dave/openttd
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

(svn r9884) -Feature: 2 new zoom-out levels: 8 times and 16 times

Browse Source 
-Codechange: unified the blitter function so we have 1 function for all zoom-levels
-Codechange: make most of the label functions work with zoom-level instead of magic numbers and big switches per zoom-level
-Codechange: MakeXXXDirty() functions didn't take into account zoom-level, but just used the biggest possible value
-Codechange: simplified blitter functions to avoid code duplication
This commit is contained in:
truelight
2007-05-19 22:48:04 +00:00
parent 6670d1c018
commit d2c750b2c9
6 changed files with 197 additions and 676 deletions
Download Patch File Download Diff File Expand all files Collapse all files

730
src/gfx.cpp
View File

@@ -738,142 +738,7 @@ struct BlitterParams {
int pitch;
};
static void GfxBlitTileZoomIn(BlitterParams *bp)
{
const byte *src_o = bp->sprite;
const byte *src;
int num, skip;
byte done;
Pixel *dst;
const byte *ctab;
src_o += ReadLE16Aligned(src_o + bp->start_y * 2);
switch (bp->mode) {
case BM_COLOUR_REMAP:
do {
do {
done = src_o[0];
num = done & 0x7F;
skip = src_o[1];
src = src_o + 2;
src_o += num + 2;
dst = bp->dst;
if ( (skip -= bp->start_x) > 0) {
dst += skip;
} else {
src -= skip;
num += skip;
if (num <= 0) continue;
skip = 0;
}
skip = skip + num - bp->width;
if (skip > 0) {
num -= skip;
if (num <= 0) continue;
}
ctab = _color_remap_ptr;
for (; num >= 4; num -=4) {
dst[3] = ctab[src[3]];
dst[2] = ctab[src[2]];
dst[1] = ctab[src[1]];
dst[0] = ctab[src[0]];
dst += 4;
src += 4;
}
for (; num != 0; num--) *dst++ = ctab[*src++];
} while (!(done & 0x80));
bp->dst += bp->pitch;
} while (--bp->height != 0);
break;
case BM_TRANSPARENT:
do {
do {
done = src_o[0];
num = done & 0x7F;
skip = src_o[1];
src_o += num + 2;
dst = bp->dst;
if ( (skip -= bp->start_x) > 0) {
dst += skip;
} else {
num += skip;
if (num <= 0) continue;
skip = 0;
}
skip = skip + num - bp->width;
if (skip > 0) {
num -= skip;
if (num <= 0) continue;
}
ctab = _color_remap_ptr;
for (; num != 0; num--) {
*dst = ctab[*dst];
dst++;
}
} while (!(done & 0x80));
bp->dst += bp->pitch;
} while (--bp->height != 0);
break;
default:
do {
do {
done = src_o[0];
num = done & 0x7F;
skip = src_o[1];
src = src_o + 2;
src_o += num + 2;
dst = bp->dst;
if ( (skip -= bp->start_x) > 0) {
dst += skip;
} else {
src -= skip;
num += skip;
if (num <= 0) continue;
skip = 0;
}
skip = skip + num - bp->width;
if (skip > 0) {
num -= skip;
if (num <= 0) continue;
}
#if defined(_WIN32)
if (num & 1) *dst++ = *src++;
if (num & 2) { *(uint16*)dst = *(uint16*)src; dst += 2; src += 2; }
if (num >>= 2) {
do {
*(uint32*)dst = *(uint32*)src;
dst += 4;
src += 4;
} while (--num != 0);
}
#else
memcpy(dst, src, num);
#endif
} while (!(done & 0x80));
bp->dst += bp->pitch;
} while (--bp->height != 0);
break;
}
}
static void GfxBlitZoomInUncomp(BlitterParams *bp)
static void GfxBlitZoomUncomp(BlitterParams *bp, ZoomLevel zoom)
{
const byte *src = bp->sprite;
Pixel *dst = bp->dst;
@@ -884,62 +749,48 @@ static void GfxBlitZoomInUncomp(BlitterParams *bp)
assert(height > 0);
assert(width > 0);
height = UnScaleByZoom(height, zoom);
switch (bp->mode) {
case BM_COLOUR_REMAP: {
const byte *ctab = _color_remap_ptr;
do {
for (i = 0; i != width; i++) {
