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DS GX: Move rendering until first scanline is requested

This commit is contained in:
Vicki Pfau 2017-03-23 21:23:47 -07:00
parent 69f21e1fb4
commit 8f58343e2b
2 changed files with 12 additions and 7 deletions
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1
include/mgba/internal/ds/gx/software.h
View File

@ -93,6 +93,7 @@ struct DSGXSoftwareRenderer {
uint8_t* stencilBuffer;
color_t* scanlineCache;
int sort;
bool flushPending;
struct DSGXVertex* verts;
};

18
src/ds/gx/software.c
View File

@ -697,18 +697,27 @@ static void DSGXSoftwareRendererSetRAM(struct DSGXRenderer* renderer, struct DSG
softwareRenderer->depthBuffer[i + 2] = INT32_MAX;
softwareRenderer->depthBuffer[i + 3] = INT32_MAX;
}
softwareRenderer->flushPending = true;
}
static void DSGXSoftwareRendererDrawScanline(struct DSGXRenderer* renderer, int y) {
struct DSGXSoftwareRenderer* softwareRenderer = (struct DSGXSoftwareRenderer*) renderer;
if (!softwareRenderer->flushPending || y) {
return;
}
size_t p;
for (p = 0; p < DSGXSoftwarePolygonListSize(&softwareRenderer->activePolys); ++p) {
struct DSGXSoftwarePolygon* poly = DSGXSoftwarePolygonListGetPointer(&softwareRenderer->activePolys, p);
DSGXSoftwareEdgeListClear(&softwareRenderer->activeEdges);
_preparePoly(renderer, verts, poly);
_preparePoly(renderer, softwareRenderer->verts, poly);
int y;
for (y = poly->minY; y <= poly->maxY; ++y) {
struct DSGXSoftwareSpan span = {
.poly = poly,
.polyId = DSGXPolygonAttrsGetId(poly->polyParams),
};
size_t i;
for (i = 0; i < DSGXSoftwareEdgeListSize(&softwareRenderer->activeEdges); ++i) {
struct DSGXSoftwareEdge* edge = DSGXSoftwareEdgeListGetPointer(&softwareRenderer->activeEdges, i);
if (edge->y1 < (y << 12)) {
@ -729,12 +738,7 @@ static void DSGXSoftwareRendererSetRAM(struct DSGXRenderer* renderer, struct DSG
}
}
}
}
static void DSGXSoftwareRendererDrawScanline(struct DSGXRenderer* renderer, int y) {
struct DSGXSoftwareRenderer* softwareRenderer = (struct DSGXSoftwareRenderer*) renderer;
UNUSED(softwareRenderer);
UNUSED(y);
softwareRenderer->flushPending = false;
}
static void DSGXSoftwareRendererGetScanline(struct DSGXRenderer* renderer, int y, const color_t** output) {