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Out of bounds start coordinates are treated as 0 for windows (fixes #82)

This commit is contained in:
Jeffrey Pfau 2014-07-05 14:40:15 -07:00
parent 7142a0f820
commit ced5220975
1 changed files with 12 additions and 0 deletions
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12
src/gba/renderers/video-software.c
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@ -259,24 +259,36 @@ static uint16_t GBAVideoSoftwareRendererWriteVideoRegister(struct GBAVideoRender
break;
case REG_WIN0H:
softwareRenderer->winN[0].h.packed = value;
if (softwareRenderer->winN[0].h.start > VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->winN[0].h.start = 0;
}
if (softwareRenderer->winN[0].h.start > softwareRenderer->winN[0].h.end || softwareRenderer->winN[0].h.end > VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->winN[0].h.end = VIDEO_HORIZONTAL_PIXELS;
}
break;
case REG_WIN1H:
softwareRenderer->winN[1].h.packed = value;
if (softwareRenderer->winN[1].h.start > VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->winN[1].h.start = 0;
}
if (softwareRenderer->winN[1].h.start > softwareRenderer->winN[1].h.end || softwareRenderer->winN[1].h.end > VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->winN[1].h.end = VIDEO_HORIZONTAL_PIXELS;
}
break;
case REG_WIN0V:
softwareRenderer->winN[0].v.packed = value;
if (softwareRenderer->winN[0].v.start > VIDEO_VERTICAL_PIXELS) {
softwareRenderer->winN[0].v.start = 0;
}
if (softwareRenderer->winN[0].v.start > softwareRenderer->winN[0].v.end || softwareRenderer->winN[0].v.end > VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->winN[0].v.end = VIDEO_VERTICAL_PIXELS;
}
break;
case REG_WIN1V:
softwareRenderer->winN[1].v.packed = value;
if (softwareRenderer->winN[1].v.start > VIDEO_VERTICAL_PIXELS) {
softwareRenderer->winN[1].v.start = 0;
}
if (softwareRenderer->winN[1].v.start > softwareRenderer->winN[1].v.end || softwareRenderer->winN[1].v.end > VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->winN[1].v.end = VIDEO_VERTICAL_PIXELS;
}