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android/platform/external/angle/ac3575b272/./src/libANGLE/renderer/d3d/TextureD3D.cpp
blob: 9ea01c40ddd38f903c5ea25e0340a475b254d552 [file]
//
// Copyright 2014 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// TextureD3D.cpp: Implementations of the Texture interfaces shared betweeen the D3D backends.
#include "libANGLE/renderer/d3d/TextureD3D.h"
#include "common/mathutil.h"
#include "common/utilities.h"
#include "libANGLE/Buffer.h"
#include "libANGLE/Config.h"
#include "libANGLE/Framebuffer.h"
#include "libANGLE/Image.h"
#include "libANGLE/Surface.h"
#include "libANGLE/Texture.h"
#include "libANGLE/formatutils.h"
#include "libANGLE/renderer/BufferImpl.h"
#include "libANGLE/renderer/d3d/BufferD3D.h"
#include "libANGLE/renderer/d3d/EGLImageD3D.h"
#include "libANGLE/renderer/d3d/ImageD3D.h"
#include "libANGLE/renderer/d3d/RendererD3D.h"
#include "libANGLE/renderer/d3d/RenderTargetD3D.h"
#include "libANGLE/renderer/d3d/SurfaceD3D.h"
#include "libANGLE/renderer/d3d/TextureStorage.h"
namespace rx
{
namespace
{
gl::Error GetUnpackPointer(const gl::PixelUnpackState &unpack, const uint8_t *pixels,
ptrdiff_t layerOffset, const uint8_t **pointerOut)
{
if (unpack.pixelBuffer.id() != 0)
{
// Do a CPU readback here, if we have an unpack buffer bound and the fast GPU path is not supported
gl::Buffer *pixelBuffer = unpack.pixelBuffer.get();
ptrdiff_t offset = reinterpret_cast<ptrdiff_t>(pixels);
// TODO: this is the only place outside of renderer that asks for a buffers raw data.
// This functionality should be moved into renderer and the getData method of BufferImpl removed.
BufferD3D *bufferD3D = GetImplAs<BufferD3D>(pixelBuffer);
ASSERT(bufferD3D);
const uint8_t *bufferData = NULL;
gl::Error error = bufferD3D->getData(&bufferData);
if (error.isError())
{
return error;
}
*pointerOut = bufferData + offset;
}
else
{
*pointerOut = pixels;
}
// Offset the pointer for 2D array layer (if it's valid)
if (*pointerOut != nullptr)
{
*pointerOut += layerOffset;
}
return gl::Error(GL_NO_ERROR);
}
bool IsRenderTargetUsage(GLenum usage)
{
return (usage == GL_FRAMEBUFFER_ATTACHMENT_ANGLE);
}
}
TextureD3D::TextureD3D(const gl::TextureState &state, RendererD3D *renderer)
: TextureImpl(state),
mRenderer(renderer),
mDirtyImages(true),
mImmutable(false),
mTexStorage(nullptr),
mBaseLevel(0)
{
}
TextureD3D::~TextureD3D()
{
}
gl::Error TextureD3D::getNativeTexture(TextureStorage **outStorage)
{
// ensure the underlying texture is created
gl::Error error = initializeStorage(false);
if (error.isError())
{
return error;
}
if (mTexStorage)
{
error = updateStorage();
if (error.isError())
{
return error;
}
}
ASSERT(outStorage);
*outStorage = mTexStorage;
return gl::Error(GL_NO_ERROR);
}
GLint TextureD3D::getLevelZeroWidth() const
{
ASSERT(gl::CountLeadingZeros(static_cast<uint32_t>(getBaseLevelWidth())) > getBaseLevel());
return getBaseLevelWidth() << mBaseLevel;
}
GLint TextureD3D::getLevelZeroHeight() const
{
ASSERT(gl::CountLeadingZeros(static_cast<uint32_t>(getBaseLevelHeight())) > getBaseLevel());
return getBaseLevelHeight() << mBaseLevel;
}
GLint TextureD3D::getLevelZeroDepth() const
{
return getBaseLevelDepth();
}
GLint TextureD3D::getBaseLevelWidth() const
{
const ImageD3D *baseImage = getBaseLevelImage();
return (baseImage ? baseImage->getWidth() : 0);
}
GLint TextureD3D::getBaseLevelHeight() const
{
const ImageD3D *baseImage = getBaseLevelImage();
return (baseImage ? baseImage->getHeight() : 0);
}
GLint TextureD3D::getBaseLevelDepth() const
{
const ImageD3D *baseImage = getBaseLevelImage();
return (baseImage ? baseImage->getDepth() : 0);
}
// Note: "base level image" is loosely defined to be any image from the base level,
// where in the base of 2D array textures and cube maps there are several. Don't use
// the base level image for anything except querying texture format and size.
GLenum TextureD3D::getBaseLevelInternalFormat() const
{
const ImageD3D *baseImage = getBaseLevelImage();
return (baseImage ? baseImage->getInternalFormat() : GL_NONE);
}
bool TextureD3D::shouldUseSetData(const ImageD3D *image) const
{
if (!mRenderer->getWorkarounds().setDataFasterThanImageUpload)
{
return false;
}
gl::InternalFormat internalFormat = gl::GetInternalFormatInfo(image->getInternalFormat());
// We can only handle full updates for depth-stencil textures, so to avoid complications
// disable them entirely.
if (internalFormat.depthBits > 0 || internalFormat.stencilBits > 0)
{
return false;
}
// TODO(jmadill): Handle compressed internal formats
return (mTexStorage && !internalFormat.compressed);
}
gl::Error TextureD3D::setImageImpl(const gl::ImageIndex &index,
GLenum type,
const gl::PixelUnpackState &unpack,
const uint8_t *pixels,
ptrdiff_t layerOffset)
{
ImageD3D *image = getImage(index);
ASSERT(image);
// No-op
if (image->getWidth() == 0 || image->getHeight() == 0 || image->getDepth() == 0)
{
return gl::Error(GL_NO_ERROR);
}
// We no longer need the "GLenum format" parameter to TexImage to determine what data format "pixels" contains.
// From our image internal format we know how many channels to expect, and "type" gives the format of pixel's components.
const uint8_t *pixelData = NULL;
gl::Error error = GetUnpackPointer(unpack, pixels, layerOffset, &pixelData);
if (error.isError())
{
return error;
}
if (pixelData != nullptr)
{
if (shouldUseSetData(image))
{
error = mTexStorage->setData(index, image, NULL, type, unpack, pixelData);
}
else
{
gl::Box fullImageArea(0, 0, 0, image->getWidth(), image->getHeight(), image->getDepth());
error = image->loadData(fullImageArea, unpack, type, pixelData, index.is3D());
}
if (error.isError())
{
return error;
}
mDirtyImages = true;
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D::subImage(const gl::ImageIndex &index, const gl::Box &area, GLenum format, GLenum type,
const gl::PixelUnpackState &unpack, const uint8_t *pixels, ptrdiff_t layerOffset)
{
// CPU readback & copy where direct GPU copy is not supported
const uint8_t *pixelData = NULL;
gl::Error error = GetUnpackPointer(unpack, pixels, layerOffset, &pixelData);
if (error.isError())
{
return error;
}
if (pixelData != NULL)
{
ImageD3D *image = getImage(index);
ASSERT(image);
if (shouldUseSetData(image))
{
return mTexStorage->setData(index, image, &area, type, unpack, pixelData);
}
error = image->loadData(area, unpack, type, pixelData, index.is3D());
if (error.isError())
{
return error;
}
error = commitRegion(index, area);
if (error.isError())
{
return error;
}
mDirtyImages = true;
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D::setCompressedImageImpl(const gl::ImageIndex &index,
const gl::PixelUnpackState &unpack,
const uint8_t *pixels,
ptrdiff_t layerOffset)
{
// We no longer need the "GLenum format" parameter to TexImage to determine what data format "pixels" contains.
