-/* $Id: enable.c,v 1.69 2002/09/06 02:56:08 brianp Exp $ */
+/**
+ * \file enable.c
+ * Enable/disable/query GL capabilities.
+ */
/*
* Mesa 3-D graphics library
- * Version: 4.1
+ * Version: 6.5.1
*
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2006 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"),
*/
-#ifdef PC_HEADER
-#include "all.h"
-#else
#include "glheader.h"
#include "context.h"
#include "enable.h"
#include "light.h"
#include "macros.h"
-#include "mmath.h"
#include "simple_list.h"
#include "mtypes.h"
#include "enums.h"
#include "math/m_matrix.h"
#include "math/m_xform.h"
-#endif
+
#define CHECK_EXTENSION(EXTNAME, CAP) \
}
-
+/**
+ * Helper to enable/disable client-side state.
+ */
static void
-client_state( GLcontext *ctx, GLenum cap, GLboolean state )
+client_state(GLcontext *ctx, GLenum cap, GLboolean state)
{
GLuint flag;
- GLuint *var;
+ GLboolean *var;
switch (cap) {
case GL_VERTEX_ARRAY:
- var = &ctx->Array.Vertex.Enabled;
+ var = &ctx->Array.ArrayObj->Vertex.Enabled;
flag = _NEW_ARRAY_VERTEX;
break;
case GL_NORMAL_ARRAY:
- var = &ctx->Array.Normal.Enabled;
+ var = &ctx->Array.ArrayObj->Normal.Enabled;
flag = _NEW_ARRAY_NORMAL;
break;
case GL_COLOR_ARRAY:
- var = &ctx->Array.Color.Enabled;
+ var = &ctx->Array.ArrayObj->Color.Enabled;
flag = _NEW_ARRAY_COLOR0;
break;
case GL_INDEX_ARRAY:
- var = &ctx->Array.Index.Enabled;
+ var = &ctx->Array.ArrayObj->Index.Enabled;
flag = _NEW_ARRAY_INDEX;
break;
case GL_TEXTURE_COORD_ARRAY:
- var = &ctx->Array.TexCoord[ctx->Array.ActiveTexture].Enabled;
+ 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.EdgeFlag.Enabled;
+ var = &ctx->Array.ArrayObj->EdgeFlag.Enabled;
flag = _NEW_ARRAY_EDGEFLAG;
break;
case GL_FOG_COORDINATE_ARRAY_EXT:
- var = &ctx->Array.FogCoord.Enabled;
+ var = &ctx->Array.ArrayObj->FogCoord.Enabled;
flag = _NEW_ARRAY_FOGCOORD;
break;
case GL_SECONDARY_COLOR_ARRAY_EXT:
- var = &ctx->Array.SecondaryColor.Enabled;
+ var = &ctx->Array.ArrayObj->SecondaryColor.Enabled;
flag = _NEW_ARRAY_COLOR1;
break;
- /* GL_NV_vertex_program */
+#if FEATURE_NV_vertex_program
case GL_VERTEX_ATTRIB_ARRAY0_NV:
case GL_VERTEX_ATTRIB_ARRAY1_NV:
case GL_VERTEX_ATTRIB_ARRAY2_NV:
CHECK_EXTENSION(NV_vertex_program, cap);
{
GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;
- var = &ctx->Array.VertexAttrib[n].Enabled;
+ 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);
*var = state;
if (state)
- ctx->Array._Enabled |= flag;
+ ctx->Array.ArrayObj->_Enabled |= flag;
else
- ctx->Array._Enabled &= ~flag;
+ ctx->Array.ArrayObj->_Enabled &= ~flag;
if (ctx->Driver.Enable) {
- (*ctx->Driver.Enable)( ctx, cap, state );
+ ctx->Driver.Enable( ctx, cap, state );
}
}
-
-void
+/**
+ * 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);
}
-
-void
+/**
+ * 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);
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; \
+ }
-/*
- * Perform glEnable and glDisable calls.
+
+/**
+ * Helper function to enable or disable a texture target.
