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Preprocess OBJ heights

This commit is contained in:
Jeffrey Pfau 2014-01-21 23:41:13 -08:00
parent 04c3b61d1c
commit a8921116dc
2 changed files with 41 additions and 34 deletions
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73
src/gba/renderers/video-software.c
View File

@ -5,6 +5,25 @@
#include <string.h>
static const int _objSizes[32] = {
8, 8,
16, 16,
32, 32,
64, 64,
16, 8,
32, 8,
32, 16,
64, 32,
8, 16,
8, 32,
16, 32,
32, 64,
0, 0,
0, 0,
0, 0,
0, 0
};
static void GBAVideoSoftwareRendererInit(struct GBAVideoRenderer* renderer);
static void GBAVideoSoftwareRendererDeinit(struct GBAVideoRenderer* renderer);
static void GBAVideoSoftwareRendererWriteOAM(struct GBAVideoRenderer* renderer, uint32_t oam);
@ -351,6 +370,12 @@ static void _cleanOAM(struct GBAVideoSoftwareRenderer* renderer) {
for (i = 0; i < 128; ++i) {
struct GBAObj* obj = &renderer->d.oam->obj[i];
if (obj->transformed || !obj->disable) {
int height = _objSizes[obj->shape * 8 + obj->size * 2 + 1];
if (obj->transformed) {
height <<= ((struct GBATransformedObj*) obj)->doublesize;
}
renderer->sprites[oamMax].y = obj->y;
renderer->sprites[oamMax].endY = obj->y + height;
renderer->sprites[oamMax].obj = *obj;
++oamMax;
}
@ -570,6 +595,8 @@ static void _drawScanline(struct GBAVideoSoftwareRenderer* renderer, int y) {
if (renderer->oamDirty) {
_cleanOAM(renderer);
}
int mosaicV = renderer->mosaic.objV + 1;
int mosaicY = y - (y % mosaicV);
for (w = 0; w < renderer->nWindows; ++w) {
renderer->start = renderer->end;
renderer->end = renderer->windows[w].endX;
@ -580,11 +607,18 @@ static void _drawScanline(struct GBAVideoSoftwareRenderer* renderer, int y) {
int i;
int drawn;
for (i = 0; i < renderer->oamMax; ++i) {
int localY = y;
struct GBAVideoSoftwareSprite* sprite = &renderer->sprites[i];
if (sprite->obj.mosaic) {
localY = mosaicY;
}
if ((localY < sprite->y && (sprite->endY - 256 < 0 || localY >= sprite->endY - 256)) || localY >= sprite->endY) {
continue;
}
if (sprite->obj.transformed) {
drawn = _preprocessTransformedSprite(renderer, &sprite->tobj, y);
drawn = _preprocessTransformedSprite(renderer, &sprite->tobj, localY);
} else {
drawn = _preprocessSprite(renderer, &sprite->obj, y);
drawn = _preprocessSprite(renderer, &sprite->obj, localY);
}
spriteLayers |= drawn << sprite->obj.priority;
}
@ -1231,25 +1265,6 @@ static void _drawBackgroundMode5(struct GBAVideoSoftwareRenderer* renderer, stru
}
}
static const int _objSizes[32] = {
8, 8,
16, 16,
32, 32,
64, 64,
16, 8,
32, 8,
32, 16,
64, 32,
8, 16,
8, 32,
16, 32,
32, 64,
0, 0,
0, 0,
0, 0,
0, 0
};
#define SPRITE_NORMAL_LOOP(DEPTH, TYPE) \
SPRITE_YBASE_ ## DEPTH(inY); \
for (; outX < condition; ++outX, inX += xOffset) { \
@ -1329,15 +1344,8 @@ static const int _objSizes[32] = {
}
static int _preprocessSprite(struct GBAVideoSoftwareRenderer* renderer, struct GBAObj* sprite, int y) {
int height = _objSizes[sprite->shape * 8 + sprite->size * 2 + 1];
if (sprite->mosaic) {
int mosaicV = renderer->mosaic.objV + 1;
y -= y % mosaicV;
}
if ((y < sprite->y && (sprite->y + height - 256 < 0 || y >= sprite->y + height - 256)) || y >= sprite->y + height) {
return 0;
}
int width = _objSizes[sprite->shape * 8 + sprite->size * 2];
int height = _objSizes[sprite->shape * 8 + sprite->size * 2 + 1];
int start = renderer->start;
int end = renderer->end;
uint32_t flags = sprite->priority << OFFSET_PRIORITY;
@ -1402,13 +1410,10 @@ static int _preprocessSprite(struct GBAVideoSoftwareRenderer* renderer, struct G
}
static int _preprocessTransformedSprite(struct GBAVideoSoftwareRenderer* renderer, struct GBATransformedObj* sprite, int y) {
int height = _objSizes[sprite->shape * 8 + sprite->size * 2 + 1];
int totalHeight = height << sprite->doublesize;
if ((y < sprite->y && (sprite->y + totalHeight - 256 < 0 || y >= sprite->y + totalHeight - 256)) || y >= sprite->y + totalHeight) {
return 0;
}
int width = _objSizes[sprite->shape * 8 + sprite->size * 2];
int height = _objSizes[sprite->shape * 8 + sprite->size * 2 + 1];
int totalWidth = width << sprite->doublesize;
int totalHeight = height << sprite->doublesize;
int start = renderer->start;
int end = renderer->end;
uint32_t flags = sprite->priority << OFFSET_PRIORITY;

2
src/gba/renderers/video-software.h
View File

@ -16,6 +16,8 @@ struct GBAVideoSoftwareSprite {
struct GBAObj obj;
struct GBATransformedObj tobj;
};
int y;
int endY;
};
struct GBAVideoSoftwareBackground {