2 #define _MOVIT_INPUT_H 1
7 #include "image_format.h"
11 // An input is a degenerate case of an effect; it represents the picture data
12 // that comes from the user. As such, it has zero “inputs” itself.
14 // An input is, like any other effect, required to be able to output a GLSL
15 // fragment giving a RGBA value (although that GLSL fragment will have zero
16 // inputs itself), and set the required OpenGL state on set_gl_state(),
17 // including possibly uploading the texture if so required.
18 class Input : public Effect {
20 virtual unsigned num_inputs() const { return 0; }
22 // Whether this input can deliver linear gamma directly if it's
23 // asked to. (If so, set the parameter “output_linear_gamma”
25 virtual bool can_output_linear_gamma() const = 0;
27 // Whether this input can supply mipmaps if asked to (by setting
28 // the "needs_mipmaps" integer parameter set to 1).
29 virtual bool can_supply_mipmaps() const { return true; }
31 virtual unsigned get_width() const = 0;
32 virtual unsigned get_height() const = 0;
33 virtual Colorspace get_color_space() const = 0;
34 virtual GammaCurve get_gamma_curve() const = 0;
39 #endif // !defined(_MOVIT_INPUT_H)