mirror of
https://github.com/blawar/GLideN64.git
synced 2024-07-07 03:13:49 +00:00
34d638a0a3
Uncleared depth buffer most likely is used as auxilary color buffer. Fix pause screen in Mickey USA when copy depth to RDRAM is enabled, issue #85.
324 lines
11 KiB
C++
324 lines
11 KiB
C++
#ifdef OS_MAC_OS_X
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#include <malloc/malloc.h>
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#else
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#include <malloc.h>
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#endif
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#include <assert.h>
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#include "OpenGL.h"
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#include "Combiner.h"
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#include "FrameBuffer.h"
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#include "DepthBuffer.h"
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#include "VI.h"
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#include "Config.h"
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#include "Debug.h"
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const GLuint ZlutImageUnit = 0;
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const GLuint TlutImageUnit = 1;
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const GLuint depthImageUnit = 2;
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DepthBuffer::DepthBuffer() : m_address(0), m_width(0), m_FBO(0), m_pDepthImageTexture(NULL), m_pDepthBufferTexture(NULL), m_cleared(false), m_pResolveDepthBufferTexture(NULL), m_resolved(false)
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{
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glGenFramebuffers(1, &m_FBO);
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}
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DepthBuffer::DepthBuffer(DepthBuffer && _other) :
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m_address(_other.m_address), m_width(_other.m_width),
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m_FBO(_other.m_FBO), m_pDepthImageTexture(_other.m_pDepthImageTexture), m_pDepthBufferTexture(_other.m_pDepthBufferTexture),
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m_pResolveDepthBufferTexture(_other.m_pResolveDepthBufferTexture), m_resolved(_other.m_resolved)
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{
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_other.m_FBO = 0;
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_other.m_pDepthImageTexture = NULL;
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_other.m_pDepthBufferTexture = NULL;
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_other.m_pResolveDepthBufferTexture = NULL;
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_other.m_resolved = false;
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}
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DepthBuffer::~DepthBuffer()
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{
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if (m_FBO != 0)
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glDeleteFramebuffers(1, &m_FBO);
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if (m_pDepthImageTexture != NULL)
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textureCache().removeFrameBufferTexture(m_pDepthImageTexture);
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if (m_pDepthBufferTexture != NULL)
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textureCache().removeFrameBufferTexture(m_pDepthBufferTexture);
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if (m_pResolveDepthBufferTexture != NULL)
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textureCache().removeFrameBufferTexture(m_pResolveDepthBufferTexture);
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}
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void DepthBuffer::initDepthImageTexture(FrameBuffer * _pBuffer)
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{
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#ifdef GL_IMAGE_TEXTURES_SUPPORT
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if (!video().getRender().isImageTexturesSupported() || config.frameBufferEmulation.N64DepthCompare == 0 || m_pDepthImageTexture != NULL)
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return;
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m_pDepthImageTexture = textureCache().addFrameBufferTexture();
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m_pDepthImageTexture->width = (u32)(_pBuffer->m_pTexture->width);
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m_pDepthImageTexture->height = (u32)(_pBuffer->m_pTexture->height);
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m_pDepthImageTexture->format = 0;
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m_pDepthImageTexture->size = 2;
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m_pDepthImageTexture->clampS = 1;
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m_pDepthImageTexture->clampT = 1;
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m_pDepthImageTexture->address = _pBuffer->m_startAddress;
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m_pDepthImageTexture->clampWidth = _pBuffer->m_width;
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m_pDepthImageTexture->clampHeight = _pBuffer->m_height;
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m_pDepthImageTexture->frameBufferTexture = TRUE;
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m_pDepthImageTexture->maskS = 0;
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m_pDepthImageTexture->maskT = 0;
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m_pDepthImageTexture->mirrorS = 0;
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m_pDepthImageTexture->mirrorT = 0;
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m_pDepthImageTexture->realWidth = m_pDepthImageTexture->width;
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m_pDepthImageTexture->realHeight = m_pDepthImageTexture->height;
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m_pDepthImageTexture->textureBytes = m_pDepthImageTexture->realWidth * m_pDepthImageTexture->realHeight * 2 * sizeof(float); // Width*Height*RG*sizeof(GL_RGBA32F)
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textureCache().addFrameBufferTextureSize(m_pDepthImageTexture->textureBytes);
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glBindTexture(GL_TEXTURE_2D, m_pDepthImageTexture->glName);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RG32F, m_pDepthImageTexture->realWidth, m_pDepthImageTexture->realHeight, 0, GL_RG, GL_FLOAT, NULL);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glBindTexture(GL_TEXTURE_2D, 0);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_FBO);
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glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_pDepthImageTexture->glName, 0);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, _pBuffer->m_FBO);
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depthBufferList().clearBuffer();
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#endif // GL_IMAGE_TEXTURES_SUPPORT
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}
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void DepthBuffer::_initDepthBufferTexture(FrameBuffer * _pBuffer, CachedTexture * _pTexture, bool _multisample)
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{
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if (_pBuffer != NULL) {
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_pTexture->width = (u32)(_pBuffer->m_pTexture->width);
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_pTexture->height = (u32)(_pBuffer->m_pTexture->height);
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_pTexture->address = _pBuffer->m_startAddress;
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_pTexture->clampWidth = _pBuffer->m_width;
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_pTexture->clampHeight = _pBuffer->m_height;
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}
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else {
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_pTexture->width = video().getWidth();
