]> git.sesse.net Git - movit/blobdiff - main.cpp
Yet more moving of stuff around.
[movit] / main.cpp
index 84837395879a43f10f4a897f772846d3e757966a..3b2bcad7961dc53c5bd13ed8a8703602c2b5bfd3 100644 (file)
--- a/main.cpp
+++ b/main.cpp
@@ -22,6 +22,7 @@
 #include <GL/glext.h>
 
 #include "effect.h"
+#include "effect_chain.h"
 #include "util.h"
 #include "widgets.h"
 #include "texture_enum.h"
@@ -37,165 +38,6 @@ float lift_r = 0.0f, lift_g = 0.0f, lift_b = 0.0f;
 float gamma_r = 1.0f, gamma_g = 1.0f, gamma_b = 1.0f;
 float gain_r = 1.0f, gain_g = 1.0f, gain_b = 1.0f;
 
-enum PixelFormat { FORMAT_RGB, FORMAT_RGBA };
-
-enum ColorSpace {
-       COLORSPACE_sRGB = 0,
-       COLORSPACE_REC_709 = 0,  // Same as sRGB.
-       COLORSPACE_REC_601_525 = 1,
-       COLORSPACE_REC_601_625 = 2,
-};
-
-enum GammaCurve {
-       GAMMA_LINEAR = 0,
-       GAMMA_sRGB = 1,
-       GAMMA_REC_601 = 2,
-       GAMMA_REC_709 = 2,  // Same as Rec. 601.
-};
-
-struct ImageFormat {
-       PixelFormat pixel_format;
-       ColorSpace color_space;
-       GammaCurve gamma_curve;
-};
-
-enum EffectId {
-       // Mostly for internal use.
-       GAMMA_CONVERSION = 0,
-       RGB_PRIMARIES_CONVERSION,
-
-       // Color.
-       LIFT_GAMMA_GAIN,
-};
-
-// Can alias on a float[3].
-struct RGBTriplet {
-       RGBTriplet(float r, float g, float b)
-               : r(r), g(g), b(b) {}
-
-       float r, g, b;
-};
-
-class GammaExpansionEffect : public Effect {
-public:
-       GammaExpansionEffect()
-               : source_curve(GAMMA_LINEAR)
-       {
-               register_int("source_curve", (int *)&source_curve);
-       }
-
-private:
-       GammaCurve source_curve;
-};
-
-class ColorSpaceConversionEffect : public Effect {
-public:
-       ColorSpaceConversionEffect()
-               : source_space(COLORSPACE_sRGB),
-                 destination_space(COLORSPACE_sRGB)
-       {
-               register_int("source_space", (int *)&source_space);
-               register_int("destination_space", (int *)&destination_space);
-       }
-
-private:
-       ColorSpace source_space, destination_space;
-};
-
-class ColorSpaceConversionEffect;
-
-class LiftGammaGainEffect : public Effect {
-public:
-       LiftGammaGainEffect()
-               : lift(0.0f, 0.0f, 0.0f),
-                 gamma(1.0f, 1.0f, 1.0f),
-                 gain(1.0f, 1.0f, 1.0f),
-                 saturation(1.0f)
-       {
-               register_vec3("lift", (float *)&lift);
-               register_vec3("gamma", (float *)&gamma);
-               register_vec3("gain", (float *)&gain);
-               register_float("saturation", &saturation);
-       }
-
-private:
-       RGBTriplet lift, gamma, gain;
-       float saturation;
-};
-
-class EffectChain {
-public:
-       EffectChain(unsigned width, unsigned height);
-       void add_input(const ImageFormat &format);
-
-       // The pointer is owned by EffectChain.
-       Effect *add_effect(EffectId effect);
-
-       void add_output(const ImageFormat &format);
-
-       void render(unsigned char *src, unsigned char *dst);
-
-private:
-       unsigned width, height;
-       ImageFormat input_format, output_format;
-       std::vector<Effect *> effects;
-
-       ColorSpace current_color_space;
-       GammaCurve current_gamma_curve; 
-};
-
-EffectChain::EffectChain(unsigned width, unsigned height)
-       : width(width), height(height) {}
-
-void EffectChain::add_input(const ImageFormat &format)
-{
-       input_format = format;
-       current_color_space = format.color_space;
-       current_gamma_curve = format.gamma_curve;
-}
-
-void EffectChain::add_output(const ImageFormat &format)
-{
-       output_format = format;
-}
-       
-Effect *instantiate_effect(EffectId effect)
-{
-       switch (effect) {
-       case GAMMA_CONVERSION:
-               return new GammaExpansionEffect();
-       case RGB_PRIMARIES_CONVERSION:
-               return new GammaExpansionEffect();
-       case LIFT_GAMMA_GAIN:
-               return new LiftGammaGainEffect();
-       }
-       assert(false);
-}
-
-Effect *EffectChain::add_effect(EffectId effect_id)
-{
-       Effect *effect = instantiate_effect(effect_id);
-
-       if (effect->needs_linear_light() && current_gamma_curve != GAMMA_LINEAR) {
-               GammaExpansionEffect *gamma_conversion = new GammaExpansionEffect();
-               gamma_conversion->set_int("source_curve", current_gamma_curve);
-               effects.push_back(gamma_conversion);
-               current_gamma_curve = GAMMA_LINEAR;
-       }
-
-       if (effect->needs_srgb_primaries() && current_color_space != COLORSPACE_sRGB) {
-               assert(current_gamma_curve == GAMMA_LINEAR);
-               ColorSpaceConversionEffect *colorspace_conversion = new ColorSpaceConversionEffect();
-               colorspace_conversion->set_int("source_space", current_color_space);
-               colorspace_conversion->set_int("destination_space", COLORSPACE_sRGB);
-               effects.push_back(colorspace_conversion);
-               current_color_space = COLORSPACE_sRGB;
-       }
-
-       effects.push_back(effect);
-       return effect;
-}
-
 GLhandleARB read_shader(const char* filename, GLenum type)
 {
        static char buf[131072];