/Source/Urho3D/Graphics/OpenGL/OGLTexture2DArray.cpp
C++ | 484 lines | 379 code | 69 blank | 36 comment | 104 complexity | 27d2a9eb3850153c60dda2620bac3b4d MD5 | raw file
- //
- // Copyright (c) 2008-2016 the Urho3D project.
- //
- // Permission is hereby granted, free of charge, to any person obtaining a copy
- // of this software and associated documentation files (the "Software"), to deal
- // in the Software without restriction, including without limitation the rights
- // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- // copies of the Software, and to permit persons to whom the Software is
- // furnished to do so, subject to the following conditions:
- //
- // The above copyright notice and this permission notice shall be included in
- // all copies or substantial portions of the Software.
- //
- // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- // THE SOFTWARE.
- //
- #include "../../Precompiled.h"
- #include "../../Core/Context.h"
- #include "../../Core/Profiler.h"
- #include "../../Graphics/Graphics.h"
- #include "../../Graphics/GraphicsEvents.h"
- #include "../../Graphics/GraphicsImpl.h"
- #include "../../Graphics/Renderer.h"
- #include "../../Graphics/Texture2DArray.h"
- #include "../../IO/FileSystem.h"
- #include "../../IO/Log.h"
- #include "../../Resource/ResourceCache.h"
- #include "../../Resource/XMLFile.h"
- #include "../../DebugNew.h"
- #ifdef _MSC_VER
- #pragma warning(disable:4355)
- #endif
- namespace Urho3D
- {
- void Texture2DArray::OnDeviceLost()
- {
- GPUObject::OnDeviceLost();
- if (renderSurface_)
- renderSurface_->OnDeviceLost();
- }
- void Texture2DArray::OnDeviceReset()
- {
- if (!object_.name_ || dataPending_)
- {
- // If has a resource file, reload through the resource cache. Otherwise just recreate.
- ResourceCache* cache = GetSubsystem<ResourceCache>();
- if (cache->Exists(GetName()))
- dataLost_ = !cache->ReloadResource(this);
- if (!object_.name_)
- {
- Create();
- dataLost_ = true;
- }
- }
- dataPending_ = false;
- }
- void Texture2DArray::Release()
- {
- if (object_.name_)
- {
- if (!graphics_)
- return;
- if (!graphics_->IsDeviceLost())
- {
- for (unsigned i = 0; i < MAX_TEXTURE_UNITS; ++i)
- {
- if (graphics_->GetTexture(i) == this)
- graphics_->SetTexture(i, 0);
- }
- glDeleteTextures(1, &object_.name_);
- }
- if (renderSurface_)
- renderSurface_->Release();
- object_.name_ = 0;
- }
- }
- bool Texture2DArray::SetData(unsigned layer, unsigned level, int x, int y, int width, int height, const void* data)
- {
- URHO3D_PROFILE(SetTextureData);
- if (!object_.name_ || !graphics_)
- {
- URHO3D_LOGERROR("Texture array not created, can not set data");
- return false;
- }
- if (!data)
- {
- URHO3D_LOGERROR("Null source for setting data");
- return false;
- }
- if (layer >= layers_)
- {
- URHO3D_LOGERROR("Illegal layer for setting data");
- return false;
- }
- if (level >= levels_)
- {
- URHO3D_LOGERROR("Illegal mip level for setting data");
- return false;
- }
- if (graphics_->IsDeviceLost())
- {
- URHO3D_LOGWARNING("Texture array data assignment while device is lost");
- dataPending_ = true;
- return true;
- }
- if (IsCompressed())
- {
- x &= ~3;
- y &= ~3;
- }
- int levelWidth = GetLevelWidth(level);
- int levelHeight = GetLevelHeight(level);
- if (x < 0 || x + width > levelWidth || y < 0 || y + height > levelHeight || width <= 0 || height <= 0)
- {
- URHO3D_LOGERROR("Illegal dimensions for setting data");
- return false;
- }
- graphics_->SetTextureForUpdate(this);
- #ifndef GL_ES_VERSION_2_0
- bool wholeLevel = x == 0 && y == 0 && width == levelWidth && height == levelHeight && layer == 0;
- unsigned format = GetSRGB() ? GetSRGBFormat(format_) : format_;
- if (!IsCompressed())
- {
- if (wholeLevel)
- glTexImage3D(target_, level, format, width, height, layers_, 0, GetExternalFormat(format_),
- GetDataType(format_), 0);
- glTexSubImage3D(target_, level, x, y, layer, width, height, 1, GetExternalFormat(format_),
- GetDataType(format_), data);
- }
- else
- {
- if (wholeLevel)
- glCompressedTexImage3D(target_, level, format, width, height, layers_, 0,
