X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/1c242c0a654a5c4048ba4219a0982f8ba8a85246..3a044bea307a02147e2d01ad29f07b7348bd7203:/lib/gdi/gpixmap.cpp?ds=sidebyside

diff --git a/lib/gdi/gpixmap.cpp b/lib/gdi/gpixmap.cpp
index 855cb8b2..3e643108 100644
--- a/lib/gdi/gpixmap.cpp
+++ b/lib/gdi/gpixmap.cpp
@@ -1,3 +1,5 @@
+#include <cstdlib>
+#include <cstring>
 #include <lib/gdi/gpixmap.h>
 #include <lib/gdi/region.h>
 #include <lib/gdi/accel.h>
@@ -96,8 +98,12 @@ gSurface::gSurface(eSize size, int _bpp, int accel)
 		stride += 63;
 		stride &=~63;
 		
+		int pal_size = 0;
+		if (bpp == 8)
+			pal_size = 256 * 4;
+		
 		if (gAccel::getInstance())
-			eDebug("accel memory: %d", gAccel::getInstance()->accelAlloc(data, data_phys, y * stride));
+			eDebug("accel memory: %d", gAccel::getInstance()->accelAlloc(data, data_phys, y * stride + pal_size));
 		else
 			eDebug("no accel available");
 	}
@@ -141,7 +147,7 @@ void gPixmap::fill(const gRegion &region, const gColor &color)
 	for (i=0; i<region.rects.size(); ++i)
 	{
 		const eRect &area = region.rects[i];
-		if ((area.height()<=0) || (area.width()<=0))
+		if (area.empty())
 			continue;
 
 		if (surface->bpp == 8)
@@ -157,8 +163,8 @@ void gPixmap::fill(const gRegion &region, const gColor &color)
 			else
 				col=0x10101*color;
 			
-			col^=0xFF000000;			
-
+			col^=0xFF000000;
+			
 			if (surface->data_phys && gAccel::getInstance())
 				if (!gAccel::getInstance()->fill(surface,  area, col))
 					continue;
@@ -181,7 +187,7 @@ void gPixmap::fill(const gRegion &region, const gRGB &color)
 	for (i=0; i<region.rects.size(); ++i)
 	{
 		const eRect &area = region.rects[i];
-		if ((area.height()<=0) || (area.width()<=0))
+		if (area.empty())
 			continue;
 
 		if (surface->bpp == 32)
@@ -207,24 +213,114 @@ void gPixmap::fill(const gRegion &region, const gRGB &color)
 	}
 }
 
-void gPixmap::blit(const gPixmap &src, ePoint pos, const gRegion &clip, int flag)
+static void blit_8i_to_32(__u32 *dst, __u8 *src, __u32 *pal, int width)
+{
+	while (width--)
+		*dst++=pal[*src++];
+}
+
+static void blit_8i_to_32_at(__u32 *dst, __u8 *src, __u32 *pal, int width)
+{
+	while (width--)
+	{
+		if (!(pal[*src]&0x80000000))
+		{
+			src++;
+			dst++;
+		} else
+			*dst++=pal[*src++];
+	}
+}
+
+		/* WARNING, this function is not endian safe! */
+static void blit_8i_to_32_ab(__u32 *dst, __u8 *src, __u32 *pal, int width)
 {
+	while (width--)
+	{
+#define BLEND(x, y, a) (y + (((x-y) * a)>>8))
+		__u32 srccol = pal[*src++];
+		__u32 dstcol = *dst;
+		unsigned char sb = srccol & 0xFF;
+		unsigned char sg = (srccol >> 8) & 0xFF;
+		unsigned char sr = (srccol >> 16) & 0xFF;
+		unsigned char sa = (srccol >> 24) & 0xFF;
+
+		unsigned char db = dstcol & 0xFF;
+		unsigned char dg = (dstcol >> 8) & 0xFF;
+		unsigned char dr = (dstcol >> 16) & 0xFF;
+		unsigned char da = (dstcol >> 24) & 0xFF;
+
+		da = BLEND(0xFF, da, sa) & 0xFF;
+		dr = BLEND(sr, dr, sa) & 0xFF;
+		dg = BLEND(sg, dg, sa) & 0xFF;
+		db = BLEND(sb, db, sa) & 0xFF;
+
+#undef BLEND
+		*dst++ = db | (dg << 8) | (dr << 16) | (da << 24);
+	}
+}
+
+#define FIX 0x10000
+
+void gPixmap::blit(const gPixmap &src, const eRect &_pos, const gRegion &clip, int flag)
+{
+//	eDebug("blit: -> %d.%d %d:%d -> %d.%d %d:%d, flags=%d",
+//		_pos.x(), _pos.y(), _pos.width(), _pos.height(),
+//		clip.extends.x(), clip.extends.y(), clip.extends.width(), clip.extends.height(),
+//		flag);
+	eRect pos = _pos;
+	
+//	eDebug("source size: %d %d", src.size().width(), src.size().height());
+	
+	if (!(flag & blitScale)) /* pos' size is valid only when scaling */
+		pos = eRect(pos.topLeft(), src.size());
+	else if (pos.size() == src.size()) /* no scaling required */
+		flag &= ~blitScale;
+
+	int scale_x = FIX, scale_y = FIX;
+	
+	if (flag & blitScale)
+	{
+		ASSERT(src.size().width());
+		ASSERT(src.size().height());
+		scale_x = pos.size().width() * FIX / src.size().width();
+		scale_y = pos.size().height() * FIX / src.size().height();
+	}
+	
+//	eDebug("SCALE %x %x", scale_x, scale_y);
+
 	for (unsigned int i=0; i<clip.rects.size(); ++i)
 	{
-		eRect area=eRect(pos, src.size());
+//		eDebug("clip rect: %d %d %d %d", clip.rects[i].x(), clip.rects[i].y(), clip.rects[i].width(), clip.rects[i].height());
+		eRect area = pos; /* pos is the virtual (pre-clipping) area on the dest, which can be larger/smaller than src if scaling is enabled */
 		area&=clip.rects[i];
 		area&=eRect(ePoint(0, 0), size());
 
