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

dlls/ddraw/convert.c

@@ -158,6 +158,27 @@ static void palette_convert_24_to_8(
 }
 
 /* *************************************
+      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
    ************************************* */
 static void pixel_convert_32_to_16(
@@ -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 } },
 };

dlls/ddraw/ddraw_private.h

@@ -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*);