diff options
Diffstat (limited to 'graphics')
| -rw-r--r-- | graphics/VectorRenderer.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/graphics/VectorRenderer.h b/graphics/VectorRenderer.h index 3a2d98a376..918ed1c39e 100644 --- a/graphics/VectorRenderer.h +++ b/graphics/VectorRenderer.h @@ -420,6 +420,14 @@ public: */ virtual void copyFrame(OSystem *sys) = 0; + /** + * Blits a given graphics surface on top of the current drawing surface. + * + * @param source Surface to blit into the drawing surface. + * @param r Position in the active drawing surface to do the blitting. + */ + virtual void blitSurface(Graphics::Surface *source, const Common::Rect &r) = 0; + protected: Surface *_activeSurface; /** Pointer to the surface currently being drawn */ @@ -548,6 +556,25 @@ public: sys->updateScreen(); } + /** + * @see VectorRenderer::blitSurface() + */ + virtual void blitSurface(Graphics::Surface *source, const Common::Rect &r) { + PixelType *dst_ptr = (PixelType *)_activeSurface->getBasePtr(r.top, r.left); + PixelType *src_ptr = (PixelType *)source->getBasePtr(0, 0); + + int dst_pitch = surfacePitch(); + int src_pitch = source->pitch / source->bytesPerPixel; + + int h = r.height(), w = r.width(); + + while (h--) { + colorCopy(src_ptr, dst_ptr, w); + dst_ptr += dst_pitch; + src_ptr += src_pitch; + } + } + protected: /** @@ -718,6 +745,31 @@ protected: } } + /** + * Copies several pixes in a row from a surface to another one. + * Used for surface blitting. + * See colorFill() for optimization guidelines. + * + * @param src Source surface. + * @param dst Destination surface. + * @param count Amount of pixels to copy over. + */ + virtual inline void colorCopy(PixelType *src, PixelType *dst, int count) { + register int n = (count + 7) >> 3; + switch (count % 8) { + case 0: do { + *dst++ = *src++; + case 7: *dst++ = *src++; + case 6: *dst++ = *src++; + case 5: *dst++ = *src++; + case 4: *dst++ = *src++; + case 3: *dst++ = *src++; + case 2: *dst++ = *src++; + case 1: *dst++ = *src++; + } while (--n > 0); + } + } + PixelType _fgColor; /** Foreground color currently being used to draw on the renderer */ PixelType _bgColor; /** Background color currently being used to draw on the renderer */ |