X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=ycbcr_input.cpp;h=6cf311628692b5c278ce20c99071d02739be9451;hp=4166da9752d35c78b8061a3ca24dabef198c6daf;hb=772ea97db9042d4357814b834563036217d548b9;hpb=358df88f77e4f8ae2ead71a06dc36bf5402d9b5d

diff --git a/ycbcr_input.cpp b/ycbcr_input.cpp
index 4166da9..6cf3116 100644
--- a/ycbcr_input.cpp
+++ b/ycbcr_input.cpp
@@ -1,6 +1,6 @@
 #include <Eigen/Core>
 #include <Eigen/LU>
-#include <GL/glew.h>
+#include <epoxy/gl.h>
 #include <assert.h>
 #include <stdio.h>
 #include <string.h>
@@ -11,6 +11,9 @@
 #include "ycbcr_input.h"
 
 using namespace Eigen;
+using namespace std;
+
+namespace movit {
 
 namespace {
 
@@ -62,8 +65,6 @@ YCbCrInput::YCbCrInput(const ImageFormat &image_format,
                        unsigned width, unsigned height)
 	: image_format(image_format),
 	  ycbcr_format(ycbcr_format),
-	  finalized(false),
-	  needs_mipmaps(false),
 	  width(width),
 	  height(height),
 	  resource_pool(NULL)
@@ -82,8 +83,6 @@ YCbCrInput::YCbCrInput(const ImageFormat &image_format,
 	heights[2] = height / ycbcr_format.chroma_subsampling_y;
 
 	pixel_data[0] = pixel_data[1] = pixel_data[2] = NULL;
-
-	register_int("needs_mipmaps", &needs_mipmaps);
 }
 
 YCbCrInput::~YCbCrInput()
@@ -95,12 +94,7 @@ YCbCrInput::~YCbCrInput()
 	}
 }
 
-void YCbCrInput::finalize()
-{
-	finalized = true;
-}
-	
-void YCbCrInput::set_gl_state(GLuint glsl_program_num, const std::string& prefix, unsigned *sampler_num)
+void YCbCrInput::set_gl_state(GLuint glsl_program_num, const string& prefix, unsigned *sampler_num)
 {
 	for (unsigned channel = 0; channel < 3; ++channel) {
 		glActiveTexture(GL_TEXTURE0 + *sampler_num + channel);
@@ -108,7 +102,7 @@ void YCbCrInput::set_gl_state(GLuint glsl_program_num, const std::string& prefix
 
 		if (texture_num[channel] == 0) {
 			// (Re-)upload the texture.
-			texture_num[channel] = resource_pool->create_2d_texture(GL_LUMINANCE8, widths[channel], heights[channel]);
+			texture_num[channel] = resource_pool->create_2d_texture(GL_R8, widths[channel], heights[channel]);
 			glBindTexture(GL_TEXTURE_2D, texture_num[channel]);
 			check_error();
 			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
@@ -119,7 +113,7 @@ void YCbCrInput::set_gl_state(GLuint glsl_program_num, const std::string& prefix
 			check_error();
 			glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch[channel]);
 			check_error();
-			glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, widths[channel], heights[channel], GL_LUMINANCE, GL_UNSIGNED_BYTE, pixel_data[channel]);
+			glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, widths[channel], heights[channel], GL_RED, GL_UNSIGNED_BYTE, pixel_data[channel]);
 			check_error();
 			glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
 			check_error();
@@ -144,9 +138,10 @@ void YCbCrInput::set_gl_state(GLuint glsl_program_num, const std::string& prefix
 	*sampler_num += 3;
 }
 
-std::string YCbCrInput::output_fragment_shader()
+string YCbCrInput::output_fragment_shader()
 {
-	float coeff[3], offset[3], scale[3];
+	float coeff[3], offset[3];
+	double scale[3];
 
 	switch (ycbcr_format.luma_coefficients) {
 	case YCBCR_REC_601:
@@ -212,34 +207,25 @@ std::string YCbCrInput::output_fragment_shader()
 	// Inverting the matrix gives us what we need to go from YCbCr back to RGB.
 	Matrix3d ycbcr_to_rgb = rgb_to_ycbcr.inverse();
 
-	std::string frag_shader;
-
-	frag_shader = output_glsl_mat3("PREFIX(inv_ycbcr_matrix)", ycbcr_to_rgb);
+	// Fold in the scaling.
+	ycbcr_to_rgb *= Map<const Vector3d>(scale).asDiagonal();
 
-	char buf[256];
-	sprintf(buf, "const vec3 PREFIX(offset) = vec3(%.8f, %.8f, %.8f);\n",
-		offset[0], offset[1], offset[2]);
-	frag_shader += buf;
+	string frag_shader;
 
-	sprintf(buf, "const vec3 PREFIX(scale) = vec3(%.8f, %.8f, %.8f);\n",
-		scale[0], scale[1], scale[2]);
-	frag_shader += buf;
+	frag_shader = output_glsl_mat3("PREFIX(inv_ycbcr_matrix)", ycbcr_to_rgb);
+	frag_shader += output_glsl_vec3("PREFIX(offset)", offset[0], offset[1], offset[2]);
 
 	float cb_offset_x = compute_chroma_offset(
 		ycbcr_format.cb_x_position, ycbcr_format.chroma_subsampling_x, widths[1]);
 	float cb_offset_y = compute_chroma_offset(
 		ycbcr_format.cb_y_position, ycbcr_format.chroma_subsampling_y, heights[1]);
-	sprintf(buf, "const vec2 PREFIX(cb_offset) = vec2(%.8f, %.8f);\n",
-		cb_offset_x, cb_offset_y);
-	frag_shader += buf;
+	frag_shader += output_glsl_vec2("PREFIX(cb_offset)", cb_offset_x, cb_offset_y);
 
 	float cr_offset_x = compute_chroma_offset(
 		ycbcr_format.cr_x_position, ycbcr_format.chroma_subsampling_x, widths[2]);
 	float cr_offset_y = compute_chroma_offset(
 		ycbcr_format.cr_y_position, ycbcr_format.chroma_subsampling_y, heights[2]);
-	sprintf(buf, "const vec2 PREFIX(cr_offset) = vec2(%.8f, %.8f);\n",
-		cr_offset_x, cr_offset_y);
-	frag_shader += buf;
+	frag_shader += output_glsl_vec2("PREFIX(cr_offset)", cr_offset_x, cr_offset_y);
 
 	frag_shader += read_file("ycbcr_input.frag");
 	return frag_shader;
@@ -254,3 +240,14 @@ void YCbCrInput::invalidate_pixel_data()
 		}
 	}
 }
+
+bool YCbCrInput::set_int(const std::string& key, int value)
+{
+	if (key == "needs_mipmaps") {
+		// We currently do not support this.
+		return (value == 0);
+	}
+	return Effect::set_int(key, value);
+}
+
+}  // namespace movit