cpp/openttd-patchpack/source Changeset - r6804:418e2c5cd7f4

Changeset - r6804:418e2c5cd7f4

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truelight - 17 years ago 2007-06-05 12:01:50
truelight@openttd.org

(svn r10043) -Change: make templates of the blitters, based on zoom and mode, which makes the optimizing better, and therefor a higher blitter speed (tnx boekabart)
-Codechange: unify the MainBlitter a bit more

1 file changed with 89 insertions and 106 deletions:

src/gfx.cpp

106

0 comments (0 inline, 0 general)

src/gfx.cpp

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@@ @@ -51,7 +51,8 @@ enum BlitterMode { @@
 	BM_TRANSPARENT,
 };
 static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode);
 template <BlitterMode Tmode>
 static inline void GfxMainBlitter(const Sprite *sprite, int x, int y);
 FontSize _cur_fontsize;
 static FontSize _last_fontsize;
@@ @@ -682,7 +683,7 @@ skip_cont:; @@
 		if (IsPrintable(c)) {
 			if (x >= dpi->left + dpi->width) goto skip_char;
 			if (x + 26 >= dpi->left) {
-				GfxMainBlitter(GetGlyph(size, c), x, y, BM_COLOUR_REMAP);
+				GfxMainBlitter<BM_COLOUR_REMAP>(GetGlyph(size, c), x, y);
+			}
 			x += GetCharacterWidth(size, c);
 		} else if (c == '\n') { // newline = {}
@@ @@ -719,12 +720,12 @@ void DrawSprite(SpriteID img, SpriteID p @@
+{
 	if (HASBIT(img, PALETTE_MODIFIER_TRANSPARENT)) {
 		_color_remap_ptr = GetNonSprite(GB(pal, 0, PALETTE_WIDTH)) + 1;
-		GfxMainBlitter(GetSprite(GB(img, 0, SPRITE_WIDTH)), x, y, BM_TRANSPARENT);
+		GfxMainBlitter<BM_TRANSPARENT>(GetSprite(GB(img, 0, SPRITE_WIDTH)), x, y);
 	} else if (pal != PAL_NONE) {
 		_color_remap_ptr = GetNonSprite(GB(pal, 0, PALETTE_WIDTH)) + 1;
-		GfxMainBlitter(GetSprite(GB(img, 0, SPRITE_WIDTH)), x, y, BM_COLOUR_REMAP);
+		GfxMainBlitter<BM_COLOUR_REMAP>(GetSprite(GB(img, 0, SPRITE_WIDTH)), x, y);
 	} else {
-		GfxMainBlitter(GetSprite(GB(img, 0, SPRITE_WIDTH)), x, y, BM_NORMAL);
+		GfxMainBlitter<BM_NORMAL>(GetSprite(GB(img, 0, SPRITE_WIDTH)), x, y);
+	}
+}
@@ @@ -732,15 +733,15 @@ struct BlitterParams { @@
 	int start_x, start_y;
 	const byte *sprite;
 	Pixel *dst;
 	BlitterMode mode;
 	int width, height;
 	int width_org;
 	int pitch;
 };
 static void GfxBlitZoomUncomp(BlitterParams *bp, ZoomLevel zoom)
 template <BlitterMode Tmode, ZoomLevel Tzoom>
 static inline void GfxBlitZoomUncomp(BlitterParams *bp)
+{
 	const byte *src = bp->sprite;
+	const byte *src = bp->sprite + bp->start_y * bp->width_org + bp->start_x;
 	Pixel *dst = bp->dst;
 	int height = bp->height;
 	int width = bp->width;
@@ @@ -749,19 +750,19 @@ static void GfxBlitZoomUncomp(BlitterPar @@
