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Diffstat (limited to 'src/mesa/main/enable.c')
-rw-r--r--src/mesa/main/enable.c174
1 files changed, 102 insertions, 72 deletions
diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c
index e0483a72e8..2b54fac694 100644
--- a/src/mesa/main/enable.c
+++ b/src/mesa/main/enable.c
@@ -201,6 +201,26 @@ _mesa_DisableClientState( GLenum cap )
}
+
+/**
+ * Return pointer to current texture unit for setting/getting coordinate
+ * state.
+ * Note that we'll set GL_INVALID_OPERATION if the active texture unit is
+ * higher than the number of supported coordinate units. And we'll return NULL.
+ */
+static struct gl_texture_unit *
+get_texcoord_unit(GLcontext *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.
*/
@@ -321,10 +341,6 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
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);
@@ -612,54 +628,62 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
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;
+ case GL_TEXTURE_GEN_Q:
+ {
+ struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+ if (texUnit) {
+ 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;
+ case GL_TEXTURE_GEN_R:
+ {
+ struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+ if (texUnit) {
+ 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;
+ case GL_TEXTURE_GEN_S:
+ {
+ struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+ if (texUnit) {
+ 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;
+ case GL_TEXTURE_GEN_T:
+ {
+ struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+ if (texUnit) {
+ 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!!!
@@ -748,35 +772,30 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
/* 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);
@@ -898,10 +917,13 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
return;
FLUSH_VERTICES(ctx, _NEW_STENCIL);
ctx->Stencil.TestTwoSide = state;
- if (state)
+ if (state) {
+ ctx->Stencil._BackFace = 2;
ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL;
- else
+ } else {
+ ctx->Stencil._BackFace = 1;
ctx->_TriangleCaps &= ~DD_TRI_TWOSTENCIL;
+ }
break;
#if FEATURE_ARB_fragment_program
@@ -929,6 +951,7 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
break;
/* GL_MESA_program_debug */
+#if FEATURE_MESA_program_debug
case GL_FRAGMENT_PROGRAM_CALLBACK_MESA:
CHECK_EXTENSION(MESA_program_debug, cap);
ctx->FragmentProgram.CallbackEnabled = state;
@@ -937,6 +960,7 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
CHECK_EXTENSION(MESA_program_debug, cap);
ctx->VertexProgram.CallbackEnabled = state;
break;
+#endif
#if FEATURE_ATI_fragment_shader
case GL_FRAGMENT_SHADER_ATI:
@@ -1153,28 +1177,36 @@ _mesa_IsEnabled( GLenum cap )
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;
+ const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+ if (texUnit) {
+ return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE;
+ }
}
+ return 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;
+ const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+ if (texUnit) {
+ return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE;
+ }
}
+ return 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;
+ const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+ if (texUnit) {
+ return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE;
+ }
}
+ return 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;
+ const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+ if (texUnit) {
+ return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE;
+ }
}
+ return GL_FALSE;
/*
* CLIENT STATE!!!
@@ -1249,19 +1281,14 @@ _mesa_IsEnabled( GLenum cap )
/* 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 */
@@ -1378,12 +1405,15 @@ _mesa_IsEnabled( GLenum cap )
return ctx->Depth.BoundsTest;
/* GL_MESA_program_debug */
+#if FEATURE_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;
+#endif
+
#if FEATURE_ATI_fragment_shader
case GL_FRAGMENT_SHADER_ATI:
CHECK_EXTENSION(ATI_fragment_shader);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-26 15:49:58 +0000