Example #1
0
bool
OGLCoreFramebuffer::setup(const GraphicsFramebufferDesc& framebufferDesc) noexcept
{
	assert(GL_NONE == _fbo);
	assert(framebufferDesc.getGraphicsFramebufferLayout());
	assert(framebufferDesc.getGraphicsFramebufferLayout()->isInstanceOf<OGLFramebufferLayout>());
	assert(framebufferDesc.getWidth() > 0 && framebufferDesc.getHeight() > 0);

	glCreateFramebuffers(1, &_fbo);
	if (_fbo == GL_NONE)
	{
		this->getDevice()->downcast<OGLDevice>()->message("glCreateFramebuffers() fail");
		return false;
	}

	GLenum drawCount = 0;
	GLenum drawBuffers[GL_COLOR_ATTACHMENT15 - GL_COLOR_ATTACHMENT0];

	const auto& textureComponents = framebufferDesc.getGraphicsFramebufferLayout()->getGraphicsFramebufferLayoutDesc().getComponents();
	const auto& colorAttachments = framebufferDesc.getColorAttachments();
	if (colorAttachments.size() > (sizeof(drawBuffers) / sizeof(drawBuffers[0])))
	{
		this->getDevice()->downcast<OGLDevice>()->message("The color attachment in framebuffer is out of range.");
		return false;
	}

	for (std::size_t i = 0; i < textureComponents.size(); i++)
	{
		auto type = textureComponents[i].getAttachType();
		switch (type)
		{
		case GraphicsImageLayout::GraphicsImageLayoutGeneral:
			break;
		case GraphicsImageLayout::GraphicsImageLayoutColorAttachmentOptimal:
		{
			GLint slot = GL_COLOR_ATTACHMENT0 + textureComponents[i].getAttachSlot();
			GLint mipLevel = colorAttachments[drawCount].getBindingLevel();
			GLint layer = colorAttachments[drawCount].getBindingLayer();

			if (!this->bindRenderTexture(colorAttachments[drawCount].getBindingTexture(), slot, mipLevel, layer))
				return false;

			drawBuffers[drawCount++] = slot;
		}
		break;
		case GraphicsImageLayout::GraphicsImageLayoutDepthStencilAttachmentOptimal:
		case GraphicsImageLayout::GraphicsImageLayoutDepthStencilReadOnlyOptimal:
		{
			const auto& depthStencilAttachment = framebufferDesc.getDepthStencilAttachment();
			if (!depthStencilAttachment.getBindingTexture())
			{
				this->getDevice()->downcast<OGLDevice>()->message("Need depth or stencil texture.");
				return false;
			}

			auto texture = depthStencilAttachment.getBindingTexture();
			auto format = texture->getGraphicsTextureDesc().getTexFormat();
			auto level = depthStencilAttachment.getBindingLevel();
			auto layer = depthStencilAttachment.getBindingLayer();

			if (OGLTypes::isDepthStencilFormat(format))
			{
				if (!this->bindRenderTexture(texture, GL_DEPTH_STENCIL_ATTACHMENT, level, layer))
					return false;
			}
			else if (OGLTypes::isDepthFormat(format))
			{
				if (!this->bindRenderTexture(texture, GL_DEPTH_ATTACHMENT, level, layer))
					return false;
			}
			else if (OGLTypes::isStencilFormat(format))
			{
				if (!this->bindRenderTexture(texture, GL_STENCIL_ATTACHMENT, level, layer))
					return false;
			}
			else
			{
				this->getDevice()->downcast<OGLDevice>()->message("Invalid texture format");
				return false;
			}
		}
		case GraphicsImageLayout::GraphicsImageLayoutShaderReadOnlyOptimal:
			break;
		case GraphicsImageLayout::GraphicsImageLayoutTransferSrcOptimal:
			break;
		case GraphicsImageLayout::GraphicsImageLayoutTransferDstOptimal:
			break;
		case GraphicsImageLayout::GraphicsImageLayoutPreinitialized:
			break;
		case GraphicsImageLayout::GraphicsImageLayoutPresentSrcKhr:
			break;
		default:
			break;
		}
	}

	glNamedFramebufferDrawBuffers(_fbo, drawCount, drawBuffers);

	_framebufferDesc = framebufferDesc;
	return OGLCheck::checkError();
}
Example #2
0
bool
EGL2Framebuffer::setup(const GraphicsFramebufferDesc& framebufferDesc) noexcept
{
	assert(GL_NONE == _fbo);
	assert(framebufferDesc.getGraphicsFramebufferLayout());
	assert(framebufferDesc.getWidth() > 0 && framebufferDesc.getHeight() > 0);

	std::uint32_t numAttachment = framebufferDesc.getColorAttachments().size();
	if (numAttachment > 1)
	{
		GL_PLATFORM_LOG("Can't support multi framebuffer");
		return false;
	}

	GL_CHECK(glGenFramebuffers(1, &_fbo));
	if (_fbo == GL_NONE)
	{
		GL_PLATFORM_LOG("glCreateFramebuffers() fail");
		return false;
	}

	GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, _fbo));

	const auto& textureComponents = framebufferDesc.getGraphicsFramebufferLayout()->getGraphicsFramebufferLayoutDesc().getComponents();
	const auto& colorAttachments = framebufferDesc.getColorAttachments();

	for (std::size_t i = 0; i < textureComponents.size(); i++)
	{
		auto type = textureComponents[i].getAttachType();
		switch (type)
		{
		case GraphicsImageLayout::GraphicsImageLayoutGeneral:
			break;
		case GraphicsImageLayout::GraphicsImageLayoutColorAttachmentOptimal:
		{
			GLint slot = GL_COLOR_ATTACHMENT0 + textureComponents[i].getAttachSlot();
			GLint mipLevel = colorAttachments[0].getBindingLevel();
			GLint layer = colorAttachments[0].getBindingLayer();

			if (!this->bindRenderTexture(colorAttachments[0].getBindingTexture(), slot, mipLevel, layer))
				return false;
		}
		break;
		case GraphicsImageLayout::GraphicsImageLayoutDepthStencilAttachmentOptimal:
		case GraphicsImageLayout::GraphicsImageLayoutDepthStencilReadOnlyOptimal:
		{
			const auto& depthStencilAttachment = framebufferDesc.getDepthStencilAttachment();
			if (!depthStencilAttachment.getBindingTexture())
			{
				GL_PLATFORM_LOG("Need depth or stencil texture.");
				return false;
			}

			auto texture = depthStencilAttachment.getBindingTexture();
			auto format = texture->getGraphicsTextureDesc().getTexFormat();
			auto level = depthStencilAttachment.getBindingLevel();
			auto layer = depthStencilAttachment.getBindingLayer();

			if (EGL2Types::isDepthFormat(format))
			{
				if (!this->bindRenderTexture(texture, GL_DEPTH_ATTACHMENT, level, layer))
					return false;
			}
			else if (EGL2Types::isStencilFormat(format))
			{
				if (!this->bindRenderTexture(texture, GL_STENCIL_ATTACHMENT, level, layer))
					return false;
			}
			else
			{
				GL_PLATFORM_LOG("Invalid texture format");
				return false;
			}
		}
		case GraphicsImageLayout::GraphicsImageLayoutShaderReadOnlyOptimal:
			break;
		case GraphicsImageLayout::GraphicsImageLayoutTransferSrcOptimal:
			break;
		case GraphicsImageLayout::GraphicsImageLayoutTransferDstOptimal:
			break;
		case GraphicsImageLayout::GraphicsImageLayoutPreinitialized:
			break;
		case GraphicsImageLayout::GraphicsImageLayoutPresentSrcKhr:
			break;
		default:
			break;
		}
	}

	GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, GL_NONE));

	_framebufferDesc = framebufferDesc;

	return EGL2Check::checkError();
}