 	assert(height > 0);
 	assert(width > 0);
-	height = UnScaleByZoom(height, zoom);
+	height = UnScaleByZoom(height, Tzoom);
-	switch (bp->mode) {
+	switch (Tmode) {
 		case BM_COLOUR_REMAP: {
 			const byte *ctab = _color_remap_ptr;
 			for (; height != 0; height--) {
 				for (i = 0; i != UnScaleByZoom(width, zoom); i++) {
 					byte b = ctab[src[ScaleByZoom(i, zoom)]];
 				for (i = 0; i != UnScaleByZoom(width, Tzoom); i++) {
 					byte b = ctab[src[ScaleByZoom(i, Tzoom)]];
 					if (b != 0) dst[i] = b;
+				}
-				src += ScaleByZoom(bp->width_org, zoom);
+				src += ScaleByZoom(bp->width_org, Tzoom);
 				dst += bp->pitch;
+			}
 			break;
@@ @@ -771,9 +772,9 @@ static void GfxBlitZoomUncomp(BlitterPar @@
 			const byte *ctab = _color_remap_ptr;
 			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);
 				for (i = 0; i != UnScaleByZoom(width, Tzoom); i++)
 					if (src[ScaleByZoom(i, Tzoom)] != 0) dst[i] = ctab[dst[i]];
 				src += ScaleByZoom(bp->width_org, Tzoom);
 				dst += bp->pitch;
+			}
 			break;
@@ @@ -781,16 +782,17 @@ static void GfxBlitZoomUncomp(BlitterPar @@
 		default:
 			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);
 				for (i = 0; i != UnScaleByZoom(width, Tzoom); i++)
 					if (src[ScaleByZoom(i, Tzoom)] != 0) dst[i] = src[ScaleByZoom(i, Tzoom)];
 				src += ScaleByZoom(bp->width_org, Tzoom);
 				dst += bp->pitch;
+			}
 			break;
+	}
+}
 static void GfxBlitTileZoom(BlitterParams *bp, ZoomLevel zoom)
 template <BlitterMode Tmode, ZoomLevel Tzoom>
 static inline void GfxBlitTileZoom(BlitterParams *bp)
+{
 	const byte *src_o = bp->sprite;
 	const byte *src;
@@ @@ -811,28 +813,28 @@ static void GfxBlitTileZoom(BlitterParam @@
 			dst = bp->dst;
-			if (zoom >= ZOOM_LVL_OUT_2X && (skip & 1)) {
+			if (Tzoom >= ZOOM_LVL_OUT_2X && (skip & 1)) {
 				skip += 1;
 				src += 1;
 				num -= 1;
 				if (num <= 0) continue;
+			}
-			if (zoom >= ZOOM_LVL_OUT_4X && (skip & 2)) {
+			if (Tzoom >= ZOOM_LVL_OUT_4X && (skip & 2)) {
 				skip += 2;
 				src += 2;
 				num -= 2;
 				if (num <= 0) continue;
+			}
-			if (zoom >= ZOOM_LVL_OUT_8X && (skip & 4)) {
+			if (Tzoom >= ZOOM_LVL_OUT_8X && (skip & 4)) {
 				skip += 4;
 				src += 4;
 				num -= 4;
 				if (num <= 0) continue;
+			}
-			if (zoom >= ZOOM_LVL_OUT_16X && (skip & 8)) {
+			if (Tzoom >= ZOOM_LVL_OUT_16X && (skip & 8)) {
 				skip += 8;
 				src += 8;
 				num -= 8;
@@ @@ -840,7 +842,7 @@ static void GfxBlitTileZoom(BlitterParam @@
+			}
 			if ( (skip -= bp->start_x) > 0) {
-				dst += UnScaleByZoom(skip, zoom);
+				dst += UnScaleByZoom(skip, Tzoom);
