1 files changed, 51 insertions, 0 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;
+}