- GetDataSize(width, height, layers_), 0);
- glCompressedTexSubImage3D(target_, level, x, y, layer, width, height, 1, format,
- GetDataSize(width, height), data);
- }
- #endif
- graphics_->SetTexture(0, 0);
- return true;
- }
- bool Texture2DArray::SetData(unsigned layer, Deserializer& source)
- {
- SharedPtr<Image> image(new Image(context_));
- if (!image->Load(source))
- return false;
- return SetData(layer, image);
- }
- bool Texture2DArray::SetData(unsigned layer, Image* image, bool useAlpha)
- {
- if (!image)
- {
- URHO3D_LOGERROR("Null image, can not set data");
- return false;
- }
- if (!layers_)
- {
- URHO3D_LOGERROR("Number of layers in the array must be set first");
- return false;
- }
- if (layer >= layers_)
- {
- URHO3D_LOGERROR("Illegal layer for setting data");
- return false;
- }
- // Use a shared ptr for managing the temporary mip images created during this function
- SharedPtr<Image> mipImage;
- unsigned memoryUse = 0;
- int quality = QUALITY_HIGH;
- Renderer* renderer = GetSubsystem<Renderer>();
- if (renderer)
- quality = renderer->GetTextureQuality();
- if (!image->IsCompressed())
- {
- // Convert unsuitable formats to RGBA
- unsigned components = image->GetComponents();
- if (Graphics::GetGL3Support() && ((components == 1 && !useAlpha) || components == 2))
- {
- mipImage = image->ConvertToRGBA(); image = mipImage;
- if (!image)
- return false;
- components = image->GetComponents();
- }
- unsigned char* levelData = image->GetData();
- int levelWidth = image->GetWidth();
- int levelHeight = image->GetHeight();
- unsigned format = 0;
- // Discard unnecessary mip levels
- for (unsigned i = 0; i < mipsToSkip_[quality]; ++i)
- {
- mipImage = image->GetNextLevel(); image = mipImage;
- levelData = image->GetData();
- levelWidth = image->GetWidth();
- levelHeight = image->GetHeight();
- }
- switch (components)
- {
- case 1:
- format = useAlpha ? Graphics::GetAlphaFormat() : Graphics::GetLuminanceFormat();
- break;
- case 2:
- format = Graphics::GetLuminanceAlphaFormat();
- break;
- case 3:
- format = Graphics::GetRGBFormat();
- break;
- case 4:
- format = Graphics::GetRGBAFormat();
- break;
- default:
- assert(false); // Should not reach here
- break;
- }
- // Create the texture array when layer 0 is being loaded, check that rest of the layers are same size & format
- if (!layer)
- {
- // If image was previously compressed, reset number of requested levels to avoid error if level count is too high for new size
- if (IsCompressed() && requestedLevels_ > 1)
- requestedLevels_ = 0;
- // Create the texture array (the number of layers must have been already set)
- SetSize(0, levelWidth, levelHeight, format);
- }
- else
- {
- if (!object_.name_)
- {
- URHO3D_LOGERROR("Texture array layer 0 must be loaded first");
- return false;
- }
- if (levelWidth != width_ || levelHeight != height_ || format != format_)
- {
- URHO3D_LOGERROR("Texture array layer does not match size or format of layer 0");
- return false;
- }
- }
- for (unsigned i = 0; i < levels_; ++i)
- {
- SetData(layer, i, 0, 0, levelWidth, levelHeight, levelData);
- memoryUse += levelWidth * levelHeight * components;
- if (i < levels_ - 1)
- {
- mipImage = image->GetNextLevel(); image = mipImage;
- levelData = image->GetData();
- levelWidth = image->GetWidth();
- levelHeight = image->GetHeight();
- }
- }
- }
- else
- {
- int width = image->GetWidth();
- int height = image->GetHeight();
- unsigned levels = image->GetNumCompressedLevels();
- unsigned format = graphics_->GetFormat(image->GetCompressedFormat());
- bool needDecompress = false;
- if (!format)
- {
- format = Graphics::GetRGBAFormat();
- needDecompress = true;
- }
- unsigned mipsToSkip = mipsToSkip_[quality];
- if (mipsToSkip >= levels)
- mipsToSkip = levels - 1;
- while (mipsToSkip && (width / (1 << mipsToSkip) < 4 || height / (1 << mipsToSkip) < 4))
- --mipsToSkip;
- width /= (1 << mipsToSkip);
- height /= (1 << mipsToSkip);
- // Create the texture array when layer 0 is being loaded, assume rest of the layers are same size & format
- if (!layer)
- {
- SetNumLevels(Max((levels - mipsToSkip), 1U));