// From our image internal format we know how many channels to expect, and "type" gives the format of pixel's components.
const uint8_t *pixelData = NULL;
gl::Error error = GetUnpackPointer(unpack, pixels, layerOffset, &pixelData);
if (error.isError())
{
return error;
}
if (pixelData != NULL)
{
ImageD3D *image = getImage(index);
ASSERT(image);
gl::Box fullImageArea(0, 0, 0, image->getWidth(), image->getHeight(), image->getDepth());
error = image->loadCompressedData(fullImageArea, pixelData);
if (error.isError())
{
return error;
}
mDirtyImages = true;
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D::subImageCompressed(const gl::ImageIndex &index, const gl::Box &area, GLenum format,
const gl::PixelUnpackState &unpack, const uint8_t *pixels,
ptrdiff_t layerOffset)
{
const uint8_t *pixelData = NULL;
gl::Error error = GetUnpackPointer(unpack, pixels, layerOffset, &pixelData);
if (error.isError())
{
return error;
}
if (pixelData != NULL)
{
ImageD3D *image = getImage(index);
ASSERT(image);
error = image->loadCompressedData(area, pixelData);
if (error.isError())
{
return error;
}
mDirtyImages = true;
}
return gl::Error(GL_NO_ERROR);
}
bool TextureD3D::isFastUnpackable(const gl::PixelUnpackState &unpack, GLenum sizedInternalFormat)
{
return unpack.pixelBuffer.id() != 0 && mRenderer->supportsFastCopyBufferToTexture(sizedInternalFormat);
}
gl::Error TextureD3D::fastUnpackPixels(const gl::PixelUnpackState &unpack, const uint8_t *pixels, const gl::Box &destArea,
GLenum sizedInternalFormat, GLenum type, RenderTargetD3D *destRenderTarget)
{
if (unpack.skipRows != 0 || unpack.skipPixels != 0 || unpack.imageHeight != 0 ||
unpack.skipImages != 0)
{
// TODO(jmadill): additional unpack parameters
UNIMPLEMENTED();
return gl::Error(GL_INVALID_OPERATION,
"Unimplemented pixel store parameters in fastUnpackPixels");
}
// No-op
if (destArea.width <= 0 && destArea.height <= 0 && destArea.depth <= 0)
{
return gl::Error(GL_NO_ERROR);
}
// In order to perform the fast copy through the shader, we must have the right format, and be able
// to create a render target.
ASSERT(mRenderer->supportsFastCopyBufferToTexture(sizedInternalFormat));
uintptr_t offset = reinterpret_cast<uintptr_t>(pixels);
gl::Error error = mRenderer->fastCopyBufferToTexture(unpack, static_cast<unsigned int>(offset), destRenderTarget, sizedInternalFormat, type, destArea);
if (error.isError())
{
return error;
}
return gl::Error(GL_NO_ERROR);
}
GLint TextureD3D::creationLevels(GLsizei width, GLsizei height, GLsizei depth) const
{
if ((gl::isPow2(width) && gl::isPow2(height) && gl::isPow2(depth)) ||
mRenderer->getNativeExtensions().textureNPOT)
{
// Maximum number of levels
return gl::log2(std::max(std::max(width, height), depth)) + 1;
}
else
{
// OpenGL ES 2.0 without GL_OES_texture_npot does not permit NPOT mipmaps.
return 1;
}
}
TextureStorage *TextureD3D::getStorage()
{
ASSERT(mTexStorage);
return mTexStorage;
}
ImageD3D *TextureD3D::getBaseLevelImage() const
{
if (mBaseLevel >= gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
{
return nullptr;
}
return getImage(getImageIndex(mBaseLevel, 0));
}
gl::Error TextureD3D::setImageExternal(GLenum target,
egl::Stream *stream,
const egl::Stream::GLTextureDescription &desc)
{
// Only external images can accept external textures
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D::generateMipmap()
{
const GLuint baseLevel = mState.getEffectiveBaseLevel();
const GLuint maxLevel = mState.getMipmapMaxLevel();
ASSERT(maxLevel > baseLevel); // Should be checked before calling this.
if (mTexStorage && mRenderer->getWorkarounds().zeroMaxLodWorkaround)
{
// Switch to using the mipmapped texture.
TextureStorage *textureStorage = NULL;
gl::Error error = getNativeTexture(&textureStorage);
if (error.isError())
{
return error;
}
error = textureStorage->useLevelZeroWorkaroundTexture(false);
if (error.isError())
{
return error;
}
}
// Set up proper mipmap chain in our Image array.
initMipmapImages();
if (mTexStorage && mTexStorage->supportsNativeMipmapFunction())
{
gl::Error error = updateStorage();
if (error.isError())
{
return error;
}
// Generate the mipmap chain using the ad-hoc DirectX function.
error = mRenderer->generateMipmapUsingD3D(mTexStorage, mState);
if (error.isError())
{
return error;
}
}
else
{
// Generate the mipmap chain, one level at a time.
gl::Error error = generateMipmapUsingImages(maxLevel);
if (error.isError())
{
return error;
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D::generateMipmapUsingImages(const GLuint maxLevel)
{
// We know that all layers have the same dimension, for the texture to be complete
GLint layerCount = static_cast<GLint>(getLayerCount(mBaseLevel));
// When making mipmaps with the setData workaround enabled, the texture storage has
// the image data already. For non-render-target storage, we have to pull it out into
// an image layer.
if (mRenderer->getWorkarounds().setDataFasterThanImageUpload && mTexStorage)
{
if (!mTexStorage->isRenderTarget())
{
// Copy from the storage mip 0 to Image mip 0
for (GLint layer = 0; layer < layerCount; ++layer)
{
gl::ImageIndex srcIndex = getImageIndex(mBaseLevel, layer);
ImageD3D *image = getImage(srcIndex);
gl::Error error = image->copyFromTexStorage(srcIndex, mTexStorage);
if (error.isError())
{
return error;
}
}
}
else
{
gl::Error error = updateStorage();
if (error.isError())
{
return error;
}
}
}
// TODO: Decouple this from zeroMaxLodWorkaround. This is a 9_3 restriction, unrelated to zeroMaxLodWorkaround.
// The restriction is because Feature Level 9_3 can't create SRVs on individual levels of the texture.
// As a result, even if the storage is a rendertarget, we can't use the GPU to generate the mipmaps without further work.
// The D3D9 renderer works around this by copying each level of the texture into its own single-layer GPU texture (in Blit9::boxFilter).
