// this data, you must either call set_pixel_data() again (using the same pointer
// is fine), or invalidate_pixel_data(). Otherwise, the texture won't be re-uploaded
// on subsequent frames.
- void set_pixel_data(unsigned channel, const unsigned char *pixel_data)
+ //
+ // The data can either be a regular pointer (if pbo==0), or a byte offset
+ // into a PBO. The latter will allow you to start uploading the texture data
+ // asynchronously to the GPU, if you have any CPU-intensive work between the
+ // call to set_pixel_data() and the actual rendering. In either case,
+ // the pointer (and PBO, if set) has to be valid at the time of the render call.
+ void set_pixel_data(unsigned channel, const unsigned char *pixel_data, GLuint pbo = 0)
{
assert(channel >= 0 && channel < 3);
this->pixel_data[channel] = pixel_data;
+ this->pbos[channel] = pbo;
invalidate_pixel_data();
}
void set_pitch(unsigned channel, unsigned pitch) {
assert(channel >= 0 && channel < 3);
- if (this->pitch[channel] != pitch) {
- this->pitch[channel] = pitch;
- needs_pbo_recreate = true;
- }
+ this->pitch[channel] = pitch;
}
private:
ImageFormat image_format;
YCbCrFormat ycbcr_format;
GLuint pbos[3], texture_num[3];
- bool needs_update, needs_pbo_recreate, finalized;
+ bool needs_update, finalized;
int needs_mipmaps;