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Sweden-Number/dlls/windowscodecs/ddsformat.c

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/*
* Copyright 2020 Ziqing Hui
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*
* Note:
*
* Uncompressed image:
* For uncompressed formats, a block is equivalent to a pixel.
*
* Cube map:
* A cube map is equivalent to a 2D texture array which has 6 textures.
* A cube map array is equivalent to a 2D texture array which has cubeCount*6 textures.
*/
#include <stdarg.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "objbase.h"
#include "wincodecs_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
#define DDS_MAGIC 0x20534444
#ifndef MAKEFOURCC
#define MAKEFOURCC(ch0, ch1, ch2, ch3) \
((DWORD)(BYTE)(ch0) | ((DWORD)(BYTE)(ch1) << 8) | \
((DWORD)(BYTE)(ch2) << 16) | ((DWORD)(BYTE)(ch3) << 24 ))
#endif
#define GET_RGB565_R(color) ((BYTE)(((color) >> 11) & 0x1F))
#define GET_RGB565_G(color) ((BYTE)(((color) >> 5) & 0x3F))
#define GET_RGB565_B(color) ((BYTE)(((color) >> 0) & 0x1F))
#define MAKE_RGB565(r, g, b) ((WORD)(((BYTE)(r) << 11) | ((BYTE)(g) << 5) | (BYTE)(b)))
#define MAKE_ARGB(a, r, g, b) (((DWORD)(a) << 24) | ((DWORD)(r) << 16) | ((DWORD)(g) << 8) | (DWORD)(b))
#define DDPF_ALPHAPIXELS 0x00000001
#define DDPF_ALPHA 0x00000002
#define DDPF_FOURCC 0x00000004
#define DDPF_PALETTEINDEXED8 0x00000020
#define DDPF_RGB 0x00000040
#define DDPF_LUMINANCE 0x00020000
#define DDPF_BUMPDUDV 0x00080000
#define DDSCAPS2_CUBEMAP 0x00000200
#define DDSCAPS2_VOLUME 0x00200000
#define DDS_DIMENSION_TEXTURE1D 2
#define DDS_DIMENSION_TEXTURE2D 3
#define DDS_DIMENSION_TEXTURE3D 4
#define DDS_RESOURCE_MISC_TEXTURECUBE 0x00000004
#define DDS_BLOCK_WIDTH 4
#define DDS_BLOCK_HEIGHT 4
typedef struct {
DWORD size;
DWORD flags;
DWORD fourCC;
DWORD rgbBitCount;
DWORD rBitMask;
DWORD gBitMask;
DWORD bBitMask;
DWORD aBitMask;
} DDS_PIXELFORMAT;
typedef struct {
DWORD size;
DWORD flags;
DWORD height;
DWORD width;
DWORD pitchOrLinearSize;
DWORD depth;
DWORD mipMapCount;
DWORD reserved1[11];
DDS_PIXELFORMAT ddspf;
DWORD caps;
DWORD caps2;
DWORD caps3;
DWORD caps4;
DWORD reserved2;
} DDS_HEADER;
typedef struct {
DWORD dxgiFormat;
DWORD resourceDimension;
DWORD miscFlag;
DWORD arraySize;
DWORD miscFlags2;
} DDS_HEADER_DXT10;
typedef struct dds_info {
UINT width;
UINT height;
UINT depth;
UINT mip_levels;
UINT array_size;
UINT frame_count;
UINT data_offset;
UINT bytes_per_block; /* for uncompressed format, this means bytes per pixel*/
DXGI_FORMAT format;
WICDdsDimension dimension;
WICDdsAlphaMode alpha_mode;
const GUID *pixel_format;
UINT pixel_format_bpp;
} dds_info;
typedef struct dds_frame_info {
UINT width;
UINT height;
DXGI_FORMAT format;
UINT bytes_per_block; /* for uncompressed format, this means bytes per pixel*/
UINT block_width;
UINT block_height;
UINT width_in_blocks;
UINT height_in_blocks;
const GUID *pixel_format;
UINT pixel_format_bpp;
} dds_frame_info;
typedef struct DdsDecoder {
IWICBitmapDecoder IWICBitmapDecoder_iface;
IWICDdsDecoder IWICDdsDecoder_iface;
IWICWineDecoder IWICWineDecoder_iface;
LONG ref;
BOOL initialized;
IStream *stream;
CRITICAL_SECTION lock;
dds_info info;
} DdsDecoder;
typedef struct DdsFrameDecode {
IWICBitmapFrameDecode IWICBitmapFrameDecode_iface;
IWICDdsFrameDecode IWICDdsFrameDecode_iface;
LONG ref;
BYTE *block_data;
BYTE *pixel_data;
CRITICAL_SECTION lock;
dds_frame_info info;
} DdsFrameDecode;
typedef struct DdsEncoder {
IWICBitmapEncoder IWICBitmapEncoder_iface;
LONG ref;
CRITICAL_SECTION lock;
IStream *stream;
UINT frame_count;
BOOL uncommitted_frame;
BOOL committed;
} DdsEncoder;
static struct dds_format {
DDS_PIXELFORMAT pixel_format;
const GUID *wic_format;
UINT wic_format_bpp;
DXGI_FORMAT dxgi_format;
} dds_format_table[] = {
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('D', 'X', 'T', '1'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppPBGRA, 32, DXGI_FORMAT_BC1_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('D', 'X', 'T', '2'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppPBGRA, 32, DXGI_FORMAT_BC2_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('D', 'X', 'T', '3'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppBGRA, 32, DXGI_FORMAT_BC2_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('D', 'X', 'T', '4'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppPBGRA, 32, DXGI_FORMAT_BC3_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('D', 'X', 'T', '5'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppBGRA, 32, DXGI_FORMAT_BC3_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('B', 'C', '4', 'U'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppBGRA, 32, DXGI_FORMAT_BC4_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('B', 'C', '4', 'S'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppBGRA, 32, DXGI_FORMAT_BC4_SNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('B', 'C', '5', 'U'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppBGRA, 32, DXGI_FORMAT_BC5_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('B', 'C', '5', 'S'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppBGRA, 32, DXGI_FORMAT_BC5_SNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('A', 'T', 'I', '1'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppBGRA, 32, DXGI_FORMAT_BC4_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('A', 'T', 'I', '2'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppBGRA, 32, DXGI_FORMAT_BC5_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('R', 'G', 'B', 'G'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bpp4Channels, 32, DXGI_FORMAT_R8G8_B8G8_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('G', 'R', 'G', 'B'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bpp4Channels, 32, DXGI_FORMAT_G8R8_G8B8_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, MAKEFOURCC('D', 'X', '1', '0'), 0, 0, 0, 0, 0 },
&GUID_WICPixelFormatUndefined, 0, DXGI_FORMAT_UNKNOWN },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, 0x24, 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat64bppRGBA, 64, DXGI_FORMAT_R16G16B16A16_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, 0x6E, 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat64bppRGBA, 64, DXGI_FORMAT_R16G16B16A16_SNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, 0x6F, 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat16bppGrayHalf, 16, DXGI_FORMAT_R16_FLOAT },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, 0x70, 0, 0, 0, 0, 0 },
&GUID_WICPixelFormatUndefined, 0, DXGI_FORMAT_R16G16_FLOAT },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, 0x71, 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat64bppRGBAHalf, 64, DXGI_FORMAT_R16G16B16A16_FLOAT },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, 0x72, 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat32bppGrayFloat, 32, DXGI_FORMAT_R32_FLOAT },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, 0x73, 0, 0, 0, 0, 0 },
&GUID_WICPixelFormatUndefined, 32, DXGI_FORMAT_R32G32_FLOAT },
{ { sizeof(DDS_PIXELFORMAT), DDPF_FOURCC, 0x74, 0, 0, 0, 0, 0 },
&GUID_WICPixelFormat128bppRGBAFloat, 128, DXGI_FORMAT_R32G32B32A32_FLOAT },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB, 0, 32, 0xFF,0xFF00,0xFF0000,0xFF000000 },
&GUID_WICPixelFormat32bppRGBA, 32, DXGI_FORMAT_R8G8B8A8_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB, 0, 32, 0xFF,0xFF00,0xFF0000,0 },
&GUID_WICPixelFormat32bppRGB, 32, DXGI_FORMAT_UNKNOWN },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB, 0, 32, 0xFF0000,0xFF00,0xFF,0xFF000000 },
&GUID_WICPixelFormat32bppBGRA, 32, DXGI_FORMAT_B8G8R8A8_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB, 0, 32, 0xFF0000,0xFF00,0xFF,0 },
&GUID_WICPixelFormat32bppBGR, 32, DXGI_FORMAT_B8G8R8X8_UNORM },
/* The red and blue masks are swapped for DXGI_FORMAT_R10G10B10A2_UNORM.
