X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=ycbcr_input.h;h=97ad5266bb3b0c9942f39dd3a2964aceedf848c1;hp=379279fbf7e101afda0684b7e446c7d7b0f93299;hb=9580d67514ec138e65496aa1170c63b53f657207;hpb=4a9b478d0cc333e7b47a766d3d27ffe67c08f15a

diff --git a/ycbcr_input.h b/ycbcr_input.h
index 379279f..97ad526 100644
--- a/ycbcr_input.h
+++ b/ycbcr_input.h
@@ -1,44 +1,35 @@
-#ifndef _YCBCR_INPUT_H
-#define _YCBCR_INPUT_H 1
+#ifndef _MOVIT_YCBCR_INPUT_H
+#define _MOVIT_YCBCR_INPUT_H 1
 
 // YCbCrInput is for handling planar 8-bit Y'CbCr (also sometimes, usually rather
 // imprecisely, called “YUV”), which is typically what you get from a video decoder.
 // It upsamples planes as needed, using the default linear upsampling OpenGL gives you.
 
-#include "input.h"
+#include <epoxy/gl.h>
+#include <assert.h>
+#include <string>
 
-struct YCbCrFormat {
-	// Which formula for Y' to use.
-	YCbCrLumaCoefficients luma_coefficients;
+#include "effect.h"
+#include "effect_chain.h"
+#include "image_format.h"
+#include "input.h"
+#include "ycbcr.h"
 
-	// If true, assume Y'CbCr coefficients are full-range, ie. go from 0 to 255
-	// instead of the limited 220/225 steps in classic MPEG. For instance,
-	// JPEG uses the Rec. 601 luma coefficients, but full range.
-	bool full_range;
+namespace movit {
 
-	// Sampling factors for chroma components. For no subsampling (4:4:4),
-	// set both to 1.
-	unsigned chroma_subsampling_x, chroma_subsampling_y;
-
-	// Positioning of the chroma samples. MPEG-1 and JPEG is (0.5, 0.5);
-	// MPEG-2 and newer typically are (0.0, 0.5).
-	float chroma_x_position, chroma_y_position;
-};
+class ResourcePool;
 
 class YCbCrInput : public Input {
 public:
 	YCbCrInput(const ImageFormat &image_format,
 	           const YCbCrFormat &ycbcr_format,
 	           unsigned width, unsigned height);
+	~YCbCrInput();
 
 	virtual std::string effect_type_id() const { return "YCbCrInput"; }
 
-	// Create the texture itself. We cannot do this in the constructor,
-	// because we don't necessarily know all the settings (sRGB texture,
-	// mipmap generation) at that point.
-	void finalize();
-
 	virtual bool can_output_linear_gamma() const { return false; }
+	virtual AlphaHandling alpha_handling() const { return OUTPUT_BLANK_ALPHA; }
 
 	std::string output_fragment_shader();
 
@@ -47,55 +38,54 @@ public:
 
 	unsigned get_width() const { return width; }
 	unsigned get_height() const { return height; }
-	ColorSpace get_color_space() const { return image_format.color_space; }
+	Colorspace get_color_space() const { return image_format.color_space; }
 	GammaCurve get_gamma_curve() const { return image_format.gamma_curve; }
+	virtual bool can_supply_mipmaps() const { return false; }
 
 	// Tells the input where to fetch the actual pixel data. Note that if you change
 	// this data, you must either call set_pixel_data() again (using the same pointer
 	// is fine), or invalidate_pixel_data(). Otherwise, the texture won't be re-uploaded
 	// on subsequent frames.
-	void set_pixel_data(unsigned channel, const unsigned char *pixel_data)
+	//
+	// The data can either be a regular pointer (if pbo==0), or a byte offset
+	// into a PBO. The latter will allow you to start uploading the texture data
+	// asynchronously to the GPU, if you have any CPU-intensive work between the
+	// call to set_pixel_data() and the actual rendering. In either case,
+	// the pointer (and PBO, if set) has to be valid at the time of the render call.
+	void set_pixel_data(unsigned channel, const unsigned char *pixel_data, GLuint pbo = 0)
 	{
 		assert(channel >= 0 && channel < 3);
 		this->pixel_data[channel] = pixel_data;
+		this->pbos[channel] = pbo;
 		invalidate_pixel_data();
 	}
 
-	void invalidate_pixel_data()
-	{
-		needs_update = true;
-	}
-
-	const unsigned char *get_pixel_data(unsigned channel) const
-	{
-		assert(channel >= 0 && channel < 3);
-		return pixel_data[channel];
-	}
+	void invalidate_pixel_data();
 
 	void set_pitch(unsigned channel, unsigned pitch) {
 		assert(channel >= 0 && channel < 3);
-		if (this->pitch[channel] != pitch) {
-			this->pitch[channel] = pitch;
-			needs_pbo_recreate = true;
-		}
+		this->pitch[channel] = pitch;
+		invalidate_pixel_data();
 	}
 
-	unsigned get_pitch(unsigned channel) {
-		assert(channel >= 0 && channel < 3);
-		return pitch[channel];
+	virtual void inform_added(EffectChain *chain)
+	{
+		resource_pool = chain->get_resource_pool();
 	}
 
+	bool set_int(const std::string& key, int value);
+
 private:
 	ImageFormat image_format;
 	YCbCrFormat ycbcr_format;
 	GLuint pbos[3], texture_num[3];
-	bool needs_update, needs_pbo_recreate, finalized;
-
-	int needs_mipmaps;
 
 	unsigned width, height, widths[3], heights[3];
 	const unsigned char *pixel_data[3];
 	unsigned pitch[3];
+	ResourcePool *resource_pool;
 };
 
-#endif // !defined(_YCBCR_INPUT_H)
+}  // namespace movit
+
+#endif // !defined(_MOVIT_YCBCR_INPUT_H)