C++ TCacheEntryBase::FromRenderTarget方法代码示例

//.........这里部分代码省略.........
			break;
		case 6: // RGBA8
			colmat[0] = colmat[5] = colmat[10] = colmat[15] = 1.0f;

			cbufid = 29;
			if (!efbHasAlpha)
			{
				ColorMask[3] = 0.0f;
				fConstAdd[3] = 1.0f;
				cbufid = 30;
			}
			break;

		default:
			ERROR_LOG(VIDEO, "Unknown copy color format: 0x%x", dstFormat);
			colmat[0] = colmat[5] = colmat[10] = colmat[15] = 1.0f;
			cbufid = 31;
			break;
		}
	}

	u8* dst = Memory::GetPointer(dstAddr);
	if (dst == nullptr)
	{
		ERROR_LOG(VIDEO, "Trying to copy from EFB to invalid address 0x%8x", dstAddr);
		return;
	}

	const unsigned int tex_w = scaleByHalf ? srcRect.GetWidth() / 2 : srcRect.GetWidth();
	const unsigned int tex_h = scaleByHalf ? srcRect.GetHeight() / 2 : srcRect.GetHeight();

	unsigned int scaled_tex_w = g_ActiveConfig.bCopyEFBScaled ? Renderer::EFBToScaledX(tex_w) : tex_w;
	unsigned int scaled_tex_h = g_ActiveConfig.bCopyEFBScaled ? Renderer::EFBToScaledY(tex_h) : tex_h;

	// remove all texture cache entries at dstAddr
	{
		std::pair<TexCache::iterator, TexCache::iterator> iter_range = textures_by_address.equal_range((u64)dstAddr);
		TexCache::iterator iter = iter_range.first;
		while (iter != iter_range.second)
		{
			iter = FreeTexture(iter);
		}
	}

	// create the texture
	TCacheEntryConfig config;
	config.rendertarget = true;
	config.width = scaled_tex_w;
	config.height = scaled_tex_h;
	config.layers = FramebufferManagerBase::GetEFBLayers();

	TCacheEntryBase* entry = AllocateTexture(config);

	entry->SetGeneralParameters(dstAddr, 0, dstFormat);
	entry->SetDimensions(tex_w, tex_h, 1);

	entry->frameCount = FRAMECOUNT_INVALID;
	entry->SetEfbCopy(dstStride);
	entry->is_custom_tex = false;

	entry->FromRenderTarget(dst, dstFormat, dstStride, srcFormat, srcRect, isIntensity, scaleByHalf, cbufid, colmat);

	u64 hash = entry->CalculateHash();
	entry->SetHashes(hash, hash);

	// Invalidate all textures that overlap the range of our efb copy.
	// Unless our efb copy has a weird stride, then we want avoid invalidating textures which
	// we might be able to do a partial texture update on.
	if (entry->memory_stride == entry->CacheLinesPerRow() * 32)
	{
		TexCache::iterator iter = textures_by_address.begin();
		while (iter != textures_by_address.end())
		{
			if (iter->second->OverlapsMemoryRange(dstAddr, entry->size_in_bytes))
				iter = FreeTexture(iter);
			else
				++iter;
		}
	}

	if (g_ActiveConfig.bDumpEFBTarget)
	{
		static int count = 0;
		entry->Save(StringFromFormat("%sefb_frame_%i.png", File::GetUserPath(D_DUMPTEXTURES_IDX).c_str(),
			count++), 0);
	}

	if (g_bRecordFifoData)
	{
		// Mark the memory behind this efb copy as dynamicly generated for the Fifo log
		u32 address = dstAddr;
		for (u32 i = 0; i < entry->NumBlocksY(); i++)
		{
			FifoRecorder::GetInstance().UseMemory(address, entry->CacheLinesPerRow() * 32, MemoryUpdate::TEXTURE_MAP, true);
			address += entry->memory_stride;
		}
	}

