diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2020-10-12 22:02:10 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2020-11-07 19:27:29 +0200 |
| commit | 3badc5c4bea38cd362707ec3da25881f30113fac (patch) | |
| tree | 565930653c92e265bb2dd894cb3cfd4a6c2704d6 | |
| parent | 819f6172ea73cfc1be80d6ade11819e981f0409d (diff) | |
qcam: viewfinder_gl: Store textures in an array
In preparation for RGB formats support, store the three Y, U and V
textures in an array. This makes the code more generic, and will avoid
referring to an RGB texture as textureY_.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
| -rw-r--r-- | src/qcam/viewfinder_gl.cpp | 37 | ||||
| -rw-r--r-- | src/qcam/viewfinder_gl.h | 9 |
2 files changed, 22 insertions, 24 deletions
diff --git a/src/qcam/viewfinder_gl.cpp b/src/qcam/viewfinder_gl.cpp index e6625cac..cbc13655 100644 --- a/src/qcam/viewfinder_gl.cpp +++ b/src/qcam/viewfinder_gl.cpp @@ -33,10 +33,7 @@ static const QList<libcamera::PixelFormat> supportedFormats{ ViewFinderGL::ViewFinderGL(QWidget *parent) : QOpenGLWidget(parent), buffer_(nullptr), data_(nullptr), - vertexBuffer_(QOpenGLBuffer::VertexBuffer), - textureU_(QOpenGLTexture::Target2D), - textureV_(QOpenGLTexture::Target2D), - textureY_(QOpenGLTexture::Target2D) + vertexBuffer_(QOpenGLBuffer::VertexBuffer) { } @@ -263,14 +260,14 @@ bool ViewFinderGL::createFragmentShader() textureUniformV_ = shaderProgram_.uniformLocation("tex_v"); textureUniformStepX_ = shaderProgram_.uniformLocation("tex_stepx"); - if (!textureY_.isCreated()) - textureY_.create(); + /* Create the textures. */ + for (std::unique_ptr<QOpenGLTexture> &texture : textures_) { + if (texture) + continue; - if (!textureU_.isCreated()) - textureU_.create(); - - if (!textureV_.isCreated()) - textureV_.create(); + texture = std::make_unique<QOpenGLTexture>(QOpenGLTexture::Target2D); + texture->create(); + } return true; } @@ -337,7 +334,7 @@ void ViewFinderGL::doRender() case libcamera::formats::NV42: /* Activate texture Y */ glActiveTexture(GL_TEXTURE0); - configureTexture(textureY_); + configureTexture(*textures_[0]); glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, @@ -351,7 +348,7 @@ void ViewFinderGL::doRender() /* Activate texture UV/VU */ glActiveTexture(GL_TEXTURE1); - configureTexture(textureU_); + configureTexture(*textures_[1]); glTexImage2D(GL_TEXTURE_2D, 0, GL_RG, @@ -367,7 +364,7 @@ void ViewFinderGL::doRender() case libcamera::formats::YUV420: /* Activate texture Y */ glActiveTexture(GL_TEXTURE0); - configureTexture(textureY_); + configureTexture(*textures_[0]); glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, @@ -381,7 +378,7 @@ void ViewFinderGL::doRender() /* Activate texture U */ glActiveTexture(GL_TEXTURE1); - configureTexture(textureU_); + configureTexture(*textures_[1]); glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, @@ -395,7 +392,7 @@ void ViewFinderGL::doRender() /* Activate texture V */ glActiveTexture(GL_TEXTURE2); - configureTexture(textureV_); + configureTexture(*textures_[2]); glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, @@ -411,7 +408,7 @@ void ViewFinderGL::doRender() case libcamera::formats::YVU420: /* Activate texture Y */ glActiveTexture(GL_TEXTURE0); - configureTexture(textureY_); + configureTexture(*textures_[0]); glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, @@ -425,7 +422,7 @@ void ViewFinderGL::doRender() /* Activate texture V */ glActiveTexture(GL_TEXTURE2); - configureTexture(textureV_); + configureTexture(*textures_[2]); glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, @@ -439,7 +436,7 @@ void ViewFinderGL::doRender() /* Activate texture U */ glActiveTexture(GL_TEXTURE1); - configureTexture(textureU_); + configureTexture(*textures_[1]); glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, @@ -462,7 +459,7 @@ void ViewFinderGL::doRender() * The texture width is thus half of the image with. */ glActiveTexture(GL_TEXTURE0); - configureTexture(textureY_); + configureTexture(*textures_[0]); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, diff --git a/src/qcam/viewfinder_gl.h b/src/qcam/viewfinder_gl.h index b3e36514..150fa4ae 100644 --- a/src/qcam/viewfinder_gl.h +++ b/src/qcam/viewfinder_gl.h @@ -8,6 +8,7 @@ #ifndef __VIEWFINDER_GL_H__ #define __VIEWFINDER_GL_H__ +#include <array> #include <memory> #include <QImage> @@ -77,14 +78,14 @@ private: /* Vertex buffer */ QOpenGLBuffer vertexBuffer_; - /* YUV texture planars and parameters */ + /* Textures */ + std::array<std::unique_ptr<QOpenGLTexture>, 3> textures_; + + /* YUV texture parameters */ GLuint textureUniformU_; GLuint textureUniformV_; GLuint textureUniformY_; GLuint textureUniformStepX_; - QOpenGLTexture textureU_; - QOpenGLTexture textureV_; - QOpenGLTexture textureY_; unsigned int horzSubSample_; unsigned int vertSubSample_; |