X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=effect_chain.cpp;h=85832db88541cfb90748dd55f8aca171a6621673;hp=9246a4d94285749103011448f16b318743d71ed3;hb=fdf859f872d87d0e2ae27e3ff34a8751145c2ae9;hpb=087adc28dd5b359f28a128aded8fb2c1c69716f2

diff --git a/effect_chain.cpp b/effect_chain.cpp
index 9246a4d..85832db 100644
--- a/effect_chain.cpp
+++ b/effect_chain.cpp
@@ -14,10 +14,11 @@
 #include "lift_gamma_gain_effect.h"
 #include "colorspace_conversion_effect.h"
 #include "saturation_effect.h"
+#include "vignette_effect.h"
 #include "texture_enum.h"
 
 EffectChain::EffectChain(unsigned width, unsigned height)
-	: width(width), height(height), finalized(false) {}
+	: width(width), height(height), use_srgb_texture_format(false), finalized(false) {}
 
 void EffectChain::add_input(const ImageFormat &format)
 {
@@ -38,19 +39,28 @@ Effect *instantiate_effect(EffectId effect)
 		return new GammaExpansionEffect();
 	case EFFECT_GAMMA_COMPRESSION:
 		return new GammaCompressionEffect();
+	case EFFECT_COLOR_SPACE_CONVERSION:
+		return new ColorSpaceConversionEffect();
 	case EFFECT_LIFT_GAMMA_GAIN:
 		return new LiftGammaGainEffect();
 	case EFFECT_SATURATION:
 		return new SaturationEffect();
+	case EFFECT_VIGNETTE:
+		return new VignetteEffect();
 	}
 	assert(false);
 }
 
 void EffectChain::normalize_to_linear_gamma()
 {
-	GammaExpansionEffect *gamma_conversion = new GammaExpansionEffect();
-	gamma_conversion->set_int("source_curve", current_gamma_curve);
-	effects.push_back(gamma_conversion);
+	if (current_gamma_curve == GAMMA_sRGB) {
+		// TODO: check if the extension exists
+		use_srgb_texture_format = true;
+	} else {
+		GammaExpansionEffect *gamma_conversion = new GammaExpansionEffect();
+		gamma_conversion->set_int("source_curve", current_gamma_curve);
+		effects.push_back(gamma_conversion);
+	}
 	current_gamma_curve = GAMMA_LINEAR;
 }
 
@@ -127,7 +137,13 @@ std::string replace_prefix(const std::string &text, const std::string &prefix)
 
 void EffectChain::finalize()
 {
-	// TODO: If we want a non-sRGB output color space, convert.
+	if (current_color_space != output_format.color_space) {
+		ColorSpaceConversionEffect *colorspace_conversion = new ColorSpaceConversionEffect();
+		colorspace_conversion->set_int("source_space", current_color_space);
+		colorspace_conversion->set_int("destination_space", output_format.color_space);
+		effects.push_back(colorspace_conversion);
+		current_color_space = output_format.color_space;
+	}
 
 	if (current_gamma_curve != output_format.gamma_curve) {
 		if (current_gamma_curve != GAMMA_LINEAR) {
@@ -160,8 +176,8 @@ void EffectChain::finalize()
 	printf("%s\n", frag_shader.c_str());
 	
 	glsl_program_num = glCreateProgram();
-	GLhandleARB vs_obj = compile_shader(read_file("vs.glsl"), GL_VERTEX_SHADER);
-	GLhandleARB fs_obj = compile_shader(frag_shader, GL_FRAGMENT_SHADER);
+	GLuint vs_obj = compile_shader(read_file("vs.glsl"), GL_VERTEX_SHADER);
+	GLuint fs_obj = compile_shader(frag_shader, GL_FRAGMENT_SHADER);
 	glAttachShader(glsl_program_num, vs_obj);
 	check_error();
 	glAttachShader(glsl_program_num, fs_obj);
@@ -183,14 +199,21 @@ void EffectChain::render_to_screen(unsigned char *src)
 	glActiveTexture(GL_TEXTURE0);
 	glBindTexture(GL_TEXTURE_2D, SOURCE_IMAGE);
 
-	// TODO: use sRGB textures if applicable
+	GLenum format, internal_format;
+	if (use_srgb_texture_format) {
+		internal_format = GL_SRGB8;
+	} else {
+		internal_format = GL_RGBA8;
+	}
 	if (input_format.pixel_format == FORMAT_RGB) {
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, src);
+		format = GL_RGB;
 	} else if (input_format.pixel_format == FORMAT_RGBA) {
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, src);
+		format = GL_RGBA;
 	} else {
 		assert(false);
 	}
+
+	glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0, format, GL_UNSIGNED_BYTE, src);
 	check_error();
 	glUniform1i(glGetUniformLocation(glsl_program_num, "input_tex"), 0);