2 #define _FLAT_INPUT_H 1
6 // A FlatInput is the normal, “classic” case of an input, where everything
7 // comes from a single 2D array with chunky pixels.
8 class FlatInput : public Input {
10 FlatInput(ImageFormat format, MovitPixelFormat pixel_format, GLenum type, unsigned width, unsigned height);
12 virtual std::string effect_type_id() const { return "FlatInput"; }
14 // Create the texture itself. We cannot do this in the constructor,
15 // because we don't necessarily know all the settings (sRGB texture,
16 // mipmap generation) at that point.
19 // TODO: Check that we actually have the required extension.
20 virtual bool can_output_linear_gamma() const {
21 return (type == GL_UNSIGNED_BYTE &&
22 (image_format.gamma_curve == GAMMA_LINEAR ||
23 image_format.gamma_curve == GAMMA_sRGB));
26 std::string output_fragment_shader();
28 // Uploads the texture if it has changed since last time.
29 void set_gl_state(GLuint glsl_program_num, const std::string& prefix, unsigned *sampler_num);
31 unsigned get_width() const { return width; }
32 unsigned get_height() const { return height; }
33 ColorSpace get_color_space() const { return image_format.color_space; }
34 GammaCurve get_gamma_curve() const { return image_format.gamma_curve; }
36 // Tells the input where to fetch the actual pixel data. Note that if you change
37 // this data, you must either call set_pixel_data() again (using the same pointer
38 // is fine), or invalidate_pixel_data(). Otherwise, the texture won't be re-uploaded
39 // on subsequent frames.
40 void set_pixel_data(const unsigned char *pixel_data)
42 assert(this->type == GL_UNSIGNED_BYTE);
43 this->pixel_data = pixel_data;
44 invalidate_pixel_data();
47 void set_pixel_data(const float *pixel_data)
49 assert(this->type == GL_FLOAT);
50 this->pixel_data = pixel_data;
51 invalidate_pixel_data();
54 void invalidate_pixel_data()
59 void set_pitch(unsigned pitch) {
65 ImageFormat image_format;
66 MovitPixelFormat pixel_format;
68 GLuint pbo, texture_num;
69 bool needs_update, finalized;
70 int output_linear_gamma, needs_mipmaps;
71 unsigned width, height, pitch, bytes_per_pixel;
72 const void *pixel_data;
75 #endif // !defined(_FLAT_INPUT_H)