34 lines
1.6 KiB
C++
34 lines
1.6 KiB
C++
#include "inverteffect.h"
|
|
|
|
#include "ui/labelslider.h"
|
|
|
|
#include <QLabel>
|
|
#include <QGridLayout>
|
|
#include <QXmlStreamReader>
|
|
#include <QXmlStreamWriter>
|
|
#include <QXmlStreamAttributes>
|
|
|
|
InvertEffect::InvertEffect(Clip* c) : Effect(c, EFFECT_TYPE_VIDEO, VIDEO_INVERT_EFFECT), vert_shader(QOpenGLShader::Vertex), frag_shader(QOpenGLShader::Fragment) {
|
|
enable_opengl = true;
|
|
|
|
EffectRow* amount_row = add_row("Amount:");
|
|
amount_val = amount_row->add_field(EFFECT_FIELD_DOUBLE);
|
|
amount_val->set_double_minimum_value(0);
|
|
amount_val->set_double_maximum_value(100);
|
|
|
|
// set defaults
|
|
amount_val->set_double_default_value(100);
|
|
|
|
connect(amount_val, SIGNAL(changed()), this, SLOT(field_changed()));
|
|
}
|
|
|
|
void InvertEffect::process_gl(long p, QOpenGLShaderProgram& shader_prog, int* anchor_x, int* anchor_y) {
|
|
double value = amount_val->get_double_value(p)*0.01;
|
|
|
|
vert_shader.compileSourceCode("varying vec2 vTexCoord;\nvoid main() {\n\tvTexCoord = gl_MultiTexCoord0.xy;\n\tgl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n}");
|
|
frag_shader.compileSourceCode("uniform sampler2D myTexture;\nvarying vec2 vTexCoord;\nvoid main(void) {\n\tvec4 textureColor = texture2D(myTexture, vTexCoord);\n\tgl_FragColor = vec4(textureColor.r+((1.0-textureColor.r-textureColor.r)*" + QString::number(value, 'f', 2) + "), textureColor.g+((1.0-textureColor.g-textureColor.g)*" + QString::number(value, 'f', 2) + "), textureColor.b+((1.0-textureColor.b-textureColor.b)*" + QString::number(value, 'f', 2) + "), 1);\n}");
|
|
|
|
shader_prog.addShader(&vert_shader);
|
|
shader_prog.addShader(&frag_shader);
|
|
}
|