* For "correct" one, the RGB masks should be 0x3FF,0xFFC00,0x3FF00000.
* see: https://walbourn.github.io/dds-update-and-1010102-problems */
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB, 0, 32, 0x3FF00000,0xFFC00,0x3FF,0xC0000000 },
&GUID_WICPixelFormat32bppR10G10B10A2, 32, DXGI_FORMAT_R10G10B10A2_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB, 0, 32, 0x3FF,0xFFC00,0x3FF00000,0xC0000000 },
&GUID_WICPixelFormat32bppRGBA1010102, 32, DXGI_FORMAT_UNKNOWN },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB , 0, 32, 0xFFFF,0xFFFF0000,0,0 },
&GUID_WICPixelFormatUndefined, 0, DXGI_FORMAT_R16G16_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB , 0, 32, 0xFFFFFFFF,0,0,0 },
&GUID_WICPixelFormat32bppGrayFloat, 32, DXGI_FORMAT_R32_FLOAT },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB , 0, 24, 0xFF0000,0x00FF00,0x0000FF,0 },
&GUID_WICPixelFormat24bppBGR, 24, DXGI_FORMAT_UNKNOWN },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB , 0, 24, 0x0000FF,0x00FF00,0xFF0000,0 },
&GUID_WICPixelFormat24bppRGB, 24, DXGI_FORMAT_UNKNOWN },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB, 0, 16, 0xF800,0x7E0,0x1F,0 },
&GUID_WICPixelFormat16bppBGR565, 16, DXGI_FORMAT_B5G6R5_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB, 0, 16, 0x7C00,0x3E0,0x1F,0 },
&GUID_WICPixelFormat16bppBGR555, 16, DXGI_FORMAT_UNKNOWN },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB, 0, 16, 0x7C00,0x3E0,0x1F,0x8000 },
&GUID_WICPixelFormat16bppBGRA5551, 16, DXGI_FORMAT_B5G5R5A1_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_RGB, 0, 16, 0xF00,0xF0,0xF,0xF000 },
&GUID_WICPixelFormatUndefined, 0, DXGI_FORMAT_B4G4R4A4_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_ALPHA, 0, 8, 0,0,0,0xFF },
&GUID_WICPixelFormat8bppAlpha, 8, DXGI_FORMAT_A8_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_LUMINANCE, 0, 16, 0xFFFF,0,0,0 },
&GUID_WICPixelFormat16bppGray, 16, DXGI_FORMAT_R16_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_LUMINANCE, 0, 16, 0xFF,0,0,0xFF00 },
&GUID_WICPixelFormatUndefined, 0, DXGI_FORMAT_R8G8_UNORM },
{ { sizeof(DDS_PIXELFORMAT), DDPF_LUMINANCE, 0, 8, 0xFF,0,0,0 },
&GUID_WICPixelFormat8bppGray, 8, DXGI_FORMAT_R8_UNORM },
{ { 0 }, &GUID_WICPixelFormat8bppAlpha, 8, DXGI_FORMAT_A8_UNORM },
{ { 0 }, &GUID_WICPixelFormat8bppGray, 8, DXGI_FORMAT_R8_UNORM },
{ { 0 }, &GUID_WICPixelFormat16bppGray, 16, DXGI_FORMAT_R16_UNORM },
{ { 0 }, &GUID_WICPixelFormat16bppGrayHalf, 16, DXGI_FORMAT_R16_FLOAT },
{ { 0 }, &GUID_WICPixelFormat16bppBGR565, 16, DXGI_FORMAT_B5G6R5_UNORM },
{ { 0 }, &GUID_WICPixelFormat16bppBGRA5551, 16, DXGI_FORMAT_B5G5R5A1_UNORM },
{ { 0 }, &GUID_WICPixelFormat32bppGrayFloat, 32, DXGI_FORMAT_R32_FLOAT },
{ { 0 }, &GUID_WICPixelFormat32bppRGBA, 32, DXGI_FORMAT_R8G8B8A8_UNORM },
{ { 0 }, &GUID_WICPixelFormat32bppBGRA, 32, DXGI_FORMAT_B8G8R8A8_UNORM },
{ { 0 }, &GUID_WICPixelFormat32bppBGR, 32, DXGI_FORMAT_B8G8R8X8_UNORM },
{ { 0 }, &GUID_WICPixelFormat32bppR10G10B10A2, 32, DXGI_FORMAT_R10G10B10A2_UNORM },
{ { 0 }, &GUID_WICPixelFormat32bppRGBE, 32, DXGI_FORMAT_R9G9B9E5_SHAREDEXP },
{ { 0 }, &GUID_WICPixelFormat32bppRGBA1010102XR, 32, DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM },
{ { 0 }, &GUID_WICPixelFormat64bppRGBA, 64, DXGI_FORMAT_R16G16B16A16_UNORM },
{ { 0 }, &GUID_WICPixelFormat64bppRGBAHalf, 64, DXGI_FORMAT_R16G16B16A16_FLOAT },
{ { 0 }, &GUID_WICPixelFormat96bppRGBFloat, 96, DXGI_FORMAT_R32G32B32_FLOAT },
{ { 0 }, &GUID_WICPixelFormat128bppRGBAFloat, 128, DXGI_FORMAT_R32G32B32A32_FLOAT },
{ { 0 }, &GUID_WICPixelFormatUndefined, 0, DXGI_FORMAT_UNKNOWN }
};
static DXGI_FORMAT compressed_formats[] = {
DXGI_FORMAT_BC1_TYPELESS, DXGI_FORMAT_BC1_UNORM, DXGI_FORMAT_BC1_UNORM_SRGB,
DXGI_FORMAT_BC2_TYPELESS, DXGI_FORMAT_BC2_UNORM, DXGI_FORMAT_BC2_UNORM_SRGB,
DXGI_FORMAT_BC3_TYPELESS, DXGI_FORMAT_BC3_UNORM, DXGI_FORMAT_BC3_UNORM_SRGB,
DXGI_FORMAT_BC4_TYPELESS, DXGI_FORMAT_BC4_UNORM, DXGI_FORMAT_BC4_SNORM,
DXGI_FORMAT_BC5_TYPELESS, DXGI_FORMAT_BC5_UNORM, DXGI_FORMAT_BC5_SNORM,
DXGI_FORMAT_BC6H_TYPELESS, DXGI_FORMAT_BC6H_UF16, DXGI_FORMAT_BC6H_SF16,
DXGI_FORMAT_BC7_TYPELESS, DXGI_FORMAT_BC7_UNORM, DXGI_FORMAT_BC7_UNORM_SRGB
};
static HRESULT WINAPI DdsDecoder_Dds_GetFrame(IWICDdsDecoder *, UINT, UINT, UINT, IWICBitmapFrameDecode **);
static DWORD rgb565_to_argb(WORD color, BYTE alpha)
{
return MAKE_ARGB(alpha, (GET_RGB565_R(color) * 0xFF + 0x0F) / 0x1F,
(GET_RGB565_G(color) * 0xFF + 0x1F) / 0x3F,
(GET_RGB565_B(color) * 0xFF + 0x0F) / 0x1F);
}
static inline BOOL has_extended_header(DDS_HEADER *header)
{
return (header->ddspf.flags & DDPF_FOURCC) &&
(header->ddspf.fourCC == MAKEFOURCC('D', 'X', '1', '0'));
}
static WICDdsDimension get_dimension(DDS_HEADER *header, DDS_HEADER_DXT10 *header_dxt10)
{
if (header_dxt10) {
if (header_dxt10->miscFlag & DDS_RESOURCE_MISC_TEXTURECUBE) return WICDdsTextureCube;
switch (header_dxt10->resourceDimension)
{
case DDS_DIMENSION_TEXTURE1D: return WICDdsTexture1D;
case DDS_DIMENSION_TEXTURE2D: return WICDdsTexture2D;
case DDS_DIMENSION_TEXTURE3D: return WICDdsTexture3D;
default: return WICDdsTexture2D;
}
} else {
if (header->caps2 & DDSCAPS2_CUBEMAP) {
return WICDdsTextureCube;
} else if (header->caps2 & DDSCAPS2_VOLUME) {
return WICDdsTexture3D;
} else {
return WICDdsTexture2D;
}
}
}
static struct dds_format *get_dds_format(DDS_PIXELFORMAT *pixel_format)
{
UINT i;
for (i = 0; i < ARRAY_SIZE(dds_format_table); i++)
{
if ((pixel_format->flags & dds_format_table[i].pixel_format.flags) &&
(pixel_format->fourCC == dds_format_table[i].pixel_format.fourCC) &&
