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Window bounds enforced

This commit is contained in:
Jeffrey Pfau 2013-07-31 00:48:34 -07:00
parent 0939d5e2bc
commit d2f15f4af4
1 changed files with 24 additions and 0 deletions
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24
src/gba/renderers/video-software.c
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@ -248,15 +248,39 @@ static uint16_t GBAVideoSoftwareRendererWriteVideoRegister(struct GBAVideoRender
break;
case REG_WIN0H:
softwareRenderer->win0H.packed = value;
if (softwareRenderer->win0H.start >= softwareRenderer->win0H.end || softwareRenderer->win0H.end > VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->win0H.end = VIDEO_HORIZONTAL_PIXELS;
}
if (softwareRenderer->win0H.start >= VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->win0H.start = 0;
}
break;
case REG_WIN1H:
softwareRenderer->win1H.packed = value;
if (softwareRenderer->win1H.start > softwareRenderer->win1H.end || softwareRenderer->win1H.end > VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->win1H.end = VIDEO_HORIZONTAL_PIXELS;
}
if (softwareRenderer->win1H.start >= VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->win1H.start = 0;
}
break;
case REG_WIN0V:
softwareRenderer->win0V.packed = value;
if (softwareRenderer->win0V.start > softwareRenderer->win0V.end || softwareRenderer->win0V.end > VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->win0V.end = VIDEO_VERTICAL_PIXELS;
}
if (softwareRenderer->win0V.start >= VIDEO_VERTICAL_PIXELS) {
softwareRenderer->win0V.start = 0;
}
break;
case REG_WIN1V:
softwareRenderer->win1V.packed = value;
if (softwareRenderer->win1V.start > softwareRenderer->win1V.end || softwareRenderer->win1V.end > VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->win1V.end = VIDEO_VERTICAL_PIXELS;
}
if (softwareRenderer->win1V.start >= VIDEO_VERTICAL_PIXELS) {
softwareRenderer->win1V.start = 0;
}
break;
case REG_WININ:
softwareRenderer->win0.packed = value;