	textures_by_address.emplace((u64)dstAddr, entry);
}

//.........这里部分代码省略.........
			colmat[1] = colmat[5] = colmat[9] = colmat[13] = 1.0f;
			cbufid = 22;
			break;
		case 10: // B8
			colmat[2] = colmat[6] = colmat[10] = colmat[14] = 1.0f;
			cbufid = 23;
			break;

		case 11: // RG8
			colmat[0] = colmat[4] = colmat[8] = colmat[13] = 1.0f;
			cbufid = 24;
			break;

		case 12: // GB8
			colmat[1] = colmat[5] = colmat[9] = colmat[14] = 1.0f;
			cbufid = 25;
			break;

		case 4: // RGB565
			colmat[0] = colmat[5] = colmat[10] = 1.0f;
			ColorMask[0] = ColorMask[2] = 31.0f;
			ColorMask[4] = ColorMask[6] = 1.0f / 31.0f;
			ColorMask[1] = 63.0f;
			ColorMask[5] = 1.0f / 63.0f;
			fConstAdd[3] = 1.0f; // set alpha to 1
			cbufid = 26;
			break;

		case 5: // RGB5A3
			colmat[0] = colmat[5] = colmat[10] = colmat[15] = 1.0f;
			ColorMask[0] = ColorMask[1] = ColorMask[2] = 31.0f;
			ColorMask[4] = ColorMask[5] = ColorMask[6] = 1.0f / 31.0f;
			ColorMask[3] = 7.0f;
			ColorMask[7] = 1.0f / 7.0f;

			cbufid = 27;
			if (!efbHasAlpha) {
				ColorMask[3] = 0.0f;
				fConstAdd[3] = 1.0f;
				cbufid = 28;
			}
			break;
		case 6: // RGBA8
			colmat[0] = colmat[5] = colmat[10] = colmat[15] = 1.0f;

			cbufid = 29;
			if (!efbHasAlpha) {
				ColorMask[3] = 0.0f;
				fConstAdd[3] = 1.0f;
				cbufid = 30;
			}
			break;

		default:
			ERROR_LOG(VIDEO, "Unknown copy color format: 0x%x", dstFormat);
			colmat[0] = colmat[5] = colmat[10] = colmat[15] = 1.0f;
			cbufid = 31;
			break;
		}
	}

	const unsigned int tex_w = scaleByHalf ? srcRect.GetWidth()/2 : srcRect.GetWidth();
	const unsigned int tex_h = scaleByHalf ? srcRect.GetHeight()/2 : srcRect.GetHeight();

	unsigned int scaled_tex_w = g_ActiveConfig.bCopyEFBScaled ? Renderer::EFBToScaledX(tex_w) : tex_w;
	unsigned int scaled_tex_h = g_ActiveConfig.bCopyEFBScaled ? Renderer::EFBToScaledY(tex_h) : tex_h;


	TCacheEntryBase *entry = textures[dstAddr];
	if (entry)
	{
		if (entry->type == TCET_EC_DYNAMIC && entry->native_width == tex_w && entry->native_height == tex_h)
		{
			scaled_tex_w = tex_w;
			scaled_tex_h = tex_h;
		}
		else if (!(entry->type == TCET_EC_VRAM && entry->virtual_width == scaled_tex_w && entry->virtual_height == scaled_tex_h))
		{
			// remove it and recreate it as a render target
			delete entry;
			entry = nullptr;
		}
	}

	if (nullptr == entry)
	{
		// create the texture
		textures[dstAddr] = entry = g_texture_cache->CreateRenderTargetTexture(scaled_tex_w, scaled_tex_h);

		// TODO: Using the wrong dstFormat, dumb...
		entry->SetGeneralParameters(dstAddr, 0, dstFormat, 1);
		entry->SetDimensions(tex_w, tex_h, scaled_tex_w, scaled_tex_h);
		entry->SetHashes(TEXHASH_INVALID);
		entry->type = TCET_EC_VRAM;
	}

	entry->frameCount = frameCount;

	entry->FromRenderTarget(dstAddr, dstFormat, srcFormat, srcRect, isIntensity, scaleByHalf, cbufid, colmat);
}