 			} else {
 				src -= skip;
 				num += skip;
@@ @@ -854,15 +856,15 @@ static void GfxBlitTileZoom(BlitterParam @@
 				if (num <= 0) continue;
+			}
-			num = UnScaleByZoom(num + ScaleByZoom(1, zoom) - 1, zoom);
+			num = UnScaleByZoom(num + ScaleByZoom(1, Tzoom) - 1, Tzoom);
-			switch (bp->mode) {
+			switch (Tmode) {
 				case BM_COLOUR_REMAP:
 					ctab = _color_remap_ptr;
 					for (; num != 0; num--) {
 							*dst = ctab[*src];
 							dst++;
-							src += ScaleByZoom(1, zoom);
+							src += ScaleByZoom(1, Tzoom);
+					}
 					break;
@@ @@ -875,10 +877,14 @@ static void GfxBlitTileZoom(BlitterParam @@
 					break;
 				default:
 					for (; num != 0; num--) {
 							*dst = *src;
 							dst++;
 							src += ScaleByZoom(1, zoom);
 					if (Tzoom == ZOOM_LVL_NORMAL) {
 						memcpy(dst, src, num);
 					} else {
 						for (; num != 0; num--) {
 								*dst = *src;
 								dst++;
 								src += ScaleByZoom(1, Tzoom);
+						}
+					}
 					break;
+			}
@@ @@ -889,7 +895,7 @@ static void GfxBlitTileZoom(BlitterParam @@
 		bp->dst += bp->pitch;
 		if (--bp->height == 0) return;
-		for (int i = 0; i < ScaleByZoom(1, zoom) - 1; i++) {
+		for (int i = 0; i < ScaleByZoom(1, Tzoom) - 1; i++) {
 			do {
 				done = src_o[0];
 				src_o += (done & 0x7F) + 2;
@@ @@ -899,7 +905,8 @@ static void GfxBlitTileZoom(BlitterParam @@
+	}
+}
 static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode)
 template <BlitterMode Tmode>
 static inline void GfxMainBlitter(const Sprite *sprite, int x, int y)
+{
 	const DrawPixelInfo *dpi = _cur_dpi;
 	int start_x, start_y;
@@ @@ -913,92 +920,68 @@ static void GfxMainBlitter(const Sprite @@
 	bp.height = sprite->height;
 	bp.sprite = sprite->data;
 	bp.dst = dpi->dst_ptr;
 	bp.mode = mode;
 	bp.pitch = dpi->pitch;
 	assert(bp.height > 0);
 	assert(bp.width > 0);
 	if (sprite->info & 8) {
 		/* tile blit */
 		start_y = 0;
 		if (dpi->zoom > ZOOM_LVL_NORMAL) {
 			start_y += bp.height & ~zoom_mask;
 			bp.height &= zoom_mask;
 			if (bp.height == 0) return;
 			y &= zoom_mask;
+		}
 		if ( (y -= dpi->top) < 0) {
 			bp.height += y;
 			if (bp.height <= 0) return;
 			start_y -= y;
 			y = 0;
 		} else {
 			bp.dst += bp.pitch * UnScaleByZoom(y, dpi->zoom);
+		}
 		bp.start_y = start_y;
 		if ( (y = y + bp.height - dpi->height) > 0) {
 			bp.height -= y;
 			if (bp.height <= 0) return;
+		}
 		start_x = 0;
 		x &= zoom_mask;
 		if ( (x -= dpi->left) < 0) {
 			bp.width += x;
 			if (bp.width <= 0) return;
 			start_x -= x;
 			x = 0;
+		}
 		bp.start_x = start_x;
 		bp.dst += UnScaleByZoom(x, dpi->zoom);
