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msvidc32: Fix calculation of stride and size. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=23175
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=25180
Signed-off-by: Vijay Kiran Kamuju <infyquest@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Michael Müller 2019-03-06 08:57:40 +01:00 committed by Alexandre Julliard
parent e287917a3a
commit fb7f937305
2 changed files with 64 additions and 9 deletions
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39
dlls/msvfw32/tests/msvfw.c
View File

@ -252,6 +252,45 @@ static void test_Locate(void)
ok(err == ICERR_OK, "Query MSVC 16->24: %d\n", err);
bo.biBitCount = 16;
bi.biWidth = 553;
bi.biBitCount = 8;
err = ICDecompressGetFormat(h, &bi, &tmp);
ok(err == ICERR_OK, "Query MSVC output format: %d\n", err);
ok(tmp.biBitCount == 8, "Expected 8 bit, got %d bit\n", tmp.biBitCount);
ok(tmp.biWidth == 552, "Expected width 552, got %d\n", tmp.biWidth);
ok(tmp.biSizeImage == get_stride(552, 8) * 8, "Expected size %d, got %d\n",
get_stride(552, 8) * 8, tmp.biSizeImage);
bi.biBitCount = 15;
err = ICDecompressGetFormat(h, &bi, &tmp);
ok(err == ICERR_BADFORMAT, "Query MSVC output format: %d\n", err);
bi.biBitCount = 16;
err = ICDecompressGetFormat(h, &bi, &tmp);
ok(err == ICERR_OK, "Query MSVC output format: %d\n", err);
ok(tmp.biBitCount == 16, "Expected 16 bit, got %d bit\n", tmp.biBitCount);
ok(tmp.biWidth == 552, "Expected width 552, got %d\n", tmp.biWidth);
ok(tmp.biSizeImage == get_stride(552, 16) * 8, "Expected size %d, got %d\n",
get_stride(552, 16) * 8, tmp.biSizeImage);
bi.biBitCount = 24;
err = ICDecompressGetFormat(h, &bi, &tmp);
ok(err == ICERR_BADFORMAT, "Query MSVC output format: %d\n", err);
bi.biBitCount = 32;
err = ICDecompressGetFormat(h, &bi, &tmp);
ok(err == ICERR_BADFORMAT, "Query MSVC output format: %d\n", err);
bi.biHeight = 17;
bi.biBitCount = 8;
err = ICDecompressGetFormat(h, &bi, &tmp);
ok(err == ICERR_OK, "Query MSVC output format: %d\n", err);
ok(tmp.biHeight == 16, "Expected height 16, got %d\n", tmp.biHeight);
bi.biHeight = 8;
bi.biWidth = 32;
bi.biCompression = mmioFOURCC('m','s','v','c');
err = ICDecompressQuery(h, &bi, &bo);
ok(err == ICERR_BADFORMAT, "Query msvc->RGB16: %d\n", err);

34
dlls/msvidc32/msvideo1.c
View File

@ -70,6 +70,11 @@ typedef struct Msvideo1Context {
int depth;
} Msvideo1Context;
static inline int get_stride(int width, int depth)
{
return ((depth * width + 31) >> 3) & ~3;
}
static void
msvideo1_decode_8bit( int width, int height, const unsigned char *buf, int buf_size,
unsigned char *pixels, int stride)
@ -362,12 +367,17 @@ CRAM_DecompressGetFormat( Msvideo1Context *info, LPBITMAPINFO in, LPBITMAPINFO o
if (in->bmiHeader.biBitCount <= 8)
size += in->bmiHeader.biClrUsed * sizeof(RGBQUAD);
if (in->bmiHeader.biBitCount != 8 && in->bmiHeader.biBitCount != 16)
return ICERR_BADFORMAT;
if( out )
{
memcpy( out, in, size );
out->bmiHeader.biWidth = in->bmiHeader.biWidth & ~1;
out->bmiHeader.biHeight = in->bmiHeader.biHeight & ~1;
out->bmiHeader.biCompression = BI_RGB;
out->bmiHeader.biSizeImage = in->bmiHeader.biHeight
* in->bmiHeader.biWidth *4;
out->bmiHeader.biSizeImage = in->bmiHeader.biHeight *
get_stride(out->bmiHeader.biWidth, out->bmiHeader.biBitCount);
return ICERR_OK;
}
@ -398,6 +408,8 @@ static LRESULT CRAM_DecompressBegin( Msvideo1Context *info, LPBITMAPINFO in, LPB
static void convert_depth(char *input, int depth_in, char *output, BITMAPINFOHEADER *out_hdr)
{
int x, y;
int stride_in = get_stride(out_hdr->biWidth, depth_in);
int stride_out = get_stride(out_hdr->biWidth, out_hdr->biBitCount);
if (depth_in == 16 && out_hdr->biBitCount == 24)
{
@ -409,15 +421,17 @@ static void convert_depth(char *input, int depth_in, char *output, BITMAPINFOHEA
0xc5, 0xce, 0xd6, 0xde, 0xe6, 0xef, 0xf7, 0xff,
};
WORD *src = (WORD *)input;
for (y = 0; y < out_hdr->biHeight; y++)
{
WORD *src_row = (WORD *)(input + y * stride_in);
char *out_row = output + y * stride_out;
for (x = 0; x < out_hdr->biWidth; x++)
{
WORD pixel = *src++;
*output++ = convert_5to8[(pixel & 0x7c00u) >> 10];
*output++ = convert_5to8[(pixel & 0x03e0u) >> 5];
*output++ = convert_5to8[(pixel & 0x001fu)];
WORD pixel = *src_row++;
*out_row++ = convert_5to8[(pixel & 0x7c00u) >> 10];
*out_row++ = convert_5to8[(pixel & 0x03e0u) >> 5];
*out_row++ = convert_5to8[(pixel & 0x001fu)];
}
}
}
@ -439,7 +453,6 @@ static LRESULT CRAM_Decompress( Msvideo1Context *info, ICDECOMPRESS *icd, DWORD
width = icd->lpbiInput->biWidth;
height = icd->lpbiInput->biHeight;
stride = width; /* in bytes or 16bit words */
sz = icd->lpbiInput->biSizeImage;
output = icd->lpOutput;
@ -452,11 +465,13 @@ static LRESULT CRAM_Decompress( Msvideo1Context *info, ICDECOMPRESS *icd, DWORD
if (info->depth == 8)
{
stride = get_stride(width, 8);
msvideo1_decode_8bit( width, height, icd->lpInput, sz,
output, stride );
}
else
{
stride = get_stride(width, 16) / 2;
msvideo1_decode_16bit( width, height, icd->lpInput, sz,
output, stride );
}
@ -484,7 +499,6 @@ static LRESULT CRAM_DecompressEx( Msvideo1Context *info, ICDECOMPRESSEX *icd, DW
width = icd->lpbiSrc->biWidth;
height = icd->lpbiSrc->biHeight;
stride = width;
sz = icd->lpbiSrc->biSizeImage;
output = icd->lpDst;
@ -497,11 +511,13 @@ static LRESULT CRAM_DecompressEx( Msvideo1Context *info, ICDECOMPRESSEX *icd, DW
if (info->depth == 8)
{
stride = get_stride(width, 8);
msvideo1_decode_8bit( width, height, icd->lpSrc, sz,
output, stride );
}
else
{
stride = get_stride(width, 16) / 2;
msvideo1_decode_16bit( width, height, icd->lpSrc, sz,
output, stride );
}