IMAGE_FUNCTION_SUPPORTS_FLOAT_DATA_TYPE = (1 << 3),
IMAGE_FUNCTION_READ_ONLY = (1 << 4),
IMAGE_FUNCTION_WRITE_ONLY = (1 << 5),
- IMAGE_FUNCTION_AVAIL_ATOMIC = (1 << 6)
+ IMAGE_FUNCTION_AVAIL_ATOMIC = (1 << 6),
+ IMAGE_FUNCTION_MS_ONLY = (1 << 7),
};
/**
ir_function_signature *_image_size_prototype(const glsl_type *image_type,
unsigned num_arguments,
unsigned flags);
+ ir_function_signature *_image_samples_prototype(const glsl_type *image_type,
+ unsigned num_arguments,
+ unsigned flags);
ir_function_signature *_image(image_prototype_ctr prototype,
const glsl_type *image_type,
const char *intrinsic_name,
ir_function *f = new(mem_ctx) ir_function(name);
for (unsigned i = 0; i < ARRAY_SIZE(types); ++i) {
- if (types[i]->sampler_type != GLSL_TYPE_FLOAT ||
- (flags & IMAGE_FUNCTION_SUPPORTS_FLOAT_DATA_TYPE))
+ if ((types[i]->sampler_type != GLSL_TYPE_FLOAT ||
+ (flags & IMAGE_FUNCTION_SUPPORTS_FLOAT_DATA_TYPE)) &&
+ (types[i]->sampler_dimensionality == GLSL_SAMPLER_DIM_MS ||
+ !(flags & IMAGE_FUNCTION_MS_ONLY)))
f->add_signature(_image(prototype, types[i], intrinsic_name,
num_arguments, flags));
}
"__intrinsic_image_size",
&builtin_builder::_image_size_prototype, 1,
flags | IMAGE_FUNCTION_SUPPORTS_FLOAT_DATA_TYPE);
+
+ add_image_function(glsl ? "imageSamples" : "__intrinsic_image_samples",
+ "__intrinsic_image_samples",
+ &builtin_builder::_image_samples_prototype, 1,
+ flags | IMAGE_FUNCTION_SUPPORTS_FLOAT_DATA_TYPE |
+ IMAGE_FUNCTION_MS_ONLY);
}
ir_variable *
}
ir_function_signature *
+builtin_builder::_image_samples_prototype(const glsl_type *image_type,
+ unsigned num_arguments,
+ unsigned flags)
+{
+ ir_variable *image = in_var(image_type, "image");
+ ir_function_signature *sig =
+ new_sig(glsl_type::int_type, shader_samples, 1, image);
+
+ /* Set the maximal set of qualifiers allowed for this image
+ * built-in. Function calls with arguments having fewer
+ * qualifiers than present in the prototype are allowed by the
+ * spec, but not with more, i.e. this will make the compiler
+ * accept everything that needs to be accepted, and reject cases
+ * like loads from write-only or stores to read-only images.
+ */
+ image->data.image_read_only = true;
+ image->data.image_write_only = true;
+ image->data.image_coherent = true;
+ image->data.image_volatile = true;
+ image->data.image_restrict = true;
+
+ return sig;
+}
+
+ir_function_signature *
builtin_builder::_image(image_prototype_ctr prototype,
const glsl_type *image_type,
const char *intrinsic_name,