X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=chroma_subsampler.h;h=d4c1c1ed22c26c4535e476741b137145f48bcf38;hb=96cb6414f85e0ef4d660b7bd56267303e80fcd05;hp=811f901697fc1ae9374962195e924d1a2fceacfa;hpb=aad435ecc01e9e2fb3bc44274887213f9484cf10;p=nageru

diff --git a/chroma_subsampler.h b/chroma_subsampler.h
index 811f901..d4c1c1e 100644
--- a/chroma_subsampler.h
+++ b/chroma_subsampler.h
@@ -17,13 +17,24 @@ public:
 	// Subsamples chroma (packed Cb and Cr) 2x2 to yield chroma suitable for
 	// NV12 (semiplanar 4:2:0). Chroma positioning is left/center (H.264 convention).
 	// width and height are the dimensions (in pixels) of the input texture.
-	void subsample_chroma(GLuint cbcr_tex, unsigned width, unsigned height, GLuint dst_tex);
+	//
+	// You can get two equal copies if you'd like; just set dst2_tex to a texture
+	// number and it will receive an exact copy of what goes into dst_tex.
+	void subsample_chroma(GLuint cbcr_tex, unsigned width, unsigned height, GLuint dst_tex, GLuint dst2_tex = 0);
 
 	// Subsamples and interleaves luma and chroma to give 4:2:2 packed Y'CbCr (UYVY).
 	// Chroma positioning is left (H.264 convention).
 	// width and height are the dimensions (in pixels) of the input textures.
 	void create_uyvy(GLuint y_tex, GLuint cbcr_tex, unsigned width, unsigned height, GLuint dst_tex);
 
+	// Subsamples and interleaves luma and chroma to give 10-bit 4:2:2
+	// packed Y'CbCr (v210); see v210converter.h for more information on
+	// the format. Luma and chroma are assumed to be 10-bit data packed
+	// into 16-bit textures. Chroma positioning is left (H.264 convention).
+	// width and height are the dimensions (in pixels) of the input textures;
+	// Requires compute shaders; check v210Converter::has_hardware_support().
+	void create_v210(GLuint y_tex, GLuint cbcr_tex, unsigned width, unsigned height, GLuint dst_tex);
+
 private:
 	movit::ResourcePool *resource_pool;
 
@@ -36,6 +47,10 @@ private:
 	GLuint uyvy_program_num;  // Owned by <resource_pool>.
 	GLuint uyvy_y_texture_sampler_uniform, uyvy_cbcr_texture_sampler_uniform;
 	GLuint uyvy_position_attribute_index, uyvy_texcoord_attribute_index;
+
+	GLuint v210_program_num;  // Compute shader, so owned by ourselves. Can be 0.
+	GLuint v210_in_y_pos, v210_in_cbcr_pos, v210_outbuf_pos;
+	GLuint v210_inv_width_pos, v210_inv_height_pos;
 };
 
 #endif  // !defined(_CHROMA_SUBSAMPLER_H)