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_pTexture->height = video().getHeight();
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_pTexture->address = VI.lastOrigin;
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_pTexture->clampWidth = VI.width;
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_pTexture->clampHeight = VI.height;
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}
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_pTexture->format = 0;
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_pTexture->size = 2;
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_pTexture->clampS = 1;
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_pTexture->clampT = 1;
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_pTexture->frameBufferTexture = TRUE;
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_pTexture->maskS = 0;
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_pTexture->maskT = 0;
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_pTexture->mirrorS = 0;
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_pTexture->mirrorT = 0;
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_pTexture->realWidth = _pTexture->width;
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_pTexture->realHeight = _pTexture->height;
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_pTexture->textureBytes = _pTexture->realWidth * _pTexture->realHeight * sizeof(float);
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textureCache().addFrameBufferTextureSize(_pTexture->textureBytes);
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#ifndef GLES2
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const GLenum format = GL_DEPTH_COMPONENT;
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#else
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const GLenum format = GL_DEPTH_COMPONENT24_OES;
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#endif
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if (_multisample) {
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glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, _pTexture->glName);
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if (_pBuffer != NULL)
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glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, config.video.multisampling, GL_DEPTH_COMPONENT, _pBuffer->m_pTexture->realWidth, _pBuffer->m_pTexture->realHeight, false);
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else
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glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, config.video.multisampling, GL_DEPTH_COMPONENT, video().getWidth(), video().getHeight(), false);
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}
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else {
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glBindTexture(GL_TEXTURE_2D, _pTexture->glName);
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if (_pBuffer != NULL)
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glTexImage2D(GL_TEXTURE_2D, 0, format, _pBuffer->m_pTexture->realWidth, _pBuffer->m_pTexture->realHeight, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
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else
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glTexImage2D(GL_TEXTURE_2D, 0, format, video().getWidth(), video().getHeight(), 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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}
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glBindTexture(GL_TEXTURE_2D, 0);
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}
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void DepthBuffer::setDepthAttachment()
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{
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if (config.video.multisampling != 0)
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D_MULTISAMPLE, m_pDepthBufferTexture->glName, 0);
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else
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, m_pDepthBufferTexture->glName, 0);
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m_resolved = false;
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}
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void DepthBuffer::initDepthBufferTexture(FrameBuffer * _pBuffer)
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{
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if (m_pDepthBufferTexture == NULL) {
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m_pDepthBufferTexture = textureCache().addFrameBufferTexture();
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_initDepthBufferTexture(_pBuffer, m_pDepthBufferTexture, config.video.multisampling != 0);
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}
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if (config.video.multisampling != 0 && m_pResolveDepthBufferTexture == NULL) {
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m_pResolveDepthBufferTexture = textureCache().addFrameBufferTexture();
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_initDepthBufferTexture(_pBuffer, m_pResolveDepthBufferTexture, false);
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}
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}
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CachedTexture * DepthBuffer::resolveDepthBufferTexture(FrameBuffer * _pBuffer)
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{
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if (config.video.multisampling == 0)
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return m_pDepthBufferTexture;
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if (m_resolved)
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return m_pResolveDepthBufferTexture;
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glDisable(GL_SCISSOR_TEST);
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glBindFramebuffer(GL_READ_FRAMEBUFFER, _pBuffer->m_FBO);
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glReadBuffer(GL_COLOR_ATTACHMENT0);
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GLuint attachment = GL_COLOR_ATTACHMENT0;
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glDrawBuffers(1, &attachment);
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assert(checkFBO());
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, _pBuffer->m_resolveFBO);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, m_pResolveDepthBufferTexture->glName, 0);
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assert(checkFBO());
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glBlitFramebuffer(
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0, 0, m_pDepthBufferTexture->realWidth, m_pDepthBufferTexture->realHeight,
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0, 0, m_pResolveDepthBufferTexture->realWidth, m_pResolveDepthBufferTexture->realHeight,
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GL_DEPTH_BUFFER_BIT, GL_NEAREST
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);
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glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, _pBuffer->m_FBO);
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glEnable(GL_SCISSOR_TEST);
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m_resolved = true;
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return m_pResolveDepthBufferTexture;
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}
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void DepthBuffer::activateDepthBufferTexture(FrameBuffer * _pBuffer)
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{
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textureCache().activateTexture(0, resolveDepthBufferTexture(_pBuffer));
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}
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void DepthBuffer::bindDepthImageTexture()
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{
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#ifdef GL_IMAGE_TEXTURES_SUPPORT
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glBindImageTexture(depthImageUnit, m_pDepthImageTexture->glName, 0, GL_FALSE, 0, GL_READ_WRITE, GL_RG32F);