(pixel_format->rgbBitCount == dds_format_table[i].pixel_format.rgbBitCount) &&
(pixel_format->rBitMask == dds_format_table[i].pixel_format.rBitMask) &&
(pixel_format->gBitMask == dds_format_table[i].pixel_format.gBitMask) &&
(pixel_format->bBitMask == dds_format_table[i].pixel_format.bBitMask) &&
(pixel_format->aBitMask == dds_format_table[i].pixel_format.aBitMask))
return dds_format_table + i;
}
return dds_format_table + ARRAY_SIZE(dds_format_table) - 1;
}
static WICDdsAlphaMode get_alpha_mode_from_fourcc(DWORD fourcc)
{
switch (fourcc)
{
case MAKEFOURCC('D', 'X', 'T', '1'):
case MAKEFOURCC('D', 'X', 'T', '2'):
case MAKEFOURCC('D', 'X', 'T', '4'):
return WICDdsAlphaModePremultiplied;
default:
return WICDdsAlphaModeUnknown;
}
}
static UINT get_bytes_per_block_from_format(DXGI_FORMAT format)
{
/* for uncompressed format, return bytes per pixel*/
switch (format)
{
case DXGI_FORMAT_R8_TYPELESS:
case DXGI_FORMAT_R8_UNORM:
case DXGI_FORMAT_R8_UINT:
case DXGI_FORMAT_R8_SNORM:
case DXGI_FORMAT_R8_SINT:
case DXGI_FORMAT_A8_UNORM:
return 1;
case DXGI_FORMAT_R8G8_TYPELESS:
case DXGI_FORMAT_R8G8_UNORM:
case DXGI_FORMAT_R8G8_UINT:
case DXGI_FORMAT_R8G8_SNORM:
case DXGI_FORMAT_R8G8_SINT:
case DXGI_FORMAT_R16_TYPELESS:
case DXGI_FORMAT_R16_FLOAT:
case DXGI_FORMAT_D16_UNORM:
case DXGI_FORMAT_R16_UNORM:
case DXGI_FORMAT_R16_UINT:
case DXGI_FORMAT_R16_SNORM:
case DXGI_FORMAT_R16_SINT:
case DXGI_FORMAT_B5G6R5_UNORM:
case DXGI_FORMAT_B5G5R5A1_UNORM:
case DXGI_FORMAT_B4G4R4A4_UNORM:
return 2;
case DXGI_FORMAT_R10G10B10A2_TYPELESS:
case DXGI_FORMAT_R10G10B10A2_UNORM:
case DXGI_FORMAT_R10G10B10A2_UINT:
case DXGI_FORMAT_R11G11B10_FLOAT:
case DXGI_FORMAT_R8G8B8A8_TYPELESS:
case DXGI_FORMAT_R8G8B8A8_UNORM:
case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
case DXGI_FORMAT_R8G8B8A8_UINT:
case DXGI_FORMAT_R8G8B8A8_SNORM:
case DXGI_FORMAT_R8G8B8A8_SINT:
case DXGI_FORMAT_R16G16_TYPELESS:
case DXGI_FORMAT_R16G16_FLOAT:
case DXGI_FORMAT_R16G16_UNORM:
case DXGI_FORMAT_R16G16_UINT:
case DXGI_FORMAT_R16G16_SNORM:
case DXGI_FORMAT_R16G16_SINT:
case DXGI_FORMAT_R32_TYPELESS:
case DXGI_FORMAT_D32_FLOAT:
case DXGI_FORMAT_R32_FLOAT:
case DXGI_FORMAT_R32_UINT:
case DXGI_FORMAT_R32_SINT:
case DXGI_FORMAT_R24G8_TYPELESS:
case DXGI_FORMAT_D24_UNORM_S8_UINT:
case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
case DXGI_FORMAT_R9G9B9E5_SHAREDEXP:
case DXGI_FORMAT_R8G8_B8G8_UNORM:
case DXGI_FORMAT_G8R8_G8B8_UNORM:
case DXGI_FORMAT_B8G8R8A8_UNORM:
case DXGI_FORMAT_B8G8R8X8_UNORM:
case DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM:
case DXGI_FORMAT_B8G8R8A8_TYPELESS:
case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
case DXGI_FORMAT_B8G8R8X8_TYPELESS:
case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
return 4;
case DXGI_FORMAT_BC1_UNORM:
case DXGI_FORMAT_BC1_TYPELESS:
case DXGI_FORMAT_BC1_UNORM_SRGB:
case DXGI_FORMAT_BC4_TYPELESS:
case DXGI_FORMAT_BC4_UNORM:
case DXGI_FORMAT_BC4_SNORM:
case DXGI_FORMAT_R16G16B16A16_TYPELESS:
case DXGI_FORMAT_R16G16B16A16_FLOAT:
case DXGI_FORMAT_R16G16B16A16_UNORM:
case DXGI_FORMAT_R16G16B16A16_UINT:
case DXGI_FORMAT_R16G16B16A16_SNORM:
case DXGI_FORMAT_R16G16B16A16_SINT:
case DXGI_FORMAT_R32G32_TYPELESS:
case DXGI_FORMAT_R32G32_FLOAT:
case DXGI_FORMAT_R32G32_UINT:
case DXGI_FORMAT_R32G32_SINT:
case DXGI_FORMAT_R32G8X24_TYPELESS:
case DXGI_FORMAT_D32_FLOAT_S8X24_UINT:
case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
return 8;
case DXGI_FORMAT_R32G32B32_TYPELESS:
case DXGI_FORMAT_R32G32B32_FLOAT:
case DXGI_FORMAT_R32G32B32_UINT:
case DXGI_FORMAT_R32G32B32_SINT:
return 12;
case DXGI_FORMAT_BC2_UNORM:
case DXGI_FORMAT_BC2_TYPELESS:
case DXGI_FORMAT_BC2_UNORM_SRGB:
case DXGI_FORMAT_BC3_UNORM:
case DXGI_FORMAT_BC3_TYPELESS:
case DXGI_FORMAT_BC3_UNORM_SRGB:
case DXGI_FORMAT_BC5_TYPELESS:
case DXGI_FORMAT_BC5_UNORM:
case DXGI_FORMAT_BC5_SNORM:
case DXGI_FORMAT_BC6H_TYPELESS:
case DXGI_FORMAT_BC6H_UF16:
case DXGI_FORMAT_BC6H_SF16:
case DXGI_FORMAT_BC7_TYPELESS:
case DXGI_FORMAT_BC7_UNORM:
case DXGI_FORMAT_BC7_UNORM_SRGB:
case DXGI_FORMAT_R32G32B32A32_TYPELESS:
case DXGI_FORMAT_R32G32B32A32_FLOAT:
case DXGI_FORMAT_R32G32B32A32_UINT:
case DXGI_FORMAT_R32G32B32A32_SINT:
return 16;
default:
WARN("DXGI format 0x%x is not supported in DDS decoder\n", format);
return 0;
}
}
static const GUID *dxgi_format_to_wic_format(DXGI_FORMAT dxgi_format)
{
UINT i;
for (i = 0; i < ARRAY_SIZE(dds_format_table); i++)
{
if (dds_format_table[i].pixel_format.size == 0 &&
dds_format_table[i].dxgi_format == dxgi_format)
return dds_format_table[i].wic_format;
}
return &GUID_WICPixelFormatUndefined;
}
static BOOL is_compressed(DXGI_FORMAT format)
{
UINT i;
for (i = 0; i < ARRAY_SIZE(compressed_formats); i++)
{
if (format == compressed_formats[i]) return TRUE;
}
return FALSE;
}
static void get_dds_info(dds_info* info, DDS_HEADER *header, DDS_HEADER_DXT10 *header_dxt10)
{
int i;
UINT depth;
struct dds_format *format_info;
info->width = header->width;
info->height = header->height;
info->depth = 1;
info->mip_levels = 1;
info->array_size = 1;
if (header->depth) info->depth = header->depth;
if (header->mipMapCount) info->mip_levels = header->mipMapCount;
if (has_extended_header(header)) {
if (header_dxt10->arraySize) info->array_size = header_dxt10->arraySize;
info->format = header_dxt10->dxgiFormat;
info->dimension = get_dimension(NULL, header_dxt10);
info->alpha_mode = header_dxt10->miscFlags2 & 0x00000008;
info->data_offset = sizeof(DWORD) + sizeof(*header) + sizeof(*header_dxt10);
if (is_compressed(info->format)) {
info->pixel_format = (info->alpha_mode == WICDdsAlphaModePremultiplied) ?