// Feature Level 9_3 could do something similar, or it could continue to use CPU-side mipmap generation, or something else.
bool renderableStorage = (mTexStorage && mTexStorage->isRenderTarget() && !(mRenderer->getWorkarounds().zeroMaxLodWorkaround));
for (GLint layer = 0; layer < layerCount; ++layer)
{
for (GLuint mip = mBaseLevel + 1; mip <= maxLevel; ++mip)
{
ASSERT(getLayerCount(mip) == layerCount);
gl::ImageIndex sourceIndex = getImageIndex(mip - 1, layer);
gl::ImageIndex destIndex = getImageIndex(mip, layer);
if (renderableStorage)
{
// GPU-side mipmapping
gl::Error error = mTexStorage->generateMipmap(sourceIndex, destIndex);
if (error.isError())
{
return error;
}
}
else
{
// CPU-side mipmapping
gl::Error error = mRenderer->generateMipmap(getImage(destIndex), getImage(sourceIndex));
if (error.isError())
{
return error;
}
}
}
}
if (mTexStorage)
{
updateStorage();
}
return gl::Error(GL_NO_ERROR);
}
bool TextureD3D::isBaseImageZeroSize() const
{
ImageD3D *baseImage = getBaseLevelImage();
if (!baseImage || baseImage->getWidth() <= 0)
{
return true;
}
if (!gl::IsCubeMapTextureTarget(baseImage->getTarget()) && baseImage->getHeight() <= 0)
{
return true;
}
if (baseImage->getTarget() == GL_TEXTURE_3D && baseImage->getDepth() <= 0)
{
return true;
}
if (baseImage->getTarget() == GL_TEXTURE_2D_ARRAY && getLayerCount(getBaseLevel()) <= 0)
{
return true;
}
return false;
}
gl::Error TextureD3D::ensureRenderTarget()
{
gl::Error error = initializeStorage(true);
if (error.isError())
{
return error;
}
if (!isBaseImageZeroSize())
{
ASSERT(mTexStorage);
if (!mTexStorage->isRenderTarget())
{
TextureStorage *newRenderTargetStorage = NULL;
error = createCompleteStorage(true, &newRenderTargetStorage);
if (error.isError())
{
return error;
}
error = mTexStorage->copyToStorage(newRenderTargetStorage);
if (error.isError())
{
SafeDelete(newRenderTargetStorage);
return error;
}
error = setCompleteTexStorage(newRenderTargetStorage);
if (error.isError())
{
SafeDelete(newRenderTargetStorage);
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
bool TextureD3D::canCreateRenderTargetForImage(const gl::ImageIndex &index) const
{
ImageD3D *image = getImage(index);
bool levelsComplete = (isImageComplete(index) && isImageComplete(getImageIndex(0, 0)));
return (image->isRenderableFormat() && levelsComplete);
}
gl::Error TextureD3D::commitRegion(const gl::ImageIndex &index, const gl::Box &region)
{
if (mTexStorage)
{
ASSERT(isValidIndex(index));
ImageD3D *image = getImage(index);
gl::Error error = image->copyToStorage(mTexStorage, index, region);
if (error.isError())
{
return error;
}
image->markClean();
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D::getAttachmentRenderTarget(const gl::FramebufferAttachment::Target &target,
FramebufferAttachmentRenderTarget **rtOut)
{
RenderTargetD3D *rtD3D = nullptr;
gl::Error error = getRenderTarget(target.textureIndex(), &rtD3D);
*rtOut = static_cast<FramebufferAttachmentRenderTarget *>(rtD3D);
return error;
}
void TextureD3D::setBaseLevel(GLuint baseLevel)
{
const int oldStorageWidth = std::max(1, getLevelZeroWidth());
const int oldStorageHeight = std::max(1, getLevelZeroHeight());
const int oldStorageDepth = std::max(1, getLevelZeroDepth());
const int oldStorageFormat = getBaseLevelInternalFormat();
mBaseLevel = baseLevel;
// When the base level changes, the texture storage might not be valid anymore, since it could
// have been created based on the dimensions of the previous specified level range.
const int newStorageWidth = std::max(1, getLevelZeroWidth());
const int newStorageHeight = std::max(1, getLevelZeroHeight());
const int newStorageDepth = std::max(1, getLevelZeroDepth());
const int newStorageFormat = getBaseLevelInternalFormat();
if (mTexStorage &&
(newStorageWidth != oldStorageWidth || newStorageHeight != oldStorageHeight ||
newStorageDepth != oldStorageDepth || newStorageFormat != oldStorageFormat))
{
markAllImagesDirty();
SafeDelete(mTexStorage);
}
}
TextureD3D_2D::TextureD3D_2D(const gl::TextureState &state, RendererD3D *renderer)
: TextureD3D(state, renderer)
{
mEGLImageTarget = false;
for (int i = 0; i < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; ++i)
{
mImageArray[i] = renderer->createImage();
}
}
TextureD3D_2D::~TextureD3D_2D()
{
// Delete the Images before the TextureStorage.
// Images might be relying on the TextureStorage for some of their data.
// If TextureStorage is deleted before the Images, then their data will be wastefully copied back from the GPU before we delete the Images.
for (int i = 0; i < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; ++i)
{
delete mImageArray[i];
}
SafeDelete(mTexStorage);
}
ImageD3D *TextureD3D_2D::getImage(int level, int layer) const
{
ASSERT(level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
ASSERT(layer == 0);
return mImageArray[level];
}
ImageD3D *TextureD3D_2D::getImage(const gl::ImageIndex &index) const
{
ASSERT(index.mipIndex < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
ASSERT(!index.hasLayer());
ASSERT(index.type == GL_TEXTURE_2D);
return mImageArray[index.mipIndex];
}
GLsizei TextureD3D_2D::getLayerCount(int level) const
{
ASSERT(level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
return 1;
}
GLsizei TextureD3D_2D::getWidth(GLint level) const
{
if (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
return mImageArray[level]->getWidth();
else
return 0;
}
GLsizei TextureD3D_2D::getHeight(GLint level) const
{
if (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
return mImageArray[level]->getHeight();
else
return 0;
}
GLenum TextureD3D_2D::getInternalFormat(GLint level) const
{
if (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
return mImageArray[level]->getInternalFormat();
else
return GL_NONE;
}
bool TextureD3D_2D::isDepth(GLint level) const
{
return gl::GetInternalFormatInfo(getInternalFormat(level)).depthBits > 0;
}
gl::Error TextureD3D_2D::setImage(GLenum target,
size_t imageLevel,
GLenum internalFormat,
const gl::Extents &size,
GLenum format,
GLenum type,
const gl::PixelUnpackState &unpack,
const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_2D && size.depth == 1);
GLenum sizedInternalFormat = gl::GetSizedInternalFormat(internalFormat, type);
bool fastUnpacked = false;
GLint level = static_cast<GLint>(imageLevel);
redefineImage(level, sizedInternalFormat, size, false);
gl::ImageIndex index = gl::ImageIndex::Make2D(level);
// Attempt a fast gpu copy of the pixel data to the surface
if (isFastUnpackable(unpack, sizedInternalFormat) && isLevelComplete(level))
{
// Will try to create RT storage if it does not exist
RenderTargetD3D *destRenderTarget = NULL;
ANGLE_TRY(getRenderTarget(index, &destRenderTarget));
gl::Box destArea(0, 0, 0, getWidth(level), getHeight(level), 1);
ANGLE_TRY(fastUnpackPixels(unpack, pixels, destArea, sizedInternalFormat, type,
destRenderTarget));
// Ensure we don't overwrite our newly initialized data
mImageArray[level]->markClean();
fastUnpacked = true;
}
if (!fastUnpacked)
{
ANGLE_TRY(setImageImpl(index, type, unpack, pixels, 0));
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2D::setSubImage(GLenum target,
size_t imageLevel,
const gl::Box &area,
GLenum format,
GLenum type,
const gl::PixelUnpackState &unpack,
const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_2D && area.depth == 1 && area.z == 0);
GLint level = static_cast<GLint>(imageLevel);
gl::ImageIndex index = gl::ImageIndex::Make2D(level);
if (isFastUnpackable(unpack, getInternalFormat(level)) && isLevelComplete(level))
{
RenderTargetD3D *renderTarget = NULL;
ANGLE_TRY(getRenderTarget(index, &renderTarget));
ASSERT(!mImageArray[level]->isDirty());
return fastUnpackPixels(unpack, pixels, area, getInternalFormat(level), type, renderTarget);
}
else
{
return TextureD3D::subImage(index, area, format, type, unpack, pixels, 0);
}
}
gl::Error TextureD3D_2D::setCompressedImage(GLenum target,
size_t imageLevel,
GLenum internalFormat,
const gl::Extents &size,
const gl::PixelUnpackState &unpack,
size_t imageSize,
const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_2D && size.depth == 1);
GLint level = static_cast<GLint>(imageLevel);
// compressed formats don't have separate sized internal formats-- we can just use the compressed format directly
redefineImage(level, internalFormat, size, false);
return setCompressedImageImpl(gl::ImageIndex::Make2D(level), unpack, pixels, 0);
}
gl::Error TextureD3D_2D::setCompressedSubImage(GLenum target, size_t level, const gl::Box &area, GLenum format,
const gl::PixelUnpackState &unpack, size_t imageSize, const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_2D && area.depth == 1 && area.z == 0);
gl::ImageIndex index = gl::ImageIndex::Make2D(static_cast<GLint>(level));
ANGLE_TRY(TextureD3D::subImageCompressed(index, area, format, unpack, pixels, 0));
return commitRegion(index, area);
}
gl::Error TextureD3D_2D::copyImage(GLenum target,
size_t imageLevel,
const gl::Rectangle &sourceArea,
GLenum internalFormat,
const gl::Framebuffer *source)
{
ASSERT(target == GL_TEXTURE_2D);
GLint level = static_cast<GLint>(imageLevel);
GLenum sizedInternalFormat = gl::GetSizedInternalFormat(internalFormat, GL_UNSIGNED_BYTE);
redefineImage(level, sizedInternalFormat, gl::Extents(sourceArea.width, sourceArea.height, 1),
false);
gl::ImageIndex index = gl::ImageIndex::Make2D(level);
gl::Offset destOffset(0, 0, 0);
// If the zero max LOD workaround is active, then we can't sample from individual layers of the framebuffer in shaders,
// so we should use the non-rendering copy path.