byte b = ctab[src[i]];
for (; height != 0; height--) {
for (i = 0; i != UnScaleByZoom(width, zoom); i++) {
byte b = ctab[src[ScaleByZoom(i, zoom)]];
if (b != 0) dst[i] = b;
}
src += bp->width_org;
src += ScaleByZoom(bp->width_org, zoom);
dst += bp->pitch;
} while (--height != 0);
}
break;
}
case BM_TRANSPARENT: {
const byte *ctab = _color_remap_ptr;
do {
for (i = 0; i != width; i++)
if (src[i] != 0) dst[i] = ctab[dst[i]];
src += bp->width_org;
for (; height != 0; height--) {
for (i = 0; i != UnScaleByZoom(width, zoom); i++)
if (src[ScaleByZoom(i, zoom)] != 0) dst[i] = ctab[dst[i]];
src += ScaleByZoom(bp->width_org, zoom);
dst += bp->pitch;
} while (--height != 0);
}
break;
}
default:
do {
int n = width;
for (; n >= 4; n -= 4) {
if (src[0] != 0) dst[0] = src[0];
if (src[1] != 0) dst[1] = src[1];
if (src[2] != 0) dst[2] = src[2];
if (src[3] != 0) dst[3] = src[3];
dst += 4;
src += 4;
}
for (; n != 0; n--) {
if (src[0] != 0) dst[0] = src[0];
src++;
dst++;
}
src += bp->width_org - width;
dst += bp->pitch - width;
} while (--height != 0);
for (; height != 0; height--) {
for (i = 0; i != UnScaleByZoom(width, zoom); i++)
if (src[ScaleByZoom(i, zoom)] != 0) dst[i] = src[ScaleByZoom(i, zoom)];
src += ScaleByZoom(bp->width_org, zoom);
dst += bp->pitch;
}
break;
}
}
static void GfxBlitTileZoomMedium(BlitterParams *bp)
static void GfxBlitTileZoom(BlitterParams *bp, ZoomLevel zoom)
{
const byte *src_o = bp->sprite;
const byte *src;
@@ -949,478 +800,105 @@ static void GfxBlitTileZoomMedium(BlitterParams *bp)
const byte *ctab;
src_o += ReadLE16Aligned(src_o + bp->start_y * 2);
switch (bp->mode) {
case BM_COLOUR_REMAP:
do {
do {
done = src_o[0];
num = done & 0x7F;
skip = src_o[1];
src = src_o + 2;
src_o += num + 2;
dst = bp->dst;
for (;;) {
do {
done = src_o[0];
num = done & 0x7F;
skip = src_o[1];
src = src_o + 2;
src_o += num + 2;
if (skip & 1) {
skip++;
src++;
if (--num == 0) continue;
}
dst = bp->dst;
if ( (skip -= bp->start_x) > 0) {
dst += skip >> 1;
} else {
src -= skip;
num += skip;
if (num <= 0) continue;
skip = 0;
}
if (zoom >= ZOOM_LVL_OUT_2X && (skip & 1)) {
skip += 1;
src += 1;
num -= 1;
if (num <= 0) continue;
}
skip = skip + num - bp->width;
if (skip > 0) {
num -= skip;
if (num <= 0) continue;
}
if (zoom >= ZOOM_LVL_OUT_4X && (skip & 2)) {
skip += 2;
src += 2;
num -= 2;
if (num <= 0) continue;
}
if (zoom >= ZOOM_LVL_OUT_8X && (skip & 4)) {
skip += 4;
src += 4;
num -= 4;
if (num <= 0) continue;
}
if (zoom >= ZOOM_LVL_OUT_16X && (skip & 8)) {
skip += 8;
src += 8;
num -= 8;
if (num <= 0) continue;
}
if ( (skip -= bp->start_x) > 0) {
dst += UnScaleByZoom(skip, zoom);
} else {
src -= skip;
num += skip;
if (num <= 0) continue;
skip = 0;
}
skip = skip + num - bp->width;
if (skip > 0) {
num -= skip;
if (num <= 0) continue;
}
num = UnScaleByZoom(num + ScaleByZoom(1, zoom) - 1, zoom);
switch (bp->mode) {
case BM_COLOUR_REMAP:
ctab = _color_remap_ptr;
num = (num + 1) >> 1;
for (; num != 0; num--) {
*dst = ctab[*src];
dst++;
src += 2;
}
} while (!(done & 0x80));
bp->dst += bp->pitch;
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
} while (--bp->height != 0);
break;
case BM_TRANSPARENT:
do {
do {
done = src_o[0];
num = done & 0x7F;
skip = src_o[1];
src_o += num + 2;
dst = bp->dst;
if (skip & 1) {
skip++;
if (--num == 0) continue;
}