&GUID_WICPixelFormat32bppPBGRA : &GUID_WICPixelFormat32bppBGRA;
info->pixel_format_bpp = 32;
} else {
info->pixel_format = dxgi_format_to_wic_format(info->format);
info->pixel_format_bpp = get_bytes_per_block_from_format(info->format) * 8;
}
} else {
format_info = get_dds_format(&header->ddspf);
info->format = format_info->dxgi_format;
info->dimension = get_dimension(header, NULL);
info->alpha_mode = get_alpha_mode_from_fourcc(header->ddspf.fourCC);
info->data_offset = sizeof(DWORD) + sizeof(*header);
info->pixel_format = format_info->wic_format;
info->pixel_format_bpp = format_info->wic_format_bpp;
}
if (header->ddspf.flags & (DDPF_RGB | DDPF_ALPHA | DDPF_LUMINANCE)) {
info->bytes_per_block = header->ddspf.rgbBitCount / 8;
} else {
info->bytes_per_block = get_bytes_per_block_from_format(info->format);
}
/* get frame count */
if (info->depth == 1) {
info->frame_count = info->array_size * info->mip_levels;
} else {
info->frame_count = 0;
depth = info->depth;
for (i = 0; i < info->mip_levels; i++)
{
info->frame_count += depth;
if (depth > 1) depth /= 2;
}
info->frame_count *= info->array_size;
}
if (info->dimension == WICDdsTextureCube) info->frame_count *= 6;
}
static void decode_block(const BYTE *block_data, UINT block_count, DXGI_FORMAT format,
UINT width, UINT height, DWORD *buffer)
{
const BYTE *block, *color_indices, *alpha_indices, *alpha_table;
int i, j, x, y, block_x, block_y, color_index, alpha_index;
int block_size, color_offset, color_indices_offset;
WORD color[4], color_value = 0;
BYTE alpha[8], alpha_value = 0;
if (format == DXGI_FORMAT_BC1_UNORM) {
block_size = 8;
color_offset = 0;
color_indices_offset = 4;
} else {
block_size = 16;
color_offset = 8;
color_indices_offset = 12;
}
block_x = 0;
block_y = 0;
for (i = 0; i < block_count; i++)
{
block = block_data + i * block_size;
color[0] = *((WORD *)(block + color_offset));
color[1] = *((WORD *)(block + color_offset + 2));
color[2] = MAKE_RGB565(((GET_RGB565_R(color[0]) * 2 + GET_RGB565_R(color[1]) + 1) / 3),
((GET_RGB565_G(color[0]) * 2 + GET_RGB565_G(color[1]) + 1) / 3),
((GET_RGB565_B(color[0]) * 2 + GET_RGB565_B(color[1]) + 1) / 3));
color[3] = MAKE_RGB565(((GET_RGB565_R(color[0]) + GET_RGB565_R(color[1]) * 2 + 1) / 3),
((GET_RGB565_G(color[0]) + GET_RGB565_G(color[1]) * 2 + 1) / 3),
((GET_RGB565_B(color[0]) + GET_RGB565_B(color[1]) * 2 + 1) / 3));
switch (format)
{
case DXGI_FORMAT_BC1_UNORM:
if (color[0] <= color[1]) {
color[2] = MAKE_RGB565(((GET_RGB565_R(color[0]) + GET_RGB565_R(color[1]) + 1) / 2),
((GET_RGB565_G(color[0]) + GET_RGB565_G(color[1]) + 1) / 2),
((GET_RGB565_B(color[0]) + GET_RGB565_B(color[1]) + 1) / 2));
color[3] = 0;
}
break;
case DXGI_FORMAT_BC2_UNORM:
alpha_table = block;
break;
case DXGI_FORMAT_BC3_UNORM:
alpha[0] = *block;
alpha[1] = *(block + 1);
if (alpha[0] > alpha[1]) {
for (j = 2; j < 8; j++)
{
alpha[j] = (BYTE)((alpha[0] * (8 - j) + alpha[1] * (j - 1) + 3) / 7);
}
} else {
for (j = 2; j < 6; j++)
{
alpha[j] = (BYTE)((alpha[0] * (6 - j) + alpha[1] * (j - 1) + 2) / 5);
}
alpha[6] = 0;
alpha[7] = 0xFF;
}
alpha_indices = block + 2;
break;
default:
break;
}
color_indices = block + color_indices_offset;
for (j = 0; j < 16; j++)
{
x = block_x + j % 4;
y = block_y + j / 4;
if (x >= width || y >= height) continue;
color_index = (color_indices[j / 4] >> ((j % 4) * 2)) & 0x3;
color_value = color[color_index];
switch (format)
{
case DXGI_FORMAT_BC1_UNORM:
if ((color[0] <= color[1]) && !color_value) {
color_value = 0;
alpha_value = 0;
} else {
alpha_value = 0xFF;
}
break;
case DXGI_FORMAT_BC2_UNORM:
alpha_value = (alpha_table[j / 2] >> (j % 2) * 4) & 0xF;
alpha_value = (BYTE)((alpha_value * 0xFF + 0x7)/ 0xF);
break;
case DXGI_FORMAT_BC3_UNORM:
alpha_index = (*((DWORD *)(alpha_indices + (j / 8) * 3)) >> ((j % 8) * 3)) & 0x7;
alpha_value = alpha[alpha_index];
break;
default:
break;
}
buffer[x + y * width] = rgb565_to_argb(color_value, alpha_value);
}
block_x += DDS_BLOCK_WIDTH;
if (block_x >= width) {
block_x = 0;
block_y += DDS_BLOCK_HEIGHT;
}
}
}
static inline DdsDecoder *impl_from_IWICBitmapDecoder(IWICBitmapDecoder *iface)
{
return CONTAINING_RECORD(iface, DdsDecoder, IWICBitmapDecoder_iface);
}
static inline DdsDecoder *impl_from_IWICDdsDecoder(IWICDdsDecoder *iface)
{
return CONTAINING_RECORD(iface, DdsDecoder, IWICDdsDecoder_iface);
}
static inline DdsDecoder *impl_from_IWICWineDecoder(IWICWineDecoder *iface)
{
return CONTAINING_RECORD(iface, DdsDecoder, IWICWineDecoder_iface);
}
static inline DdsFrameDecode *impl_from_IWICBitmapFrameDecode(IWICBitmapFrameDecode *iface)
{
return CONTAINING_RECORD(iface, DdsFrameDecode, IWICBitmapFrameDecode_iface);
}
static inline DdsFrameDecode *impl_from_IWICDdsFrameDecode(IWICDdsFrameDecode *iface)
{
return CONTAINING_RECORD(iface, DdsFrameDecode, IWICDdsFrameDecode_iface);
}
static inline DdsEncoder *impl_from_IWICBitmapEncoder(IWICBitmapEncoder *iface)
{
return CONTAINING_RECORD(iface, DdsEncoder, IWICBitmapEncoder_iface);
}
static HRESULT WINAPI DdsFrameDecode_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
void **ppv)
{
DdsFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) ||
IsEqualIID(&IID_IWICBitmapSource, iid) ||
IsEqualIID(&IID_IWICBitmapFrameDecode, iid)) {
*ppv = &This->IWICBitmapFrameDecode_iface;
} else if (IsEqualGUID(&IID_IWICDdsFrameDecode, iid)) {
*ppv = &This->IWICDdsFrameDecode_iface;
} else {
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI DdsFrameDecode_AddRef(IWICBitmapFrameDecode *iface)
{
DdsFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI DdsFrameDecode_Release(IWICBitmapFrameDecode *iface)
{
DdsFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0) {
if (This->pixel_data != This->block_data) HeapFree(GetProcessHeap(), 0, This->pixel_data);
HeapFree(GetProcessHeap(), 0, This->block_data);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI DdsFrameDecode_GetSize(IWICBitmapFrameDecode *iface,
UINT *puiWidth, UINT *puiHeight)
{
DdsFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
if (!puiWidth || !puiHeight) return E_INVALIDARG;
*puiWidth = This->info.width;
*puiHeight = This->info.height;
TRACE("(%p) -> (%d,%d)\n", iface, *puiWidth, *puiHeight);
return S_OK;
}
static HRESULT WINAPI DdsFrameDecode_GetPixelFormat(IWICBitmapFrameDecode *iface,
WICPixelFormatGUID *pPixelFormat)
{
DdsFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
if (!pPixelFormat) return E_INVALIDARG;
*pPixelFormat = *This->info.pixel_format;
TRACE("(%p) -> %s\n", iface, debugstr_guid(pPixelFormat));
return S_OK;
}
static HRESULT WINAPI DdsFrameDecode_GetResolution(IWICBitmapFrameDecode *iface,
double *pDpiX, double *pDpiY)
{
FIXME("(%p,%p,%p): stub.\n", iface, pDpiX, pDpiY);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
IWICPalette *pIPalette)
{
FIXME("(%p,%p): stub.\n", iface, pIPalette);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_CopyPixels(IWICBitmapFrameDecode *iface,
const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
{
DdsFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
UINT bpp, frame_stride, frame_size;
INT x, y, width, height;
HRESULT hr;
TRACE("(%p,%s,%u,%u,%p)\n", iface, debug_wic_rect(prc), cbStride, cbBufferSize, pbBuffer);
if (!pbBuffer) return E_INVALIDARG;
bpp = This->info.pixel_format_bpp;
if (!bpp) return WINCODEC_ERR_UNSUPPORTEDPIXELFORMAT;
frame_stride = This->info.width * bpp / 8;
frame_size = frame_stride * This->info.height;
if (!prc) {
if (cbStride < frame_stride) return E_INVALIDARG;
if (cbBufferSize < frame_size) return WINCODEC_ERR_INSUFFICIENTBUFFER;
} else {
x = prc->X;
y = prc->Y;
width = prc->Width;
height = prc->Height;
if (x < 0 || y < 0 || width <= 0 || height <= 0 ||
x + width > This->info.width ||
y + height > This->info.height) {
return E_INVALIDARG;
}
if (cbStride < width * bpp / 8) return E_INVALIDARG;
if (cbBufferSize < cbStride * height) return WINCODEC_ERR_INSUFFICIENTBUFFER;
}
EnterCriticalSection(&This->lock);
if (!This->pixel_data) {
if (is_compressed(This->info.format)) {
This->pixel_data = HeapAlloc(GetProcessHeap(), 0, frame_size);
if (!This->pixel_data) {
hr = E_OUTOFMEMORY;
goto end;
}
decode_block(This->block_data, This->info.width_in_blocks * This->info.height_in_blocks, This->info.format,
This->info.width, This->info.height, (DWORD *)This->pixel_data);
} else {
This->pixel_data = This->block_data;
}
}
hr = copy_pixels(bpp, This->pixel_data, This->info.width, This->info.height, frame_stride,
prc, cbStride, cbBufferSize, pbBuffer);
end:
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI DdsFrameDecode_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
IWICMetadataQueryReader **ppIMetadataQueryReader)
{
FIXME("(%p,%p): stub.\n", iface, ppIMetadataQueryReader);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_GetColorContexts(IWICBitmapFrameDecode *iface,
UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
{
FIXME("(%p,%u,%p,%p): stub.\n", iface, cCount, ppIColorContexts, pcActualCount);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsFrameDecode_GetThumbnail(IWICBitmapFrameDecode *iface,
IWICBitmapSource **ppIThumbnail)
{
FIXME("(%p,%p): stub.\n", iface, ppIThumbnail);
return E_NOTIMPL;
}
static const IWICBitmapFrameDecodeVtbl DdsFrameDecode_Vtbl = {
DdsFrameDecode_QueryInterface,
DdsFrameDecode_AddRef,
DdsFrameDecode_Release,
DdsFrameDecode_GetSize,
DdsFrameDecode_GetPixelFormat,
DdsFrameDecode_GetResolution,
DdsFrameDecode_CopyPalette,
DdsFrameDecode_CopyPixels,
DdsFrameDecode_GetMetadataQueryReader,
DdsFrameDecode_GetColorContexts,
DdsFrameDecode_GetThumbnail
};
static HRESULT WINAPI DdsFrameDecode_Dds_QueryInterface(IWICDdsFrameDecode *iface,
REFIID iid, void **ppv)
{
DdsFrameDecode *This = impl_from_IWICDdsFrameDecode(iface);
return DdsFrameDecode_QueryInterface(&This->IWICBitmapFrameDecode_iface, iid, ppv);
}
static ULONG WINAPI DdsFrameDecode_Dds_AddRef(IWICDdsFrameDecode *iface)
{
DdsFrameDecode *This = impl_from_IWICDdsFrameDecode(iface);
return DdsFrameDecode_AddRef(&This->IWICBitmapFrameDecode_iface);
}
static ULONG WINAPI DdsFrameDecode_Dds_Release(IWICDdsFrameDecode *iface)
{
DdsFrameDecode *This = impl_from_IWICDdsFrameDecode(iface);
return DdsFrameDecode_Release(&This->IWICBitmapFrameDecode_iface);
}
static HRESULT WINAPI DdsFrameDecode_Dds_GetSizeInBlocks(IWICDdsFrameDecode *iface,
UINT *widthInBlocks, UINT *heightInBlocks)
{
DdsFrameDecode *This = impl_from_IWICDdsFrameDecode(iface);
if (!widthInBlocks || !heightInBlocks) return E_INVALIDARG;
*widthInBlocks = This->info.width_in_blocks;
*heightInBlocks = This->info.height_in_blocks;
TRACE("(%p,%p,%p) -> (%d,%d)\n", iface, widthInBlocks, heightInBlocks, *widthInBlocks, *heightInBlocks);
return S_OK;
}
static HRESULT WINAPI DdsFrameDecode_Dds_GetFormatInfo(IWICDdsFrameDecode *iface,
WICDdsFormatInfo *formatInfo)
{
DdsFrameDecode *This = impl_from_IWICDdsFrameDecode(iface);
if (!formatInfo) return E_INVALIDARG;
formatInfo->DxgiFormat = This->info.format;
formatInfo->BytesPerBlock = This->info.bytes_per_block;
formatInfo->BlockWidth = This->info.block_width;
formatInfo->BlockHeight = This->info.block_height;
TRACE("(%p,%p) -> (0x%x,%d,%d,%d)\n", iface, formatInfo,
formatInfo->DxgiFormat, formatInfo->BytesPerBlock, formatInfo->BlockWidth, formatInfo->BlockHeight);
return S_OK;
}
static HRESULT WINAPI DdsFrameDecode_Dds_CopyBlocks(IWICDdsFrameDecode *iface,
const WICRect *boundsInBlocks, UINT stride, UINT bufferSize,
BYTE *buffer)
{
DdsFrameDecode *This = impl_from_IWICDdsFrameDecode(iface);
int x, y, width, height;
UINT bytes_per_block, frame_stride, frame_size;
TRACE("(%p,%p,%u,%u,%p)\n", iface, boundsInBlocks, stride, bufferSize, buffer);
if (!buffer) return E_INVALIDARG;
bytes_per_block = This->info.bytes_per_block;
frame_stride = This->info.width_in_blocks * bytes_per_block;
frame_size = frame_stride * This->info.height_in_blocks;
if (!boundsInBlocks) {
if (stride < frame_stride) return E_INVALIDARG;
if (bufferSize < frame_size) return E_INVALIDARG;
} else {
x = boundsInBlocks->X;
y = boundsInBlocks->Y;
width = boundsInBlocks->Width;
height = boundsInBlocks->Height;
if (x < 0 || y < 0 || width <= 0 || height <= 0 ||
x + width > This->info.width_in_blocks ||
y + height > This->info.height_in_blocks) {
return E_INVALIDARG;
}
