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Fix VGLGetXY(), VGLSetXY() and VGLClear() for MEMBUFs in depths > 8.

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This depends on PixelBytes being properly initialized, which it is for
all bitmaps constructed by libvgl except mouse cursor bitmaps.
This commit is contained in:
Bruce Evans 2019-03-28 12:28:29 +00:00
parent 5bf271b2f8
commit baca0ce6b3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=345639
1 changed files with 36 additions and 0 deletions
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36
lib/libvgl/simple.c
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@ -102,6 +102,15 @@ VGLSetXY(VGLBitmap *object, int x, int y, u_long color)
!VGLMouseFreeze(x, y, 1, 1, 0x80000000 | color)) {
switch (object->Type) {
case MEMBUF:
switch (object->PixelBytes) {
case 2:
goto vidbuf16;
case 3:
goto vidbuf24;
case 4:
goto vidbuf32;
}
/* fallthrough */
case VIDBUF8:
object->Bitmap[y*object->VXsize+x]=((byte)color);
break;
@ -109,8 +118,11 @@ VGLSetXY(VGLBitmap *object, int x, int y, u_long color)
object->Bitmap[VGLSetSegment(y*object->VXsize+x)]=((byte)color);
break;
case VIDBUF16:
vidbuf16:
case VIDBUF24:
vidbuf24:
case VIDBUF32:
vidbuf32:
color2mem(color, b, object->PixelBytes);
bcopy(b, &object->Bitmap[(y*object->VXsize+x) * object->PixelBytes],
object->PixelBytes);
@ -156,13 +168,25 @@ __VGLGetXY(VGLBitmap *object, int x, int y)
switch (object->Type) {
case MEMBUF:
switch (object->PixelBytes) {
case 2:
goto vidbuf16;
case 3:
goto vidbuf24;
case 4:
goto vidbuf32;
}
/* fallthrough */
case VIDBUF8:
return object->Bitmap[((y*object->VXsize)+x)];
case VIDBUF8S:
return object->Bitmap[VGLSetSegment(y*object->VXsize+x)];
case VIDBUF16:
vidbuf16:
case VIDBUF24:
vidbuf24:
case VIDBUF32:
vidbuf32:
bcopy(&object->Bitmap[(y*object->VXsize+x) * object->PixelBytes],
b, object->PixelBytes);
return (mem2color(b, object->PixelBytes));
@ -525,6 +549,15 @@ VGLClear(VGLBitmap *object, u_long color)
VGLMouseFreeze(0, 0, object->Xsize, object->Ysize, color);
switch (object->Type) {
case MEMBUF:
switch (object->PixelBytes) {
case 2:
goto vidbuf16;
case 3:
goto vidbuf24;
case 4:
goto vidbuf32;
}
/* fallthrough */
case VIDBUF8:
memset(object->Bitmap, (byte)color, object->VXsize*object->VYsize);
break;
@ -539,8 +572,11 @@ VGLClear(VGLBitmap *object, u_long color)
}
break;
case VIDBUF16:
vidbuf16:
case VIDBUF24:
vidbuf24:
case VIDBUF32:
vidbuf32:
color2mem(color, b, object->PixelBytes);
total = object->VXsize*object->VYsize*object->PixelBytes;
for (i = 0; i < total; i += object->PixelBytes)