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i965: Implement logic to set up and upload an image uniform.

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v2: Move the image_params array back to brw_stage_prog_data.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
This commit is contained in:
Francisco Jerez 2015-05-05 21:07:15 +03:00
parent 84431c1f1d
commit 4af27145fe
2 changed files with 32 additions and 0 deletions
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31
src/mesa/drivers/dri/i965/brw_shader.cpp
View file

@ -1418,3 +1418,34 @@ backend_shader::assign_common_binding_table_offsets(uint32_t next_binding_table_
/* prog_data->base.binding_table.size will be set by brw_mark_surface_used. */
}
void
backend_shader::setup_image_uniform_values(const gl_uniform_storage *storage)
{
const unsigned stage = _mesa_program_enum_to_shader_stage(prog->Target);
for (unsigned i = 0; i < MAX2(storage->array_elements, 1); i++) {
const unsigned image_idx = storage->image[stage].index + i;
const brw_image_param *param = &stage_prog_data->image_param[image_idx];
/* Upload the brw_image_param structure. The order is expected to match
* the BRW_IMAGE_PARAM_*_OFFSET defines.
*/
setup_vector_uniform_values(
(const gl_constant_value *)&param->surface_idx, 1);
setup_vector_uniform_values(
(const gl_constant_value *)param->offset, 2);
setup_vector_uniform_values(
(const gl_constant_value *)param->size, 3);
setup_vector_uniform_values(
(const gl_constant_value *)param->stride, 4);
setup_vector_uniform_values(
(const gl_constant_value *)param->tiling, 3);
setup_vector_uniform_values(
(const gl_constant_value *)param->swizzling, 2);
brw_mark_surface_used(
stage_prog_data,
stage_prog_data->binding_table.image_start + image_idx);
}
}

1
src/mesa/drivers/dri/i965/brw_shader.h
View file

@ -272,6 +272,7 @@ public:
virtual void setup_vector_uniform_values(const gl_constant_value *values,
unsigned n) = 0;
void setup_image_uniform_values(const gl_uniform_storage *storage);
};
uint32_t brw_texture_offset(int *offsets, unsigned num_components);