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GB Video: Sprite enhancements

This commit is contained in:
Jeffrey Pfau 2016-01-22 20:24:21 -08:00
parent 90d280026d
commit d3a204086d
2 changed files with 36 additions and 42 deletions
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73
src/gb/renderers/software.c
View File

@ -97,22 +97,22 @@ static uint8_t GBVideoSoftwareRendererWriteVideoRegister(struct GBVideoRenderer*
softwareRenderer->lcdc = value;
break;
case REG_BGP:
softwareRenderer->bgPalette[0] = GB_PALETTE[value & 3];
softwareRenderer->bgPalette[1] = GB_PALETTE[(value >> 2) & 3];
softwareRenderer->bgPalette[2] = GB_PALETTE[(value >> 4) & 3];
softwareRenderer->bgPalette[3] = GB_PALETTE[(value >> 6) & 3];
softwareRenderer->palette[0] = GB_PALETTE[value & 3];
softwareRenderer->palette[1] = GB_PALETTE[(value >> 2) & 3];
softwareRenderer->palette[2] = GB_PALETTE[(value >> 4) & 3];
softwareRenderer->palette[3] = GB_PALETTE[(value >> 6) & 3];
break;
case REG_OBP0:
softwareRenderer->objPalette[0][0] = GB_PALETTE[value & 3];
softwareRenderer->objPalette[0][1] = GB_PALETTE[(value >> 2) & 3];
softwareRenderer->objPalette[0][2] = GB_PALETTE[(value >> 4) & 3];
softwareRenderer->objPalette[0][3] = GB_PALETTE[(value >> 6) & 3];
softwareRenderer->palette[8 * 4 + 0] = GB_PALETTE[value & 3];
softwareRenderer->palette[8 * 4 + 1] = GB_PALETTE[(value >> 2) & 3];
softwareRenderer->palette[8 * 4 + 2] = GB_PALETTE[(value >> 4) & 3];
softwareRenderer->palette[8 * 4 + 3] = GB_PALETTE[(value >> 6) & 3];
break;
case REG_OBP1:
softwareRenderer->objPalette[1][0] = GB_PALETTE[value & 3];
softwareRenderer->objPalette[1][1] = GB_PALETTE[(value >> 2) & 3];
softwareRenderer->objPalette[1][2] = GB_PALETTE[(value >> 4) & 3];
softwareRenderer->objPalette[1][3] = GB_PALETTE[(value >> 6) & 3];
softwareRenderer->palette[9 * 4 + 0] = GB_PALETTE[value & 3];
softwareRenderer->palette[9 * 4 + 1] = GB_PALETTE[(value >> 2) & 3];
softwareRenderer->palette[9 * 4 + 2] = GB_PALETTE[(value >> 4) & 3];
softwareRenderer->palette[9 * 4 + 3] = GB_PALETTE[(value >> 6) & 3];
break;
case REG_SCY:
softwareRenderer->scy = value;
@ -133,11 +133,6 @@ static uint8_t GBVideoSoftwareRendererWriteVideoRegister(struct GBVideoRenderer*
static void GBVideoSoftwareRendererDrawScanline(struct GBVideoRenderer* renderer, int y) {
struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
size_t x;
for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; ++x) {
softwareRenderer->row[x] = GB_PALETTE[0];
}
if (softwareRenderer->oamDirty) {
_cleanOAM(softwareRenderer);
}
@ -146,14 +141,21 @@ static void GBVideoSoftwareRendererDrawScanline(struct GBVideoRenderer* renderer
if (GBRegisterLCDCIsTileMap(softwareRenderer->lcdc)) {
maps += GB_SIZE_MAP;
}
GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, 0, y, softwareRenderer->scx, softwareRenderer->scy);
size_t x;
if (GBRegisterLCDCIsBgEnable(softwareRenderer->lcdc)) {
GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, 0, y, softwareRenderer->scx, softwareRenderer->scy);
if (GBRegisterLCDCIsWindow(softwareRenderer->lcdc) && softwareRenderer->wy <= y) {
maps = &softwareRenderer->d.vram[GB_BASE_MAP];
if (GBRegisterLCDCIsWindowTileMap(softwareRenderer->lcdc)) {
maps += GB_SIZE_MAP;
if (GBRegisterLCDCIsWindow(softwareRenderer->lcdc) && softwareRenderer->wy <= y) {
maps = &softwareRenderer->d.vram[GB_BASE_MAP];
