include/color_conversion.h


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#ifndef GSR_COLOR_CONVERSION_H
#define GSR_COLOR_CONVERSION_H

#include "shader.h"
#include "vec2.h"

typedef enum {
    GSR_SOURCE_COLOR_RGB
} gsr_source_color;

typedef enum {
    GSR_DESTINATION_COLOR_BGR,
    GSR_DESTINATION_COLOR_NV12 /* YUV420, BT709, limited */
} gsr_destination_color;

typedef struct {
    gsr_egl *egl;

    gsr_source_color source_color;
    gsr_destination_color destination_color;

    unsigned int destination_textures[2];
    int num_destination_textures;
} gsr_color_conversion_params;

typedef struct {
    gsr_color_conversion_params params;
    int rotation_uniforms[2];
    gsr_shader shaders[2];

    unsigned int framebuffers[2];

    unsigned int vertex_array_object_id;
    unsigned int vertex_buffer_object_id;
} gsr_color_conversion;

int gsr_color_conversion_init(gsr_color_conversion *self, const gsr_color_conversion_params *params);
void gsr_color_conversion_deinit(gsr_color_conversion *self);

int gsr_color_conversion_draw(gsr_color_conversion *self, unsigned int texture_id, vec2i source_pos, vec2i source_size, vec2i texture_pos, vec2i texture_size, float rotation, bool external_texture);

#endif /* GSR_COLOR_CONVERSION_H */