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more efficient implementation of setImpl()

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codeanticode
2015-05-31 19:57:39 -04:00
parent 247690b142
commit d3a14b67e1
1 changed files with 16 additions and 14 deletions
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30
core/src/processing/opengl/PGraphicsOpenGL.java
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@@ -5733,20 +5733,21 @@ public class PGraphicsOpenGL extends PGraphics {
int sourceX, int sourceY,
int sourceWidth, int sourceHeight,
int targetX, int targetY) {
// Copies the pixels
loadPixels();
super.setImpl(sourceImage, sourceX, sourceY, sourceWidth, sourceHeight,
targetX, targetY);
// do we need this?
// see https://github.com/processing/processing/issues/2125
// if (sourceImage.format == RGB) {
// int targetOffset = targetY * width + targetX;
// for (int y = sourceY; y < sourceY + sourceHeight; y++) {
// for (int x = targetOffset; x < targetOffset + sourceWidth; x++) {
// pixels[x] |= 0xff000000;
// }
// targetOffset += width;
// }
// }
int sourceOffset = sourceY * sourceImage.pixelWidth + sourceX;
int targetOffset = targetY * pixelWidth + targetX;
for (int y = sourceY; y < sourceY + sourceHeight; y++) {
System.arraycopy(sourceImage.pixels, sourceOffset, pixels, targetOffset, sourceWidth);
sourceOffset += sourceImage.pixelWidth;
targetOffset += pixelWidth;
}
// Draws the texture, copy() is very efficient because it simply renders
// the texture cache of sourceImage using OpenGL.
copy(sourceImage,
sourceX, sourceY, sourceWidth, sourceHeight,
targetX, targetY, sourceWidth, sourceHeight);
}
@@ -5893,7 +5894,8 @@ public class PGraphicsOpenGL extends PGraphics {
// Processing Y axis is inverted with respect to OpenGL, so we need to
// invert the y coordinates of the screen rectangle.
pgl.disable(PGL.BLEND);
pgl.drawTexture(texture.glTarget, texture.glName, texture.glWidth, texture.glHeight,
pgl.drawTexture(texture.glTarget, texture.glName,
texture.glWidth, texture.glHeight,
0, 0, width, height,
x, y, x + w, y + h,
x, height - (y + h), x + w, height - y);