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(svn r6302) -Codechange: Remove dead code paths, because the lowest bit of Sprite::info is never unset

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tron 2006-09-02 07:13:21 +00:00
parent dcc25abeec
commit 2890ed33b8
1 changed files with 83 additions and 105 deletions
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188
gfx.c
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@ -663,7 +663,6 @@ typedef struct BlitterParams {
int width_org; int width_org;
int height_org; int height_org;
int pitch; int pitch;
byte info;
} BlitterParams; } BlitterParams;
static void GfxBlitTileZoomIn(BlitterParams *bp) static void GfxBlitTileZoomIn(BlitterParams *bp)
@ -813,66 +812,56 @@ static void GfxBlitZoomInUncomp(BlitterParams *bp)
assert(width > 0); assert(width > 0);
switch (bp->mode) { switch (bp->mode) {
case 1: case 1: {
if (bp->info & 1) { const byte *ctab = _color_remap_ptr;
const byte *ctab = _color_remap_ptr;
do { do {
for (i = 0; i != width; i++) { for (i = 0; i != width; i++) {
byte b = ctab[src[i]]; byte b = ctab[src[i]];
if (b != 0) dst[i] = b; if (b != 0) dst[i] = b;
} }
src += bp->width_org; src += bp->width_org;
dst += bp->pitch; dst += bp->pitch;
} while (--height != 0); } while (--height != 0);
}
break; break;
}
case 2: case 2: {
if (bp->info & 1) { const byte *ctab = _color_remap_ptr;
const byte *ctab = _color_remap_ptr;
do { do {
for (i = 0; i != width; i++) for (i = 0; i != width; i++)
if (src[i] != 0) dst[i] = ctab[dst[i]]; if (src[i] != 0) dst[i] = ctab[dst[i]];
src += bp->width_org; src += bp->width_org;
dst += bp->pitch; dst += bp->pitch;
} while (--height != 0); } while (--height != 0);
}
break; break;
}
default: default:
if (!(bp->info & 1)) { do {
do { int n = width;
memcpy(dst, src, width);
src += bp->width_org;
dst += bp->pitch;
} while (--height != 0);
} else {
do {
int n = width;
for (; n >= 4; n -= 4) { for (; n >= 4; n -= 4) {
if (src[0] != 0) dst[0] = src[0]; if (src[0] != 0) dst[0] = src[0];
if (src[1] != 0) dst[1] = src[1]; if (src[1] != 0) dst[1] = src[1];
if (src[2] != 0) dst[2] = src[2]; if (src[2] != 0) dst[2] = src[2];
if (src[3] != 0) dst[3] = src[3]; if (src[3] != 0) dst[3] = src[3];
dst += 4; dst += 4;
src += 4; src += 4;
} }
for (; n != 0; n--) { for (; n != 0; n--) {
if (src[0] != 0) dst[0] = src[0]; if (src[0] != 0) dst[0] = src[0];
src++; src++;
dst++; dst++;
} }
src += bp->width_org - width; src += bp->width_org - width;
dst += bp->pitch - width; dst += bp->pitch - width;
} while (--height != 0); } while (--height != 0);
}
break; break;
} }
} }
@ -1050,43 +1039,39 @@ static void GfxBlitZoomMediumUncomp(BlitterParams *bp)
assert(width > 0); assert(width > 0);
switch (bp->mode) { switch (bp->mode) {
case 1: case 1: {
if (bp->info & 1) { const byte *ctab = _color_remap_ptr;
const byte *ctab = _color_remap_ptr;
for (height >>= 1; height != 0; height--) { for (height >>= 1; height != 0; height--) {
for (i = 0; i != width >> 1; i++) { for (i = 0; i != width >> 1; i++) {
byte b = ctab[src[i * 2]]; byte b = ctab[src[i * 2]];
if (b != 0) dst[i] = b; if (b != 0) dst[i] = b;
}
src += bp->width_org * 2;
dst += bp->pitch;
} }
src += bp->width_org * 2;
dst += bp->pitch;
} }
break; break;
}
case 2: case 2: {
if (bp->info & 1) { const byte *ctab = _color_remap_ptr;
const byte *ctab = _color_remap_ptr;
