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Reuse code for splitting WIN0 for WIN1

This commit is contained in:
Jeffrey Pfau 2013-07-31 00:48:57 -07:00
parent d2f15f4af4
commit 3301cc9f97
1 changed files with 40 additions and 57 deletions
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97
src/gba/renderers/video-software.c
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@ -321,6 +321,44 @@ static void GBAVideoSoftwareRendererWritePalette(struct GBAVideoRenderer* render
} }
} }
#define BREAK_WINDOW(WIN) \
int activeWindow; \
int startX = 0; \
if (softwareRenderer->WIN ## H.end > 0) { \
for (activeWindow = 0; activeWindow < softwareRenderer->nWindows; ++activeWindow) { \
if (softwareRenderer->WIN ## H.start < softwareRenderer->windows[activeWindow].endX) { \
struct Window oldWindow = softwareRenderer->windows[activeWindow]; \
if (softwareRenderer->WIN ## H.start > startX) { \
int nextWindow = softwareRenderer->nWindows; \
++softwareRenderer->nWindows; \
for (; nextWindow > activeWindow; --nextWindow) { \
softwareRenderer->windows[nextWindow] = softwareRenderer->windows[nextWindow - 1]; \
} \
softwareRenderer->windows[activeWindow].endX = softwareRenderer->WIN ## H.start; \
++activeWindow; \
} \
softwareRenderer->windows[activeWindow].control = softwareRenderer->WIN; \
softwareRenderer->windows[activeWindow].endX = softwareRenderer->WIN ## H.end; \
if (softwareRenderer->WIN ## H.end >= oldWindow.endX) { \
for (++activeWindow; softwareRenderer->WIN ## H.end >= softwareRenderer->windows[activeWindow].endX && softwareRenderer->nWindows > 1; ++activeWindow) { \
softwareRenderer->windows[activeWindow] = softwareRenderer->windows[activeWindow + 1]; \
--softwareRenderer->nWindows; \
} \
} else { \
++activeWindow; \
int nextWindow = softwareRenderer->nWindows; \
++softwareRenderer->nWindows; \
for (; nextWindow > activeWindow; --nextWindow) { \
softwareRenderer->windows[nextWindow] = softwareRenderer->windows[nextWindow - 1]; \
} \
softwareRenderer->windows[activeWindow] = oldWindow; \
} \
break; \
} \
startX = softwareRenderer->windows[activeWindow].endX; \
} \
}
static void GBAVideoSoftwareRendererDrawScanline(struct GBAVideoRenderer* renderer, int y) { static void GBAVideoSoftwareRendererDrawScanline(struct GBAVideoRenderer* renderer, int y) {
struct GBAVideoSoftwareRenderer* softwareRenderer = (struct GBAVideoSoftwareRenderer*) renderer; struct GBAVideoSoftwareRenderer* softwareRenderer = (struct GBAVideoSoftwareRenderer*) renderer;
if (renderer->frameskip > 0) { if (renderer->frameskip > 0) {
@ -352,65 +390,10 @@ static void GBAVideoSoftwareRendererDrawScanline(struct GBAVideoRenderer* render
if (softwareRenderer->dispcnt.win0Enable || softwareRenderer->dispcnt.win1Enable) { if (softwareRenderer->dispcnt.win0Enable || softwareRenderer->dispcnt.win1Enable) {
softwareRenderer->windows[0].control = softwareRenderer->winout; softwareRenderer->windows[0].control = softwareRenderer->winout;
if (softwareRenderer->dispcnt.win1Enable && y < softwareRenderer->win1V.end && y >= softwareRenderer->win1V.start) { if (softwareRenderer->dispcnt.win1Enable && y < softwareRenderer->win1V.end && y >= softwareRenderer->win1V.start) {
if (softwareRenderer->win1H.start > 0) { BREAK_WINDOW(win1);
softwareRenderer->windows[softwareRenderer->nWindows].control = softwareRenderer->win1;
softwareRenderer->windows[softwareRenderer->nWindows].endX = softwareRenderer->win1H.start;
++softwareRenderer->nWindows;
softwareRenderer->windows[softwareRenderer->nWindows].endX = VIDEO_HORIZONTAL_PIXELS;
} else {
softwareRenderer->windows[softwareRenderer->nWindows - 1].control = softwareRenderer->win1;
}
if (softwareRenderer->win1H.end < VIDEO_HORIZONTAL_PIXELS) {
softwareRenderer->windows[softwareRenderer->nWindows].control = softwareRenderer->winout;
softwareRenderer->windows[softwareRenderer->nWindows].endX = softwareRenderer->win1H.end;
++softwareRenderer->nWindows;
softwareRenderer->windows[softwareRenderer->nWindows].endX = VIDEO_HORIZONTAL_PIXELS;
} else {
softwareRenderer->windows[softwareRenderer->nWindows - 1].endX = softwareRenderer->win1H.end;
}
} }
if (softwareRenderer->dispcnt.win0Enable && y < softwareRenderer->win0V.end && y >= softwareRenderer->win0V.start) { if (softwareRenderer->dispcnt.win0Enable && y < softwareRenderer->win0V.end && y >= softwareRenderer->win0V.start) {
int activeWindow; BREAK_WINDOW(win0);
int startX = 0;
for (activeWindow = 0; activeWindow < softwareRenderer->nWindows; ++activeWindow) {
if (softwareRenderer->win0H.start < softwareRenderer->windows[activeWindow].endX) {
// We start in this region
struct Window oldWindow = softwareRenderer->windows[activeWindow];
if (softwareRenderer->win0H.start > startX) {
// We need to split the region
int nextWindow = softwareRenderer->nWindows;
++softwareRenderer->nWindows;
for (; nextWindow > activeWindow; --nextWindow) {
softwareRenderer->windows[nextWindow] = softwareRenderer->windows[nextWindow - 1];
}
softwareRenderer->windows[activeWindow].endX = softwareRenderer->win0H.start;
++activeWindow;
}
softwareRenderer->windows[activeWindow].control = softwareRenderer->win0;
softwareRenderer->windows[activeWindow].endX = softwareRenderer->win0H.end;
if (softwareRenderer->win0H.end >= oldWindow.endX) {
// Consume subsequent regions
for (++activeWindow; softwareRenderer->win0H.end >= softwareRenderer->windows[activeWindow].endX; ++activeWindow) {
softwareRenderer->windows[activeWindow] = softwareRenderer->windows[activeWindow + 1];
--softwareRenderer->nWindows;
if (softwareRenderer->nWindows <= 1) {
break;
}
}
} else {
// ...and the other end
++activeWindow;
int nextWindow = softwareRenderer->nWindows;
++softwareRenderer->nWindows;
for (; nextWindow > activeWindow; --nextWindow) {
softwareRenderer->windows[nextWindow] = softwareRenderer->windows[nextWindow - 1];
}
softwareRenderer->windows[activeWindow] = oldWindow;
}
break;
}
startX = softwareRenderer->windows[activeWindow].endX;
}
} }
} else { } else {
softwareRenderer->windows[0].control.packed = 0xFF; softwareRenderer->windows[0].control.packed = 0xFF;