{
GET_CURRENT_CONTEXT(ctx);
- FLUSH_VERTICES(ctx, 0);
+ value = CLAMP(value, 0.0f, 1.0f);
- ctx->Multisample.SampleCoverageValue = CLAMP(value, 0.0f, 1.0f);
+ if (ctx->Multisample.SampleCoverageInvert == invert &&
+ ctx->Multisample.SampleCoverageValue == value)
+ return;
+
+ FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleMask ? 0 : _NEW_MULTISAMPLE);
+ ctx->NewDriverState |= ctx->DriverFlags.NewSampleMask;
+ ctx->Multisample.SampleCoverageValue = value;
ctx->Multisample.SampleCoverageInvert = invert;
- ctx->NewState |= _NEW_MULTISAMPLE;
}
{
ctx->Multisample.Enabled = GL_TRUE;
ctx->Multisample.SampleAlphaToCoverage = GL_FALSE;
+ ctx->Multisample.SampleAlphaToCoverageDitherControl = GL_ALPHA_TO_COVERAGE_DITHER_DEFAULT_NV;
ctx->Multisample.SampleAlphaToOne = GL_FALSE;
ctx->Multisample.SampleCoverage = GL_FALSE;
ctx->Multisample.SampleCoverageValue = 1.0;
ctx->Multisample.SampleCoverageInvert = GL_FALSE;
+ ctx->Multisample.SampleShading = GL_FALSE;
+ ctx->Multisample.MinSampleShadingValue = 0.0f;
/* ARB_texture_multisample / GL3.2 additions */
ctx->Multisample.SampleMask = GL_FALSE;
switch (pname) {
case GL_SAMPLE_POSITION: {
- if ((int) index >= ctx->DrawBuffer->Visual.samples) {
+ if (index >= ctx->DrawBuffer->Visual.samples) {
_mesa_error( ctx, GL_INVALID_VALUE, "glGetMultisamplefv(index)" );
return;
}
ctx->Driver.GetSamplePosition(ctx, ctx->DrawBuffer, index, val);
- /* winsys FBOs are upside down */
- if (_mesa_is_winsys_fbo(ctx->DrawBuffer))
+ /* FBOs can be upside down (winsys always are)*/
+ if (ctx->DrawBuffer->FlipY)
val[1] = 1.0f - val[1];
return;
}
+ case GL_PROGRAMMABLE_SAMPLE_LOCATION_ARB:
+ if (!ctx->Extensions.ARB_sample_locations) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glGetMultisamplefv(pname)" );
+ return;
+ }
+
+ if (index >= MAX_SAMPLE_LOCATION_TABLE_SIZE * 2) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glGetMultisamplefv(index)" );
+ return;
+ }
+
+ if (ctx->DrawBuffer->SampleLocationTable)
+ *val = ctx->DrawBuffer->SampleLocationTable[index];
+ else
+ *val = 0.5f;
+
+ return;
+
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetMultisamplefv(pname)" );
return;
}
}
+static void
+sample_maski(struct gl_context *ctx, GLuint index, GLbitfield mask)
+{
+ if (ctx->Multisample.SampleMaskValue == mask)
+ return;
+
+ FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleMask ? 0 : _NEW_MULTISAMPLE);
+ ctx->NewDriverState |= ctx->DriverFlags.NewSampleMask;
+ ctx->Multisample.SampleMaskValue = mask;
+}
+
+void GLAPIENTRY
+_mesa_SampleMaski_no_error(GLuint index, GLbitfield mask)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ sample_maski(ctx, index, mask);
+}
+
void GLAPIENTRY
_mesa_SampleMaski(GLuint index, GLbitfield mask)
{
return;
}
- FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
- ctx->Multisample.SampleMaskValue = mask;
+ sample_maski(ctx, index, mask);
+}
+
+static void
+min_sample_shading(struct gl_context *ctx, GLclampf value)
+{
+ value = CLAMP(value, 0.0f, 1.0f);
+
+ if (ctx->Multisample.MinSampleShadingValue == value)
+ return;
+
+ FLUSH_VERTICES(ctx,
+ ctx->DriverFlags.NewSampleShading ? 0 : _NEW_MULTISAMPLE);
+ ctx->NewDriverState |= ctx->DriverFlags.NewSampleShading;
+ ctx->Multisample.MinSampleShadingValue = value;
}
/**
* Called via glMinSampleShadingARB
*/
+void GLAPIENTRY
+_mesa_MinSampleShading_no_error(GLclampf value)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ min_sample_shading(ctx, value);
+}
+
void GLAPIENTRY
_mesa_MinSampleShading(GLclampf value)
{
GET_CURRENT_CONTEXT(ctx);
- if (!ctx->Extensions.ARB_sample_shading || !_mesa_is_desktop_gl(ctx)) {
+ if (!_mesa_has_ARB_sample_shading(ctx) &&
+ !_mesa_has_OES_sample_shading(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glMinSampleShading");
return;
}
- FLUSH_VERTICES(ctx, 0);
-
- ctx->Multisample.MinSampleShadingValue = CLAMP(value, 0.0f, 1.0f);
- ctx->NewState |= _NEW_MULTISAMPLE;
+ min_sample_shading(ctx, value);
}
/**
*/
GLenum
_mesa_check_sample_count(struct gl_context *ctx, GLenum target,
- GLenum internalFormat, GLsizei samples)
+ GLenum internalFormat, GLsizei samples,
+ GLsizei storageSamples)
{
- /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
- *
- * "If a negative number is provided where an argument of type sizei or
- * sizeiptr is specified, the error INVALID VALUE is generated."
