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vkd3d-shader/glsl: Implement VKD3DSIH_SAMPLE.

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This commit is contained in:
Henri Verbeet
2024-09-29 21:04:57 +02:00
parent eb10f0897e
commit cf6a3ad676
Notes: Henri Verbeet 2024-10-03 19:35:31 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1143
10 changed files with 110 additions and 26 deletions
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84
libs/vkd3d-shader/glsl.c
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@@ -727,6 +727,87 @@ static void shader_glsl_ld(struct vkd3d_glsl_generator *gen, const struct vkd3d_
glsl_dst_cleanup(&dst, &gen->string_buffers);
}
static void shader_glsl_sample(struct vkd3d_glsl_generator *gen, const struct vkd3d_shader_instruction *ins)
{
const struct glsl_resource_type_info *resource_type_info;
unsigned int resource_id, resource_idx, resource_space;
unsigned int sampler_id, sampler_idx, sampler_space;
const struct vkd3d_shader_descriptor_info1 *d;
enum vkd3d_shader_component_type sampled_type;
enum vkd3d_shader_resource_type resource_type;
struct vkd3d_string_buffer *sample;
enum vkd3d_data_type data_type;
struct glsl_src coord;
struct glsl_dst dst;
uint32_t coord_mask;
if (vkd3d_shader_instruction_has_texel_offset(ins))
vkd3d_glsl_compiler_error(gen, VKD3D_SHADER_ERROR_GLSL_INTERNAL,
"Internal compiler error: Unhandled texel sample offset.");
if (ins->src[1].reg.idx[0].rel_addr || ins->src[1].reg.idx[1].rel_addr
|| ins->src[2].reg.idx[0].rel_addr || ins->src[2].reg.idx[1].rel_addr)
vkd3d_glsl_compiler_error(gen, VKD3D_SHADER_ERROR_GLSL_UNSUPPORTED,
"Descriptor indexing is not supported.");
resource_id = ins->src[1].reg.idx[0].offset;
resource_idx = ins->src[1].reg.idx[1].offset;
if ((d = shader_glsl_get_descriptor_by_id(gen, VKD3D_SHADER_DESCRIPTOR_TYPE_SRV, resource_id)))
{
resource_type = d->resource_type;
resource_space = d->register_space;
sampled_type = vkd3d_component_type_from_resource_data_type(d->resource_data_type);
data_type = vkd3d_data_type_from_component_type(sampled_type);
}
else
{
vkd3d_glsl_compiler_error(gen, VKD3D_SHADER_ERROR_GLSL_INTERNAL,
"Internal compiler error: Undeclared resource descriptor %u.", resource_id);
resource_space = 0;
resource_type = VKD3D_SHADER_RESOURCE_TEXTURE_2D;
data_type = VKD3D_DATA_FLOAT;
}
if ((resource_type_info = shader_glsl_get_resource_type_info(resource_type)))
{
coord_mask = vkd3d_write_mask_from_component_count(resource_type_info->coord_size);
}
else
{
vkd3d_glsl_compiler_error(gen, VKD3D_SHADER_ERROR_GLSL_INTERNAL,
"Internal compiler error: Unhandled resource type %#x.", resource_type);
coord_mask = vkd3d_write_mask_from_component_count(2);
}
sampler_id = ins->src[2].reg.idx[0].offset;
sampler_idx = ins->src[2].reg.idx[1].offset;
if ((d = shader_glsl_get_descriptor_by_id(gen, VKD3D_SHADER_DESCRIPTOR_TYPE_SAMPLER, sampler_id)))
{
sampler_space = d->register_space;
}
else
{
vkd3d_glsl_compiler_error(gen, VKD3D_SHADER_ERROR_GLSL_INTERNAL,
"Internal compiler error: Undeclared sampler descriptor %u.", sampler_id);
sampler_space = 0;
}
glsl_dst_init(&dst, gen, ins, &ins->dst[0]);
glsl_src_init(&coord, gen, &ins->src[0], coord_mask);
sample = vkd3d_string_buffer_get(&gen->string_buffers);
vkd3d_string_buffer_printf(sample, "texture(");
shader_glsl_print_combined_sampler_name(sample, gen, resource_idx, resource_space, sampler_idx, sampler_space);
vkd3d_string_buffer_printf(sample, ", %s)", coord.str->buffer);
shader_glsl_print_swizzle(sample, ins->src[1].swizzle, ins->dst[0].write_mask);
shader_glsl_print_assignment_ext(gen, &dst, data_type, "%s", sample->buffer);
vkd3d_string_buffer_release(&gen->string_buffers, sample);
glsl_src_cleanup(&coord, &gen->string_buffers);
glsl_dst_cleanup(&dst, &gen->string_buffers);
}
static void shader_glsl_unary_op(struct vkd3d_glsl_generator *gen,
const struct vkd3d_shader_instruction *ins, const char *op)
{
@@ -1054,6 +1135,9 @@ static void vkd3d_glsl_handle_instruction(struct vkd3d_glsl_generator *gen,
case VKD3DSIH_RSQ:
shader_glsl_intrinsic(gen, ins, "inversesqrt");
break;
case VKD3DSIH_SAMPLE:
shader_glsl_sample(gen, ins);
break;
case VKD3DSIH_SQRT:
shader_glsl_intrinsic(gen, ins, "sqrt");
break;