mirror of
https://github.com/JGRennison/OpenTTD-patches.git
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(svn r6302) -Codechange: Remove dead code paths, because the lowest bit of Sprite::info is never unset
This commit is contained in:
tron
parent
dcc25abeec
commit
2890ed33b8
188
gfx.c
188
gfx.c
@ -663,7 +663,6 @@ typedef struct BlitterParams {
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int width_org;
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int height_org;
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int pitch;
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byte info;
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} BlitterParams;
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static void GfxBlitTileZoomIn(BlitterParams *bp)
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@ -813,66 +812,56 @@ static void GfxBlitZoomInUncomp(BlitterParams *bp)
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assert(width > 0);
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switch (bp->mode) {
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case 1:
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if (bp->info & 1) {
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const byte *ctab = _color_remap_ptr;
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case 1: {
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const byte *ctab = _color_remap_ptr;
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do {
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for (i = 0; i != width; i++) {
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byte b = ctab[src[i]];
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do {
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for (i = 0; i != width; i++) {
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byte b = ctab[src[i]];
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if (b != 0) dst[i] = b;
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}
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src += bp->width_org;
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dst += bp->pitch;
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} while (--height != 0);
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}
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if (b != 0) dst[i] = b;
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}
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src += bp->width_org;
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dst += bp->pitch;
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} while (--height != 0);
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break;
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}
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case 2:
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if (bp->info & 1) {
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const byte *ctab = _color_remap_ptr;
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case 2: {
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const byte *ctab = _color_remap_ptr;
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do {
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for (i = 0; i != width; i++)
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if (src[i] != 0) dst[i] = ctab[dst[i]];
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src += bp->width_org;
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dst += bp->pitch;
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} while (--height != 0);
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}
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do {
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for (i = 0; i != width; i++)
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if (src[i] != 0) dst[i] = ctab[dst[i]];
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src += bp->width_org;
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dst += bp->pitch;
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} while (--height != 0);
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break;
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}
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default:
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if (!(bp->info & 1)) {
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do {
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memcpy(dst, src, width);
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src += bp->width_org;
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dst += bp->pitch;
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} while (--height != 0);
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} else {
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do {
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int n = width;
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do {
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int n = width;
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for (; n >= 4; n -= 4) {
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if (src[0] != 0) dst[0] = src[0];
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if (src[1] != 0) dst[1] = src[1];
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if (src[2] != 0) dst[2] = src[2];
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if (src[3] != 0) dst[3] = src[3];
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for (; n >= 4; n -= 4) {
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if (src[0] != 0) dst[0] = src[0];
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if (src[1] != 0) dst[1] = src[1];
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if (src[2] != 0) dst[2] = src[2];
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if (src[3] != 0) dst[3] = src[3];
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dst += 4;
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src += 4;
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}
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dst += 4;
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src += 4;
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}
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for (; n != 0; n--) {
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if (src[0] != 0) dst[0] = src[0];
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src++;
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dst++;
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}
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for (; n != 0; n--) {
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if (src[0] != 0) dst[0] = src[0];
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src++;
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dst++;
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}
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src += bp->width_org - width;
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dst += bp->pitch - width;
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} while (--height != 0);
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}
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src += bp->width_org - width;
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dst += bp->pitch - width;
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} while (--height != 0);
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break;
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}
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}
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@ -1050,43 +1039,39 @@ static void GfxBlitZoomMediumUncomp(BlitterParams *bp)
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assert(width > 0);
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switch (bp->mode) {
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case 1:
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if (bp->info & 1) {
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const byte *ctab = _color_remap_ptr;
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case 1: {
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const byte *ctab = _color_remap_ptr;
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for (height >>= 1; height != 0; height--) {
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for (i = 0; i != width >> 1; i++) {
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byte b = ctab[src[i * 2]];
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for (height >>= 1; height != 0; height--) {
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for (i = 0; i != width >> 1; i++) {
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byte b = ctab[src[i * 2]];
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if (b != 0) dst[i] = b;
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}
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src += bp->width_org * 2;
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dst += bp->pitch;
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if (b != 0) dst[i] = b;
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}
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src += bp->width_org * 2;
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dst += bp->pitch;
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}