 		if ( (x = x + bp.width - dpi->width) > 0) {
 			bp.width -= x;
 			if (bp.width <= 0) return;
+		}
 		GfxBlitTileZoom(&bp, dpi->zoom);
 	} else {
 		bp.sprite += bp.width * (bp.height & ~zoom_mask);
 	start_y = 0;
 	if (dpi->zoom > ZOOM_LVL_NORMAL) {
 		start_y += bp.height & ~zoom_mask;
 		bp.height &= zoom_mask;
 		if (bp.height == 0) return;
 		y &= zoom_mask;
+	}
 		if ( (y -= dpi->top) < 0) {
 			bp.height += y;
 			if (bp.height <= 0) return;
 			bp.sprite -= bp.width * y;
 			y = 0;
 		} else {
 			bp.dst += bp.pitch * UnScaleByZoom(y, dpi->zoom);
+		}
 	if ( (y -= dpi->top) < 0) {
 		bp.height += y;
 		if (bp.height <= 0) return;
 		start_y -= y;
 		y = 0;
 	} else {
 		bp.dst += bp.pitch * UnScaleByZoom(y, dpi->zoom);
+	}
 	bp.start_y = start_y;
 		if (bp.height > dpi->height - y) {
 			bp.height = dpi->height - y;
 			if (bp.height <= 0) return;
+		}
 	if ( (y = y + bp.height - dpi->height) > 0) {
 		bp.height -= y;
 		if (bp.height <= 0) return;
+	}
 		x &= zoom_mask;
 	start_x = 0;
 	x &= zoom_mask;
 	if ( (x -= dpi->left) < 0) {
 		bp.width += x;
 		if (bp.width <= 0) return;
 		start_x -= x;
 		x = 0;
+	}
 	bp.start_x = start_x;
 	bp.dst += UnScaleByZoom(x, dpi->zoom);
 		if ( (x -= dpi->left) < 0) {
 			bp.width += x;
 			if (bp.width <= 0) return;
 			bp.sprite -= x;
 			x = 0;
 	if ( (x = x + bp.width - dpi->width) > 0) {
 		bp.width -= x;
 		if (bp.width <= 0) return;
+	}
 	if (sprite->info & 8) {
 		switch (dpi->zoom) {
 			case ZOOM_LVL_NORMAL:  GfxBlitTileZoom<Tmode, ZOOM_LVL_NORMAL>(&bp);  break;
 			case ZOOM_LVL_OUT_2X:  GfxBlitTileZoom<Tmode, ZOOM_LVL_OUT_2X>(&bp);  break;
 			case ZOOM_LVL_OUT_4X:  GfxBlitTileZoom<Tmode, ZOOM_LVL_OUT_4X>(&bp);  break;
 			case ZOOM_LVL_OUT_8X:  GfxBlitTileZoom<Tmode, ZOOM_LVL_OUT_8X>(&bp);  break;
 			case ZOOM_LVL_OUT_16X: GfxBlitTileZoom<Tmode, ZOOM_LVL_OUT_16X>(&bp); break;
 			default: NOT_REACHED();
+		}
 		bp.dst += UnScaleByZoom(x, dpi->zoom);
 		if (bp.width > dpi->width - x) {
 			bp.width = dpi->width - x;
 			if (bp.width <= 0) return;
 	} else {
 		switch (dpi->zoom) {
 			case ZOOM_LVL_NORMAL:  GfxBlitZoomUncomp<Tmode, ZOOM_LVL_NORMAL>(&bp);  break;
 			case ZOOM_LVL_OUT_2X:  GfxBlitZoomUncomp<Tmode, ZOOM_LVL_OUT_2X>(&bp);  break;
 			case ZOOM_LVL_OUT_4X:  GfxBlitZoomUncomp<Tmode, ZOOM_LVL_OUT_4X>(&bp);  break;
 			case ZOOM_LVL_OUT_8X:  GfxBlitZoomUncomp<Tmode, ZOOM_LVL_OUT_8X>(&bp);  break;
 			case ZOOM_LVL_OUT_16X: GfxBlitZoomUncomp<Tmode, ZOOM_LVL_OUT_16X>(&bp); break;
 			default: NOT_REACHED();
+		}
 		GfxBlitZoomUncomp(&bp, dpi->zoom);
+	}
+}

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