Converter/Poll.py: fix suspend
[enigma2.git] / lib / gdi / gpixmap.cpp
index 855cb8b..3e64310 100644 (file)
@@ -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))