Fix an issue where a (cached) shader program could be used from multiple

[movit] / ycbcr_input.h

diff --git a/ycbcr_input.h b/ycbcr_input.h
index 6f4b66d437b1e5cc140e0fa10264bbc24115f6f2..d0e71e277e27a235e759027e3a39b06e4990354c 100644 (file)
--- a/ycbcr_input.h
+++ b/ycbcr_input.h
@@ -79,7 +79,35 @@ public:
 
        void invalidate_pixel_data();
 
-       void set_pitch(unsigned channel, unsigned pitch) {
+       // Note: Sets pitch to width, so even if your pitch is unchanged,
+       // you will need to re-set it after this call.
+       void set_width(unsigned width)
+       {
+               assert(width != 0);
+               this->width = width;
+
+               assert(width % ycbcr_format.chroma_subsampling_x == 0);
+               pitch[0] = widths[0] = width;
+               pitch[1] = widths[1] = width / ycbcr_format.chroma_subsampling_x;
+               pitch[2] = widths[2] = width / ycbcr_format.chroma_subsampling_x;
+               invalidate_pixel_data();
+       }
+
+       void set_height(unsigned height)
+       {
+               assert(height != 0);
+               this->height = height;
+
+               assert(height % ycbcr_format.chroma_subsampling_y == 0);
+               heights[0] = height;
+               heights[1] = height / ycbcr_format.chroma_subsampling_y;
+               heights[2] = height / ycbcr_format.chroma_subsampling_y;
+               invalidate_pixel_data();
+       }
+
+       void set_pitch(unsigned channel, unsigned pitch)
+       {
+               assert(pitch != 0);
                assert(channel >= 0 && channel < num_channels);
                this->pitch[channel] = pitch;
                invalidate_pixel_data();