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vkd3d-shader: Add helper to parse output signature. 

Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
This commit is contained in:
Hans-Kristian Arntzen 2021-09-03 11:48:08 +02:00
parent 1d51818d8f
commit a4b082a828
4 changed files with 38 additions and 0 deletions
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2
include/vkd3d_shader.h
View File

@ -736,6 +736,8 @@ int vkd3d_shader_scan_dxbc(const struct vkd3d_shader_code *dxbc,
int vkd3d_shader_parse_input_signature(const struct vkd3d_shader_code *dxbc,
struct vkd3d_shader_signature *signature);
int vkd3d_shader_parse_output_signature(const struct vkd3d_shader_code *dxbc,
struct vkd3d_shader_signature *signature);
struct vkd3d_shader_signature_element *vkd3d_shader_find_signature_element(
const struct vkd3d_shader_signature *signature, const char *semantic_name,
unsigned int semantic_index, unsigned int stream_index);

26
libs/vkd3d-shader/dxbc.c
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@ -2249,6 +2249,21 @@ static int isgn_handler(const char *data, DWORD data_size, DWORD tag, void *ctx)
return shader_parse_signature(tag, data, data_size, is);
}
static int osgn_handler(const char *data, DWORD data_size, DWORD tag, void *ctx)
{
struct vkd3d_shader_signature *is = ctx;
if (tag != TAG_OSGN && tag != TAG_OSG1)
return VKD3D_OK;
if (is->elements)
{
FIXME("Multiple input signatures.\n");
vkd3d_shader_free_shader_signature(is);
}
return shader_parse_signature(tag, data, data_size, is);
}
int shader_parse_input_signature(const void *dxbc, size_t dxbc_length,
struct vkd3d_shader_signature *signature)
{
@ -2260,6 +2275,17 @@ int shader_parse_input_signature(const void *dxbc, size_t dxbc_length,
return ret;
}
int shader_parse_output_signature(const void *dxbc, size_t dxbc_length,
struct vkd3d_shader_signature *signature)
{
int ret;
memset(signature, 0, sizeof(*signature));
if ((ret = parse_dxbc(dxbc, dxbc_length, osgn_handler, signature)) < 0)
ERR("Failed to parse output signature.\n");
return ret;
}
static int dxil_handler(const char *data, DWORD data_size, DWORD tag, void *context)
{
switch (tag)

8
libs/vkd3d-shader/vkd3d_shader_main.c
View File

@ -672,6 +672,14 @@ int vkd3d_shader_parse_input_signature(const struct vkd3d_shader_code *dxbc,
return shader_parse_input_signature(dxbc->code, dxbc->size, signature);
}
int vkd3d_shader_parse_output_signature(const struct vkd3d_shader_code *dxbc,
struct vkd3d_shader_signature *signature)
{
TRACE("dxbc {%p, %zu}, signature %p.\n", dxbc->code, dxbc->size, signature);
return shader_parse_output_signature(dxbc->code, dxbc->size, signature);
}
struct vkd3d_shader_signature_element *vkd3d_shader_find_signature_element(
const struct vkd3d_shader_signature *signature, const char *semantic_name,
unsigned int semantic_index, unsigned int stream_index)

2
libs/vkd3d-shader/vkd3d_shader_private.h
View File

@ -781,6 +781,8 @@ void free_shader_desc(struct vkd3d_shader_desc *desc);
int shader_parse_input_signature(const void *dxbc, size_t dxbc_length,
struct vkd3d_shader_signature *signature);
int shader_parse_output_signature(const void *dxbc, size_t dxbc_length,
struct vkd3d_shader_signature *signature);
struct vkd3d_dxbc_compiler;