X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcolorcurve.cpp;h=54fbc767bb77a75ce19356d446a7c38d13526b52;hp=6b456dfe31bbc55a21d0148459c43a5d800e8f42;hb=HEAD;hpb=f07dffb230b53efcf5e2706493b065f020077fdc

diff --git a/source/colorcurve.cpp b/source/colorcurve.cpp
deleted file mode 100644
index 6b456dfe..00000000
--- a/source/colorcurve.cpp
+++ /dev/null
@@ -1,114 +0,0 @@
-#include <cmath>
-#include "color.h"
-#include "colorcurve.h"
-#include "mesh.h"
-#include "shader.h"
-#include "texture2d.h"
-
-using namespace std;
-
-namespace {
-
-static const char fragment_src[] =
-	"uniform sampler2D texture;\n"
-	"uniform sampler1D curve;\n"
-	"uniform float peak;\n"
-	"uniform float brightness;\n"
-	"varying vec2 texcoord;\n"
-	"void main()\n"
-	"{\n"
-	"	vec4 sample = texture2D(texture, texcoord);\n"
-	"	float maxc = max(sample.r, max(sample.g, sample.b));\n"
-	"	if(maxc>1.0-peak)\n"
-	"	{\n"
-	"		vec3 saturated = sample.rgb/maxc;\n"
-	"		if(maxc>1.0+peak)\n"
-	"		{\n"
-	"			sample.rgb = mix(vec3(1.0), saturated, 1.0/pow(brightness, maxc-1.0-peak));\n"
-	"		}\n"
-	"		else\n"
-	"		{\n"
-	"			float x = (1.0+peak-maxc)/(2.0*peak);\n"
-	"			sample.rgb = saturated.rgb*(1.0-peak+(1.0-x*x)*peak);\n"
-	"		}\n"
-	"	}\n"
-	"	gl_FragColor = vec4(texture1D(curve, sample.r).r, texture1D(curve, sample.g).r, texture1D(curve, sample.b).r, sample.a);\n"
-	"}";
-
-}
-
-namespace Msp {
-namespace GL {
-
-ColorCurve::ColorCurve():
-	quad(get_fullscreen_quad())
-{
-	shprog.attach_shader(get_fullscreen_vertex_shader());
-	shprog.attach_shader_owned(new FragmentShader(fragment_src));
-	shprog.link();
-
-	shdata.uniform("texture", 0);
-	shdata.uniform("curve", 1);
-
-	curve.storage(LUMINANCE, 256);
-	curve.set_min_filter(LINEAR);
-	curve.set_wrap(CLAMP_TO_EDGE);
-
-	set_peak(0.2);
-	set_brightness(1.5);
-	set_linear();
-}
-
-void ColorCurve::set_peak(float p)
-{
-	if(p<0 || p>1)
-		throw invalid_argument("ColorCurve::set_peak");
-	shdata.uniform("peak", p);
-}
-
-void ColorCurve::set_brightness(float b)
-{
-	if(b<1)
-		throw invalid_argument("ColorCurve::set_brightness");
-	shdata.uniform("brightness", b);
-}
-
-void ColorCurve::set_gamma(float g)
-{
-	if(g<0.1 || g>10)
-		throw invalid_argument("ColorCurve::set_gamma");
-
-	unsigned char curve_data[256];
-	for(unsigned i=0; i<256; ++i)
-		curve_data[i] = pow(i/255.0f, 1/g)*255+0.5f;
-	curve.image(0, LUMINANCE, UNSIGNED_BYTE, curve_data);
-}
-
-void ColorCurve::set_srgb()
-{
-	unsigned char curve_data[256];
-	curve_data[0] = 0;
-	for(unsigned i=1; i<256; ++i)
-		curve_data[i] = to_srgb(i/255.0f)*255+0.5f;
-	curve.image(0, LUMINANCE, UNSIGNED_BYTE, curve_data);
-}
-
-void ColorCurve::set_linear()
-{
-	unsigned char curve_data[256];
-	for(unsigned i=0; i<256; ++i)
-		curve_data[i] = i;
-	curve.image(0, LUMINANCE, UNSIGNED_BYTE, curve_data);
-}
-
-void ColorCurve::render(const Texture2D &color_buf, const Texture2D &)
-{
-	Bind _bind_shader(shprog);
-	shdata.apply();
-	Bind _bind_tex(color_buf);
-	Bind _bind_curve(curve, 1);
-	quad.draw();
-}
-
-} // namespace GL
-} // namespace Msp