+++ /dev/null
-#define GL_GLEXT_PROTOTYPES 1
-#define NO_SDL_GLEXT 1
-
-#define WIDTH 1280
-#define HEIGHT 720
-
-#include <string.h>
-#include <math.h>
-#include <time.h>
-#include <sys/time.h>
-#include <assert.h>
-
-#include <string>
-#include <vector>
-#include <map>
-
-#include <SDL/SDL.h>
-#include <SDL/SDL_opengl.h>
-#include <SDL/SDL_image.h>
-
-#include "effect.h"
-#include "effect_chain.h"
-#include "util.h"
-#include "opengl.h"
-#include "widgets.h"
-
-#include "flat_input.h"
-#include "lift_gamma_gain_effect.h"
-#include "saturation_effect.h"
-#include "diffusion_effect.h"
-
-unsigned char result[WIDTH * HEIGHT * 4];
-
-float lift_theta = 0.0f, lift_rad = 0.0f, lift_v = 0.0f;
-float gamma_theta = 0.0f, gamma_rad = 0.0f, gamma_v = 0.5f;
-float gain_theta = 0.0f, gain_rad = 0.0f, gain_v = 0.25f;
-float saturation = 1.0f;
-
-//float radius = 0.3f;
-// float inner_radius = 0.3f;
-float blur_radius = 20.0f;
-float blurred_mix_amount = 0.5f;
-
-void update_hsv(Effect *lift_gamma_gain_effect, Effect *saturation_effect)
-{
- RGBTriplet lift(0.0f, 0.0f, 0.0f);
- RGBTriplet gamma(1.0f, 1.0f, 1.0f);
- RGBTriplet gain(1.0f, 1.0f, 1.0f);
-
- hsv2rgb_normalized(lift_theta, lift_rad, lift_v, &lift.r, &lift.g, &lift.b);
- hsv2rgb_normalized(gamma_theta, gamma_rad, gamma_v * 2.0f, &gamma.r, &gamma.g, &gamma.b);
- hsv2rgb_normalized(gain_theta, gain_rad, gain_v * 4.0f, &gain.r, &gain.g, &gain.b);
-
- bool ok = lift_gamma_gain_effect->set_vec3("lift", (float *)&lift);
- ok = ok && lift_gamma_gain_effect->set_vec3("gamma", (float *)&gamma);
- ok = ok && lift_gamma_gain_effect->set_vec3("gain", (float *)&gain);
- assert(ok);
-
- if (saturation < 0.0) {
- saturation = 0.0;
- }
- ok = saturation_effect->set_float("saturation", saturation);
- assert(ok);
-}
-
-void mouse(int x, int y)
-{
- float xf = (x / (float)WIDTH) * 16.0f / 9.0f;
- float yf = (HEIGHT - y) / (float)HEIGHT;
-
- if (yf < 0.2f) {
- read_colorwheel(xf, yf, &lift_rad, &lift_theta, &lift_v);
- } else if (yf >= 0.2f && yf < 0.4f) {
- read_colorwheel(xf, yf - 0.2f, &gamma_rad, &gamma_theta, &gamma_v);
- } else if (yf >= 0.4f && yf < 0.6f) {
- read_colorwheel(xf, yf - 0.4f, &gain_rad, &gain_theta, &gain_v);
- } else if (yf >= 0.6f && yf < 0.62f && xf < 0.2f) {
- saturation = (xf / 0.2f) * 4.0f;
-#if 0
- } else if (yf >= 0.65f && yf < 0.67f && xf < 0.2f) {
- radius = (xf / 0.2f);
- } else if (yf >= 0.70f && yf < 0.72f && xf < 0.2f) {
- inner_radius = (xf / 0.2f);
-#endif
- } else if (yf >= 0.75f && yf < 0.77f && xf < 0.2f) {
- blur_radius = (xf / 0.2f) * 100.0f;
- } else if (yf >= 0.80f && yf < 0.82f && xf < 0.2f) {
- blurred_mix_amount = (xf / 0.2f);
- }
-}
-
-unsigned char *load_image(const char *filename, unsigned *w, unsigned *h)
-{
- SDL_Surface *img = IMG_Load(filename);
- if (img == NULL) {
- fprintf(stderr, "Load of '%s' failed\n", filename);
- exit(1);
- }
-
- SDL_PixelFormat rgba_fmt;
- rgba_fmt.palette = NULL;
- rgba_fmt.BitsPerPixel = 32;
- rgba_fmt.BytesPerPixel = 8;
- rgba_fmt.Rloss = rgba_fmt.Gloss = rgba_fmt.Bloss = rgba_fmt.Aloss = 0;
-
- // NOTE: Assumes little endian.
