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vkd3d-shader/dxbc: Parse the SFI0 ROV requirement.

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This commit is contained in:
Francisco Casas
2024-12-05 21:19:04 -03:00
committed by Henri Verbeet
parent b484288a82
commit d9c4a257c2
Notes: Henri Verbeet 2024-12-09 16:18:05 +01:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1287
4 changed files with 62 additions and 16 deletions
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35
libs/vkd3d-shader/dxbc.c
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@@ -115,6 +115,14 @@ static uint32_t read_u32(const char **ptr)
return ret;
}
static uint64_t read_u64(const char **ptr)
{
uint64_t ret;
memcpy(&ret, *ptr, sizeof(ret));
*ptr += sizeof(ret);
return ret;
}
static float read_float(const char **ptr)
{
union
@@ -502,6 +510,28 @@ int shader_parse_input_signature(const struct vkd3d_shader_code *dxbc,
return ret;
}
static int shdr_parse_features(const struct vkd3d_shader_dxbc_section_desc *section,
struct vkd3d_shader_message_context *message_context, struct vsir_features *f)
{
const char *data = section->data.code;
const char *ptr = data;
uint64_t flags;
if (!require_space(0, 1, sizeof(uint64_t), section->data.size))
{
WARN("Invalid data size %#zx.\n", section->data.size);
vkd3d_shader_error(message_context, NULL, VKD3D_SHADER_ERROR_DXBC_INVALID_CHUNK_SIZE,
"SFI0 section size %zu is too small to contain flags.\n", section->data.size);
return VKD3D_ERROR_INVALID_ARGUMENT;
}
flags = read_u64(&ptr);
if (flags & DXBC_SFI0_REQUIRES_ROVS)
f->rovs = true;
return VKD3D_OK;
}
static int shdr_handler(const struct vkd3d_shader_dxbc_section_desc *section,
struct vkd3d_shader_message_context *message_context, void *context)
{
@@ -558,6 +588,11 @@ static int shdr_handler(const struct vkd3d_shader_dxbc_section_desc *section,
desc->byte_code_size = section->data.size;
break;
case TAG_SFI0:
if ((ret = shdr_parse_features(section, message_context, &desc->features)) < 0)
return ret;
break;
case TAG_AON9:
TRACE("Skipping AON9 shader code chunk.\n");
break;