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break;
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}
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case 2:
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if (bp->info & 1) {
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const byte *ctab = _color_remap_ptr;
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case 2: {
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const byte *ctab = _color_remap_ptr;
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for (height >>= 1; height != 0; height--) {
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for (i = 0; i != width >> 1; i++)
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if (src[i * 2] != 0) dst[i] = ctab[dst[i]];
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src += bp->width_org * 2;
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dst += bp->pitch;
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}
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for (height >>= 1; height != 0; height--) {
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for (i = 0; i != width >> 1; i++)
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if (src[i * 2] != 0) dst[i] = ctab[dst[i]];
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src += bp->width_org * 2;
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dst += bp->pitch;
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}
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break;
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}
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default:
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if (bp->info & 1) {
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for (height >>= 1; height != 0; height--) {
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for (i = 0; i != width >> 1; i++)
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if (src[i * 2] != 0) dst[i] = src[i * 2];
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src += bp->width_org * 2;
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dst += bp->pitch;
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}
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for (height >>= 1; height != 0; height--) {
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for (i = 0; i != width >> 1; i++)
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if (src[i * 2] != 0) dst[i] = src[i * 2];
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src += bp->width_org * 2;
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dst += bp->pitch;
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}
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break;
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}
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@ -1324,43 +1309,39 @@ static void GfxBlitZoomOutUncomp(BlitterParams *bp)
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assert(width > 0);
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switch (bp->mode) {
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case 1:
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if (bp->info & 1) {
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const byte *ctab = _color_remap_ptr;
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case 1: {
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const byte *ctab = _color_remap_ptr;
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for (height >>= 2; height != 0; height--) {
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for (i = 0; i != width >> 2; i++) {
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byte b = ctab[src[i * 4]];
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for (height >>= 2; height != 0; height--) {
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for (i = 0; i != width >> 2; i++) {
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byte b = ctab[src[i * 4]];
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if (b != 0) dst[i] = b;
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}
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src += bp->width_org * 4;
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dst += bp->pitch;
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if (b != 0) dst[i] = b;
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}
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src += bp->width_org * 4;
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dst += bp->pitch;
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}
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break;
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}
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case 2:
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if (bp->info & 1) {
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const byte *ctab = _color_remap_ptr;
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case 2: {
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const byte *ctab = _color_remap_ptr;
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for (height >>= 2; height != 0; height--) {
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for (i = 0; i != width >> 2; i++)
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if (src[i * 4] != 0) dst[i] = ctab[dst[i]];
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src += bp->width_org * 4;
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dst += bp->pitch;
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}
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for (height >>= 2; height != 0; height--) {
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for (i = 0; i != width >> 2; i++)
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if (src[i * 4] != 0) dst[i] = ctab[dst[i]];
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src += bp->width_org * 4;
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dst += bp->pitch;
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}
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break;
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}
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default:
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if (bp->info & 1) {
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for (height >>= 2; height != 0; height--) {
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for (i = 0; i != width >> 2; i++)
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if (src[i * 4] != 0) dst[i] = src[i * 4];
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src += bp->width_org * 4;
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dst += bp->pitch;
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}
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for (height >>= 2; height != 0; height--) {
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for (i = 0; i != width >> 2; i++)
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if (src[i * 4] != 0) dst[i] = src[i * 4];
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src += bp->width_org * 4;
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dst += bp->pitch;
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}
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break;
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}
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@ -1371,7 +1352,6 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, int mode)
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{
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const DrawPixelInfo *dpi = _cur_dpi;
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int start_x, start_y;
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byte info;
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BlitterParams bp;
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int zoom_mask = ~((1 << dpi->zoom) - 1);
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@ -1380,8 +1360,6 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, int mode)
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y += sprite->y_offs;
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bp.width_org = bp.width = sprite->width;
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bp.height_org = bp.height = sprite->height;
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info = sprite->info;
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bp.info = info;
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bp.sprite_org = bp.sprite = sprite->data;
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bp.dst = dpi->dst_ptr;
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bp.mode = mode;
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@ -1390,7 +1368,7 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, int mode)
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assert(bp.height > 0);
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assert(bp.width > 0);
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if (info & 8) {
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if (sprite->info & 8) {
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/* tile blit */
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start_y = 0;
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