if (!canCreateRenderTargetForImage(index) || mRenderer->getWorkarounds().zeroMaxLodWorkaround)
{
ANGLE_TRY(mImageArray[level]->copyFromFramebuffer(destOffset, sourceArea, source));
mDirtyImages = true;
}
else
{
ANGLE_TRY(ensureRenderTarget());
mImageArray[level]->markClean();
if (sourceArea.width != 0 && sourceArea.height != 0 && isValidLevel(level))
{
ANGLE_TRY(mRenderer->copyImage2D(source, sourceArea, internalFormat, destOffset,
mTexStorage, level));
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2D::copySubImage(GLenum target,
size_t imageLevel,
const gl::Offset &destOffset,
const gl::Rectangle &sourceArea,
const gl::Framebuffer *source)
{
ASSERT(target == GL_TEXTURE_2D && destOffset.z == 0);
// can only make our texture storage to a render target if level 0 is defined (with a width & height) and
// the current level we're copying to is defined (with appropriate format, width & height)
GLint level = static_cast<GLint>(imageLevel);
gl::ImageIndex index = gl::ImageIndex::Make2D(level);
// If the zero max LOD workaround is active, then we can't sample from individual layers of the framebuffer in shaders,
// so we should use the non-rendering copy path.
if (!canCreateRenderTargetForImage(index) || mRenderer->getWorkarounds().zeroMaxLodWorkaround)
{
ANGLE_TRY(mImageArray[level]->copyFromFramebuffer(destOffset, sourceArea, source));
mDirtyImages = true;
}
else
{
ANGLE_TRY(ensureRenderTarget());
if (isValidLevel(level))
{
ANGLE_TRY(updateStorageLevel(level));
ANGLE_TRY(mRenderer->copyImage2D(
source, sourceArea, gl::GetInternalFormatInfo(getBaseLevelInternalFormat()).format,
destOffset, mTexStorage, level));
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2D::setStorage(GLenum target, size_t levels, GLenum internalFormat, const gl::Extents &size)
{
ASSERT(GL_TEXTURE_2D && size.depth == 1);
for (size_t level = 0; level < levels; level++)
{
gl::Extents levelSize(std::max(1, size.width >> level),
std::max(1, size.height >> level),
1);
redefineImage(level, internalFormat, levelSize, true);
}
for (size_t level = levels; level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; level++)
{
redefineImage(level, GL_NONE, gl::Extents(0, 0, 1), true);
}
// TODO(geofflang): Verify storage creation had no errors
bool renderTarget = IsRenderTargetUsage(mState.getUsage());
TextureStorage *storage = mRenderer->createTextureStorage2D(
internalFormat, renderTarget, size.width, size.height, static_cast<int>(levels), false);
gl::Error error = setCompleteTexStorage(storage);
if (error.isError())
{
SafeDelete(storage);
return error;
}
error = updateStorage();
if (error.isError())
{
return error;
}
mImmutable = true;
return gl::Error(GL_NO_ERROR);
}
void TextureD3D_2D::bindTexImage(egl::Surface *surface)
{
GLenum internalformat = surface->getConfig()->renderTargetFormat;
gl::Extents size(surface->getWidth(), surface->getHeight(), 1);
redefineImage(0, internalformat, size, true);
if (mTexStorage)
{
SafeDelete(mTexStorage);
}
SurfaceD3D *surfaceD3D = GetImplAs<SurfaceD3D>(surface);
ASSERT(surfaceD3D);
mTexStorage = mRenderer->createTextureStorage2D(surfaceD3D->getSwapChain());
mEGLImageTarget = false;
mDirtyImages = true;
}
void TextureD3D_2D::releaseTexImage()
{
if (mTexStorage)
{
SafeDelete(mTexStorage);
}
for (int i = 0; i < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; i++)
{
redefineImage(i, GL_NONE, gl::Extents(0, 0, 1), true);
}
}
gl::Error TextureD3D_2D::setEGLImageTarget(GLenum target, egl::Image *image)
{
EGLImageD3D *eglImaged3d = GetImplAs<EGLImageD3D>(image);
// Set the properties of the base mip level from the EGL image
GLenum internalformat = image->getInternalFormat();
gl::Extents size(static_cast<int>(image->getWidth()), static_cast<int>(image->getHeight()), 1);
redefineImage(0, internalformat, size, true);
// Clear all other images.
for (size_t level = 1; level < ArraySize(mImageArray); level++)
{
redefineImage(level, GL_NONE, gl::Extents(0, 0, 1), true);
}
SafeDelete(mTexStorage);
mImageArray[0]->markClean();
mTexStorage = mRenderer->createTextureStorageEGLImage(eglImaged3d);
mEGLImageTarget = true;
return gl::Error(GL_NO_ERROR);
}
void TextureD3D_2D::initMipmapImages()
{
const GLuint baseLevel = mState.getEffectiveBaseLevel();
const GLuint maxLevel = mState.getMipmapMaxLevel();
// Purge array levels baseLevel + 1 through q and reset them to represent the generated mipmap
// levels.