//.........这里部分代码省略.........
			bytes_per_row,
			num_blocks_y,
			dstStride,
			srcFormat,
			srcRect,
			isIntensity,
			scaleByHalf);
	}
	else
	{
		// Hack: Most games don't actually need the correct texture data in RAM
		//       and we can just keep a copy in VRAM. We zero the memory so we
		//       can check it hasn't changed before using our copy in VRAM.
		u8* ptr = dst;
		for (u32 i = 0; i < num_blocks_y; i++)
		{
			memset(ptr, 0, bytes_per_row);
			ptr += dstStride;
		}
	}

	if (g_bRecordFifoData)
	{
		// Mark the memory behind this efb copy as dynamicly generated for the Fifo log
		u32 address = dstAddr;
		for (u32 i = 0; i < num_blocks_y; i++)
		{
			FifoRecorder::GetInstance().UseMemory(address, bytes_per_row, MemoryUpdate::TEXTURE_MAP, true);
			address += dstStride;
		}
	}

	if (dstStride < bytes_per_row)
	{
		// This kind of efb copy results in a scrambled image.
		// I'm pretty sure no game actually wants to do this, it might be caused by a
		// programming bug in the game, or a CPU/Bounding box emulation issue with dolphin.
		// The copy_to_ram code path above handles this "correctly" and scrambles the image
		// but the copy_to_vram code path just saves and uses unscrambled texture instead.

		// To avoid a "incorrect" result, we simply skip doing the copy_to_vram code path
		// so if the game does try to use the scrambled texture, dolphin will grab the scrambled
		// texture (or black if copy_to_ram is also disabled) out of ram.
		ERROR_LOG(VIDEO, "Memory stride too small (%i < %i)", dstStride, bytes_per_row);
		copy_to_vram = false;
	}

	// Invalidate all textures that overlap the range of our efb copy.
	// Unless our efb copy has a weird stride, then we want avoid invalidating textures which
	// we might be able to do a partial texture update on.
	// TODO: This also invalidates partial overlaps, which we currently don't have a better way
	//       of dealing with.
	if (dstStride == bytes_per_row || !copy_to_vram)
	{
		TexCache::iterator iter = textures_by_address.begin();
		while (iter != textures_by_address.end())
		{
			if (iter->second->addr + iter->second->size_in_bytes <= dstAddr || iter->second->addr >= dstAddr + num_blocks_y * dstStride)
				++iter;
			else
				iter = InvalidateTexture(iter);
		}
	}

	if (copy_to_vram)
	{
		// create the texture
		TCacheEntryConfig config;
		config.rendertarget = true;
		config.width = scaled_tex_w;
		config.height = scaled_tex_h;
		config.layers = FramebufferManagerBase::GetEFBLayers();

		TCacheEntryBase* entry = AllocateTexture(config);

		if (entry)
		{
			entry->SetGeneralParameters(dstAddr, 0, baseFormat);
			entry->SetDimensions(tex_w, tex_h, 1);

			entry->frameCount = FRAMECOUNT_INVALID;
			entry->SetEfbCopy(dstStride);
			entry->is_custom_tex = false;

			entry->FromRenderTarget(dst, srcFormat, srcRect, scaleByHalf, cbufid, colmat);

			u64 hash = entry->CalculateHash();
			entry->SetHashes(hash, hash);

			if (g_ActiveConfig.bDumpEFBTarget)
			{
				static int count = 0;
				entry->Save(StringFromFormat("%sefb_frame_%i.png", File::GetUserPath(D_DUMPTEXTURES_IDX).c_str(),
					count++), 0);
			}

			textures_by_address.emplace((u64)dstAddr, entry);
		}
	}
}