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Added 16 (565) -> 15 (555) bit depth converter.

This commit is contained in:
Marcus Meissner 2000-10-12 23:05:48 +00:00 committed by Alexandre Julliard
parent beca6ada2a
commit fad4593a74
2 changed files with 24 additions and 2 deletions
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24
dlls/ddraw/convert.c
View File

@ -157,6 +157,27 @@ static void palette_convert_24_to_8(
((unsigned int) palent[i].peBlue));
}
/* *************************************
16 bpp to 15 bpp
************************************* */
static void pixel_convert_15_to_16(
void *src, void *dst, DWORD width, DWORD height, LONG pitch,
IDirectDrawPaletteImpl* palette
) {
unsigned short *c_src = (unsigned short *) src;
unsigned short *c_dst = (unsigned short *) dst;
int y;
for (y = height; y--; ) {
unsigned short * srclineend = c_src+width;
while (c_src < srclineend ) {
unsigned short val = *c_src++;
*c_dst++=((val&0xFFC0)>>1)|(val&0x001f);
}
c_src+=((pitch/2)-width);
}
}
/* *************************************
32 bpp to 16 bpp
************************************* */
@ -203,11 +224,12 @@ static void pixel_convert_32_to_24(
}
}
Convert ModeEmulations[6] = {
Convert ModeEmulations[7] = {
{ { 32, 24, 0x00FF0000, 0x0000FF00, 0x000000FF }, { 24, 24, 0xFF0000, 0x0000FF00, 0x00FF }, { pixel_convert_32_to_24, NULL } },
{ { 32, 24, 0x00FF0000, 0x0000FF00, 0x000000FF }, { 8, 8, 0x00, 0x00, 0x00 }, { pixel_convert_32_to_8, palette_convert_24_to_8 } },
{ { 32, 24, 0x00FF0000, 0x0000FF00, 0x000000FF }, { 16, 16, 0xF800, 0x07E0, 0x001F }, { pixel_convert_32_to_16, NULL } },
{ { 24, 24, 0xFF0000, 0x00FF00, 0x0000FF }, { 8, 8, 0x00, 0x00, 0x00 }, { pixel_convert_24_to_8, palette_convert_24_to_8 } },
{ { 16, 15, 0x7C00, 0x03E0, 0x001F }, { 16,16, 0xf800, 0x07e0, 0x001f }, { pixel_convert_15_to_16, NULL } },
{ { 16, 16, 0xF800, 0x07E0, 0x001F }, { 8, 8, 0x00, 0x00, 0x00 }, { pixel_convert_16_to_8, palette_convert_16_to_8 } },
{ { 16, 15, 0x7C00, 0x03E0, 0x001F }, { 8, 8, 0x00, 0x00, 0x00 }, { pixel_convert_16_to_8, palette_convert_15_to_8 } },
};

2
dlls/ddraw/ddraw_private.h
View File

@ -380,7 +380,7 @@ typedef struct {
ConvertFuncs funcs;
} Convert;
extern Convert ModeEmulations[6];
extern Convert ModeEmulations[7];
extern int _common_depth_to_pixelformat(DWORD depth,LPDIRECTDRAW ddraw);
extern HRESULT create_direct3d(LPVOID *obj,IDirectDraw2Impl*);