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some cleaner logic to allow for #2424, which should also work when video

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buffers start accumulating in the cache on slower machines.
This commit is contained in:
codeanticode
2014-04-06 10:07:54 -04:00
parent c7c20f0183
commit 7c23d482b7
3 changed files with 20 additions and 22 deletions
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24
core/src/processing/opengl/Texture.java
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@@ -882,17 +882,15 @@ public class Texture implements PConstants {
}
public void getBufferPixels(int[] pixels) {
boolean addToUsed = false;
// We get the buffer either from the used buffers or the cache, giving
// priority to the used buffers. Why? Because the used buffer was already
// transferred to the texture, so the pixels should be in sync with the
// texture.
BufferData data = null;
if (usedBuffers != null && 0 < usedBuffers.size()) {
// the last used buffer is the one currently stored in the opengl
// texture
data = usedBuffers.getLast();
} else if (bufferCache != null && 0 < bufferCache.size()) {
// The first buffer in the cache will be uploaded to the opengl texture
// the next time it is rendered
data = bufferCache.remove(0);
addToUsed = true;
data = bufferCache.getLast();
}
if (data != null) {
if ((data.w != width) || (data.h != height)) {
@@ -903,10 +901,14 @@ public class Texture implements PConstants {
data.rgbBuf.get(pixels);
convertToARGB(pixels);
if (addToUsed) {
if (usedBuffers == null) {
usedBuffers = new LinkedList<BufferData>();
}
// In order to avoid a cached buffer to overwrite the texture when the
// renderer draws the texture, and hence put the pixels put of sync, we
// simply empty the cache.
if (usedBuffers == null) {
usedBuffers = new LinkedList<BufferData>();
}
while (0 < bufferCache.size()) {
data = bufferCache.remove(0);
usedBuffers.add(data);
}
}