for (GLuint level = baseLevel + 1; level <= maxLevel; level++)
{
gl::Extents levelSize(std::max(getLevelZeroWidth() >> level, 1),
std::max(getLevelZeroHeight() >> level, 1), 1);
redefineImage(level, getBaseLevelInternalFormat(), levelSize, false);
}
}
gl::Error TextureD3D_2D::getRenderTarget(const gl::ImageIndex &index, RenderTargetD3D **outRT)
{
ASSERT(!index.hasLayer());
// ensure the underlying texture is created
gl::Error error = ensureRenderTarget();
if (error.isError())
{
return error;
}
error = updateStorageLevel(index.mipIndex);
if (error.isError())
{
return error;
}
return mTexStorage->getRenderTarget(index, outRT);
}
bool TextureD3D_2D::isValidLevel(int level) const
{
return (mTexStorage ? (level >= 0 && level < mTexStorage->getLevelCount()) : false);
}
bool TextureD3D_2D::isLevelComplete(int level) const
{
if (isImmutable())
{
return true;
}
GLsizei width = getLevelZeroWidth();
GLsizei height = getLevelZeroHeight();
if (width <= 0 || height <= 0)
{
return false;
}
// The base image level is complete if the width and height are positive
if (level == static_cast<int>(getBaseLevel()))
{
return true;
}
ASSERT(level >= 0 && level <= (int)ArraySize(mImageArray) && mImageArray[level] != nullptr);
ImageD3D *image = mImageArray[level];
if (image->getInternalFormat() != getBaseLevelInternalFormat())
{
return false;
}
if (image->getWidth() != std::max(1, width >> level))
{
return false;
}
if (image->getHeight() != std::max(1, height >> level))
{
return false;
}
return true;
}
bool TextureD3D_2D::isImageComplete(const gl::ImageIndex &index) const
{
return isLevelComplete(index.mipIndex);
}
// Constructs a native texture resource from the texture images
gl::Error TextureD3D_2D::initializeStorage(bool renderTarget)
{
// Only initialize the first time this texture is used as a render target or shader resource
if (mTexStorage)
{
return gl::Error(GL_NO_ERROR);
}
// do not attempt to create storage for nonexistant data
if (!isLevelComplete(getBaseLevel()))
{
return gl::Error(GL_NO_ERROR);
}
bool createRenderTarget = (renderTarget || IsRenderTargetUsage(mState.getUsage()));
TextureStorage *storage = NULL;
gl::Error error = createCompleteStorage(createRenderTarget, &storage);
if (error.isError())
{
return error;
}
error = setCompleteTexStorage(storage);
if (error.isError())
{
SafeDelete(storage);
return error;
}
ASSERT(mTexStorage);
// flush image data to the storage
error = updateStorage();
if (error.isError())
{
return error;
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2D::createCompleteStorage(bool renderTarget, TextureStorage **outTexStorage) const
{
GLsizei width = getLevelZeroWidth();
GLsizei height = getLevelZeroHeight();
GLenum internalFormat = getBaseLevelInternalFormat();
ASSERT(width > 0 && height > 0);
// use existing storage level count, when previously specified by TexStorage*D
GLint levels = (mTexStorage ? mTexStorage->getLevelCount() : creationLevels(width, height, 1));
bool hintLevelZeroOnly = false;
if (mRenderer->getWorkarounds().zeroMaxLodWorkaround)
{
// If any of the CPU images (levels >= 1) are dirty, then the textureStorage2D should use the mipped texture to begin with.
// Otherwise, it should use the level-zero-only texture.
hintLevelZeroOnly = true;
for (int level = 1; level < levels && hintLevelZeroOnly; level++)
{
hintLevelZeroOnly = !(mImageArray[level]->isDirty() && isLevelComplete(level));
}
}
// TODO(geofflang): Determine if the texture creation succeeded
*outTexStorage = mRenderer->createTextureStorage2D(internalFormat, renderTarget, width, height, levels, hintLevelZeroOnly);
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2D::setCompleteTexStorage(TextureStorage *newCompleteTexStorage)
{
if (newCompleteTexStorage && newCompleteTexStorage->isManaged())
{
for (int level = 0; level < newCompleteTexStorage->getLevelCount(); level++)
{
gl::Error error = mImageArray[level]->setManagedSurface2D(newCompleteTexStorage, level);
if (error.isError())
{
return error;
}
}
}
SafeDelete(mTexStorage);
mTexStorage = newCompleteTexStorage;
mDirtyImages = true;
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2D::updateStorage()
{
ASSERT(mTexStorage != NULL);
GLint storageLevels = mTexStorage->getLevelCount();
for (int level = 0; level < storageLevels; level++)
{
if (mImageArray[level]->isDirty() && isLevelComplete(level))
{
gl::Error error = updateStorageLevel(level);
if (error.isError())
{
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2D::updateStorageLevel(int level)
{
ASSERT(level <= (int)ArraySize(mImageArray) && mImageArray[level] != NULL);
ASSERT(isLevelComplete(level));
if (mImageArray[level]->isDirty())
{
gl::ImageIndex index = gl::ImageIndex::Make2D(level);
gl::Box region(0, 0, 0, getWidth(level), getHeight(level), 1);
gl::Error error = commitRegion(index, region);
if (error.isError())
{
return error;
}
}
return gl::Error(GL_NO_ERROR);
}
void TextureD3D_2D::redefineImage(size_t level,
GLenum internalformat,
const gl::Extents &size,
bool forceRelease)
{
ASSERT(size.depth == 1);
// If there currently is a corresponding storage texture image, it has these parameters
const int storageWidth = std::max(1, getLevelZeroWidth() >> level);
const int storageHeight = std::max(1, getLevelZeroHeight() >> level);
const GLenum storageFormat = getBaseLevelInternalFormat();
mImageArray[level]->redefine(GL_TEXTURE_2D, internalformat, size, forceRelease);
if (mTexStorage)
{
const size_t storageLevels = mTexStorage->getLevelCount();
// If the storage was from an EGL image, copy it back into local images to preserve it
// while orphaning
if (level != 0 && mEGLImageTarget)
{
// TODO(jmadill): Don't discard error.
mImageArray[0]->copyFromTexStorage(gl::ImageIndex::Make2D(0), mTexStorage);
}
if ((level >= storageLevels && storageLevels != 0) ||
size.width != storageWidth ||
size.height != storageHeight ||
internalformat != storageFormat) // Discard mismatched storage
{
markAllImagesDirty();
SafeDelete(mTexStorage);
}
}
// Can't be an EGL image target after being redefined
mEGLImageTarget = false;
}
gl::ImageIndexIterator TextureD3D_2D::imageIterator() const
{
return gl::ImageIndexIterator::Make2D(0, mTexStorage->getLevelCount());
}
gl::ImageIndex TextureD3D_2D::getImageIndex(GLint mip, GLint /*layer*/) const
{
// "layer" does not apply to 2D Textures.
return gl::ImageIndex::Make2D(mip);
}
bool TextureD3D_2D::isValidIndex(const gl::ImageIndex &index) const
{
return (mTexStorage && index.type == GL_TEXTURE_2D &&
index.mipIndex >= 0 && index.mipIndex < mTexStorage->getLevelCount());
}
void TextureD3D_2D::markAllImagesDirty()
{
for (size_t i = 0; i < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; i++)
{
mImageArray[i]->markDirty();
}
mDirtyImages = true;
}
TextureD3D_Cube::TextureD3D_Cube(const gl::TextureState &state, RendererD3D *renderer)
: TextureD3D(state, renderer)
{
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; ++j)
{
mImageArray[i][j] = renderer->createImage();
}
}
}
TextureD3D_Cube::~TextureD3D_Cube()
{
// Delete the Images before the TextureStorage.
// Images might be relying on the TextureStorage for some of their data.
// If TextureStorage is deleted before the Images, then their data will be wastefully copied back from the GPU before we delete the Images.
