core_video/
opengl_texture.rs

1use core_foundation::{
2    base::{Boolean, CFTypeID, TCFType},
3    declare_TCFType, impl_CFTypeDescription, impl_TCFType,
4};
5
6use crate::{
7    buffer::TCVBuffer,
8    image_buffer::{CVImageBufferRef, TCVImageBuffer},
9    GLenum, GLuint,
10};
11
12pub type CVOpenGLTextureRef = CVImageBufferRef;
13
14extern "C" {
15    pub fn CVOpenGLTextureGetTypeID() -> CFTypeID;
16    pub fn CVOpenGLTextureRetain(texture: CVOpenGLTextureRef) -> CVOpenGLTextureRef;
17    pub fn CVOpenGLTextureRelease(texture: CVOpenGLTextureRef);
18    pub fn CVOpenGLTextureGetTarget(image: CVOpenGLTextureRef) -> GLenum;
19    pub fn CVOpenGLTextureGetName(image: CVOpenGLTextureRef) -> GLuint;
20    pub fn CVOpenGLTextureIsFlipped(image: CVOpenGLTextureRef) -> Boolean;
21    pub fn CVOpenGLTextureGetCleanTexCoords(
22        image: CVOpenGLTextureRef,
23        lowerLeft: *mut f32,
24        lowerRight: *mut f32,
25        upperRight: *mut f32,
26        upperLeft: *mut f32,
27    );
28}
29
30declare_TCFType!(CVOpenGLTexture, CVOpenGLTextureRef);
31impl_TCFType!(CVOpenGLTexture, CVOpenGLTextureRef, CVOpenGLTextureGetTypeID);
32impl_CFTypeDescription!(CVOpenGLTexture);
33
34impl TCVBuffer for CVOpenGLTexture {}
35impl TCVImageBuffer for CVOpenGLTexture {}
36
37impl CVOpenGLTexture {
38    #[inline]
39    pub fn get_target(&self) -> GLenum {
40        unsafe { CVOpenGLTextureGetTarget(self.as_concrete_TypeRef()) }
41    }
42
43    #[inline]
44    pub fn get_name(&self) -> GLuint {
45        unsafe { CVOpenGLTextureGetName(self.as_concrete_TypeRef()) }
46    }
47
48    #[inline]
49    pub fn is_flipped(&self) -> bool {
50        unsafe { CVOpenGLTextureIsFlipped(self.as_concrete_TypeRef()) != 0 }
51    }
52
53    #[inline]
54    pub fn get_clean_tex_coords(&self) -> (f32, f32, f32, f32) {
55        let mut lower_left = 0.0;
56        let mut lower_right = 0.0;
57        let mut upper_right = 0.0;
58        let mut upper_left = 0.0;
59        unsafe {
60            CVOpenGLTextureGetCleanTexCoords(self.as_concrete_TypeRef(), &mut lower_left, &mut lower_right, &mut upper_right, &mut upper_left);
61        }
62        (lower_left, lower_right, upper_right, upper_left)
63    }
64}
core_video/opengl_texture.rs

core_video/
opengl_texture.rs