if (stride < width * bytes_per_block) return E_INVALIDARG;
if (bufferSize < stride * height) return E_INVALIDARG;
}
return copy_pixels(This->info.bytes_per_block * 8, This->block_data, This->info.width_in_blocks,
This->info.height_in_blocks, frame_stride, boundsInBlocks, stride, bufferSize, buffer);
}
static const IWICDdsFrameDecodeVtbl DdsFrameDecode_Dds_Vtbl = {
DdsFrameDecode_Dds_QueryInterface,
DdsFrameDecode_Dds_AddRef,
DdsFrameDecode_Dds_Release,
DdsFrameDecode_Dds_GetSizeInBlocks,
DdsFrameDecode_Dds_GetFormatInfo,
DdsFrameDecode_Dds_CopyBlocks
};
static HRESULT DdsFrameDecode_CreateInstance(DdsFrameDecode **frame_decode)
{
DdsFrameDecode *result;
result = HeapAlloc(GetProcessHeap(), 0, sizeof(*result));
if (!result) return E_OUTOFMEMORY;
result->IWICBitmapFrameDecode_iface.lpVtbl = &DdsFrameDecode_Vtbl;
result->IWICDdsFrameDecode_iface.lpVtbl = &DdsFrameDecode_Dds_Vtbl;
result->ref = 1;
InitializeCriticalSection(&result->lock);
result->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": DdsFrameDecode.lock");
*frame_decode = result;
return S_OK;
}
static HRESULT WINAPI DdsDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
void **ppv)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) ||
IsEqualIID(&IID_IWICBitmapDecoder, iid)) {
*ppv = &This->IWICBitmapDecoder_iface;
} else if (IsEqualIID(&IID_IWICDdsDecoder, iid)) {
*ppv = &This->IWICDdsDecoder_iface;
} else if (IsEqualIID(&IID_IWICWineDecoder, iid)) {
*ppv = &This->IWICWineDecoder_iface;
} else {
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI DdsDecoder_AddRef(IWICBitmapDecoder *iface)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI DdsDecoder_Release(IWICBitmapDecoder *iface)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
This->lock.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->lock);
if (This->stream) IStream_Release(This->stream);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI DdsDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *stream,
DWORD *capability)
{
FIXME("(%p,%p,%p): stub.\n", iface, stream, capability);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
WICDecodeOptions cacheOptions)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
HRESULT hr;
TRACE("(%p,%p,%x)\n", iface, pIStream, cacheOptions);
EnterCriticalSection(&This->lock);
hr = IWICWineDecoder_Initialize(&This->IWICWineDecoder_iface, pIStream, cacheOptions);
if (FAILED(hr)) goto end;
if (This->info.dimension == WICDdsTextureCube ||
(This->info.format != DXGI_FORMAT_BC1_UNORM &&
This->info.format != DXGI_FORMAT_BC2_UNORM &&
This->info.format != DXGI_FORMAT_BC3_UNORM)) {
IStream_Release(pIStream);
This->stream = NULL;
This->initialized = FALSE;
hr = WINCODEC_ERR_BADHEADER;
}
end:
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI DdsDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
GUID *pguidContainerFormat)
{
TRACE("(%p,%p)\n", iface, pguidContainerFormat);
memcpy(pguidContainerFormat, &GUID_ContainerFormatDds, sizeof(GUID));
return S_OK;
}
static HRESULT WINAPI DdsDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
IWICBitmapDecoderInfo **ppIDecoderInfo)
{
TRACE("(%p,%p)\n", iface, ppIDecoderInfo);
return get_decoder_info(&CLSID_WICDdsDecoder, ppIDecoderInfo);
}
static HRESULT WINAPI DdsDecoder_CopyPalette(IWICBitmapDecoder *iface,
IWICPalette *pIPalette)
{
TRACE("(%p,%p)\n", iface, pIPalette);
return WINCODEC_ERR_PALETTEUNAVAILABLE;
}
static HRESULT WINAPI DdsDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
IWICMetadataQueryReader **ppIMetadataQueryReader)
{
if (!ppIMetadataQueryReader) return E_INVALIDARG;
FIXME("(%p,%p)\n", iface, ppIMetadataQueryReader);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsDecoder_GetPreview(IWICBitmapDecoder *iface,
IWICBitmapSource **ppIBitmapSource)
{
TRACE("(%p,%p)\n", iface, ppIBitmapSource);
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
static HRESULT WINAPI DdsDecoder_GetColorContexts(IWICBitmapDecoder *iface,
UINT cCount, IWICColorContext **ppDdslorContexts, UINT *pcActualCount)
{
TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppDdslorContexts, pcActualCount);
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
static HRESULT WINAPI DdsDecoder_GetThumbnail(IWICBitmapDecoder *iface,
IWICBitmapSource **ppIThumbnail)
{
TRACE("(%p,%p)\n", iface, ppIThumbnail);
return WINCODEC_ERR_CODECNOTHUMBNAIL;
}
static HRESULT WINAPI DdsDecoder_GetFrameCount(IWICBitmapDecoder *iface,
UINT *pCount)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
if (!pCount) return E_INVALIDARG;
if (!This->initialized) return WINCODEC_ERR_WRONGSTATE;
EnterCriticalSection(&This->lock);
*pCount = This->info.frame_count;
LeaveCriticalSection(&This->lock);
TRACE("(%p) -> %d\n", iface, *pCount);
return S_OK;
}
static HRESULT WINAPI DdsDecoder_GetFrame(IWICBitmapDecoder *iface,
UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
{
DdsDecoder *This = impl_from_IWICBitmapDecoder(iface);
UINT frame_per_texture, array_index, mip_level, slice_index, depth;
TRACE("(%p,%u,%p)\n", iface, index, ppIBitmapFrame);
if (!ppIBitmapFrame) return E_INVALIDARG;
EnterCriticalSection(&This->lock);
if (!This->initialized) {
LeaveCriticalSection(&This->lock);
return WINCODEC_ERR_WRONGSTATE;
}
if (This->info.dimension == WICDdsTextureCube) {
frame_per_texture = This->info.mip_levels;
} else {
frame_per_texture = This->info.frame_count / This->info.array_size;
}
array_index = index / frame_per_texture;
slice_index = index % frame_per_texture;
depth = This->info.depth;
mip_level = 0;
while (slice_index >= depth)
{
slice_index -= depth;
mip_level++;
if (depth > 1) depth /= 2;
}
LeaveCriticalSection(&This->lock);
return DdsDecoder_Dds_GetFrame(&This->IWICDdsDecoder_iface, array_index, mip_level, slice_index, ppIBitmapFrame);
}
static const IWICBitmapDecoderVtbl DdsDecoder_Vtbl = {
DdsDecoder_QueryInterface,
DdsDecoder_AddRef,
DdsDecoder_Release,
DdsDecoder_QueryCapability,
DdsDecoder_Initialize,
DdsDecoder_GetContainerFormat,
DdsDecoder_GetDecoderInfo,
DdsDecoder_CopyPalette,
DdsDecoder_GetMetadataQueryReader,
DdsDecoder_GetPreview,
DdsDecoder_GetColorContexts,
DdsDecoder_GetThumbnail,
DdsDecoder_GetFrameCount,
