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vkd3d-shader/msl: Access resources as non-multisampled if the sample count is 1.

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This commit is contained in:
Giovanni Mascellani
2025-09-01 15:00:54 +02:00
committed by Henri Verbeet
parent 6607b94ad7
commit 26c51f53b7
Notes: Henri Verbeet 2025-09-09 15:10:03 +02:00 
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1702
1 changed files with 17 additions and 1 deletions
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18
libs/vkd3d-shader/msl.c
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@@ -943,8 +943,8 @@ static void msl_print_texel_offset(struct vkd3d_string_buffer *buffer, struct ms
static void msl_ld(struct msl_generator *gen, const struct vkd3d_shader_instruction *ins)
{
unsigned int resource_id, resource_idx, resource_space, sample_count;
const struct msl_resource_type_info *resource_type_info;
unsigned int resource_id, resource_idx, resource_space;
const struct vkd3d_shader_descriptor_info1 *descriptor;
const struct vkd3d_shader_descriptor_binding *binding;
enum vkd3d_shader_resource_type resource_type;
@@ -969,6 +969,7 @@ static void msl_ld(struct msl_generator *gen, const struct vkd3d_shader_instruct
{
resource_type = descriptor->resource_type;
resource_space = descriptor->register_space;
sample_count = descriptor->sample_count;
data_type = descriptor->resource_data_type;
}
else
@@ -977,6 +978,7 @@ static void msl_ld(struct msl_generator *gen, const struct vkd3d_shader_instruct
"Internal compiler error: Undeclared resource descriptor %u.", resource_id);
resource_space = 0;
resource_type = VKD3D_SHADER_RESOURCE_TEXTURE_2D;
sample_count = 1;
data_type = VSIR_DATA_F32;
}
@@ -988,6 +990,16 @@ static void msl_ld(struct msl_generator *gen, const struct vkd3d_shader_instruct
msl_compiler_error(gen, VKD3D_SHADER_ERROR_MSL_UNSUPPORTED,
"Texel fetches from resource type %#x are not supported.", resource_type);
if (sample_count == 1)
{
/* Similar to the SPIR-V and GLSL targets, we map multi-sample
* textures with sample count 1 to their single-sample equivalents. */
if (resource_type == VKD3D_SHADER_RESOURCE_TEXTURE_2DMS)
resource_type = VKD3D_SHADER_RESOURCE_TEXTURE_2D;
else if (resource_type == VKD3D_SHADER_RESOURCE_TEXTURE_2DMSARRAY)
resource_type = VKD3D_SHADER_RESOURCE_TEXTURE_2DARRAY;
}
if (!(resource_type_info = msl_get_resource_type_info(resource_type)))
{
msl_compiler_error(gen, VKD3D_SHADER_ERROR_MSL_INTERNAL,
@@ -1030,6 +1042,10 @@ static void msl_ld(struct msl_generator *gen, const struct vkd3d_shader_instruct
vkd3d_string_buffer_printf(read, ", ");
if (ins->opcode != VSIR_OP_LD2DMS)
msl_print_src_with_type(read, gen, &ins->src[0], VKD3DSP_WRITEMASK_3, VSIR_DATA_U32);
else if (sample_count == 1)
/* If the resource isn't a true multisample resource, this is the
* "lod" parameter instead of the "sample" parameter. */
vkd3d_string_buffer_printf(read, "0");
else
msl_print_src_with_type(read, gen, &ins->src[2], VKD3DSP_WRITEMASK_0, VSIR_DATA_U32);
}