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; ++j)
{
SafeDelete(mImageArray[i][j]);
}
}
SafeDelete(mTexStorage);
}
ImageD3D *TextureD3D_Cube::getImage(int level, int layer) const
{
ASSERT(level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
ASSERT(layer >= 0 && layer < 6);
return mImageArray[layer][level];
}
ImageD3D *TextureD3D_Cube::getImage(const gl::ImageIndex &index) const
{
ASSERT(index.mipIndex < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
ASSERT(index.layerIndex >= 0 && index.layerIndex < 6);
return mImageArray[index.layerIndex][index.mipIndex];
}
GLsizei TextureD3D_Cube::getLayerCount(int level) const
{
ASSERT(level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
return 6;
}
GLenum TextureD3D_Cube::getInternalFormat(GLint level, GLint layer) const
{
if (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
return mImageArray[layer][level]->getInternalFormat();
else
return GL_NONE;
}
bool TextureD3D_Cube::isDepth(GLint level, GLint layer) const
{
return gl::GetInternalFormatInfo(getInternalFormat(level, layer)).depthBits > 0;
}
gl::Error TextureD3D_Cube::setEGLImageTarget(GLenum target, egl::Image *image)
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D_Cube::setImage(GLenum target, size_t level, GLenum internalFormat, const gl::Extents &size, GLenum format, GLenum type,
const gl::PixelUnpackState &unpack, const uint8_t *pixels)
{
ASSERT(size.depth == 1);
GLenum sizedInternalFormat = gl::GetSizedInternalFormat(internalFormat, type);
gl::ImageIndex index = gl::ImageIndex::MakeCube(target, static_cast<GLint>(level));
redefineImage(index.layerIndex, static_cast<GLint>(level), sizedInternalFormat, size);
return setImageImpl(index, type, unpack, pixels, 0);
}
gl::Error TextureD3D_Cube::setSubImage(GLenum target, size_t level, const gl::Box &area, GLenum format, GLenum type,
const gl::PixelUnpackState &unpack, const uint8_t *pixels)
{
ASSERT(area.depth == 1 && area.z == 0);
gl::ImageIndex index = gl::ImageIndex::MakeCube(target, static_cast<GLint>(level));
return TextureD3D::subImage(index, area, format, type, unpack, pixels, 0);
}
gl::Error TextureD3D_Cube::setCompressedImage(GLenum target, size_t level, GLenum internalFormat, const gl::Extents &size,
const gl::PixelUnpackState &unpack, size_t imageSize, const uint8_t *pixels)
{
ASSERT(size.depth == 1);
// compressed formats don't have separate sized internal formats-- we can just use the compressed format directly
size_t faceIndex = gl::CubeMapTextureTargetToLayerIndex(target);
redefineImage(static_cast<int>(faceIndex), static_cast<GLint>(level), internalFormat, size);
gl::ImageIndex index = gl::ImageIndex::MakeCube(target, static_cast<GLint>(level));
return setCompressedImageImpl(index, unpack, pixels, 0);
}
gl::Error TextureD3D_Cube::setCompressedSubImage(GLenum target, size_t level, const gl::Box &area, GLenum format,
const gl::PixelUnpackState &unpack, size_t imageSize, const uint8_t *pixels)
{
ASSERT(area.depth == 1 && area.z == 0);
gl::ImageIndex index = gl::ImageIndex::MakeCube(target, static_cast<GLint>(level));
gl::Error error = TextureD3D::subImageCompressed(index, area, format, unpack, pixels, 0);
if (error.isError())
{
return error;
}
return commitRegion(index, area);
}
gl::Error TextureD3D_Cube::copyImage(GLenum target,
size_t imageLevel,
const gl::Rectangle &sourceArea,
GLenum internalFormat,
const gl::Framebuffer *source)
{
int faceIndex = static_cast<int>(gl::CubeMapTextureTargetToLayerIndex(target));
GLenum sizedInternalFormat = gl::GetSizedInternalFormat(internalFormat, GL_UNSIGNED_BYTE);
GLint level = static_cast<GLint>(imageLevel);
gl::Extents size(sourceArea.width, sourceArea.height, 1);
redefineImage(static_cast<int>(faceIndex), level, sizedInternalFormat, size);
gl::ImageIndex index = gl::ImageIndex::MakeCube(target, level);
gl::Offset destOffset(0, 0, 0);
// If the zero max LOD workaround is active, then we can't sample from individual layers of the framebuffer in shaders,
// so we should use the non-rendering copy path.
if (!canCreateRenderTargetForImage(index) || mRenderer->getWorkarounds().zeroMaxLodWorkaround)
{
gl::Error error =
mImageArray[faceIndex][level]->copyFromFramebuffer(destOffset, sourceArea, source);
if (error.isError())
{
return error;
}
mDirtyImages = true;
}
else
{
gl::Error error = ensureRenderTarget();
if (error.isError())
{
return error;
}
mImageArray[faceIndex][level]->markClean();
ASSERT(size.width == size.height);
if (size.width > 0 && isValidFaceLevel(faceIndex, level))
{
error = mRenderer->copyImageCube(source, sourceArea, internalFormat, destOffset, mTexStorage, target, level);
if (error.isError())
{
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_Cube::copySubImage(GLenum target,
size_t imageLevel,
const gl::Offset &destOffset,
const gl::Rectangle &sourceArea,
const gl::Framebuffer *source)
{
int faceIndex = static_cast<int>(gl::CubeMapTextureTargetToLayerIndex(target));
GLint level = static_cast<GLint>(imageLevel);
gl::ImageIndex index = gl::ImageIndex::MakeCube(target, level);
// If the zero max LOD workaround is active, then we can't sample from individual layers of the framebuffer in shaders,
// so we should use the non-rendering copy path.
if (!canCreateRenderTargetForImage(index) || mRenderer->getWorkarounds().zeroMaxLodWorkaround)
{
gl::Error error =
mImageArray[faceIndex][level]->copyFromFramebuffer(destOffset, sourceArea, source);
if (error.isError())
{
return error;
}
mDirtyImages = true;
}
else
{
gl::Error error = ensureRenderTarget();
if (error.isError())
{
return error;
}
if (isValidFaceLevel(faceIndex, level))
{
error = updateStorageFaceLevel(faceIndex, level);
if (error.isError())
{
return error;
}
error = mRenderer->copyImageCube(source, sourceArea, gl::GetInternalFormatInfo(getBaseLevelInternalFormat()).format,
destOffset, mTexStorage, target, level);
if (error.isError())
{
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_Cube::setStorage(GLenum target, size_t levels, GLenum internalFormat, const gl::Extents &size)
{
ASSERT(size.width == size.height);
ASSERT(size.depth == 1);
for (size_t level = 0; level < levels; level++)
{
GLsizei mipSize = std::max(1, size.width >> level);
for (int faceIndex = 0; faceIndex < 6; faceIndex++)
{
mImageArray[faceIndex][level]->redefine(GL_TEXTURE_CUBE_MAP, internalFormat, gl::Extents(mipSize, mipSize, 1), true);
}
}
for (size_t level = levels; level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; level++)
{
for (int faceIndex = 0; faceIndex < 6; faceIndex++)
{
mImageArray[faceIndex][level]->redefine(GL_TEXTURE_CUBE_MAP, GL_NONE, gl::Extents(0, 0, 0), true);
}
}
// TODO(geofflang): Verify storage creation had no errors
bool renderTarget = IsRenderTargetUsage(mState.getUsage());
TextureStorage *storage = mRenderer->createTextureStorageCube(
internalFormat, renderTarget, size.width, static_cast<int>(levels), false);
gl::Error error = setCompleteTexStorage(storage);
if (error.isError())
{
SafeDelete(storage);
return error;
}
error = updateStorage();
if (error.isError())
{
return error;
}
mImmutable = true;
return gl::Error(GL_NO_ERROR);
}
// Tests for cube texture completeness. [OpenGL ES 2.0.24] section 3.7.10 page 81.
bool TextureD3D_Cube::isCubeComplete() const
{
int baseWidth = getBaseLevelWidth();
int baseHeight = getBaseLevelHeight();
GLenum baseFormat = getBaseLevelInternalFormat();
if (baseWidth <= 0 || baseWidth != baseHeight)
{
return false;
}
for (int faceIndex = 1; faceIndex < 6; faceIndex++)
{
const ImageD3D &faceBaseImage = *mImageArray[faceIndex][getBaseLevel()];
if (faceBaseImage.getWidth() != baseWidth ||
faceBaseImage.getHeight() != baseHeight ||
faceBaseImage.getInternalFormat() != baseFormat )
{
return false;
}
}
return true;
}
void TextureD3D_Cube::bindTexImage(egl::Surface *surface)
{
UNREACHABLE();
}
void TextureD3D_Cube::releaseTexImage()
{
UNREACHABLE();
}
void TextureD3D_Cube::initMipmapImages()
{
const GLuint baseLevel = mState.getEffectiveBaseLevel();
const GLuint maxLevel = mState.getMipmapMaxLevel();
// Purge array levels baseLevel + 1 through q and reset them to represent the generated mipmap
// levels.