- rgba_fmt.Rmask = 0x00ff0000;
- rgba_fmt.Gmask = 0x0000ff00;
- rgba_fmt.Bmask = 0x000000ff;
- rgba_fmt.Amask = 0xff000000;
-
- rgba_fmt.Rshift = 16;
- rgba_fmt.Gshift = 8;
- rgba_fmt.Bshift = 0;
- rgba_fmt.Ashift = 24;
-
- rgba_fmt.colorkey = 0;
- rgba_fmt.alpha = 255;
-
- SDL_Surface *converted = SDL_ConvertSurface(img, &rgba_fmt, SDL_SWSURFACE);
-
- *w = img->w;
- *h = img->h;
-
- SDL_FreeSurface(img);
-
- return (unsigned char *)converted->pixels;
-}
-
-void write_ppm(const char *filename, unsigned char *screenbuf)
-{
- FILE *fp = fopen(filename, "w");
- fprintf(fp, "P6\n%d %d\n255\n", WIDTH, HEIGHT);
- for (unsigned y = 0; y < HEIGHT; ++y) {
- unsigned char *srcptr = screenbuf + ((HEIGHT - y - 1) * WIDTH) * 4;
- for (unsigned x = 0; x < WIDTH; ++x) {
- fputc(srcptr[x * 4 + 2], fp);
- fputc(srcptr[x * 4 + 1], fp);
- fputc(srcptr[x * 4 + 0], fp);
- }
- }
- fclose(fp);
-}
-
-int main(int argc, char **argv)
-{
- int quit = 0;
-
- SDL_Init(SDL_INIT_EVERYTHING);
- SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 0);
- SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 0);
- SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
- SDL_SetVideoMode(WIDTH, HEIGHT, 0, SDL_OPENGL);
- SDL_WM_SetCaption("OpenGL window", NULL);
-
- // geez
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- glPixelStorei(GL_PACK_ALIGNMENT, 1);
-
- unsigned img_w, img_h;
- unsigned char *src_img = load_image("blg_wheels_woman_1.jpg", &img_w, &img_h);
-
- EffectChain chain(WIDTH, HEIGHT);
-
- ImageFormat inout_format;
- inout_format.color_space = COLORSPACE_sRGB;
- inout_format.gamma_curve = GAMMA_sRGB;
-
- FlatInput *input = new FlatInput(inout_format, FORMAT_BGRA, GL_UNSIGNED_BYTE, img_w, img_h);
- chain.add_input(input);
- Effect *lift_gamma_gain_effect = chain.add_effect(new LiftGammaGainEffect());
- Effect *saturation_effect = chain.add_effect(new SaturationEffect());
- Effect *diffusion_effect = chain.add_effect(new DiffusionEffect());
- //Effect *vignette_effect = chain.add_effect(new VignetteEffect());
- //Effect *sandbox_effect = chain.add_effect(new SandboxEffect());
- //sandbox_effect->set_float("parm", 42.0f);
- //chain.add_effect(new MirrorEffect());
- chain.add_output(inout_format);
- chain.finalize();
-
- // generate a PBO to hold the data we read back with glReadPixels()
- // (Intel/DRI goes into a slow path if we don't read to PBO)
- GLuint pbo;
- glGenBuffers(1, &pbo);
- glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, pbo);
- glBufferData(GL_PIXEL_PACK_BUFFER_ARB, WIDTH * HEIGHT * 4, NULL, GL_STREAM_READ);
-
- make_hsv_wheel_texture();
-
- int frame = 0, screenshot = 0;
-#if _POSIX_C_SOURCE >= 199309L
- struct timespec start, now;
- clock_gettime(CLOCK_MONOTONIC, &start);
-#else
- struct timeval start, now;
- gettimeofday(&start, NULL);