if ( (skip -= bp->start_x) > 0) {
dst += skip >> 1;
} else {
num += skip;
if (num <= 0) continue;
skip = 0;
}
skip = skip + num - bp->width;
if (skip > 0) {
num -= skip;
if (num <= 0) continue;
src += ScaleByZoom(1, zoom);
}
break;
case BM_TRANSPARENT:
ctab = _color_remap_ptr;
num = (num + 1) >> 1;
for (; num != 0; num--) {
*dst = ctab[*dst];
dst++;
}
} while (!(done & 0x80));
bp->dst += bp->pitch;
if (--bp->height == 0) return;
break;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
} while (--bp->height != 0);
break;
default:
for (; num != 0; num--) {
*dst = *src;
dst++;
src += ScaleByZoom(1, zoom);
}
break;
}
default:
} while (!(done & 0x80));
bp->dst += bp->pitch;
if (--bp->height == 0) return;
for (int i = 0; i < ScaleByZoom(1, zoom) - 1; i++) {
do {
do {
done = src_o[0];
num = done & 0x7F;
skip = src_o[1];
src = src_o + 2;
src_o += num + 2;
dst = bp->dst;
if (skip & 1) {
skip++;
src++;
if (--num == 0) continue;
}
if ( (skip -= bp->start_x) > 0) {
dst += skip >> 1;
} else {
src -= skip;
num += skip;
if (num <= 0) continue;
skip = 0;
}
skip = skip + num - bp->width;
if (skip > 0) {
num -= skip;
if (num <= 0) continue;
}
num = (num + 1) >> 1;
for (; num != 0; num--) {
*dst = *src;
dst++;
src += 2;
}
} while (!(done & 0x80));
bp->dst += bp->pitch;
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
} while (--bp->height != 0);
break;
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
if (--bp->height == 0) return;
}
}
}
static void GfxBlitZoomMediumUncomp(BlitterParams *bp)
{
const byte *src = bp->sprite;
Pixel *dst = bp->dst;
int height = bp->height;
int width = bp->width;
int i;
assert(height > 0);
assert(width > 0);
switch (bp->mode) {
case BM_COLOUR_REMAP: {
const byte *ctab = _color_remap_ptr;
for (height >>= 1; height != 0; height--) {
for (i = 0; i != width >> 1; i++) {
byte b = ctab[src[i * 2]];
if (b != 0) dst[i] = b;
}
src += bp->width_org * 2;
dst += bp->pitch;
}
break;
}
case BM_TRANSPARENT: {
const byte *ctab = _color_remap_ptr;
for (height >>= 1; height != 0; height--) {
for (i = 0; i != width >> 1; i++)
if (src[i * 2] != 0) dst[i] = ctab[dst[i]];
src += bp->width_org * 2;
dst += bp->pitch;
}
break;
}
default:
for (height >>= 1; height != 0; height--) {
for (i = 0; i != width >> 1; i++)
if (src[i * 2] != 0) dst[i] = src[i * 2];
src += bp->width_org * 2;
dst += bp->pitch;
}
break;
}
}
static void GfxBlitTileZoomOut(BlitterParams *bp)
{
const byte *src_o = bp->sprite;
const byte *src;
int num, skip;
byte done;
Pixel *dst;
const byte *ctab;
src_o += ReadLE16Aligned(src_o + bp->start_y * 2);
switch (bp->mode) {
case BM_COLOUR_REMAP:
for (;;) {
do {
done = src_o[0];
num = done & 0x7F;
skip = src_o[1];
src = src_o + 2;
src_o += num + 2;
dst = bp->dst;
if (skip & 1) {
skip++;
src++;
if (--num == 0) continue;
}
if (skip & 2) {
skip += 2;
src += 2;
num -= 2;
if (num <= 0) continue;
}
if ( (skip -= bp->start_x) > 0) {
dst += skip >> 2;
} else {
src -= skip;
num += skip;
if (num <= 0) continue;
skip = 0;
}
skip = skip + num - bp->width;
if (skip > 0) {
num -= skip;
if (num <= 0) continue;
}
ctab = _color_remap_ptr;
num = (num + 3) >> 2;
for (; num != 0; num--) {
*dst = ctab[*src];
dst++;
src += 4;
}
} while (!(done & 0x80));
bp->dst += bp->pitch;
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
if (--bp->height == 0) return;