for (int faceIndex = 0; faceIndex < 6; faceIndex++)
{
for (GLuint level = baseLevel + 1; level <= maxLevel; level++)
{
int faceLevelSize =
(std::max(mImageArray[faceIndex][baseLevel]->getWidth() >> (level - baseLevel), 1));
redefineImage(faceIndex, level, mImageArray[faceIndex][baseLevel]->getInternalFormat(),
gl::Extents(faceLevelSize, faceLevelSize, 1));
}
}
}
gl::Error TextureD3D_Cube::getRenderTarget(const gl::ImageIndex &index, RenderTargetD3D **outRT)
{
ASSERT(gl::IsCubeMapTextureTarget(index.type));
// ensure the underlying texture is created
gl::Error error = ensureRenderTarget();
if (error.isError())
{
return error;
}
error = updateStorageFaceLevel(index.layerIndex, index.mipIndex);
if (error.isError())
{
return error;
}
return mTexStorage->getRenderTarget(index, outRT);
}
gl::Error TextureD3D_Cube::initializeStorage(bool renderTarget)
{
// Only initialize the first time this texture is used as a render target or shader resource
if (mTexStorage)
{
return gl::Error(GL_NO_ERROR);
}
// do not attempt to create storage for nonexistant data
if (!isFaceLevelComplete(0, getBaseLevel()))
{
return gl::Error(GL_NO_ERROR);
}
bool createRenderTarget = (renderTarget || IsRenderTargetUsage(mState.getUsage()));
TextureStorage *storage = NULL;
gl::Error error = createCompleteStorage(createRenderTarget, &storage);
if (error.isError())
{
return error;
}
error = setCompleteTexStorage(storage);
if (error.isError())
{
SafeDelete(storage);
return error;
}
ASSERT(mTexStorage);
// flush image data to the storage
error = updateStorage();
if (error.isError())
{
return error;
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_Cube::createCompleteStorage(bool renderTarget, TextureStorage **outTexStorage) const
{
GLsizei size = getLevelZeroWidth();
ASSERT(size > 0);
// use existing storage level count, when previously specified by TexStorage*D
GLint levels = (mTexStorage ? mTexStorage->getLevelCount() : creationLevels(size, size, 1));
bool hintLevelZeroOnly = false;
if (mRenderer->getWorkarounds().zeroMaxLodWorkaround)
{
// If any of the CPU images (levels >= 1) are dirty, then the textureStorage should use the mipped texture to begin with.
// Otherwise, it should use the level-zero-only texture.
hintLevelZeroOnly = true;
for (int faceIndex = 0; faceIndex < 6 && hintLevelZeroOnly; faceIndex++)
{
for (int level = 1; level < levels && hintLevelZeroOnly; level++)
{
hintLevelZeroOnly = !(mImageArray[faceIndex][level]->isDirty() && isFaceLevelComplete(faceIndex, level));
}
}
}
// TODO (geofflang): detect if storage creation succeeded
*outTexStorage = mRenderer->createTextureStorageCube(getBaseLevelInternalFormat(), renderTarget, size, levels, hintLevelZeroOnly);
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_Cube::setCompleteTexStorage(TextureStorage *newCompleteTexStorage)
{
if (newCompleteTexStorage && newCompleteTexStorage->isManaged())
{
for (int faceIndex = 0; faceIndex < 6; faceIndex++)
{
for (int level = 0; level < newCompleteTexStorage->getLevelCount(); level++)
{
gl::Error error = mImageArray[faceIndex][level]->setManagedSurfaceCube(newCompleteTexStorage, faceIndex, level);
if (error.isError())
{
return error;
}
}
}
}
SafeDelete(mTexStorage);
mTexStorage = newCompleteTexStorage;
mDirtyImages = true;
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_Cube::updateStorage()
{
ASSERT(mTexStorage != NULL);
GLint storageLevels = mTexStorage->getLevelCount();
for (int face = 0; face < 6; face++)
{
for (int level = 0; level < storageLevels; level++)
{
if (mImageArray[face][level]->isDirty() && isFaceLevelComplete(face, level))
{
gl::Error error = updateStorageFaceLevel(face, level);
if (error.isError())
{
return error;
}
}
}
}
return gl::Error(GL_NO_ERROR);
}
bool TextureD3D_Cube::isValidFaceLevel(int faceIndex, int level) const
{
return (mTexStorage ? (level >= 0 && level < mTexStorage->getLevelCount()) : 0);
}
bool TextureD3D_Cube::isFaceLevelComplete(int faceIndex, int level) const
{
if (getBaseLevel() >= gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
{
return false;
}
ASSERT(level >= 0 && faceIndex < 6 && level < (int)ArraySize(mImageArray[faceIndex]) &&
mImageArray[faceIndex][level] != nullptr);
if (isImmutable())
{
return true;
}
int levelZeroSize = getLevelZeroWidth();
if (levelZeroSize <= 0)
{
return false;
}
// "isCubeComplete" checks for base level completeness and we must call that
// to determine if any face at level 0 is complete. We omit that check here
// to avoid re-checking cube-completeness for every face at level 0.
if (level == 0)
{
return true;
}
// Check that non-zero levels are consistent with the base level.
const ImageD3D *faceLevelImage = mImageArray[faceIndex][level];
if (faceLevelImage->getInternalFormat() != getBaseLevelInternalFormat())
{
return false;
}
if (faceLevelImage->getWidth() != std::max(1, levelZeroSize >> level))
{
return false;
}
return true;
}
bool TextureD3D_Cube::isImageComplete(const gl::ImageIndex &index) const
{
return isFaceLevelComplete(index.layerIndex, index.mipIndex);
}
gl::Error TextureD3D_Cube::updateStorageFaceLevel(int faceIndex, int level)
{
ASSERT(level >= 0 && faceIndex < 6 && level < (int)ArraySize(mImageArray[faceIndex]) && mImageArray[faceIndex][level] != NULL);
ImageD3D *image = mImageArray[faceIndex][level];
if (image->isDirty())
{
GLenum faceTarget = gl::LayerIndexToCubeMapTextureTarget(faceIndex);
gl::ImageIndex index = gl::ImageIndex::MakeCube(faceTarget, level);
gl::Box region(0, 0, 0, image->getWidth(), image->getHeight(), 1);
gl::Error error = commitRegion(index, region);
if (error.isError())
{
return error;
}
}
return gl::Error(GL_NO_ERROR);
}
void TextureD3D_Cube::redefineImage(int faceIndex, GLint level, GLenum internalformat, const gl::Extents &size)
{
// If there currently is a corresponding storage texture image, it has these parameters
const int storageWidth = std::max(1, getLevelZeroWidth() >> level);
const int storageHeight = std::max(1, getLevelZeroHeight() >> level);
const GLenum storageFormat = getBaseLevelInternalFormat();
mImageArray[faceIndex][level]->redefine(GL_TEXTURE_CUBE_MAP, internalformat, size, false);
if (mTexStorage)
{
const int storageLevels = mTexStorage->getLevelCount();
if ((level >= storageLevels && storageLevels != 0) ||
size.width != storageWidth ||
size.height != storageHeight ||
internalformat != storageFormat) // Discard mismatched storage
{
markAllImagesDirty();
SafeDelete(mTexStorage);
}
}
}
gl::ImageIndexIterator TextureD3D_Cube::imageIterator() const
{
return gl::ImageIndexIterator::MakeCube(0, mTexStorage->getLevelCount());
}
gl::ImageIndex TextureD3D_Cube::getImageIndex(GLint mip, GLint layer) const
{
// The "layer" of the image index corresponds to the cube face
return gl::ImageIndex::MakeCube(gl::LayerIndexToCubeMapTextureTarget(layer), mip);
}
bool TextureD3D_Cube::isValidIndex(const gl::ImageIndex &index) const
{
return (mTexStorage && gl::IsCubeMapTextureTarget(index.type) &&
index.mipIndex >= 0 && index.mipIndex < mTexStorage->getLevelCount());
}
void TextureD3D_Cube::markAllImagesDirty()
{
for (int dirtyLevel = 0; dirtyLevel < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; dirtyLevel++)
{
for (int dirtyFace = 0; dirtyFace < 6; dirtyFace++)
{
mImageArray[dirtyFace][dirtyLevel]->markDirty();
}
}
mDirtyImages = true;
}
TextureD3D_3D::TextureD3D_3D(const gl::TextureState &state, RendererD3D *renderer)
: TextureD3D(state, renderer)
{
for (int i = 0; i < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; ++i)
{
mImageArray[i] = renderer->createImage();
}
}
TextureD3D_3D::~TextureD3D_3D()
{
// Delete the Images before the TextureStorage.
