CGSH_OpenGL::TEXTURE_INFO CGSH_OpenGL::PrepareTexture(const TEX0& tex0)
{
TEXTURE_INFO texInfo;
for(const auto& candidateFramebuffer : m_framebuffers)
{
bool canBeUsed = false;
float offsetX = 0;
//Case: TEX0 points at the start of a frame buffer with the same width
if(candidateFramebuffer->m_basePtr == tex0.GetBufPtr() &&
candidateFramebuffer->m_width == tex0.GetBufWidth() &&
IsCompatibleFramebufferPSM(candidateFramebuffer->m_psm, tex0.nPsm))
{
canBeUsed = true;
}
//Another case: TEX0 is pointing to the start of a page within our framebuffer (BGDA does this)
else if(candidateFramebuffer->m_basePtr <= tex0.GetBufPtr() &&
candidateFramebuffer->m_psm == tex0.nPsm)
{
uint32 framebufferOffset = tex0.GetBufPtr() - candidateFramebuffer->m_basePtr;
//Bail if offset is not aligned on a page boundary
if((framebufferOffset & (CGsPixelFormats::PAGESIZE - 1)) != 0) continue;
auto framebufferPageSize = CGsPixelFormats::GetPsmPageSize(candidateFramebuffer->m_psm);
uint32 framebufferPageCountX = candidateFramebuffer->m_width / framebufferPageSize.first;
uint32 framebufferPageIndex = framebufferOffset / CGsPixelFormats::PAGESIZE;
//Bail if pointed page isn't on the first line
if(framebufferPageIndex >= framebufferPageCountX) continue;
canBeUsed = true;
offsetX = static_cast<float>(framebufferPageIndex * framebufferPageSize.first) / static_cast<float>(candidateFramebuffer->m_width);
}
if(canBeUsed)
{
CommitFramebufferDirtyPages(candidateFramebuffer, 0, tex0.GetHeight());
//We have a winner
glBindTexture(GL_TEXTURE_2D, candidateFramebuffer->m_texture);
float scaleRatioX = static_cast<float>(tex0.GetWidth()) / static_cast<float>(candidateFramebuffer->m_textureWidth);
float scaleRatioY = static_cast<float>(tex0.GetHeight()) / static_cast<float>(candidateFramebuffer->m_height);
//If we're currently in interlaced mode, framebuffer will have twice the height
bool halfHeight = GetCrtIsInterlaced() && GetCrtIsFrameMode();
if(halfHeight) scaleRatioY *= 2.0f;
texInfo.offsetX = offsetX;
texInfo.scaleRatioX = scaleRatioX;
texInfo.scaleRatioY = scaleRatioY;
return texInfo;
}
}
auto texture = TexCache_Search(tex0);
if(texture)
{
glBindTexture(GL_TEXTURE_2D, texture->m_texture);
auto& cachedArea = texture->m_cachedArea;
if(cachedArea.HasDirtyPages())
{
auto texturePageSize = CGsPixelFormats::GetPsmPageSize(tex0.nPsm);
auto pageRect = cachedArea.GetPageRect();
for(unsigned int dirtyPageIndex = 0; dirtyPageIndex < CGsCachedArea::MAX_DIRTYPAGES; dirtyPageIndex++)
{
if(!cachedArea.IsPageDirty(dirtyPageIndex)) continue;
uint32 pageX = dirtyPageIndex % pageRect.first;
uint32 pageY = dirtyPageIndex / pageRect.first;
uint32 texX = pageX * texturePageSize.first;
uint32 texY = pageY * texturePageSize.second;
uint32 texWidth = texturePageSize.first;
uint32 texHeight = texturePageSize.second;
if(texX >= tex0.GetWidth()) continue;
if(texY >= tex0.GetHeight()) continue;
//assert(texX < tex0.GetWidth());
//assert(texY < tex0.GetHeight());
if((texX + texWidth) > tex0.GetWidth())
{
texWidth = tex0.GetWidth() - texX;
}
if((texY + texHeight) > tex0.GetHeight())
{
texHeight = tex0.GetHeight() - texY;
}
((this)->*(m_textureUpdater[tex0.nPsm]))(tex0.GetBufPtr(), tex0.nBufWidth, texX, texY, texWidth, texHeight);
}
cachedArea.ClearDirtyPages();
}
}
else
{
//Validate texture dimensions to prevent problems
auto texWidth = tex0.GetWidth();
auto texHeight = tex0.GetHeight();
assert(texWidth <= 1024);
assert(texHeight <= 1024);
texWidth = std::min<uint32>(texWidth, 1024);
texHeight = std::min<uint32>(texHeight, 1024);
GLuint nTexture = 0;
glGenTextures(1, &nTexture);
glBindTexture(GL_TEXTURE_2D, nTexture);
((this)->*(m_textureUploader[tex0.nPsm]))(tex0.GetBufPtr(), tex0.nBufWidth, texWidth, texHeight);
TexCache_Insert(tex0, nTexture);
}
return texInfo;
}
CGSH_Direct3D9::TEXTURE_INFO CGSH_Direct3D9::LoadTexture(const TEX0& tex0, uint32 maxMip, const MIPTBP1& miptbp1, const MIPTBP2& miptbp2)
{
TEXTURE_INFO result;
{
D3DXMATRIX textureMatrix;
D3DXMatrixIdentity(&textureMatrix);
D3DXMatrixScaling(&textureMatrix, 1, 1, 1);
m_device->SetTransform(D3DTS_TEXTURE0, &textureMatrix);
}