}
break;
case BM_TRANSPARENT:
for (;;) {
do {
done = src_o[0];
num = done & 0x7F;
skip = src_o[1];
src_o += num + 2;
dst = bp->dst;
if (skip & 1) {
skip++;
if (--num == 0) continue;
}
if (skip & 2) {
skip += 2;
num -= 2;
if (num <= 0) continue;
}
if ( (skip -= bp->start_x) > 0) {
dst += skip >> 2;
} else {
num += skip;
if (num <= 0) continue;
skip = 0;
}
skip = skip + num - bp->width;
if (skip > 0) {
num -= skip;
if (num <= 0) continue;
}
ctab = _color_remap_ptr;
num = (num + 3) >> 2;
for (; num != 0; num--) {
*dst = ctab[*dst];
dst++;
}
} while (!(done & 0x80));
bp->dst += bp->pitch;
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
if (--bp->height == 0) return;
}
break;
default:
for (;;) {
do {
done = src_o[0];
num = done & 0x7F;
skip = src_o[1];
src = src_o + 2;
src_o += num + 2;
dst = bp->dst;
if (skip & 1) {
skip++;
src++;
if (--num == 0) continue;
}
if (skip & 2) {
skip += 2;
src += 2;
num -= 2;
if (num <= 0) continue;
}
if ( (skip -= bp->start_x) > 0) {
dst += skip >> 2;
} else {
src -= skip;
num += skip;
if (num <= 0) continue;
skip = 0;
}
skip = skip + num - bp->width;
if (skip > 0) {
num -= skip;
if (num <= 0) continue;
}
num = (num + 3) >> 2;
for (; num != 0; num--) {
*dst = *src;
dst++;
src += 4;
}
} while (!(done & 0x80));
bp->dst += bp->pitch;
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
if (--bp->height == 0) return;
do {
done = src_o[0];
src_o += (done & 0x7F) + 2;
} while (!(done & 0x80));
if (--bp->height == 0) return;
}
break;
}
}
static void GfxBlitZoomOutUncomp(BlitterParams *bp)
{
const byte *src = bp->sprite;
Pixel *dst = bp->dst;
int height = bp->height;
int width = bp->width;
int i;
assert(height > 0);
assert(width > 0);
switch (bp->mode) {
case BM_COLOUR_REMAP: {
const byte *ctab = _color_remap_ptr;
for (height >>= 2; height != 0; height--) {
for (i = 0; i != width >> 2; i++) {
byte b = ctab[src[i * 4]];
if (b != 0) dst[i] = b;
}
src += bp->width_org * 4;
dst += bp->pitch;
}
break;
}
case BM_TRANSPARENT: {
const byte *ctab = _color_remap_ptr;
for (height >>= 2; height != 0; height--) {
for (i = 0; i != width >> 2; i++)
if (src[i * 4] != 0) dst[i] = ctab[dst[i]];
src += bp->width_org * 4;
dst += bp->pitch;
}
break;
}
default:
for (height >>= 2; height != 0; height--) {
for (i = 0; i != width >> 2; i++)
if (src[i * 4] != 0) dst[i] = src[i * 4];
src += bp->width_org * 4;
dst += bp->pitch;
}
break;
}
}
static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode)
{
const DrawPixelInfo *dpi = _cur_dpi;
@@ -1483,12 +961,7 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode)
if (bp.width <= 0) return;
}
switch (dpi->zoom) {
default: NOT_REACHED();
case ZOOM_LVL_NORMAL: GfxBlitTileZoomIn(&bp); break;
case ZOOM_LVL_OUT_2X: GfxBlitTileZoomMedium(&bp); break;
case ZOOM_LVL_OUT_4X: GfxBlitTileZoomOut(&bp); break;
}
GfxBlitTileZoom(&bp, dpi->zoom);
} else {
bp.sprite += bp.width * (bp.height & ~zoom_mask);
bp.height &= zoom_mask;
@@ -1525,12 +998,7 @@ static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode)
if (bp.width <= 0) return;
}
switch (dpi->zoom) {
default: NOT_REACHED();
case ZOOM_LVL_NORMAL: GfxBlitZoomInUncomp(&bp); break;
case ZOOM_LVL_OUT_2X: GfxBlitZoomMediumUncomp(&bp); break;
case ZOOM_LVL_OUT_4X: GfxBlitZoomOutUncomp(&bp); break;
}
GfxBlitZoomUncomp(&bp, dpi->zoom);
}
}