-		if ((area.width()<0) || (area.height()<0))
+		if (area.empty())
 			continue;
 
-		eRect srcarea=area;
+		eRect srcarea = area;
 		srcarea.moveBy(-pos.x(), -pos.y());
 
+//		eDebug("srcarea before scale: %d %d %d %d",
+//			srcarea.x(), srcarea.y(), srcarea.width(), srcarea.height());
+		
+		if (flag & blitScale)
+			srcarea = eRect(srcarea.x() * FIX / scale_x, srcarea.y() * FIX / scale_y, srcarea.width() * FIX / scale_x, srcarea.height() * FIX / scale_y);
+
+//		eDebug("srcarea after scale: %d %d %d %d",
+//			srcarea.x(), srcarea.y(), srcarea.width(), srcarea.height());
+
 		if ((surface->data_phys && src.surface->data_phys) && (gAccel::getInstance()))
-			if (!gAccel::getInstance()->blit(surface, src.surface, area.topLeft(), srcarea, flag))
+			if (!gAccel::getInstance()->blit(surface, src.surface, area, srcarea, flag))
 				continue;
 
+		if (flag & blitScale)
+		{
+			eWarning("unimplemented: scale on non-accel surfaces");
+			continue;
+		}
+
 		if ((surface->bpp == 8) && (src.surface->bpp==8))
 		{
 			__u8 *srcptr=(__u8*)src.surface->data;
@@ -234,7 +330,7 @@ void gPixmap::blit(const gPixmap &src, ePoint pos, const gRegion &clip, int flag
 			dstptr+=area.left()*surface->bypp+area.top()*surface->stride;
 			for (int y=0; y<area.height(); y++)
 			{
-				if (flag & blitAlphaTest)
+				if (flag & (blitAlphaTest|blitAlphaBlend))
 				{
   		      // no real alphatest yet
 					int width=area.width();
@@ -305,6 +401,7 @@ void gPixmap::blit(const gPixmap &src, ePoint pos, const gRegion &clip, int flag
 						dst[2] = BLEND(sr, dr, sa);
 						dst[1] = BLEND(sg, dg, sa);
 						dst[0] = BLEND(sb, db, sa);
+#undef BLEND
 
 						src += 4; dst += 4;
 					}
@@ -332,30 +429,15 @@ void gPixmap::blit(const gPixmap &src, ePoint pos, const gRegion &clip, int flag
 			dstptr+=area.left()*surface->bypp+area.top()*surface->stride;
 			for (int y=0; y<area.height(); y++)
 			{
+				int width=area.width();
+				unsigned char *psrc=(unsigned char*)srcptr;
+				__u32 *dst=(__u32*)dstptr;
 				if (flag & blitAlphaTest)
-				{
-	  	      // no real alphatest yet
-					int width=area.width();
-					unsigned char *src=(unsigned char*)srcptr;
-					__u32 *dst=(__u32*)dstptr;
-						// use duff's device here!
-					while (width--)
-					{
-						if (!(pal[*src]&0x80000000))
-						{
-							src++;
-							dst++;
-						} else
-							*dst++=pal[*src++];
-					}
-				} else
-				{
-					int width=area.width();
-					unsigned char *src=(unsigned char*)srcptr;
-					__u32 *dst=(__u32*)dstptr;
-					while (width--)
-						*dst++=pal[*src++];
-				}
+					blit_8i_to_32_at(dst, psrc, pal, width);
+				else if (flag & blitAlphaBlend)
+					blit_8i_to_32_ab(dst, psrc, pal, width);
+				else
+					blit_8i_to_32(dst, psrc, pal, width);
 				srcptr+=src.surface->stride;
 				dstptr+=surface->stride;
 			}
@@ -364,6 +446,8 @@ void gPixmap::blit(const gPixmap &src, ePoint pos, const gRegion &clip, int flag
 	}
 }
 
+#undef FIX
+
 void gPixmap::mergePalette(const gPixmap &target)
 {
 	if ((!surface->clut.colors) || (!target.surface->clut.colors))