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d3d10core: Add a DXBC parser. 

We may want to push this into either wined3d or our future shader compiler
dll. It's not a whole lot of code though.
This commit is contained in:
Henri Verbeet 2009-03-30 11:24:54 +02:00 committed by Alexandre Julliard
parent 1205c33c90
commit 7c3fa5d76d
2 changed files with 88 additions and 0 deletions
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23
dlls/d3d10core/d3d10core_private.h
View File

@ -34,6 +34,11 @@
#include "wine/wined3d.h"
#include "wine/winedxgi.h"
#define MAKE_TAG(ch0, ch1, ch2, ch3) \
((DWORD)(ch0) | ((DWORD)(ch1) << 8) | \
((DWORD)(ch2) << 16) | ((DWORD)(ch3) << 24 ))
#define TAG_DXBC MAKE_TAG('D', 'X', 'B', 'C')
/* TRACE helper functions */
const char *debug_d3d10_primitive_topology(D3D10_PRIMITIVE_TOPOLOGY topology);
const char *debug_dxgi_format(DXGI_FORMAT format);
@ -41,6 +46,24 @@ const char *debug_dxgi_format(DXGI_FORMAT format);
DXGI_FORMAT dxgi_format_from_wined3dformat(WINED3DFORMAT format);
WINED3DFORMAT wined3dformat_from_dxgi_format(DXGI_FORMAT format);
static inline void read_dword(const char **ptr, DWORD *d)
{
memcpy(d, *ptr, sizeof(*d));
*ptr += sizeof(*d);
}
void skip_dword_unknown(const char **ptr, unsigned int count);
static inline void read_tag(const char **ptr, DWORD *t, char t_str[5])
{
read_dword(ptr, t);
memcpy(t_str, t, 4);
t_str[4] = '\0';
}
HRESULT parse_dxbc(const char *data, SIZE_T data_size,
HRESULT (*chunk_handler)(const char *data, DWORD data_size, DWORD tag, void *ctx), void *ctx);
/* IDirect3D10Device */
extern const struct ID3D10DeviceVtbl d3d10_device_vtbl;
extern const struct IUnknownVtbl d3d10_device_inner_unknown_vtbl;

65
dlls/d3d10core/utils.c
View File

@ -344,3 +344,68 @@ WINED3DFORMAT wined3dformat_from_dxgi_format(DXGI_FORMAT format)
return WINED3DFMT_UNKNOWN;
}
}
void skip_dword_unknown(const char **ptr, unsigned int count)
{
unsigned int i;
DWORD d;
FIXME("Skipping %u unknown DWORDs:\n", count);
for (i = 0; i < count; ++i)
{
read_dword(ptr, &d);
FIXME("\t0x%08x\n", d);
}
}
HRESULT parse_dxbc(const char *data, SIZE_T data_size,
HRESULT (*chunk_handler)(const char *data, DWORD data_size, DWORD tag, void *ctx), void *ctx)
{
const char *ptr = data;
HRESULT hr = S_OK;
DWORD chunk_count;
DWORD total_size;
char tag_str[5];
unsigned int i;
DWORD tag;
read_tag(&ptr, &tag, tag_str);
TRACE("tag: %s\n", tag_str);
if (tag != TAG_DXBC)
{
WARN("Wrong tag.\n");
return E_FAIL;
}
/* checksum? */
skip_dword_unknown(&ptr, 4);
skip_dword_unknown(&ptr, 1);
read_dword(&ptr, &total_size);
TRACE("total size: %#x\n", total_size);
read_dword(&ptr, &chunk_count);
TRACE("chunk count: %#x\n", chunk_count);
for (i = 0; i < chunk_count; ++i)
{
DWORD chunk_tag, chunk_size;
const char *chunk_ptr;
DWORD chunk_offset;
read_dword(&ptr, &chunk_offset);
TRACE("chunk %u at offset %#x\n", i, chunk_offset);
chunk_ptr = data + chunk_offset;
read_dword(&chunk_ptr, &chunk_tag);
read_dword(&chunk_ptr, &chunk_size);
hr = chunk_handler(chunk_ptr, chunk_size, chunk_tag, ctx);
if (FAILED(hr)) break;
}
return hr;
}