-#endif
-
- while (!quit) {
- SDL_Event event;
- while (SDL_PollEvent(&event)) {
- if (event.type == SDL_QUIT) {
- quit = 1;
- } else if (event.type == SDL_KEYDOWN && event.key.keysym.sym == SDLK_ESCAPE) {
- quit = 1;
- } else if (event.type == SDL_KEYDOWN && event.key.keysym.sym == SDLK_F1) {
- screenshot = 1;
- } else if (event.type == SDL_MOUSEBUTTONDOWN && event.button.button == SDL_BUTTON_LEFT) {
- mouse(event.button.x, event.button.y);
- } else if (event.type == SDL_MOUSEMOTION && (event.motion.state & SDL_BUTTON(1))) {
- mouse(event.motion.x, event.motion.y);
- }
- }
-
- ++frame;
-
- update_hsv(lift_gamma_gain_effect, saturation_effect);
- //vignette_effect->set_float("radius", radius);
- //vignette_effect->set_float("inner_radius", inner_radius);
- //vignette_effect->set_vec2("center", (float[]){ 0.7f, 0.5f });
-
- diffusion_effect->set_float("radius", blur_radius);
- diffusion_effect->set_float("blurred_mix_amount", blurred_mix_amount);
-
- input->set_pixel_data(src_img);
- chain.render_to_screen();
-
- glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, pbo);
- check_error();
- glReadPixels(0, 0, WIDTH, HEIGHT, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, BUFFER_OFFSET(0));
- check_error();
- glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, 0);
- check_error();
-
- glLoadIdentity();
- draw_hsv_wheel(0.0f, lift_rad, lift_theta, lift_v);
- draw_hsv_wheel(0.2f, gamma_rad, gamma_theta, gamma_v);
- draw_hsv_wheel(0.4f, gain_rad, gain_theta, gain_v);
- draw_saturation_bar(0.6f, saturation / 4.0f);
-#if 0
- draw_saturation_bar(0.65f, radius);
- draw_saturation_bar(0.70f, inner_radius);
-#endif
- draw_saturation_bar(0.75f, blur_radius / 100.0f);
- draw_saturation_bar(0.80f, blurred_mix_amount);
-
- SDL_GL_SwapBuffers();
- check_error();
-
- glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, pbo);
- check_error();
- unsigned char *screenbuf = (unsigned char *)glMapBuffer(GL_PIXEL_PACK_BUFFER_ARB, GL_READ_ONLY);
- check_error();
- if (screenshot) {
- char filename[256];
- sprintf(filename, "frame%05d.ppm", frame);
- write_ppm(filename, screenbuf);
- printf("Screenshot: %s\n", filename);
- screenshot = 0;
- }
- glUnmapBuffer(GL_PIXEL_PACK_BUFFER_ARB);
- check_error();
- glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, 0);
- check_error();
-
-#if 1
-#if _POSIX_C_SOURCE >= 199309L
- clock_gettime(CLOCK_MONOTONIC, &now);
- double elapsed = now.tv_sec - start.tv_sec +
- 1e-9 * (now.tv_nsec - start.tv_nsec);
-#else
- gettimeofday(&now, NULL);
- double elapsed = now.tv_sec - start.tv_sec +
- 1e-6 * (now.tv_usec - start.tv_usec);
-#endif
- printf("%d frames in %.3f seconds = %.1f fps (%.1f ms/frame)\n",
- frame, elapsed, frame / elapsed,
- 1e3 * elapsed / frame);
-#endif
- }
- return 0;
-}
projects / movit / blobdiff