EffectChainTester::EffectChainTester(const float *data, unsigned width, unsigned height, ColorSpace color_space, GammaCurve gamma_curve)
: chain(width, height), width(width), height(height)
+{
+ add_input(data, color_space, gamma_curve);
+
+ glGenTextures(1, &texnum);
+ check_error();
+ glBindTexture(GL_TEXTURE_2D, texnum);
+ check_error();
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ check_error();
+
+ glGenFramebuffers(1, &fbo);
+ check_error();
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+ check_error();
+ glFramebufferTexture2D(
+ GL_FRAMEBUFFER,
+ GL_COLOR_ATTACHMENT0,
+ GL_TEXTURE_2D,
+ texnum,
+ 0);
+ check_error();
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+ check_error();
+}
+
+Input *EffectChainTester::add_input(const float *data, ColorSpace color_space, GammaCurve gamma_curve)
{
ImageFormat format;
format.color_space = color_space;
FlatInput *input = new FlatInput(format, FORMAT_GRAYSCALE, GL_FLOAT, width, height);
input->set_pixel_data(data);
chain.add_input(input);
+ return input;
}
void EffectChainTester::run(float *out_data, ColorSpace color_space, GammaCurve gamma_curve)
chain.add_output(format);
chain.finalize();
- glViewport(0, 0, width, height);
- chain.render_to_screen();
+ chain.render_to_fbo(fbo, width, height);
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glReadPixels(0, 0, width, height, GL_RED, GL_FLOAT, out_data);
// Flip upside-down to compensate for different origin.