- SetSize(0, width, height, format);
- }
- else
- {
- if (!object_.name_)
- {
- URHO3D_LOGERROR("Texture array layer 0 must be loaded first");
- return false;
- }
- if (width != width_ || height != height_ || format != format_)
- {
- URHO3D_LOGERROR("Texture array layer does not match size or format of layer 0");
- return false;
- }
- }
- for (unsigned i = 0; i < levels_ && i < levels - mipsToSkip; ++i)
- {
- CompressedLevel level = image->GetCompressedLevel(i + mipsToSkip);
- if (!needDecompress)
- {
- SetData(layer, i, 0, 0, level.width_, level.height_, level.data_);
- memoryUse += level.rows_ * level.rowSize_;
- }
- else
- {
- unsigned char* rgbaData = new unsigned char[level.width_ * level.height_ * 4];
- level.Decompress(rgbaData);
- SetData(layer, i, 0, 0, level.width_, level.height_, rgbaData);
- memoryUse += level.width_ * level.height_ * 4;
- delete[] rgbaData;
- }
- }
- }
- layerMemoryUse_[layer] = memoryUse;
- unsigned totalMemoryUse = sizeof(Texture2DArray) + layerMemoryUse_.Capacity() * sizeof(unsigned);
- for (unsigned i = 0; i < layers_; ++i)
- totalMemoryUse += layerMemoryUse_[i];
- SetMemoryUse(totalMemoryUse);
- return true;
- }
- bool Texture2DArray::GetData(unsigned layer, unsigned level, void* dest) const
- {
- #ifndef GL_ES_VERSION_2_0
- if (!object_.name_ || !graphics_)
- {
- URHO3D_LOGERROR("Texture array not created, can not get data");
- return false;
- }
- if (!dest)
- {
- URHO3D_LOGERROR("Null destination for getting data");
- return false;
- }
- if (layer != 0)
- {
- URHO3D_LOGERROR("Only the full download of the array is supported, set layer=0");
- return false;
- }
- if (level >= levels_)
- {
- URHO3D_LOGERROR("Illegal mip level for getting data");
- return false;
- }
- if (graphics_->IsDeviceLost())
- {
- URHO3D_LOGWARNING("Getting texture data while device is lost");
- return false;
- }
- graphics_->SetTextureForUpdate(const_cast<Texture2DArray*>(this));
- if (!IsCompressed())
- glGetTexImage(target_, level, GetExternalFormat(format_), GetDataType(format_), dest);
- else
- glGetCompressedTexImage(target_, level, dest);
- graphics_->SetTexture(0, 0);
- return true;
- #else
- URHO3D_LOGERROR("Getting texture data not supported");
- return false;
- #endif
- }
- bool Texture2DArray::Create()
- {
- Release();
- #ifdef GL_ES_VERSION_2_0
- URHO3D_LOGERROR("Failed to create 2D array texture, currently unsupported on OpenGL ES 2");
- return false;
- #else
- if (!graphics_ || !width_ || !height_ || !layers_)
- return false;
- if (graphics_->IsDeviceLost())
- {
- URHO3D_LOGWARNING("Texture array creation while device is lost");
- return true;
- }
- glGenTextures(1, &object_.name_);
- // Ensure that our texture is bound to OpenGL texture unit 0
- graphics_->SetTextureForUpdate(this);
- unsigned format = GetSRGB() ? GetSRGBFormat(format_) : format_;
- unsigned externalFormat = GetExternalFormat(format_);
- unsigned dataType = GetDataType(format_);
- // If not compressed, create the initial level 0 texture with null data
- bool success = true;
- if (!IsCompressed())
- {
- glGetError();
- glTexImage3D(target_, 0, format, width_, height_, layers_, 0, externalFormat, dataType, 0);
- if (glGetError())
- success = false;
- }
- if (!success)
- URHO3D_LOGERROR("Failed to create texture array");
- // Set mipmapping
- if (usage_ == TEXTURE_DEPTHSTENCIL)
- requestedLevels_ = 1;
- else if (usage_ == TEXTURE_RENDERTARGET)
- {
- #ifdef __EMSCRIPTEN__
- // glGenerateMipmap appears to not be working on WebGL, disable rendertarget mipmaps for now
- requestedLevels_ = 1;
- #else
- if (requestedLevels_ != 1)
- {
- // Generate levels for the first time now
- RegenerateLevels();
- // Determine max. levels automatically
- requestedLevels_ = 0;
- }
- #endif
- }
- levels_ = CheckMaxLevels(width_, height_, requestedLevels_);
- glTexParameteri(target_, GL_TEXTURE_BASE_LEVEL, 0);
- glTexParameteri(target_, GL_TEXTURE_MAX_LEVEL, levels_ - 1);
- // Set initial parameters, then unbind the texture
- UpdateParameters();
- graphics_->SetTexture(0, 0);
- return success;
- #endif
- }
- }