score::gfx::PackedRectDecoder Struct Reference
Inheritance diagram for score::gfx::PackedRectDecoder:
Public Member Functions | |
PackedRectDecoder (QRhiTexture::Format fmt, int bytes_per_pixel, Video::ImageFormat &d, QString f="") | |
std::pair< QShader, QShader > | init (RenderList &r) override |
Initialize a GPUVideoDecoder. More... | |
void | exec (RenderList &, QRhiResourceUpdateBatch &res, AVFrame &frame) override |
Decode and upload a video frame to the GPU. | |
void | setPixels (QRhiResourceUpdateBatch &res, uint8_t *pixels, int stride) const noexcept |
Public Member Functions inherited from score::gfx::GPUVideoDecoder | |
void | release (RenderList &) |
This method will release all the created samplers and textures. | |
Public Attributes | |
QRhiTexture::Format | format |
int | bytes_per_pixel {} |
Video::ImageFormat & | decoder |
QString | filter |
Public Attributes inherited from score::gfx::GPUVideoDecoder | |
std::vector< Sampler > | samplers |
Static Public Attributes | |
static constexpr const auto | rgb_filter |
static constexpr const char * | vertex |
Additional Inherited Members | |
Static Public Member Functions inherited from score::gfx::GPUVideoDecoder | |
static QRhiTextureSubresourceUploadDescription | createTextureUpload (uint8_t *pixels, int w, int h, int bytesPerPixel, int stride) |
Utility method to create a QRhiTextureSubresourceUploadDescription. More... | |
static QString | vertexShader () noexcept |
Member Function Documentation
◆ init()
|
inlineoverridevirtual |
Initialize a GPUVideoDecoder.
This method must :
- Create samplers and textures for the video format.
- Create shaders that will render the data put into these textures.
It returns a {vertex, fragment} shader pair.
Implements score::gfx::GPUVideoDecoder.
Member Data Documentation
◆ rgb_filter
|
staticconstexpr |
Initial value:
= R"_(#version 450
)_" SCORE_GFX_VIDEO_UNIFORMS R"_(
layout(binding=3) uniform sampler2DRect y_tex;
layout(location = 0) in vec2 v_texcoord;
layout(location = 0) out vec4 fragColor;
vec4 processTexture(vec4 tex) {
vec4 processed = tex;
{ %1 }
return processed;
}
void main ()
{
fragColor = processTexture(texture(y_tex, v_texcoord));
})_"
◆ vertex
|
staticconstexpr |
Initial value:
= R"_(#version 450
layout(location = 0) in vec2 position;
layout(location = 1) in vec2 texcoord;
layout(location = 0) out vec2 v_texcoord;
)_" SCORE_GFX_VIDEO_UNIFORMS R"_(
out gl_PerVertex { vec4 gl_Position; };
void main()
{
v_texcoord = texcoord * mat.texSz.xy;
gl_Position = renderer.clipSpaceCorrMatrix * vec4(position.x * mat.scale.x, position.y * mat.scale.y, 0.0, 1.);
}
)_"
The documentation for this struct was generated from the following file: