X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=nageru%2Fimage_input.h;h=6ccdd128cdd15159f4806f2f98f87f60a0f3ba80;hb=f9024d141398e69e7b4011becd3ebbe37eaa1776;hp=02be497ff40e2dccee5f569a5be2e1e98a6ae4c5;hpb=392f9d1ccb835c05a3874c4bea163788b2c37024;p=nageru

diff --git a/nageru/image_input.h b/nageru/image_input.h
index 02be497..6ccdd12 100644
--- a/nageru/image_input.h
+++ b/nageru/image_input.h
@@ -13,37 +13,54 @@
 #include <string>
 #include <thread>
 
+#include "ref_counted_texture.h"
+#include "tweaked_inputs.h"
+
+class QSurface;
+
 // An output that takes its input from a static image, loaded with ffmpeg.
 // comes from a single 2D array with chunky pixels. The image is refreshed
 // from disk about every second.
-class ImageInput : public movit::FlatInput {
+class ImageInput : public sRGBSwitchingFlatInput {
 public:
+	// For loading images.
+	// NOTE: You will need to call start_update_thread() yourself, once per program.
+	struct Image {
+		unsigned width, height;
+		RefCountedTexture tex;
+		timespec last_modified;
+	};
+	static std::shared_ptr<const Image> load_image(const std::string &filename, const std::string &pathname);
+
+	// Actual members.
+
+	ImageInput();  // Construct an empty input, which can't be used until you call switch_image().
 	ImageInput(const std::string &filename);
 
 	std::string effect_type_id() const override { return "ImageInput"; }
 	void set_gl_state(GLuint glsl_program_num, const std::string& prefix, unsigned *sampler_num) override;
-	static void shutdown_updaters();
+
+	// Switch to a different image. The image must be previously loaded using load_image().
+	void switch_image(const std::string &pathname);
+
+	std::string get_pathname() const { return pathname; }
+
+	static void start_update_thread(QSurface *surface);
+	static void end_update_thread();
 	
 private:
-	struct Image {
-		unsigned width, height;
-		std::unique_ptr<uint8_t[]> pixels;
-		timespec last_modified;
-	};
-
-	std::string filename, pathname;
+	std::string pathname;
 	std::shared_ptr<const Image> current_image;
 
-	static std::shared_ptr<const Image> load_image(const std::string &filename, const std::string &pathname);
 	static std::shared_ptr<const Image> load_image_raw(const std::string &pathname);
-	static void update_thread_func(const std::string &filename, const std::string &pathname, const timespec &first_modified);
+	static void update_thread_func(QSurface *surface);
 	static std::mutex all_images_lock;
-	static std::map<std::string, std::shared_ptr<const Image>> all_images;
-	static std::map<std::string, std::thread> update_threads;
+	static std::map<std::string, std::shared_ptr<const Image>> all_images;  // Under all_images_lock.
 
-	static std::mutex threads_should_quit_mu;
-	static bool threads_should_quit;  // Under threads_should_quit_mu.
-	static std::condition_variable threads_should_quit_modified;  // Signals when threads_should_quit is set.
+	static std::thread update_thread;
+	static std::mutex update_thread_should_quit_mu;
+	static bool update_thread_should_quit;  // Under thread_should_quit_mu.
+	static std::condition_variable update_thread_should_quit_modified;  // Signals when threads_should_quit is set.
 };
 
 #endif // !defined(_IMAGE_INPUT_H)