for(const auto& candidateFramebuffer : m_framebuffers)
{
if(candidateFramebuffer->m_basePtr == tex0.GetBufPtr() &&
candidateFramebuffer->m_width == tex0.GetBufWidth() &&
candidateFramebuffer->m_canBeUsedAsTexture)
{
float scaleRatioX = static_cast<float>(tex0.GetWidth()) / static_cast<float>(candidateFramebuffer->m_width);
float scaleRatioY = static_cast<float>(tex0.GetHeight()) / static_cast<float>(candidateFramebuffer->m_height);
{
D3DXMATRIX textureMatrix;
D3DXMatrixIdentity(&textureMatrix);
D3DXMatrixScaling(&textureMatrix, scaleRatioX, scaleRatioY, 1);
m_device->SetTransform(D3DTS_TEXTURE0, &textureMatrix);
}
result.texture = candidateFramebuffer->m_renderTarget;
result.isRenderTarget = true;
result.renderTargetWidth = candidateFramebuffer->m_width;
result.renderTargetHeight = candidateFramebuffer->m_height;
return result;
}
}
HRESULT resultCode = S_OK;
auto texture = m_textureCache.Search(tex0);
if(!texture)
{
uint32 width = tex0.GetWidth();
uint32 height = tex0.GetHeight();
D3DFORMAT textureFormat = D3DFMT_A8R8G8B8;
switch(tex0.nPsm)
{
case PSMCT32:
textureFormat = D3DFMT_A8R8G8B8;
break;
case PSMCT16:
textureFormat = D3DFMT_A1R5G5B5;
break;
case PSMT8:
case PSMT4:
textureFormat = D3DFMT_L8;
break;
default:
assert(false);
break;
}
resultCode = m_device->CreateTexture(width, height, 1 + maxMip, D3DUSAGE_DYNAMIC, textureFormat, D3DPOOL_DEFAULT, &result.texture, NULL);
assert(SUCCEEDED(resultCode));
m_textureCache.Insert(tex0, result.texture);
texture = m_textureCache.Search(tex0);
assert(result.texture == texture->m_textureHandle);
texture->m_cachedArea.Invalidate(0, RAMSIZE);
}
auto& cachedArea = texture->m_cachedArea;
if(cachedArea.HasDirtyPages())
{
D3DLOCKED_RECT lockedRect;
resultCode = texture->m_textureHandle->LockRect(0, &lockedRect, nullptr, 0);
assert(SUCCEEDED(resultCode));
auto texturePageSize = CGsPixelFormats::GetPsmPageSize(tex0.nPsm);
auto pageRect = cachedArea.GetPageRect();
for(unsigned int dirtyPageIndex = 0; dirtyPageIndex < CGsCachedArea::MAX_DIRTYPAGES; dirtyPageIndex++)
{
if(!cachedArea.IsPageDirty(dirtyPageIndex)) continue;
uint32 pageX = dirtyPageIndex % pageRect.first;
uint32 pageY = dirtyPageIndex / pageRect.first;
uint32 texX = pageX * texturePageSize.first;
uint32 texY = pageY * texturePageSize.second;
uint32 texWidth = texturePageSize.first;
uint32 texHeight = texturePageSize.second;
if(texX >= tex0.GetWidth()) continue;
if(texY >= tex0.GetHeight()) continue;
if((texX + texWidth) > tex0.GetWidth())
{
texWidth = tex0.GetWidth() - texX;
}
if((texY + texHeight) > tex0.GetHeight())
{
texHeight = tex0.GetHeight() - texY;
}
((this)->*(m_textureUpdater[tex0.nPsm]))(&lockedRect, tex0.GetBufPtr(), tex0.nBufWidth, texX, texY, texWidth, texHeight);
}
cachedArea.ClearDirtyPages();
resultCode = texture->m_textureHandle->UnlockRect(0);
assert(SUCCEEDED(resultCode));
//Update mipmap levels
for(uint32 mipLevel = 1; mipLevel <= maxMip; mipLevel++)
{
uint32 mipLevelWidth = std::max<uint32>(tex0.GetWidth() >> mipLevel, 1);
uint32 mipLevelHeight = std::max<uint32>(tex0.GetHeight() >> mipLevel, 1);
uint32 mipLevelBufferPointer = 0;
uint32 mipLevelBufferWidth = 0;
switch(mipLevel)
{
case 1: mipLevelBufferPointer = miptbp1.GetTbp1(); mipLevelBufferWidth = miptbp1.GetTbw1(); break;
case 2: mipLevelBufferPointer = miptbp1.GetTbp2(); mipLevelBufferWidth = miptbp1.GetTbw2(); break;
case 3: mipLevelBufferPointer = miptbp1.GetTbp3(); mipLevelBufferWidth = miptbp1.GetTbw3(); break;
case 4: mipLevelBufferPointer = miptbp2.GetTbp4(); mipLevelBufferWidth = miptbp2.GetTbw4(); break;
case 5: mipLevelBufferPointer = miptbp2.GetTbp5(); mipLevelBufferWidth = miptbp2.GetTbw5(); break;
case 6: mipLevelBufferPointer = miptbp2.GetTbp6(); mipLevelBufferWidth = miptbp2.GetTbw6(); break;
}
if(mipLevelBufferWidth == 0) break;
resultCode = texture->m_textureHandle->LockRect(mipLevel, &lockedRect, nullptr, 0);
assert(SUCCEEDED(resultCode));
((this)->*(m_textureUpdater[tex0.nPsm]))(&lockedRect, mipLevelBufferPointer, mipLevelBufferWidth / 64, 0, 0, mipLevelWidth, mipLevelHeight);
resultCode = texture->m_textureHandle->UnlockRect(mipLevel);
assert(SUCCEEDED(resultCode));
}
}