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GUAC-236: Store and preseve frame buffer within each layer.

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This commit is contained in:
Michael Jumper 2016-02-28 14:55:29 -08:00
parent 80b3d51a49
commit 79181567e5
2 changed files with 17 additions and 0 deletions
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11
src/guacenc/layer.c
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@ -40,6 +40,14 @@ guacenc_layer* guacenc_layer_alloc() {
return NULL; return NULL;
} }
/* Allocate buffer for frame rendering */
layer->frame = guacenc_buffer_alloc();
if (layer->frame== NULL) {
guacenc_buffer_free(layer->buffer);
free(layer);
return NULL;
}
/* Layers default to fully opaque */ /* Layers default to fully opaque */
layer->opacity = 0xFF; layer->opacity = 0xFF;
@ -56,6 +64,9 @@ void guacenc_layer_free(guacenc_layer* layer) {
if (layer == NULL) if (layer == NULL)
return; return;
/* Free internal frame buffer */
guacenc_buffer_free(layer->frame);
/* Free underlying buffer */ /* Free underlying buffer */
guacenc_buffer_free(layer->buffer); guacenc_buffer_free(layer->buffer);

6
src/guacenc/layer.h
View File

@ -74,6 +74,12 @@ typedef struct guacenc_layer {
*/ */
int opacity; int opacity;
/**
* The internal buffer used by to record the state of this layer in the
* previous frame and to render additional frames.
*/
guacenc_buffer* frame;
} guacenc_layer; } guacenc_layer;
/** /**