- */
- if (samples < 0) {
- return GL_INVALID_VALUE;
- }
-
/* Section 4.4 (Framebuffer objects), page 198 of the OpenGL ES 3.0.0
* specification says:
*
* "If internalformat is a signed or unsigned integer format and samples
* is greater than zero, then the error INVALID_OPERATION is generated."
+ *
+ * This restriction is relaxed for OpenGL ES 3.1.
*/
- if (_mesa_is_gles3(ctx) && _mesa_is_enum_format_integer(internalFormat)
+ if ((ctx->API == API_OPENGLES2 && ctx->Version == 30) &&
+ _mesa_is_enum_format_integer(internalFormat)
&& samples > 0) {
return GL_INVALID_OPERATION;
}
+ if (ctx->Extensions.AMD_framebuffer_multisample_advanced &&
+ target == GL_RENDERBUFFER) {
+ if (!_mesa_is_depth_or_stencil_format(internalFormat)) {
+ /* From the AMD_framebuffer_multisample_advanced spec:
+ *
+ * "An INVALID_OPERATION error is generated if <internalformat>
+ * is a color format and <storageSamples> is greater than
+ * the implementation-dependent limit MAX_COLOR_FRAMEBUFFER_-
+ * STORAGE_SAMPLES_AMD."
+ */
+ if (samples > ctx->Const.MaxColorFramebufferSamples)
+ return GL_INVALID_OPERATION;
+
+ /* From the AMD_framebuffer_multisample_advanced spec:
+ *
+ * "An INVALID_OPERATION error is generated if <internalformat>
+ * is a color format and <storageSamples> is greater than
+ * the implementation-dependent limit MAX_COLOR_FRAMEBUFFER_-
+ * STORAGE_SAMPLES_AMD."
+ */
+ if (storageSamples > ctx->Const.MaxColorFramebufferStorageSamples)
+ return GL_INVALID_OPERATION;
+
+ /* From the AMD_framebuffer_multisample_advanced spec:
+ *
+ * "An INVALID_OPERATION error is generated if <storageSamples> is
+ * greater than <samples>."
+ */
+ if (storageSamples > samples)
+ return GL_INVALID_OPERATION;
+
+ /* Color renderbuffer sample counts are now fully validated
+ * according to AMD_framebuffer_multisample_advanced.
+ */
+ return GL_NO_ERROR;
+ } else {
+ /* From the AMD_framebuffer_multisample_advanced spec:
+ *
+ * "An INVALID_OPERATION error is generated if <internalformat> is
+ * a depth or stencil format and <storageSamples> is not equal to
+ * <samples>."
+ */
+ if (storageSamples != samples)
+ return GL_INVALID_OPERATION;
+ }
+ } else {
+ /* If the extension is unsupported, it's not possible to set
+ * storageSamples differently.
+ */
+ assert(samples == storageSamples);
+ }
+
/* If ARB_internalformat_query is supported, then treat its highest
* returned sample count as the absolute maximum for this format; it is
* allowed to exceed MAX_SAMPLES.
* for <internalformat> then the error INVALID_OPERATION is generated."
*/
if (ctx->Extensions.ARB_internalformat_query) {
- GLint buffer[16];
- int count = ctx->Driver.QuerySamplesForFormat(ctx, target,
- internalFormat, buffer);
- int limit = count ? buffer[0] : -1;
+ GLint buffer[16] = {-1};
+ GLint limit;
+
+ ctx->Driver.QueryInternalFormat(ctx, target, internalFormat,
+ GL_SAMPLES, buffer);
+ /* since the query returns samples sorted in descending order,
+ * the first element is the greatest supported sample value.
+ */
+ limit = buffer[0];
return samples > limit ? GL_INVALID_OPERATION : GL_NO_ERROR;
}
return (GLuint) samples > ctx->Const.MaxSamples
? GL_INVALID_VALUE : GL_NO_ERROR;
}
+
+void GLAPIENTRY
+_mesa_AlphaToCoverageDitherControlNV_no_error(GLenum mode)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleAlphaToXEnable ? 0 :
+ _NEW_MULTISAMPLE);
+ ctx->NewDriverState |= ctx->DriverFlags.NewSampleAlphaToXEnable;
+ ctx->Multisample.SampleAlphaToCoverageDitherControl = mode;
+}
+
+void GLAPIENTRY
+_mesa_AlphaToCoverageDitherControlNV(GLenum mode)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleAlphaToXEnable ? 0 :
+ _NEW_MULTISAMPLE);
+ ctx->NewDriverState |= ctx->DriverFlags.NewSampleAlphaToXEnable;
+ switch (mode) {
+ case GL_ALPHA_TO_COVERAGE_DITHER_DEFAULT_NV:
+ case GL_ALPHA_TO_COVERAGE_DITHER_ENABLE_NV:
+ case GL_ALPHA_TO_COVERAGE_DITHER_DISABLE_NV:
+ ctx->Multisample.SampleAlphaToCoverageDitherControl = mode;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glAlphaToCoverageDitherControlNV(invalid parameter)");
+ }
+}
projects / mesa.git / blobdiff