctx->Array.EdgeFlag.Enabled = state;
+ break;
+
+ default:
+ if (state) {
+ gl_error( ctx, GL_INVALID_ENUM, "glEnable" );
+ }
+ else {
+ gl_error( ctx, GL_INVALID_ENUM, "glDisable" );
+ }
+ return;
+ }
+
+ if (ctx->Driver.Enable) {
+ (*ctx->Driver.Enable)( ctx, cap, state );
+ }
+}
+
+
+
+
+void gl_Enable( GLcontext* ctx, GLenum cap )
+{
+ gl_set_enable( ctx, cap, GL_TRUE );
+}
+
+
+
+void gl_Disable( GLcontext* ctx, GLenum cap )
+{
+ gl_set_enable( ctx, cap, GL_FALSE );
+}
+
+
+
+GLboolean gl_IsEnabled( GLcontext* ctx, GLenum cap )
+{
+ 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.ClipEnabled[cap-GL_CLIP_PLANE0];
+ 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:
+ {
+ const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ return (texUnit->Enabled & TEXTURE0_1D) ? GL_TRUE : GL_FALSE;
+ }
+ case GL_TEXTURE_2D:
+ {
+ const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ return (texUnit->Enabled & TEXTURE0_2D) ? GL_TRUE : GL_FALSE;
+ }
+ case GL_TEXTURE_3D:
+ {
+ const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ return (texUnit->Enabled & TEXTURE0_2D) ? GL_TRUE : GL_FALSE;
+ }
+ case GL_TEXTURE_GEN_Q:
+ {
+ const struct gl_texture_unit *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 = &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 = &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 = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE;
+ }
+
+ /*
+ * CLIENT STATE!!!
+ */
+ case GL_VERTEX_ARRAY:
+ return ctx->Array.Vertex.Enabled;
+ case GL_NORMAL_ARRAY:
+ return ctx->Array.Normal.Enabled;
+ case GL_COLOR_ARRAY:
+ return ctx->Array.Color.Enabled;
+ case GL_INDEX_ARRAY:
+ return ctx->Array.Index.Enabled;
+ case GL_TEXTURE_COORD_ARRAY:
+ return ctx->Array.TexCoord[ctx->TexCoordUnit].Enabled;
+ case GL_EDGE_FLAG_ARRAY:
+ return ctx->Array.EdgeFlag.Enabled;
+ default:
+ gl_error( ctx, GL_INVALID_ENUM, "glIsEnabled" );
+ return GL_FALSE;
+ }
+}
+
+
+
+
+static void gl_client_state( GLcontext *ctx, GLenum cap, GLboolean state )
+{
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx,
+ (state
+ ? "glEnableClientState"
+ : "glDisableClientState") );
+
+ switch (cap) {
+ case GL_VERTEX_ARRAY:
+ ctx->Array.Vertex.Enabled = state;
+ break;
+ case GL_NORMAL_ARRAY:
+ ctx->Array.Normal.Enabled = state;
+ break;
+ case GL_COLOR_ARRAY:
+ ctx->Array.Color.Enabled = state;
+ break;
+ case GL_INDEX_ARRAY:
+ ctx->Array.Index.Enabled = state;
+ break;
+ case GL_TEXTURE_COORD_ARRAY:
+ ctx->Array.TexCoord[ctx->TexCoordUnit].Enabled = state;
+ break;
+ case GL_EDGE_FLAG_ARRAY:
+ ctx->Array.EdgeFlag.Enabled = state;
+ break;
+ default:
+ gl_error( ctx, GL_INVALID_ENUM, "glEnable/DisableClientState" );
+ }
+
+ ctx->NewState |= NEW_CLIENT_STATE;
+}
+
+
+
+void gl_EnableClientState( GLcontext *ctx, GLenum cap )
+{
+ gl_client_state( ctx, cap, GL_TRUE );
+}
+
+
+
+void gl_DisableClientState( GLcontext *ctx, GLenum cap )
+{
+ gl_client_state( ctx, cap, GL_FALSE );
+}
+