DdsDecoder_GetFrame
};
static HRESULT WINAPI DdsDecoder_Dds_QueryInterface(IWICDdsDecoder *iface,
REFIID iid, void **ppv)
{
DdsDecoder *This = impl_from_IWICDdsDecoder(iface);
return DdsDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
}
static ULONG WINAPI DdsDecoder_Dds_AddRef(IWICDdsDecoder *iface)
{
DdsDecoder *This = impl_from_IWICDdsDecoder(iface);
return DdsDecoder_AddRef(&This->IWICBitmapDecoder_iface);
}
static ULONG WINAPI DdsDecoder_Dds_Release(IWICDdsDecoder *iface)
{
DdsDecoder *This = impl_from_IWICDdsDecoder(iface);
return DdsDecoder_Release(&This->IWICBitmapDecoder_iface);
}
static HRESULT WINAPI DdsDecoder_Dds_GetParameters(IWICDdsDecoder *iface,
WICDdsParameters *parameters)
{
DdsDecoder *This = impl_from_IWICDdsDecoder(iface);
HRESULT hr;
if (!parameters) return E_INVALIDARG;
EnterCriticalSection(&This->lock);
if (!This->initialized) {
hr = WINCODEC_ERR_WRONGSTATE;
goto end;
}
parameters->Width = This->info.width;
parameters->Height = This->info.height;
parameters->Depth = This->info.depth;
parameters->MipLevels = This->info.mip_levels;
parameters->ArraySize = This->info.array_size;
parameters->DxgiFormat = This->info.format;
parameters->Dimension = This->info.dimension;
parameters->AlphaMode = This->info.alpha_mode;
TRACE("(%p) -> (%dx%d depth=%d mipLevels=%d arraySize=%d dxgiFormat=0x%x dimension=0x%x alphaMode=0x%x)\n",
iface, parameters->Width, parameters->Height, parameters->Depth, parameters->MipLevels,
parameters->ArraySize, parameters->DxgiFormat, parameters->Dimension, parameters->AlphaMode);
hr = S_OK;
end:
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI DdsDecoder_Dds_GetFrame(IWICDdsDecoder *iface,
UINT arrayIndex, UINT mipLevel, UINT sliceIndex,
IWICBitmapFrameDecode **bitmapFrame)
{
DdsDecoder *This = impl_from_IWICDdsDecoder(iface);
HRESULT hr;
LARGE_INTEGER seek;
UINT width, height, depth, block_width, block_height, width_in_blocks, height_in_blocks, size;
UINT frame_width = 0, frame_height = 0, frame_width_in_blocks = 0, frame_height_in_blocks = 0, frame_size = 0;
UINT bytes_per_block, bytesread, i;
DdsFrameDecode *frame_decode = NULL;
TRACE("(%p,%u,%u,%u,%p)\n", iface, arrayIndex, mipLevel, sliceIndex, bitmapFrame);
if (!bitmapFrame) return E_INVALIDARG;
EnterCriticalSection(&This->lock);
if (!This->initialized) {
hr = WINCODEC_ERR_WRONGSTATE;
goto end;
}
if ((arrayIndex >= This->info.array_size && This->info.dimension != WICDdsTextureCube) ||
(arrayIndex >= This->info.array_size * 6) ||
(mipLevel >= This->info.mip_levels) ||
(sliceIndex >= This->info.depth)) {
hr = E_INVALIDARG;
goto end;
}
if (is_compressed(This->info.format)) {
block_width = DDS_BLOCK_WIDTH;
block_height = DDS_BLOCK_HEIGHT;
} else {
block_width = 1;
block_height = 1;
}
bytes_per_block = This->info.bytes_per_block;
seek.QuadPart = This->info.data_offset;
width = This->info.width;
height = This->info.height;
depth = This->info.depth;
for (i = 0; i < This->info.mip_levels; i++)
{
width_in_blocks = (width + block_width - 1) / block_width;
height_in_blocks = (height + block_height - 1) / block_height;
size = width_in_blocks * height_in_blocks * bytes_per_block;
if (i < mipLevel) {
seek.QuadPart += size * depth;
} else if (i == mipLevel){
seek.QuadPart += size * sliceIndex;
frame_width = width;
frame_height = height;
frame_width_in_blocks = width_in_blocks;
frame_height_in_blocks = height_in_blocks;
frame_size = frame_width_in_blocks * frame_height_in_blocks * bytes_per_block;
if (arrayIndex == 0) break;
}
seek.QuadPart += arrayIndex * size * depth;
if (width > 1) width /= 2;
if (height > 1) height /= 2;
if (depth > 1) depth /= 2;
}
hr = DdsFrameDecode_CreateInstance(&frame_decode);
if (hr != S_OK) goto end;
frame_decode->info.width = frame_width;
frame_decode->info.height = frame_height;
frame_decode->info.format = This->info.format;
frame_decode->info.bytes_per_block = bytes_per_block;
frame_decode->info.block_width = block_width;
frame_decode->info.block_height = block_height;
frame_decode->info.width_in_blocks = frame_width_in_blocks;
frame_decode->info.height_in_blocks = frame_height_in_blocks;
frame_decode->info.pixel_format = This->info.pixel_format;
frame_decode->info.pixel_format_bpp = This->info.pixel_format_bpp;
frame_decode->block_data = HeapAlloc(GetProcessHeap(), 0, frame_size);
frame_decode->pixel_data = NULL;
hr = IStream_Seek(This->stream, seek, SEEK_SET, NULL);
if (hr != S_OK) goto end;
hr = IStream_Read(This->stream, frame_decode->block_data, frame_size, &bytesread);
if (hr != S_OK || bytesread != frame_size) {
hr = WINCODEC_ERR_STREAMREAD;
goto end;
}
*bitmapFrame = &frame_decode->IWICBitmapFrameDecode_iface;
hr = S_OK;
end:
LeaveCriticalSection(&This->lock);
if (hr != S_OK && frame_decode) DdsFrameDecode_Release(&frame_decode->IWICBitmapFrameDecode_iface);
return hr;
}
static const IWICDdsDecoderVtbl DdsDecoder_Dds_Vtbl = {
DdsDecoder_Dds_QueryInterface,
DdsDecoder_Dds_AddRef,
DdsDecoder_Dds_Release,
DdsDecoder_Dds_GetParameters,
DdsDecoder_Dds_GetFrame
};
static HRESULT WINAPI DdsDecoder_Wine_QueryInterface(IWICWineDecoder *iface, REFIID iid, void **ppv)
{
DdsDecoder *This = impl_from_IWICWineDecoder(iface);
return DdsDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
}
static ULONG WINAPI DdsDecoder_Wine_AddRef(IWICWineDecoder *iface)
{
DdsDecoder *This = impl_from_IWICWineDecoder(iface);
return DdsDecoder_AddRef(&This->IWICBitmapDecoder_iface);
}
static ULONG WINAPI DdsDecoder_Wine_Release(IWICWineDecoder *iface)
{
DdsDecoder *This = impl_from_IWICWineDecoder(iface);
return DdsDecoder_Release(&This->IWICBitmapDecoder_iface);
}
static HRESULT WINAPI DdsDecoder_Wine_Initialize(IWICWineDecoder *iface, IStream *stream, WICDecodeOptions options)
{
DdsDecoder *This = impl_from_IWICWineDecoder(iface);
DDS_HEADER_DXT10 header_dxt10;
LARGE_INTEGER seek;
DDS_HEADER header;
ULONG bytesread;
DWORD magic;
HRESULT hr;
TRACE("(This %p, stream %p, options %#x)\n", iface, stream, options);
EnterCriticalSection(&This->lock);
if (This->initialized) {
hr = WINCODEC_ERR_WRONGSTATE;
goto end;
}
seek.QuadPart = 0;
hr = IStream_Seek(stream, seek, SEEK_SET, NULL);
