X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=jpeg_frame_view.h;h=5ef68d01cb56d50ef7b1677455e2a7fc75fad4a0;hb=e6dd4055a226d31ecb29bc0746bb896e6ff7ff66;hp=60c97d97392de5b6c9f55396f697457a33d55702;hpb=95658a64fb67f9bd624c12dece3a8e1c325a3e56;p=nageru

diff --git a/jpeg_frame_view.h b/jpeg_frame_view.h
index 60c97d9..5ef68d0 100644
--- a/jpeg_frame_view.h
+++ b/jpeg_frame_view.h
@@ -1,38 +1,75 @@
 #ifndef _JPEG_FRAME_VIEW_H
 #define _JPEG_FRAME_VIEW_H 1
 
-#include <QGraphicsView>
-#include <QGraphicsPixmapItem>
-#include <QGraphicsScene>
+#include <epoxy/gl.h>
+#include <QGLWidget>
 
 #include <stdint.h>
 
-class JPEGFrameView : public QGraphicsView {
+#include <movit/effect_chain.h>
+#include <movit/flat_input.h>
+#include <movit/ycbcr_input.h>
+
+#include <memory>
+
+struct JPEGID {
+	unsigned stream_idx;
+	int64_t pts;
+	bool interpolated;
+};
+struct Frame {
+	std::unique_ptr<uint8_t[]> y, cb, cr;
+	unsigned width, height;
+	unsigned chroma_subsampling_x, chroma_subsampling_y;
+	unsigned pitch_y, pitch_chroma;
+};
+enum CacheMissBehavior {
+	DECODE_IF_NOT_IN_CACHE,
+	RETURN_NULLPTR_IF_NOT_IN_CACHE
+};
+
+std::string filename_for_frame(unsigned stream_idx, int64_t pts);
+std::shared_ptr<Frame> decode_jpeg(const std::string &filename);
+std::shared_ptr<Frame> decode_jpeg_with_cache(JPEGID id, CacheMissBehavior cache_miss_behavior, bool *did_decode);
+
+class JPEGFrameView : public QGLWidget {
 	Q_OBJECT
 
 public:
 	JPEGFrameView(QWidget *parent);
 
-	void setFrame(unsigned stream_idx, int64_t pts)
-	{
-		this->stream_idx = stream_idx;
-		this->pts = pts;
-		update_frame();
-	}
+	void setFrame(unsigned stream_idx, int64_t pts, bool interpolated);
+	static void insert_interpolated_frame(unsigned stream_idx, int64_t pts, std::shared_ptr<Frame> frame);
+
+	void mousePressEvent(QMouseEvent *event) override;
+
+	unsigned get_stream_idx() const { return current_stream_idx; }
+
+	void setDecodedFrame(std::shared_ptr<Frame> frame);
+	void set_overlay(const std::string &text);  // Blank for none.
+
+signals:
+	void clicked();
 
 protected:
-	void resizeEvent(QResizeEvent *event) override;
-	void paintEvent(QPaintEvent *event) override;
+	void initializeGL() override;
+	void resizeGL(int width, int height) override;
+	void paintGL() override;
 
 private:
-	void update_frame();
+	// The stream index of the latest frame we displayed.
+	unsigned current_stream_idx;
 
-	QGraphicsPixmapItem item;
-	QGraphicsScene scene;
+	std::unique_ptr<movit::EffectChain> chain;
+	std::shared_ptr<Frame> current_frame;  // So that we hold on to the pixels.
+	movit::YCbCrInput *ycbcr_input;
+	movit::YCbCrFormat ycbcr_format;
 
-	unsigned stream_idx;
-	int64_t pts;
-	bool dirty = false;
+	static constexpr int overlay_width = 16, overlay_height = 16;
+	std::unique_ptr<QImage> overlay_image;  // If nullptr, no overlay.
+	std::unique_ptr<movit::EffectChain> overlay_chain;  // Just to get the overlay on screen in the easiest way possible.
+	movit::FlatInput *overlay_input;
+	bool overlay_input_needs_refresh = false;
 };
 
 #endif  // !defined(_JPEG_FRAME_VIEW_H)