Teejoon
143 lines
3.6 KiB
C++
143 lines
3.6 KiB
C++
|
|
#include "Rendering/FrameBuffer.h"
|
|
|
|
|
|
BufferResource::BufferResource(GLuint* resourceHandle, GLenum resourceType, GLenum attachment, GLuint mipMapLod, bool multiSampling)
|
|
{
|
|
m_ResourceHandle = resourceHandle;
|
|
m_ResourceType = resourceType;
|
|
m_Attachment = attachment;
|
|
m_MipMapLod = mipMapLod;
|
|
m_MultiSampling = multiSampling;
|
|
}
|
|
|
|
Texture2D::~Texture2D()
|
|
{
|
|
if (m_ResourceHandle != 0) {
|
|
glDeleteTextures(1, m_ResourceHandle);
|
|
}
|
|
*m_ResourceHandle = 0;
|
|
}
|
|
|
|
Texture2DMultiSample::~Texture2DMultiSample()
|
|
{
|
|
if (m_ResourceHandle != 0) {
|
|
glDeleteTextures(1, m_ResourceHandle);
|
|
}
|
|
*m_ResourceHandle = 0;
|
|
}
|
|
|
|
RenderBuffer::~RenderBuffer()
|
|
{
|
|
if (m_ResourceHandle != 0) {
|
|
glDeleteRenderbuffers(1, m_ResourceHandle);
|
|
}
|
|
*m_ResourceHandle = 0;
|
|
}
|
|
|
|
Texture2DArray::~Texture2DArray()
|
|
{
|
|
if (m_ResourceHandle != 0) {
|
|
glDeleteTextures(1, m_ResourceHandle);
|
|
}
|
|
*m_ResourceHandle = 0;
|
|
}
|
|
|
|
|
|
FrameBuffer::~FrameBuffer()
|
|
{
|
|
if (m_BufferHandle != 0) {
|
|
glDeleteFramebuffers(1, &m_BufferHandle);
|
|
}
|
|
}
|
|
|
|
void FrameBuffer::AddResource(std::shared_ptr<BufferResource> resource)
|
|
{
|
|
//m_MultiSampling is true when initialized
|
|
if (m_MultiSampling != resource->m_MultiSampling) {
|
|
if (m_MultiSampling == false) {
|
|
GLERROR("All renderbuffers is/is not using multisampling");
|
|
} else {
|
|
m_MultiSampling = false;
|
|
}
|
|
}
|
|
m_Resources.push_back(resource);
|
|
}
|
|
|
|
void FrameBuffer::Generate()
|
|
{
|
|
GLERROR("PRE");
|
|
|
|
std::vector<GLenum> attachments;
|
|
if (m_BufferHandle == 0) {
|
|
glGenFramebuffers(1, &m_BufferHandle);
|
|
}
|
|
glBindFramebuffer(GL_FRAMEBUFFER, m_BufferHandle);
|
|
GLERROR("1");
|
|
for (auto it = m_Resources.begin(); it != m_Resources.end(); it++) {
|
|
switch ((*it)->m_ResourceType) {
|
|
case GL_TEXTURE_2D_MULTISAMPLE:
|
|
glFramebufferTexture2D(GL_FRAMEBUFFER, (*it)->m_Attachment, GL_TEXTURE_2D_MULTISAMPLE, 0, 0);
|
|
GLERROR("FrameBuffer generate: GL_TEXTURE_2D_MULTISAMPLE");
|
|
break;
|
|
case GL_TEXTURE_2D:
|
|
glFramebufferTexture(GL_FRAMEBUFFER, (*it)->m_Attachment, *(*it)->m_ResourceHandle, (*it)->m_MipMapLod);
|
|
GLERROR("FrameBuffer generate: GL_TEXTURE_2D");
|
|
break;
|
|
case GL_RENDERBUFFER:
|
|
glFramebufferRenderbuffer(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle);
|
|
GLERROR("FrameBuffer generate: GL_RENDERBUFFER");
|
|
break;
|
|
case GL_TEXTURE_2D_ARRAY:
|
|
glFramebufferTexture(GL_FRAMEBUFFER, (*it)->m_Attachment, *(*it)->m_ResourceHandle, 0);
|
|
GLERROR("FrameBuffer generate: GL_TEXTURE_2D_ARRAY");
|
|
break;
|
|
}
|
|
GLERROR("2");
|
|
|
|
if ((*it)->m_Attachment != GL_DEPTH_ATTACHMENT && (*it)->m_Attachment != GL_STENCIL_ATTACHMENT && (*it)->m_Attachment != GL_DEPTH_STENCIL_ATTACHMENT) {
|
|
attachments.push_back((*it)->m_Attachment);
|
|
}
|
|
GLERROR("Attachment");
|
|
}
|
|
|
|
GLERROR("3");
|
|
|
|
GLenum* bufferTextures = attachments.data();
|
|
glDrawBuffers(attachments.size(), bufferTextures);
|
|
if (GLERROR("GLBufferAttachement error")) {
|
|
printf(": AttachmentSize %i", attachments.size());
|
|
}
|
|
|
|
if (GLenum frameBufferStatus = glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
|
|
GLERROR("Framebuffer incomplete");
|
|
LOG_ERROR("FrameBuffer incomplete: 0x%x\n", glCheckFramebufferStatus(GL_FRAMEBUFFER));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
GLERROR("END");
|
|
|
|
}
|
|
|
|
void FrameBuffer::Bind()
|
|
{
|
|
glBindFramebuffer(GL_FRAMEBUFFER, m_BufferHandle);
|
|
}
|
|
|
|
void FrameBuffer::Unbind()
|
|
{
|
|
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
|
}
|
|
|
|
GLuint FrameBuffer::GetHandle()
|
|
{
|
|
return m_BufferHandle;
|
|
}
|
|
|
|
void FrameBuffer::Read() {
|
|
glBindFramebuffer(GL_READ_FRAMEBUFFER, m_BufferHandle);
|
|
}
|
|
|
|
void FrameBuffer::Draw() {
|
|
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_BufferHandle);
|
|
}
|