if (FAILED(hr)) goto end;
hr = IStream_Read(stream, &magic, sizeof(magic), &bytesread);
if (FAILED(hr)) goto end;
if (bytesread != sizeof(magic)) {
hr = WINCODEC_ERR_STREAMREAD;
goto end;
}
if (magic != DDS_MAGIC) {
hr = WINCODEC_ERR_UNKNOWNIMAGEFORMAT;
goto end;
}
hr = IStream_Read(stream, &header, sizeof(header), &bytesread);
if (FAILED(hr)) goto end;
if (bytesread != sizeof(header)) {
hr = WINCODEC_ERR_STREAMREAD;
goto end;
}
if (header.size != sizeof(header)) {
hr = WINCODEC_ERR_BADHEADER;
goto end;
}
if (has_extended_header(&header)) {
hr = IStream_Read(stream, &header_dxt10, sizeof(header_dxt10), &bytesread);
if (FAILED(hr)) goto end;
if (bytesread != sizeof(header_dxt10)) {
hr = WINCODEC_ERR_STREAMREAD;
goto end;
}
}
get_dds_info(&This->info, &header, &header_dxt10);
This->initialized = TRUE;
This->stream = stream;
IStream_AddRef(stream);
end:
LeaveCriticalSection(&This->lock);
return hr;
}
static const IWICWineDecoderVtbl DdsDecoder_Wine_Vtbl = {
DdsDecoder_Wine_QueryInterface,
DdsDecoder_Wine_AddRef,
DdsDecoder_Wine_Release,
DdsDecoder_Wine_Initialize
};
HRESULT DdsDecoder_CreateInstance(REFIID iid, void** ppv)
{
DdsDecoder *This;
HRESULT ret;
TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
*ppv = NULL;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(DdsDecoder));
if (!This) return E_OUTOFMEMORY;
This->IWICBitmapDecoder_iface.lpVtbl = &DdsDecoder_Vtbl;
This->IWICDdsDecoder_iface.lpVtbl = &DdsDecoder_Dds_Vtbl;
This->IWICWineDecoder_iface.lpVtbl = &DdsDecoder_Wine_Vtbl;
This->ref = 1;
This->initialized = FALSE;
This->stream = NULL;
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": DdsDecoder.lock");
ret = IWICBitmapDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
return ret;
}
static HRESULT WINAPI DdsEncoder_QueryInterface(IWICBitmapEncoder *iface, REFIID iid,
void **ppv)
{
DdsEncoder *This = impl_from_IWICBitmapEncoder(iface);
FIXME("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) ||
IsEqualIID(&IID_IWICBitmapEncoder, iid)) {
*ppv = &This->IWICBitmapEncoder_iface;
}
else {
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI DdsEncoder_AddRef(IWICBitmapEncoder *iface)
{
DdsEncoder *This = impl_from_IWICBitmapEncoder(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI DdsEncoder_Release(IWICBitmapEncoder *iface)
{
DdsEncoder *This = impl_from_IWICBitmapEncoder(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0) {
This->lock.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->lock);
if (This->stream) IStream_Release(This->stream);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI DdsEncoder_Initialize(IWICBitmapEncoder *iface,
IStream *pIStream, WICBitmapEncoderCacheOption cacheOption)
{
FIXME("(%p,%p,%u): stub\n", iface, pIStream, cacheOption);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsEncoder_GetContainerFormat(IWICBitmapEncoder *iface, GUID *format)
{
TRACE("(%p,%p)\n", iface, format);
if (!format)
return E_INVALIDARG;
memcpy(format, &GUID_ContainerFormatDds, sizeof(*format));
return S_OK;
}
static HRESULT WINAPI DdsEncoder_GetEncoderInfo(IWICBitmapEncoder *iface, IWICBitmapEncoderInfo **info)
{
IWICComponentInfo *comp_info;
HRESULT hr;
TRACE("%p,%p\n", iface, info);
if (!info) return E_INVALIDARG;
hr = CreateComponentInfo(&CLSID_WICDdsEncoder, &comp_info);
if (hr == S_OK) {
hr = IWICComponentInfo_QueryInterface(comp_info, &IID_IWICBitmapEncoderInfo, (void **)info);
IWICComponentInfo_Release(comp_info);
}
return hr;
}
static HRESULT WINAPI DdsEncoder_SetColorContexts(IWICBitmapEncoder *iface,
UINT cCount, IWICColorContext **ppIColorContext)
{
FIXME("(%p,%u,%p): stub\n", iface, cCount, ppIColorContext);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsEncoder_SetPalette(IWICBitmapEncoder *iface, IWICPalette *palette)
{
DdsEncoder *This = impl_from_IWICBitmapEncoder(iface);
HRESULT hr;
TRACE("(%p,%p)\n", iface, palette);
EnterCriticalSection(&This->lock);
hr = This->stream ? WINCODEC_ERR_UNSUPPORTEDOPERATION : WINCODEC_ERR_NOTINITIALIZED;
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI DdsEncoder_SetThumbnail(IWICBitmapEncoder *iface, IWICBitmapSource *pIThumbnail)
{
TRACE("(%p,%p)\n", iface, pIThumbnail);
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
static HRESULT WINAPI DdsEncoder_SetPreview(IWICBitmapEncoder *iface, IWICBitmapSource *pIPreview)
{
TRACE("(%p,%p)\n", iface, pIPreview);
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
static HRESULT WINAPI DdsEncoder_CreateNewFrame(IWICBitmapEncoder *iface,
IWICBitmapFrameEncode **ppIFrameEncode, IPropertyBag2 **ppIEncoderOptions)
{
FIXME("(%p,%p,%p): stub\n", iface, ppIFrameEncode, ppIEncoderOptions);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsEncoder_Commit(IWICBitmapEncoder *iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static HRESULT WINAPI DdsEncoder_GetMetadataQueryWriter(IWICBitmapEncoder *iface,
IWICMetadataQueryWriter **ppIMetadataQueryWriter)
{
FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryWriter);
return E_NOTIMPL;
}
static const IWICBitmapEncoderVtbl DdsEncoder_Vtbl = {
DdsEncoder_QueryInterface,
DdsEncoder_AddRef,
DdsEncoder_Release,
DdsEncoder_Initialize,
DdsEncoder_GetContainerFormat,
DdsEncoder_GetEncoderInfo,
DdsEncoder_SetColorContexts,
DdsEncoder_SetPalette,
DdsEncoder_SetThumbnail,
DdsEncoder_SetPreview,
DdsEncoder_CreateNewFrame,
DdsEncoder_Commit,
DdsEncoder_GetMetadataQueryWriter
};
HRESULT DdsEncoder_CreateInstance( REFIID iid, void **ppv)
{
DdsEncoder *This;
HRESULT ret;
TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
*ppv = NULL;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(DdsEncoder));
if (!This) return E_OUTOFMEMORY;
This->IWICBitmapEncoder_iface.lpVtbl = &DdsEncoder_Vtbl;
This->ref = 1;
This->stream = NULL;
This->frame_count = 0;
This->uncommitted_frame = FALSE;
This->committed = FALSE;
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": DdsEncoder.lock");
ret = IWICBitmapEncoder_QueryInterface(&This->IWICBitmapEncoder_iface, iid, ppv);
IWICBitmapEncoder_Release(&This->IWICBitmapEncoder_iface);
return ret;
}
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