X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=main.cpp;h=b41c9ed0789f219d8eba163457e0abe61098cda9;hp=17cbeca9f6524aca66f7e2c4eb31575ca074951f;hb=6eb839737216564bcaf4645b7ebf6ea9efc2da09;hpb=b5e3174594efe9a920621a68d3b28f5e44676d03

diff --git a/main.cpp b/main.cpp
index 17cbeca..b41c9ed 100644
--- a/main.cpp
+++ b/main.cpp
@@ -35,6 +35,7 @@ float saturation = 1.0f;
 
 float radius = 0.3f;
 float inner_radius = 0.3f;
+float blur_radius = 3.0f;
 	
 void update_hsv(Effect *lift_gamma_gain_effect, Effect *saturation_effect)
 {
@@ -75,6 +76,8 @@ void mouse(int x, int y)
 		radius = (xf / 0.2f);
 	} else if (yf >= 0.70f && yf < 0.72f && xf < 0.2f) {
 		inner_radius = (xf / 0.2f);
+	} else if (yf >= 0.75f && yf < 0.77f && xf < 0.2f) {
+		blur_radius = (xf / 0.2f) * 100.0f;
 	}
 }
 
@@ -86,44 +89,34 @@ unsigned char *load_image(const char *filename, unsigned *w, unsigned *h)
 		exit(1);
 	}
 
-	// Convert to RGB.
-	SDL_PixelFormat *fmt = img->format;
-	SDL_LockSurface(img);
-	unsigned char *src_pixels = (unsigned char *)img->pixels;
-	unsigned char *dst_pixels = (unsigned char *)malloc(img->w * img->h * 4);
-	for (int i = 0; i < img->w * img->h; ++i) {
-		unsigned char r, g, b;
-		unsigned int temp;
-		unsigned int pixel = *(unsigned int *)(src_pixels + i * fmt->BytesPerPixel);
-
-		temp = pixel & fmt->Rmask;
-		temp = temp >> fmt->Rshift;
-		temp = temp << fmt->Rloss;
-		r = temp;
-
-		temp = pixel & fmt->Gmask;
-		temp = temp >> fmt->Gshift;
-		temp = temp << fmt->Gloss;
-		g = temp;
-
-		temp = pixel & fmt->Bmask;
-		temp = temp >> fmt->Bshift;
-		temp = temp << fmt->Bloss;
-		b = temp;
-
-		dst_pixels[i * 4 + 0] = b;
-		dst_pixels[i * 4 + 1] = g;
-		dst_pixels[i * 4 + 2] = r;
-		dst_pixels[i * 4 + 3] = 255;
-	}
-	SDL_UnlockSurface(img);
+	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 dst_pixels;
+	return (unsigned char *)converted->pixels;
 }
 
 void write_ppm(const char *filename, unsigned char *screenbuf)
@@ -157,7 +150,7 @@ int main(int argc, char **argv)
 	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);
+	unsigned char *src_img = load_image("test.jpg", &img_w, &img_h);
 
 	EffectChain chain(WIDTH, HEIGHT);
 
@@ -171,14 +164,12 @@ int main(int argc, char **argv)
 	Effect *saturation_effect = chain.add_effect(EFFECT_SATURATION);
 	Effect *blur_effect = chain.add_effect(EFFECT_BLUR);
 	Effect *vignette_effect = chain.add_effect(EFFECT_VIGNETTE);
+	//Effect *sandbox_effect = chain.add_effect(EFFECT_SANDBOX);
+	//sandbox_effect->set_float("parm", 42.0f);
 	//chain.add_effect(EFFECT_MIRROR);
 	chain.add_output(inout_format);
 	chain.finalize();
 
-	//glGenerateMipmap(GL_TEXTURE_2D);
-	//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 4);
-	//check_error();
-
 	// generate a PDO to hold the data we read back with glReadPixels()
 	// (Intel/DRI goes into a slow path if we don't read to PDO)
 	glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, 1);
@@ -217,6 +208,9 @@ int main(int argc, char **argv)
 		vignette_effect->set_float("radius", radius);
 		vignette_effect->set_float("inner_radius", inner_radius);
 		//vignette_effect->set_vec2("center", (float[]){ 0.7f, 0.5f });
+
+		blur_effect->set_float("radius", blur_radius);
+
 		chain.render_to_screen(src_img);
 		
 		glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, 1);
@@ -233,6 +227,7 @@ int main(int argc, char **argv)
 		draw_saturation_bar(0.6f, saturation / 4.0f);
 		draw_saturation_bar(0.65f, radius);
 		draw_saturation_bar(0.70f, inner_radius);
+		draw_saturation_bar(0.75f, blur_radius / 100.0f);
 
 		SDL_GL_SwapBuffers();
 		check_error();