Teejoon
102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
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#include "Rendering/FrameBuffer.h"
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BufferResource::BufferResource(GLuint* resourceHandle, GLenum resourceType, GLenum attachment)
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{
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m_ResourceHandle = resourceHandle;
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m_ResourceType = resourceType;
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m_Attachment = attachment;
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}
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Texture2D::~Texture2D()
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{
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if (m_ResourceHandle != 0) {
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glDeleteTextures(1, m_ResourceHandle);
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}
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}
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RenderBuffer::~RenderBuffer()
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{
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if (m_ResourceHandle != 0) {
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glDeleteRenderbuffers(1, m_ResourceHandle);
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}
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}
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FrameBuffer::~FrameBuffer()
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{
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if (m_BufferHandle != 0) {
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glDeleteFramebuffers(1, &m_BufferHandle);
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}
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}
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void FrameBuffer::AddResource(std::shared_ptr<BufferResource> resource)
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{
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m_Resources.push_back(resource);
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}
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void FrameBuffer::Generate()
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{
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GLERROR("PRE");
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std::vector<GLenum> attachments;
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if (m_BufferHandle == 0) {
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glGenFramebuffers(1, &m_BufferHandle);
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}
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glBindFramebuffer(GL_FRAMEBUFFER, m_BufferHandle);
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GLERROR("1");
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for (auto it = m_Resources.begin(); it != m_Resources.end(); it++) {
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switch ((*it)->m_ResourceType) {
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case GL_TEXTURE_2D:
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glFramebufferTexture2D(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle, 0);
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GLERROR("FrameBuffer generate: glFramebufferTexture2D");
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break;
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case GL_RENDERBUFFER:
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle);
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GLERROR("FrameBuffer generate: glFramebufferRenderbuffer");
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break;
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}
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GLERROR("2");
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if ((*it)->m_Attachment != GL_DEPTH_ATTACHMENT && (*it)->m_Attachment != GL_STENCIL_ATTACHMENT && (*it)->m_Attachment != GL_DEPTH_STENCIL_ATTACHMENT) {
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attachments.push_back((*it)->m_Attachment);
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}
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GLERROR("Attachment");
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}
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GLERROR("3");
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GLenum* bufferTextures = &attachments[0];
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glDrawBuffers(attachments.size(), bufferTextures);
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if (GLERROR("GLBufferAttachement error")) {
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printf(": AttachmentSize %i", attachments.size());
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}
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if (GLenum frameBufferStatus = glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
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GLERROR("Framebuffer incomplete");
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//LOG_ERROR("FrameBuffer incomplete: 0x%x\n", frameBufferStatus);
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exit(EXIT_FAILURE);
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}
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GLERROR("END");
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}
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void FrameBuffer::Bind()
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{
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glBindFramebuffer(GL_FRAMEBUFFER, m_BufferHandle);
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}
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void FrameBuffer::Unbind()
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{
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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}
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GLuint FrameBuffer::GetHandle()
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{
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return m_BufferHandle;
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}
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