#define HEIGHT 720
#define BUFFER_OFFSET(i) ((char *)NULL + (i))
+#include <string.h>
#include <math.h>
#include <time.h>
+#include <assert.h>
#include <string>
#include <vector>
+#include <map>
#include <SDL/SDL.h>
#include <SDL/SDL_opengl.h>
#include <GL/gl.h>
#include <GL/glext.h>
+#include "effect.h"
+#include "effect_chain.h"
#include "util.h"
#include "widgets.h"
#include "texture_enum.h"
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;
-struct ImageFormat {
- enum { FORMAT_RGB, FORMAT_RGBA } format;
-
- // Note: sRGB and 709 use the same colorspace primaries.
- enum { COLORSPACE_sRGB, COLORSPACE_REC_601_525, COLORSPACE_REC_601_625, COLORSPACE_REC_709 } color_space;
-
- // Note: Rec. 601 and 709 use the same gamma curve.
- enum { LINEAR_LIGHT, GAMMA_sRGB, GAMMA_REC_601, GAMMA_REC_709 } gamma_curve;
-};
-
-enum EffectId {
- // Mostly for internal use.
- GAMMA_CONVERSION = 0,
- RGB_PRIMARIES_CONVERSION,
-
- // Color.
- LIFT_GAMMA_GAIN,
-};
-
-class Effect {
-public:
- virtual bool needs_linear_light() { return true; }
- virtual bool needs_srgb_primaries() { return true; }
- virtual bool needs_many_samples() { return false; }
- virtual bool needs_mipmaps() { return false; }
- bool set_float(const std::string& key, float value);
- bool set_float_array(const std::string&, const float *values, size_t num_values);
-
-private:
- bool register_float(const std::string& key, float value);
- bool register_float_array(const std::string& key, float *values, size_t num_values);
-};
-
-class EffectChain {
-public:
- void set_size(unsigned width, unsigned height);
- void add_input(const ImageFormat &format);
- 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;
-};
-
GLhandleARB read_shader(const char* filename, GLenum type)
{
- static char buf[131072];
- FILE *fp = fopen(filename, "r");
- if (fp == NULL) {
- perror(filename);
- exit(1);
- }
-
- int len = fread(buf, 1, sizeof(buf), fp);
- fclose(fp);
+ std::string shader_src = read_file(filename);
GLhandleARB obj = glCreateShaderObjectARB(type);
- const GLchar* source[] = { buf };
- const GLint length[] = { len };
+ const GLchar* source[] = { shader_src.data() };
+ const GLint length[] = { shader_src.size() };
glShaderSource(obj, 1, source, length);
glCompileShader(obj);