diff options
Diffstat (limited to 'src/graphics.cpp')
| -rw-r--r-- | src/graphics.cpp | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/src/graphics.cpp b/src/graphics.cpp index e6841fa5c..3a6aef3bc 100644 --- a/src/graphics.cpp +++ b/src/graphics.cpp @@ -37,6 +37,10 @@ #include "debug.h" +static unsigned int *cR = nullptr; +static unsigned int *cG = nullptr; +static unsigned int *cB = nullptr; + Graphics::Graphics(): mWidth(0), mHeight(0), @@ -49,7 +53,9 @@ Graphics::Graphics(): mSecure(false), mOpenGL(0), mEnableResize(false), - mNoFrame(false) + mNoFrame(false), + mOldPixel(0), + mOldAlpha(0) { mRect.x = 0; mRect.y = 0; @@ -894,10 +900,12 @@ void Graphics::fillRectangle(const gcn::Rectangle& rectangle) } case 4: { +#if SDL_BYTEORDER == SDL_BIG_ENDIAN const unsigned pb = (pixel & 0xff) * mColor.a; const unsigned pg = (pixel & 0xff00) * mColor.a; const unsigned pr = (pixel & 0xff0000) * mColor.a; const unsigned a1 = (255 - mColor.a); + for (y = y1; y < y2; y++) { Uint8 *p0 = static_cast<Uint8 *>(mTarget->pixels) @@ -915,6 +923,50 @@ void Graphics::fillRectangle(const gcn::Rectangle& rectangle) | (g & 0xff00) | (r & 0xff0000)); } } +#else + if (!cR) + { + cR = new unsigned int[0xff]; + cG = new unsigned int[0xff]; + cB = new unsigned int[0xff]; + mOldPixel = 0; + mOldAlpha = mColor.a; + } + + if (pixel != mOldPixel || mColor.a != mOldAlpha) + { + const unsigned pb = (pixel & 0xff) * mColor.a; + const unsigned pg = (pixel & 0xff00) * mColor.a; + const unsigned pr = (pixel & 0xff0000) * mColor.a; + const unsigned a1 = (255 - mColor.a); + + const unsigned int a2 = a1 * 0xff; + const unsigned int a3 = a1 * 0xff00; + + for (int f = 0; f < 0xff; f ++) + { + cB[f] = ((pb + f * a1) >> 8) & 0xff; + cG[f] = ((pg + f * a2) >> 8) & 0xff00; + cR[f] = ((pr + f * a3) >> 8) & 0xff0000; + } + + mOldPixel = pixel; + mOldAlpha = mColor.a; + } + + for (y = y1; y < y2; y++) + { + Uint32 *p0 = reinterpret_cast<Uint32*>(static_cast<Uint8*>( + mTarget->pixels) + y * mTarget->pitch); + for (x = x1; x < x2; x++) + { + Uint32 *p = p0 + x; + Uint32 dst = *reinterpret_cast<Uint32*>(p); + *p = cB[dst & 0xff] | cG[(dst & 0xff00) >> 8] + | cR[(dst & 0xff0000) >> 16]; + } + } +#endif break; } default: |