*/
-void _mesa_set_enable( GLcontext *ctx, GLenum cap, GLboolean state )
+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",
return;
FLUSH_VERTICES(ctx, _NEW_COLOR);
ctx->Color.BlendEnabled = state;
- /* The following needed to accomodate 1.0 RGB logic op blending */
- ctx->Color.ColorLogicOpEnabled =
- (ctx->Color.BlendEquation == GL_LOGIC_OP && state);
break;
+#if FEATURE_userclip
case GL_CLIP_PLANE0:
case GL_CLIP_PLANE1:
case GL_CLIP_PLANE2:
if (state) {
ctx->Transform.ClipPlanesEnabled |= (1 << p);
- if (ctx->ProjectionMatrixStack.Top->flags & MAT_DIRTY)
+ if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top))
_math_matrix_analyse( ctx->ProjectionMatrixStack.Top );
/* This derived state also calculated in clip.c and
}
}
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) {
- FLUSH_CURRENT(ctx, 0);
_mesa_update_color_material( ctx,
ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
}
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->Visual.depthBits==0) {
+ if (state && ctx->DrawBuffer->Visual.depthBits == 0) {
_mesa_warning(ctx,"glEnable(GL_DEPTH_TEST) but no depth buffer");
return;
}
- if (ctx->Depth.Test==state)
+ if (ctx->Depth.Test == state)
return;
FLUSH_VERTICES(ctx, _NEW_DEPTH);
ctx->Depth.Test = state;
if (ctx->NoDither) {
state = GL_FALSE; /* MESA_NO_DITHER env var */
}
- if (ctx->Color.DitherFlag==state)
+ if (ctx->Color.DitherFlag == state)
return;
FLUSH_VERTICES(ctx, _NEW_COLOR);
ctx->Color.DitherFlag = state;
break;
case GL_FOG:
- if (ctx->Fog.Enabled==state)
+ if (ctx->Fog.Enabled == state)
return;
FLUSH_VERTICES(ctx, _NEW_FOG);
ctx->Fog.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;
-
- if ((ctx->Light.Enabled &&
- ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR)
- || ctx->Fog.ColorSumEnabled)
- ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;
- else
- ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR;
-
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)
ctx->Transform.Normalize = state;
break;
case GL_POINT_SMOOTH:
- if (ctx->Point.SmoothFlag==state)
+ 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)
+ 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)
+ 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)
+ 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)
+ 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)
+ if (ctx->Polygon.OffsetFill == state)
return;
FLUSH_VERTICES(ctx, _NEW_POLYGON);
ctx->Polygon.OffsetFill = state;
ctx->Transform.RescaleNormals = state;
break;
case GL_SCISSOR_TEST:
- if (ctx->Scissor.Enabled==state)
+ if (ctx->Scissor.Enabled == state)
return;
FLUSH_VERTICES(ctx, _NEW_SCISSOR);
ctx->Scissor.Enabled = state;
ctx->Texture.SharedPalette = state;
break;
case GL_STENCIL_TEST:
- if (state && ctx->Visual.stencilBits==0) {
+ if (state && ctx->DrawBuffer->Visual.stencilBits == 0) {
_mesa_warning(ctx,
"glEnable(GL_STENCIL_TEST) but no stencil buffer");
return;
}
- if (ctx->Stencil.Enabled==state)
+ if (ctx->Stencil.Enabled == state)
return;
FLUSH_VERTICES(ctx, _NEW_STENCIL);
ctx->Stencil.Enabled = state;
break;
- case GL_TEXTURE_1D: {
- const GLuint curr = ctx->Texture.CurrentUnit;
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
- GLuint newenabled = texUnit->Enabled & ~TEXTURE_1D_BIT;
- if (state)
- newenabled |= TEXTURE_1D_BIT;
- if (!ctx->Visual.rgbMode || texUnit->Enabled == newenabled)
+ case GL_TEXTURE_1D:
+ if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) {
return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->Enabled = newenabled;
+ }
break;
- }
- case GL_TEXTURE_2D: {
- const GLuint curr = ctx->Texture.CurrentUnit;
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
- GLuint newenabled = texUnit->Enabled & ~TEXTURE_2D_BIT;
- if (state)
- newenabled |= TEXTURE_2D_BIT;
- if (!ctx->Visual.rgbMode || texUnit->Enabled == newenabled)
+ case GL_TEXTURE_2D:
+ if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) {
return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->Enabled = newenabled;
+ }
break;
- }
- case GL_TEXTURE_3D: {
- const GLuint curr = ctx->Texture.CurrentUnit;
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
- GLuint newenabled = texUnit->Enabled & ~TEXTURE_3D_BIT;
- if (state)
- newenabled |= TEXTURE_3D_BIT;
- if (!ctx->Visual.rgbMode || texUnit->Enabled == newenabled)
+ case GL_TEXTURE_3D:
+ if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) {
return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->Enabled = newenabled;
+ }
break;
- }
case GL_TEXTURE_GEN_Q: {
GLuint unit = ctx->Texture.CurrentUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
texUnit->TexGenEnabled = newenabled;
break;
}
- break;
case GL_TEXTURE_GEN_S: {
GLuint unit = ctx->Texture.CurrentUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
texUnit->TexGenEnabled = newenabled;
break;
}
- break;
case GL_TEXTURE_GEN_T: {
GLuint unit = ctx->Texture.CurrentUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
texUnit->TexGenEnabled = newenabled;
break;
}
- break;
/*
* CLIENT STATE!!!
