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Diffstat (limited to 'src/com/android/gallery3d/ui/GLCanvasImpl.java')
-rw-r--r--src/com/android/gallery3d/ui/GLCanvasImpl.java82
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);
}