diff options
Diffstat (limited to 'src/com/android/gallery3d/ui/GLCanvasImpl.java')
-rw-r--r-- | src/com/android/gallery3d/ui/GLCanvasImpl.java | 82 |
1 files changed, 61 insertions, 21 deletions
diff --git a/src/com/android/gallery3d/ui/GLCanvasImpl.java b/src/com/android/gallery3d/ui/GLCanvasImpl.java index d83daf3e4..45903b3cd 100644 --- a/src/com/android/gallery3d/ui/GLCanvasImpl.java +++ b/src/com/android/gallery3d/ui/GLCanvasImpl.java @@ -415,7 +415,7 @@ public class GLCanvasImpl implements GLCanvas { // This function changes the source coordinate to the texture coordinates. // It also clips the source and target coordinates if it is beyond the // bound of the texture. - private void convertCoordinate(RectF source, RectF target, + private static void convertCoordinate(RectF source, RectF target, BasicTexture texture) { int width = texture.getWidth(); @@ -465,23 +465,7 @@ public class GLCanvasImpl implements GLCanvas { color[3] = alpha; } - private void drawMixed(BasicTexture from, int toColor, - float ratio, int x, int y, int width, int height, float alpha) { - // change from 0 to 0.01f to prevent getting divided by zero below - if (ratio <= 0.01f) { - drawTexture(from, x, y, width, height, alpha); - return; - } else if (ratio >= 1) { - fillRect(x, y, width, height, toColor); - return; - } - - mGLState.setBlendEnabled(mBlendEnabled && (!from.isOpaque() - || !Utils.isOpaque(toColor) || alpha < OPAQUE_ALPHA)); - - final GL11 gl = mGL; - if (!bindTexture(from)) return; - + private void setMixedColor(int toColor, float ratio, float alpha) { // // The formula we want: // alpha * ((1 - ratio) * from + ratio * to) @@ -495,9 +479,6 @@ public class GLCanvasImpl implements GLCanvas { float combo = alpha * (1 - ratio); float scale = alpha * ratio / (1 - combo); - // Interpolate the RGB and alpha values between both textures. - mGLState.setTexEnvMode(GL11.GL_COMBINE); - // Specify the interpolation factor via the alpha component of // GL_TEXTURE_ENV_COLORs. // RGB component are get from toColor and will used as SRC1 @@ -505,6 +486,7 @@ public class GLCanvasImpl implements GLCanvas { setTextureColor(((toColor >>> 16) & 0xff) * colorScale, ((toColor >>> 8) & 0xff) * colorScale, (toColor & 0xff) * colorScale, combo); + GL11 gl = mGL; gl.glTexEnvfv(GL11.GL_TEXTURE_ENV, GL11.GL_TEXTURE_ENV_COLOR, mTextureColor, 0); gl.glTexEnvf(GL11.GL_TEXTURE_ENV, GL11.GL_COMBINE_RGB, GL11.GL_INTERPOLATE); @@ -522,6 +504,64 @@ public class GLCanvasImpl implements GLCanvas { gl.glTexEnvf(GL11.GL_TEXTURE_ENV, GL11.GL_SRC2_ALPHA, GL11.GL_CONSTANT); gl.glTexEnvf(GL11.GL_TEXTURE_ENV, GL11.GL_OPERAND2_ALPHA, GL11.GL_SRC_ALPHA); + } + + @Override + public void drawMixed(BasicTexture from, int toColor, float ratio, + RectF source, RectF target) { + if (target.width() <= 0 || target.height() <= 0) return; + + if (ratio <= 0.01f) { + drawTexture(from, source, target); + return; + } else if (ratio >= 1) { + fillRect(target.left, target.top, target.width(), target.height(), toColor); + return; + } + + float alpha = mAlpha; + + // Copy the input to avoid changing it. + mDrawTextureSourceRect.set(source); + mDrawTextureTargetRect.set(target); + source = mDrawTextureSourceRect; + target = mDrawTextureTargetRect; + + mGLState.setBlendEnabled(mBlendEnabled && (!from.isOpaque() + || !Utils.isOpaque(toColor) || alpha < OPAQUE_ALPHA)); + + if (!bindTexture(from)) return; + + // Interpolate the RGB and alpha values between both textures. + mGLState.setTexEnvMode(GL11.GL_COMBINE); + setMixedColor(toColor, ratio, alpha); + convertCoordinate(source, target, from); + setTextureCoords(source); + textureRect(target.left, target.top, target.width(), target.height()); + mGLState.setTexEnvMode(GL11.GL_REPLACE); + } + + private void drawMixed(BasicTexture from, int toColor, + float ratio, int x, int y, int width, int height, float alpha) { + // change from 0 to 0.01f to prevent getting divided by zero below + if (ratio <= 0.01f) { + drawTexture(from, x, y, width, height, alpha); + return; + } else if (ratio >= 1) { + fillRect(x, y, width, height, toColor); + return; + } + + mGLState.setBlendEnabled(mBlendEnabled && (!from.isOpaque() + || !Utils.isOpaque(toColor) || alpha < OPAQUE_ALPHA)); + + final GL11 gl = mGL; + if (!bindTexture(from)) return; + + // Interpolate the RGB and alpha values between both textures. + mGLState.setTexEnvMode(GL11.GL_COMBINE); + setMixedColor(toColor, ratio, alpha); + drawBoundTexture(from, x, y, width, height); mGLState.setTexEnvMode(GL11.GL_REPLACE); } |