client_state( ctx, cap, state );
return;
- /* GL_HP_occlusion_test */
- case GL_OCCLUSION_TEST_HP:
- CHECK_EXTENSION(HP_occlusion_test, cap);
- if (ctx->Depth.OcclusionTest == state)
- return;
- FLUSH_VERTICES(ctx, _NEW_DEPTH);
- ctx->Depth.OcclusionTest = state;
- if (state)
- ctx->OcclusionResult = ctx->OcclusionResultSaved;
- else
- ctx->OcclusionResultSaved = ctx->OcclusionResult;
- break;
-
- /* GL_SGIS_pixel_texture */
- case GL_PIXEL_TEXTURE_SGIS:
- CHECK_EXTENSION(SGIS_pixel_texture, cap);
- if (ctx->Pixel.PixelTextureEnabled == state)
- return;
- FLUSH_VERTICES(ctx, _NEW_PIXEL);
- ctx->Pixel.PixelTextureEnabled = state;
- break;
-
- /* GL_SGIX_pixel_texture */
- case GL_PIXEL_TEX_GEN_SGIX:
- CHECK_EXTENSION(SGIX_pixel_texture, cap);
- if (ctx->Pixel.PixelTextureEnabled == state)
- return;
- FLUSH_VERTICES(ctx, _NEW_PIXEL);
- ctx->Pixel.PixelTextureEnabled = state;
- break;
-
/* GL_SGI_color_table */
case GL_COLOR_TABLE_SGI:
CHECK_EXTENSION(SGI_color_table, cap);
- if (ctx->Pixel.ColorTableEnabled == state)
+ if (ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION] == state)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
- ctx->Pixel.ColorTableEnabled = state;
+ ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION] = state;
break;
case GL_POST_CONVOLUTION_COLOR_TABLE_SGI:
CHECK_EXTENSION(SGI_color_table, cap);
- if (ctx->Pixel.PostConvolutionColorTableEnabled == state)
+ if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION] == state)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
- ctx->Pixel.PostConvolutionColorTableEnabled = state;
+ ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION] = state;
break;
case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI:
CHECK_EXTENSION(SGI_color_table, cap);
- if (ctx->Pixel.PostColorMatrixColorTableEnabled == state)
+ if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX] == state)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
- ctx->Pixel.PostColorMatrixColorTableEnabled = state;
+ 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 */
/* GL_ARB_texture_cube_map */
case GL_TEXTURE_CUBE_MAP_ARB:
- {
- const GLuint curr = ctx->Texture.CurrentUnit;
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
- GLuint newenabled = texUnit->Enabled & ~TEXTURE_CUBE_BIT;
- CHECK_EXTENSION(ARB_texture_cube_map, cap);
- if (state)
- newenabled |= TEXTURE_CUBE_BIT;
- if (!ctx->Visual.rgbMode || texUnit->Enabled == newenabled)
- return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->Enabled = newenabled;
+ 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_EXTENSION(EXT_secondary_color, cap);
+ CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program, cap);
if (ctx->Fog.ColorSumEnabled == state)
return;
FLUSH_VERTICES(ctx, _NEW_FOG);
ctx->Fog.ColorSumEnabled = state;
-
- if ((ctx->Light.Enabled &&
- ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR)
- || ctx->Fog.ColorSumEnabled)
- ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;
- else
- ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR;
-
break;
/* GL_ARB_multisample */
/* GL_NV_point_sprite */
case GL_POINT_SPRITE_NV:
- CHECK_EXTENSION(NV_point_sprite, cap);
+ 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;
- /* GL_NV_vertex_program */
- case GL_VERTEX_PROGRAM_NV:
- CHECK_EXTENSION(NV_vertex_program, cap);
+#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_TRANSFORM | _NEW_PROGRAM); /* XXX OK? */
+ FLUSH_VERTICES(ctx, _NEW_PROGRAM);
ctx->VertexProgram.Enabled = state;
break;
- case GL_VERTEX_PROGRAM_POINT_SIZE_NV:
- CHECK_EXTENSION(NV_vertex_program, cap);
+ 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_POINT | _NEW_PROGRAM);
+ FLUSH_VERTICES(ctx, _NEW_PROGRAM);
ctx->VertexProgram.PointSizeEnabled = state;
break;
- case GL_VERTEX_PROGRAM_TWO_SIDE_NV:
- CHECK_EXTENSION(NV_vertex_program, cap);
+ 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); /* XXX OK? */
+ 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:
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);
- {
- const GLuint curr = ctx->Texture.CurrentUnit;
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
- GLuint newenabled = texUnit->Enabled & ~TEXTURE_RECT_BIT;
- CHECK_EXTENSION(NV_texture_rectangle, cap);
- if (state)
- newenabled |= TEXTURE_RECT_BIT;
- if (!ctx->Visual.rgbMode || texUnit->Enabled == newenabled)
- return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->Enabled = newenabled;
+ if (!enable_texture(ctx, state, TEXTURE_RECT_BIT)) {
+ return;
}
break;
ctx->Stencil.TestTwoSide = state;
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);
}
if (ctx->Driver.Enable) {
- (*ctx->Driver.Enable)( ctx, cap, state );
+ ctx->Driver.Enable( ctx, cap, state );
}
}
-void
+/**
+ * Enable GL capability. Called by glEnable()
+ * \param cap state to enable.
+ */
+void GLAPIENTRY
_mesa_Enable( GLenum cap )
{
GET_CURRENT_CONTEXT(ctx);
}
-void
+/**
+ * Disable GL capability. Called by glDisable()
+ * \param cap state to disable.
+ */
+void GLAPIENTRY
_mesa_Disable( GLenum cap )
{
GET_CURRENT_CONTEXT(ctx);
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; \
+ }
-GLboolean
+
+/**
+ * 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);
case GL_STENCIL_TEST:
return ctx->Stencil.Enabled;
case GL_TEXTURE_1D:
- {
- const struct gl_texture_unit *texUnit;
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- return (texUnit->Enabled & TEXTURE_1D_BIT) ? GL_TRUE : GL_FALSE;
- }
+ return is_texture_enabled(ctx, TEXTURE_1D_BIT);
case GL_TEXTURE_2D:
- {
- const struct gl_texture_unit *texUnit;
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- return (texUnit->Enabled & TEXTURE_2D_BIT) ? GL_TRUE : GL_FALSE;
- }
+ return is_texture_enabled(ctx, TEXTURE_2D_BIT);
case GL_TEXTURE_3D:
- {
- const struct gl_texture_unit *texUnit;
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- return (texUnit->Enabled & TEXTURE_3D_BIT) ? GL_TRUE : GL_FALSE;
- }
+ return is_texture_enabled(ctx, TEXTURE_3D_BIT);
case GL_TEXTURE_GEN_Q:
{
const struct gl_texture_unit *texUnit;
* CLIENT STATE!!!
