diff options
Diffstat (limited to 'src/buffer/frame')
-rw-r--r-- | src/buffer/frame/texture_framebuffer.cc | 51 | ||||
-rw-r--r-- | src/buffer/frame/texture_framebuffer.h | 54 |
2 files changed, 63 insertions, 42 deletions
diff --git a/src/buffer/frame/texture_framebuffer.cc b/src/buffer/frame/texture_framebuffer.cc new file mode 100644 index 0000000..b585985 --- /dev/null +++ b/src/buffer/frame/texture_framebuffer.cc @@ -0,0 +1,51 @@ +#include "texture_framebuffer.h" + +TextureFramebuffer::Guard::Guard(GLuint id): + _id(id) { + glBindFramebuffer(GL_FRAMEBUFFER, _id); +} + +TextureFramebuffer::Guard::~Guard() { + glBindFramebuffer(GL_FRAMEBUFFER, 0); +} + +TextureFramebuffer::Guard TextureFramebuffer::use() const { + return Guard(_id); +} + +TextureFramebuffer::TextureFramebuffer(std::size_t width, std::size_t height) { + glGenFramebuffers(1, &_id); + + auto guard = use(); + + glGenTextures(1, &_texture); + glBindTexture(GL_TEXTURE_2D, _texture); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, (void*)0); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _texture, 0); + + if ( glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE ) { + _good = true; + } +} + +TextureFramebuffer::~TextureFramebuffer() { + glDeleteFramebuffers(1, &_id); +} + +bool TextureFramebuffer::isGood() const { + return _good; +} + +void TextureFramebuffer::resize(std::size_t width, std::size_t height) const { + auto guard = use(); + + glViewport(0, 0, width, height); + glBindTexture(GL_TEXTURE_2D, _texture); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, (void*)0); +} + +GLuint TextureFramebuffer::getTexture() const { + return _texture; +} diff --git a/src/buffer/frame/texture_framebuffer.h b/src/buffer/frame/texture_framebuffer.h index 31153ff..f6b20e6 100644 --- a/src/buffer/frame/texture_framebuffer.h +++ b/src/buffer/frame/texture_framebuffer.h @@ -1,5 +1,9 @@ #pragma once +#include <cstdint> + +#include <GL/glew.h> + class TextureFramebuffer { private: GLuint _id; @@ -11,52 +15,18 @@ public: struct Guard { const GLuint _id; - Guard(GLuint id): _id(id) { - glBindFramebuffer(GL_FRAMEBUFFER, _id); - } - ~Guard() { - glBindFramebuffer(GL_FRAMEBUFFER, 0); - } + Guard(GLuint id); + ~Guard(); }; - Guard use() const { - return Guard(_id); - } - - TextureFramebuffer(std::size_t width, std::size_t height) { - glGenFramebuffers(1, &_id); - - auto guard = use(); - - glGenTextures(1, &_texture); - glBindTexture(GL_TEXTURE_2D, _texture); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, (void*)0); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _texture, 0); - - if ( glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE ) { - _good = true; - } - } - - ~TextureFramebuffer() { - glDeleteFramebuffers(1, &_id); - } + Guard use() const; - bool isGood() const { - return _good; - } + TextureFramebuffer(std::size_t width, std::size_t height); + ~TextureFramebuffer(); - void resize(std::size_t width, std::size_t height) const { - auto guard = use(); + bool isGood() const; - glViewport(0, 0, width, height); - glBindTexture(GL_TEXTURE_2D, _texture); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, (void*)0); - } + void resize(std::size_t width, std::size_t height) const; - GLuint getTexture() const { - return _texture; - } + GLuint getTexture() const; }; |