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#endif
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}
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void DepthBufferList::init()
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{
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m_pCurrent = NULL;
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m_pzLUT = new u16[0x40000];
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for (int i = 0; i<0x40000; i++) {
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u32 exponent = 0;
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u32 testbit = 1 << 17;
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while ((i & testbit) && (exponent < 7)) {
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exponent++;
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testbit = 1 << (17 - exponent);
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}
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const u32 mantissa = (i >> (6 - (6 < exponent ? 6 : exponent))) & 0x7ff;
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m_pzLUT[i] = (u16)(((exponent << 11) | mantissa) << 2);
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}
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}
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void DepthBufferList::destroy()
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{
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delete[] m_pzLUT;
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m_pzLUT = NULL;
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m_pCurrent = NULL;
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m_list.clear();
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}
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void DepthBufferList::setNotCleared()
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{
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for (DepthBuffers::iterator iter = m_list.begin(); iter != m_list.end(); ++iter)
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iter->m_cleared = false;
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}
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DepthBuffer * DepthBufferList::findBuffer(u32 _address)
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{
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for (DepthBuffers::iterator iter = m_list.begin(); iter != m_list.end(); ++iter)
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if (iter->m_address == _address)
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return &(*iter);
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return NULL;
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}
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void DepthBufferList::removeBuffer(u32 _address )
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{
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for (DepthBuffers::iterator iter = m_list.begin(); iter != m_list.end(); ++iter)
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if (iter->m_address == _address) {
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m_list.erase(iter);
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return;
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}
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}
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void DepthBufferList::saveBuffer(u32 _address)
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{
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if (!config.frameBufferEmulation.enable)
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return;
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FrameBuffer * pFrameBuffer = frameBufferList().findBuffer(_address);
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if (pFrameBuffer == NULL)
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pFrameBuffer = frameBufferList().getCurrent();
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if (m_pCurrent == NULL || m_pCurrent->m_address != _address)
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m_pCurrent = findBuffer(_address);
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if (m_pCurrent != NULL && pFrameBuffer != NULL && m_pCurrent->m_width != pFrameBuffer->m_width) {
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removeBuffer(_address);
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m_pCurrent = NULL;
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}
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if (m_pCurrent == NULL) {
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m_list.emplace_front();
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DepthBuffer & buffer = m_list.front();
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buffer.m_address = _address;
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buffer.m_width = pFrameBuffer != NULL ? pFrameBuffer->m_width : VI.width;
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buffer.initDepthBufferTexture(pFrameBuffer);
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m_pCurrent = &buffer;
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}
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frameBufferList().attachDepthBuffer();
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#ifdef DEBUG
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DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "DepthBuffer_SetBuffer( 0x%08X ); color buffer is 0x%08X\n",
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address, ( pFrameBuffer != NULL && pFrameBuffer->m_FBO > 0) ? pFrameBuffer->m_startAddress : 0
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);
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#endif
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}
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void DepthBufferList::clearBuffer()
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{
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if (m_pCurrent == NULL)
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return;
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m_pCurrent->m_cleared = true;
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#ifdef GL_IMAGE_TEXTURES_SUPPORT
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if (m_pCurrent->m_FBO == 0 || !video().getRender().isImageTexturesSupported() || config.frameBufferEmulation.N64DepthCompare == 0)
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return;
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float color[4] = {1.0f, 1.0f, 0.0f, 1.0f};
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glBindImageTexture(depthImageUnit, 0, 0, GL_FALSE, 0, GL_READ_WRITE, GL_RG32F);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_pCurrent->m_FBO);
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const u32 cycleType = gDP.otherMode.cycleType;
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gDP.otherMode.cycleType = G_CYC_FILL;
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video().getRender().drawRect(0,0,VI.width, VI.height, color);
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gDP.otherMode.cycleType = cycleType;
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glBindImageTexture(depthImageUnit, m_pCurrent->m_pDepthImageTexture->glName, 0, GL_FALSE, 0, GL_READ_WRITE, GL_RG32F);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, frameBufferList().getCurrent()->m_FBO);
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#endif // GL_IMAGE_TEXTURES_SUPPORT
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}
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void DepthBuffer_Init()
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{
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depthBufferList().init();
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}
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void DepthBuffer_Destroy()
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{
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depthBufferList().destroy();
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}
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