[1/5] windowscodecs: Implement JpegEncoder_Frame_SetPixelFormat.
Vincent Povirk
madewokherd at gmail.com
Mon Apr 16 10:56:12 CDT 2012
-------------- next part --------------
From 00fc0d967bda065a7dff72ae8c0c474155031b0a Mon Sep 17 00:00:00 2001
From: Vincent Povirk <vincent at codeweavers.com>
Date: Wed, 11 Apr 2012 15:50:30 -0500
Subject: [PATCH 1/8] windowscodecs: Implement
JpegEncoder_Frame_SetPixelFormat.
---
dlls/windowscodecs/jpegformat.c | 45 +++++++++++++++++++++++++++++++++++++-
1 files changed, 43 insertions(+), 2 deletions(-)
diff --git a/dlls/windowscodecs/jpegformat.c b/dlls/windowscodecs/jpegformat.c
index 0149043..57008fd 100644
--- a/dlls/windowscodecs/jpegformat.c
+++ b/dlls/windowscodecs/jpegformat.c
@@ -701,6 +701,21 @@ HRESULT JpegDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
return ret;
}
+typedef struct jpeg_compress_format {
+ const WICPixelFormatGUID *guid;
+ int bpp;
+ int num_components;
+ J_COLOR_SPACE color_space;
+ int swap_rgb;
+} jpeg_compress_format;
+
+static const jpeg_compress_format compress_formats[] = {
+ { &GUID_WICPixelFormat24bppBGR, 24, 3, JCS_RGB, 1 },
+ { &GUID_WICPixelFormat32bppCMYK, 32, 4, JCS_CMYK },
+ { &GUID_WICPixelFormat8bppGray, 8, 1, JCS_GRAYSCALE },
+ { 0 }
+};
+
typedef struct JpegEncoder {
IWICBitmapEncoder IWICBitmapEncoder_iface;
IWICBitmapFrameEncode IWICBitmapFrameEncode_iface;
@@ -713,6 +728,7 @@ typedef struct JpegEncoder {
int frame_initialized;
int started_compress;
UINT width, height;
+ const jpeg_compress_format *format;
IStream *stream;
CRITICAL_SECTION lock;
BYTE dest_buffer[1024];
@@ -865,8 +881,32 @@ static HRESULT WINAPI JpegEncoder_Frame_SetResolution(IWICBitmapFrameEncode *ifa
static HRESULT WINAPI JpegEncoder_Frame_SetPixelFormat(IWICBitmapFrameEncode *iface,
WICPixelFormatGUID *pPixelFormat)
{
- FIXME("(%p,%s): stub\n", iface, debugstr_guid(pPixelFormat));
- return E_NOTIMPL;
+ JpegEncoder *This = impl_from_IWICBitmapFrameEncode(iface);
+ int i;
+ TRACE("(%p,%s)\n", iface, debugstr_guid(pPixelFormat));
+
+ EnterCriticalSection(&This->lock);
+
+ if (!This->frame_initialized || This->started_compress)
+ {
+ LeaveCriticalSection(&This->lock);
+ return WINCODEC_ERR_WRONGSTATE;
+ }
+
+ for (i=0; compress_formats[i].guid; i++)
+ {
+ if (memcmp(compress_formats[i].guid, pPixelFormat, sizeof(GUID)) == 0)
+ break;
+ }
+
+ if (!compress_formats[i].guid) i = 0;
+
+ This->format = &compress_formats[i];
+ memcpy(pPixelFormat, This->format->guid, sizeof(GUID));
+
+ LeaveCriticalSection(&This->lock);
+
+ return S_OK;
}
static HRESULT WINAPI JpegEncoder_Frame_SetColorContexts(IWICBitmapFrameEncode *iface,
@@ -1173,6 +1213,7 @@ HRESULT JpegEncoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
This->frame_initialized = 0;
This->started_compress = 0;
This->width = This->height = 0;
+ This->format = NULL;
This->stream = NULL;
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": JpegEncoder.lock");
--
1.7.9.1
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