if (GBRegisterLCDCIsWindowTileMap(softwareRenderer->lcdc)) {
maps += GB_SIZE_MAP;
}
GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, 0, y, 7 - softwareRenderer->wx, -softwareRenderer->wy);
}
} else {
for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; ++x) {
softwareRenderer->row[x] = 0;
}
GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, 0, y, 7 - softwareRenderer->wx, -softwareRenderer->wy);
}
int spriteHeight = 8;
@ -169,17 +171,9 @@ static void GBVideoSoftwareRendererDrawScanline(struct GBVideoRenderer* renderer
}
color_t* row = &softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * y];
#ifdef COLOR_16_BIT
#if defined(__ARM_NEON) && !defined(__APPLE__)
_to16Bit(row, softwareRenderer->row, GB_VIDEO_HORIZONTAL_PIXELS);
#else
for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; ++x) {
row[x] = softwareRenderer->row[x];
row[x] = softwareRenderer->palette[softwareRenderer->row[x]];
}
#endif
#else
memcpy(row, softwareRenderer->row, GB_VIDEO_HORIZONTAL_PIXELS * sizeof(*row));
#endif
}
static void _cleanOAM(struct GBVideoSoftwareRenderer* renderer) {
@ -189,7 +183,7 @@ static void _cleanOAM(struct GBVideoSoftwareRenderer* renderer) {
int i;
for (i = 0; i < 40; ++i) {
uint8_t y = renderer->d.oam->obj[i].y;
if (y < 16 || y >= GB_VIDEO_VERTICAL_PIXELS + 16) {
if (y == 0 || y >= GB_VIDEO_VERTICAL_PIXELS + 16) {
continue;
}
// TODO: Sort
@ -229,7 +223,7 @@ static void GBVideoSoftwareRendererDrawBackground(struct GBVideoSoftwareRenderer
uint8_t tileDataUpper = data[(bgTile * 8 + bottomY) * 2 + 1];
tileDataUpper >>= bottomX;
tileDataLower >>= bottomX;
renderer->row[x] = renderer->bgPalette[((tileDataUpper & 1) << 1) | (tileDataLower & 1)];
renderer->row[x] = ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
}
}
@ -239,12 +233,12 @@ static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* rende
int bottomY;
if (GBObjAttributesIsYFlip(obj->attr)) {
bottomY = 7 - ((y - obj->y - 16) & 7);
if (y - obj->y < -8) {
if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - obj->y < -8) {
++tileOffset;
}
} else {
bottomY = (y - obj->y - 16) & 7;
if (y - obj->y >= -8) {
if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - obj->y >= -8) {
++tileOffset;
}
}
@ -256,7 +250,8 @@ static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* rende
if (x < 0) {
x = 0;
}
int p = GBObjAttributesGetPalette(obj->attr);
uint8_t mask = GBObjAttributesIsPriority(obj->attr) ? 0 : 0x20;
int p = (GBObjAttributesGetPalette(obj->attr) + 8) * 4;
for (; x < end; ++x) {
int bottomX;
if (GBObjAttributesIsXFlip(obj->attr)) {
@ -270,8 +265,8 @@ static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* rende
tileDataUpper >>= bottomX;
tileDataLower >>= bottomX;
color_t current = renderer->row[x];
if (((tileDataUpper | tileDataLower) & 1) && (!GBObjAttributesIsPriority(obj->attr) || current == GB_PALETTE[0])) {
renderer->row[x] = renderer->objPalette[p][((tileDataUpper & 1) << 1) | (tileDataLower & 1)];
if (((tileDataUpper | tileDataLower) & 1) && current <= mask) {
renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
}
}
}

5
src/gb/renderers/software.h
View File

@ -22,10 +22,9 @@ struct GBVideoSoftwareRenderer {
color_t* outputBuffer;
int outputBufferStride;
uint32_t row[GB_VIDEO_HORIZONTAL_PIXELS];
uint8_t row[GB_VIDEO_HORIZONTAL_PIXELS + 8];
color_t bgPalette[4];
color_t objPalette[2][4];
color_t palette[128];
uint32_t* temporaryBuffer;