*/
case GL_VERTEX_ARRAY:
- return (ctx->Array.Vertex.Enabled != 0);
+ return (ctx->Array.ArrayObj->Vertex.Enabled != 0);
case GL_NORMAL_ARRAY:
- return (ctx->Array.Normal.Enabled != 0);
+ return (ctx->Array.ArrayObj->Normal.Enabled != 0);
case GL_COLOR_ARRAY:
- return (ctx->Array.Color.Enabled != 0);
+ return (ctx->Array.ArrayObj->Color.Enabled != 0);
case GL_INDEX_ARRAY:
- return (ctx->Array.Index.Enabled != 0);
+ return (ctx->Array.ArrayObj->Index.Enabled != 0);
case GL_TEXTURE_COORD_ARRAY:
- return (ctx->Array.TexCoord[ctx->Array.ActiveTexture].Enabled != 0);
+ return (ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled != 0);
case GL_EDGE_FLAG_ARRAY:
- return (ctx->Array.EdgeFlag.Enabled != 0);
+ return (ctx->Array.ArrayObj->EdgeFlag.Enabled != 0);
case GL_FOG_COORDINATE_ARRAY_EXT:
CHECK_EXTENSION(EXT_fog_coord);
- return (ctx->Array.FogCoord.Enabled != 0);
+ return (ctx->Array.ArrayObj->FogCoord.Enabled != 0);
case GL_SECONDARY_COLOR_ARRAY_EXT:
CHECK_EXTENSION(EXT_secondary_color);
- return (ctx->Array.SecondaryColor.Enabled != 0);
+ return (ctx->Array.ArrayObj->SecondaryColor.Enabled != 0);
/* GL_EXT_histogram */
case GL_HISTOGRAM:
CHECK_EXTENSION(EXT_histogram);
return ctx->Pixel.MinMaxEnabled;
- /* GL_HP_occlusion_test */
- case GL_OCCLUSION_TEST_HP:
- CHECK_EXTENSION(HP_occlusion_test);
- return ctx->Depth.OcclusionTest;
-
- /* GL_SGIS_pixel_texture */
- case GL_PIXEL_TEXTURE_SGIS:
- CHECK_EXTENSION(SGIS_pixel_texture);
- return ctx->Pixel.PixelTextureEnabled;
-
- /* GL_SGIX_pixel_texture */
- case GL_PIXEL_TEX_GEN_SGIX:
- CHECK_EXTENSION(SGIX_pixel_texture);
- return ctx->Pixel.PixelTextureEnabled;
-
/* GL_SGI_color_table */
case GL_COLOR_TABLE_SGI:
CHECK_EXTENSION(SGI_color_table);
- return ctx->Pixel.ColorTableEnabled;
+ return ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION];
case GL_POST_CONVOLUTION_COLOR_TABLE_SGI:
CHECK_EXTENSION(SGI_color_table);
- return ctx->Pixel.PostConvolutionColorTableEnabled;
+ return ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION];
case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI:
CHECK_EXTENSION(SGI_color_table);
- return ctx->Pixel.PostColorMatrixColorTableEnabled;
+ 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:
/* GL_ARB_texture_cube_map */
case GL_TEXTURE_CUBE_MAP_ARB:
CHECK_EXTENSION(ARB_texture_cube_map);
- {
- const struct gl_texture_unit *texUnit;
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- return (texUnit->Enabled & TEXTURE_CUBE_BIT) ? GL_TRUE : GL_FALSE;
- }
+ 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:
/* GL_NV_point_sprite */
case GL_POINT_SPRITE_NV:
+ CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite)
return ctx->Point.PointSprite;
- /* GL_NV_vertex_program */
- case GL_VERTEX_PROGRAM_NV:
- CHECK_EXTENSION(NV_vertex_program);
+#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_NV:
- CHECK_EXTENSION(NV_vertex_program);
+ 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_NV:
- CHECK_EXTENSION(NV_vertex_program);
+ 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:
CHECK_EXTENSION(NV_vertex_program);
{
GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;
- return (ctx->Array.VertexAttrib[n].Enabled != 0);
+ return (ctx->Array.ArrayObj->VertexAttrib[n].Enabled != 0);
}
case GL_MAP1_VERTEX_ATTRIB0_4_NV:
case GL_MAP1_VERTEX_ATTRIB1_4_NV:
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);
- {
- const struct gl_texture_unit *texUnit;
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- return (texUnit->Enabled & TEXTURE_RECT_BIT) ? GL_TRUE : GL_FALSE;
- }
+ 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;