for (height >>= 1; height != 0; height--) { for (height >>= 1; height != 0; height--) {
for (i = 0; i != width >> 1; i++) for (i = 0; i != width >> 1; i++)
if (src[i * 2] != 0) dst[i] = ctab[dst[i]]; if (src[i * 2] != 0) dst[i] = ctab[dst[i]];
src += bp->width_org * 2; src += bp->width_org * 2;
dst += bp->pitch; dst += bp->pitch;
}
} }
break; break;
}
default: default:
if (bp->info & 1) { for (height >>= 1; height != 0; height--) {
for (height >>= 1; height != 0; height--) { for (i = 0; i != width >> 1; i++)
for (i = 0; i != width >> 1; i++) if (src[i * 2] != 0) dst[i] = src[i * 2];
if (src[i * 2] != 0) dst[i] = src[i * 2]; src += bp->width_org * 2;
src += bp->width_org * 2; dst += bp->pitch;
dst += bp->pitch;
}
} }
break; break;
} }
@ -1324,43 +1309,39 @@ static void GfxBlitZoomOutUncomp(BlitterParams *bp)
assert(width > 0); assert(width > 0);
switch (bp->mode) { switch (bp->mode) {
case 1: case 1: {
if (bp->info & 1) { const byte *ctab = _color_remap_ptr;
const byte *ctab = _color_remap_ptr;
for (height >>= 2; height != 0; height--) { for (height >>= 2; height != 0; height--) {
for (i = 0; i != width >> 2; i++) { for (i = 0; i != width >> 2; i++) {
byte b = ctab[src[i * 4]]; byte b = ctab[src[i * 4]];
if (b != 0) dst[i] = b; if (b != 0) dst[i] = b;
}
src += bp->width_org * 4;
dst += bp->pitch;
} }
src += bp->width_org * 4;
dst += bp->pitch;
} }
break; break;
}
case 2: case 2: {
if (bp->info & 1) { const byte *ctab = _color_remap_ptr;
const byte *ctab = _color_remap_ptr;
for (height >>= 2; height != 0; height--) { for (height >>= 2; height != 0; height--) {
for (i = 0; i != width >> 2; i++) for (i = 0; i != width >> 2; i++)
if (src[i * 4] != 0) dst[i] = ctab[dst[i]]; if (src[i * 4] != 0) dst[i] = ctab[dst[i]];
src += bp->width_org * 4; src += bp->width_org * 4;
dst += bp->pitch; dst += bp->pitch;
}
} }
break; break;
}
default: default:
if (bp->info & 1) { for (height >>= 2; height != 0; height--) {
for (height >>= 2; height != 0; height--) { for (i = 0; i != width >> 2; i++)
for (i = 0; i != width >> 2; i++) if (src[i * 4] != 0) dst[i] = src[i * 4];
if (src[i * 4] != 0) dst[i] = src[i * 4]; src += bp->width_org * 4;
src += bp->width_org * 4; dst += bp->pitch;
dst += bp->pitch;
}
} }
break; break;
} }
@ -1371,7 +1352,6 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, int mode)
{ {
const DrawPixelInfo *dpi = _cur_dpi; const DrawPixelInfo *dpi = _cur_dpi;
int start_x, start_y; int start_x, start_y;
byte info;
BlitterParams bp; BlitterParams bp;
int zoom_mask = ~((1 << dpi->zoom) - 1); int zoom_mask = ~((1 << dpi->zoom) - 1);
@ -1380,8 +1360,6 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, int mode)
y += sprite->y_offs; y += sprite->y_offs;
bp.width_org = bp.width = sprite->width; bp.width_org = bp.width = sprite->width;
bp.height_org = bp.height = sprite->height; bp.height_org = bp.height = sprite->height;
info = sprite->info;
bp.info = info;
bp.sprite_org = bp.sprite = sprite->data; bp.sprite_org = bp.sprite = sprite->data;
bp.dst = dpi->dst_ptr; bp.dst = dpi->dst_ptr;
bp.mode = mode; bp.mode = mode;
@ -1390,7 +1368,7 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, int mode)
assert(bp.height > 0); assert(bp.height > 0);
assert(bp.width > 0); assert(bp.width > 0);
if (info & 8) { if (sprite->info & 8) {
/* tile blit */ /* tile blit */
start_y = 0; start_y = 0;