hvirtual/plugins/gamma/aggregated.h File Reference

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Defines
#define	GAMMA_COMPILE(shader_stack, current_shader, aggregate_interpolation)
#define	GAMMA_UNIFORMS(frag)
Variables
static char *	gamma_get_pixel1
static char *	gamma_get_pixel2
static char *	gamma_pow_frag
static char *	gamma_rgb_frag
static char *	gamma_yuv_frag

---

Define Documentation

#define GAMMA_COMPILE	(	shader_stack,
		current_shader,
		aggregate_interpolation		)

Value:

{ \
        if(aggregate_interpolation) \
                shader_stack[current_shader++] = gamma_get_pixel1; \
        else \
                shader_stack[current_shader++] = gamma_get_pixel2; \
 \
        switch(get_output()->get_color_model()) \
        { \
                case BC_YUV888: \
                case BC_YUVA8888: \
                        shader_stack[current_shader++] = gamma_pow_frag; \
                        shader_stack[current_shader++] = gamma_yuv_frag; \
                        break; \
                default: \
                        shader_stack[current_shader++] = gamma_pow_frag; \
                        shader_stack[current_shader++] = gamma_rgb_frag; \
                        break; \
        } \
}

Definition at line 54 of file aggregated.h.

Referenced by HistogramMain::handle_opengl(), GammaMain::handle_opengl(), and ColorBalanceMain::handle_opengl().

#define GAMMA_UNIFORMS

(

frag

)

Value:

{ \
        float max = get_output()->get_params()->get("GAMMA_MAX", (float)1); \
        float gamma = get_output()->get_params()->get("GAMMA_GAMMA", (float)1) - 1.0; \
        float scale = 1.0 / max; \
        glUniform1f(glGetUniformLocation(frag, "gamma_scale"), scale); \
        glUniform1f(glGetUniformLocation(frag, "gamma_gamma"), gamma); \
        glUniform1f(glGetUniformLocation(frag, "gamma_max"), max); \
printf("GAMMA_UNIFORMS %f %f\n", max, gamma); \
}

Definition at line 75 of file aggregated.h.

Referenced by HistogramMain::handle_opengl(), GammaMain::handle_opengl(), and ColorBalanceMain::handle_opengl().

---

Variable Documentation

char* gamma_get_pixel1 [static]

Initial value:

        "vec4 gamma_get_pixel()\n"
        "{\n"
        "       return gl_FragColor;\n"
        "}\n"

Definition at line 7 of file aggregated.h.

char* gamma_get_pixel2 [static]

Initial value:

        "uniform sampler2D tex;\n"
        "vec4 gamma_get_pixel()\n"
        "{\n"
        "       return texture2D(tex, gl_TexCoord[0].st);\n"
        "}\n"

Definition at line 13 of file aggregated.h.

char* gamma_pow_frag [static]

Initial value:

 
        "float my_pow(float x, float y, float max)\n"
        "{\n"
        "       return (x > 0.0) ? pow(x * 2.0 / max, y) : 0.0;\n"
        "}\n"

Definition at line 20 of file aggregated.h.

char* gamma_rgb_frag [static]

Initial value:

 
        "uniform float gamma_scale;\n"
        "uniform float gamma_gamma;\n"
        "uniform float gamma_max;\n"
        "void main()\n"
        "{\n"
        "       vec4 pixel = gamma_get_pixel();\n"
        "       pixel.r = pixel.r * gamma_scale * my_pow(pixel.r, gamma_gamma, gamma_max);\n"
        "       pixel.g = pixel.g * gamma_scale * my_pow(pixel.g, gamma_gamma, gamma_max);\n"
        "       pixel.b = pixel.b * gamma_scale * my_pow(pixel.b, gamma_gamma, gamma_max);\n"
        "       gl_FragColor = pixel;\n"
        "}\n"

Definition at line 26 of file aggregated.h.

char* gamma_yuv_frag [static]

Initial value:

 
        "uniform float gamma_scale;\n"
        "uniform float gamma_gamma;\n"
        "uniform float gamma_max;\n"
        "void main()\n"
        "{\n"
        "       vec4 pixel = gamma_get_pixel();\n"

        "       pixel.r = pixel.r * gamma_scale * my_pow(pixel.r, gamma_gamma, gamma_max);\n"
        "       pixel.g = pixel.g * gamma_scale * my_pow(pixel.g, gamma_gamma, gamma_max);\n"
        "       pixel.b = pixel.b * gamma_scale * my_pow(pixel.b, gamma_gamma, gamma_max);\n"

        "       gl_FragColor = pixel;\n"
        "}\n"

Definition at line 39 of file aggregated.h.