// Images might be relying on the TextureStorage for some of their data.
// If TextureStorage is deleted before the Images, then their data will be wastefully copied back from the GPU before we delete the Images.
for (int i = 0; i < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; ++i)
{
delete mImageArray[i];
}
SafeDelete(mTexStorage);
}
ImageD3D *TextureD3D_3D::getImage(int level, int layer) const
{
ASSERT(level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
ASSERT(layer == 0);
return mImageArray[level];
}
ImageD3D *TextureD3D_3D::getImage(const gl::ImageIndex &index) const
{
ASSERT(index.mipIndex < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
ASSERT(!index.hasLayer());
ASSERT(index.type == GL_TEXTURE_3D);
return mImageArray[index.mipIndex];
}
GLsizei TextureD3D_3D::getLayerCount(int level) const
{
ASSERT(level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
return 1;
}
GLsizei TextureD3D_3D::getWidth(GLint level) const
{
if (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
return mImageArray[level]->getWidth();
else
return 0;
}
GLsizei TextureD3D_3D::getHeight(GLint level) const
{
if (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
return mImageArray[level]->getHeight();
else
return 0;
}
GLsizei TextureD3D_3D::getDepth(GLint level) const
{
if (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
return mImageArray[level]->getDepth();
else
return 0;
}
GLenum TextureD3D_3D::getInternalFormat(GLint level) const
{
if (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
return mImageArray[level]->getInternalFormat();
else
return GL_NONE;
}
bool TextureD3D_3D::isDepth(GLint level) const
{
return gl::GetInternalFormatInfo(getInternalFormat(level)).depthBits > 0;
}
gl::Error TextureD3D_3D::setEGLImageTarget(GLenum target, egl::Image *image)
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D_3D::setImage(GLenum target,
size_t imageLevel,
GLenum internalFormat,
const gl::Extents &size,
GLenum format,
GLenum type,
const gl::PixelUnpackState &unpack,
const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_3D);
GLenum sizedInternalFormat = gl::GetSizedInternalFormat(internalFormat, type);
GLint level = static_cast<GLint>(imageLevel);
redefineImage(level, sizedInternalFormat, size);
bool fastUnpacked = false;
gl::ImageIndex index = gl::ImageIndex::Make3D(level);
// Attempt a fast gpu copy of the pixel data to the surface if the app bound an unpack buffer
if (isFastUnpackable(unpack, sizedInternalFormat) && !size.empty() && isLevelComplete(level))
{
// Will try to create RT storage if it does not exist
RenderTargetD3D *destRenderTarget = NULL;
gl::Error error = getRenderTarget(index, &destRenderTarget);
if (error.isError())
{
return error;
}
gl::Box destArea(0, 0, 0, getWidth(level), getHeight(level), getDepth(level));
error = fastUnpackPixels(unpack, pixels, destArea, sizedInternalFormat, type, destRenderTarget);
if (error.isError())
{
return error;
}
// Ensure we don't overwrite our newly initialized data
mImageArray[level]->markClean();
fastUnpacked = true;
}
if (!fastUnpacked)
{
gl::Error error = setImageImpl(index, type, unpack, pixels, 0);
if (error.isError())
{
return error;
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_3D::setSubImage(GLenum target,
size_t imageLevel,
const gl::Box &area,
GLenum format,
GLenum type,
const gl::PixelUnpackState &unpack,
const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_3D);
GLint level = static_cast<GLint>(imageLevel);
gl::ImageIndex index = gl::ImageIndex::Make3D(level);
// Attempt a fast gpu copy of the pixel data to the surface if the app bound an unpack buffer
if (isFastUnpackable(unpack, getInternalFormat(level)) && isLevelComplete(level))
{
RenderTargetD3D *destRenderTarget = NULL;
gl::Error error = getRenderTarget(index, &destRenderTarget);
if (error.isError())
{
return error;
}
ASSERT(!mImageArray[level]->isDirty());
return fastUnpackPixels(unpack, pixels, area, getInternalFormat(level), type, destRenderTarget);
}
else
{
return TextureD3D::subImage(index, area, format, type, unpack, pixels, 0);
}
}
gl::Error TextureD3D_3D::setCompressedImage(GLenum target,
size_t imageLevel,
GLenum internalFormat,
const gl::Extents &size,
const gl::PixelUnpackState &unpack,
size_t imageSize,
const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_3D);
GLint level = static_cast<GLint>(imageLevel);
// compressed formats don't have separate sized internal formats-- we can just use the compressed format directly
redefineImage(level, internalFormat, size);
gl::ImageIndex index = gl::ImageIndex::Make3D(level);
return setCompressedImageImpl(index, unpack, pixels, 0);
}
gl::Error TextureD3D_3D::setCompressedSubImage(GLenum target, size_t level, const gl::Box &area, GLenum format,
const gl::PixelUnpackState &unpack, size_t imageSize, const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_3D);
gl::ImageIndex index = gl::ImageIndex::Make3D(static_cast<GLint>(level));
gl::Error error = TextureD3D::subImageCompressed(index, area, format, unpack, pixels, 0);
if (error.isError())
{
return error;
}
return commitRegion(index, area);
}
gl::Error TextureD3D_3D::copyImage(GLenum target, size_t level, const gl::Rectangle &sourceArea, GLenum internalFormat,
const gl::Framebuffer *source)
{
UNIMPLEMENTED();
return gl::Error(GL_INVALID_OPERATION, "Copying 3D textures is unimplemented.");
}
gl::Error TextureD3D_3D::copySubImage(GLenum target,
size_t imageLevel,
const gl::Offset &destOffset,
const gl::Rectangle &sourceArea,
const gl::Framebuffer *source)
{
ASSERT(target == GL_TEXTURE_3D);
GLint level = static_cast<GLint>(imageLevel);
gl::ImageIndex index = gl::ImageIndex::Make3D(level);
if (canCreateRenderTargetForImage(index))
{
gl::Error error = mImageArray[level]->copyFromFramebuffer(destOffset, sourceArea, source);
if (error.isError())
{
return error;
}
mDirtyImages = true;
}
else
{
gl::Error error = ensureRenderTarget();
if (error.isError())
{
return error;
}
if (isValidLevel(level))
{
error = updateStorageLevel(level);
if (error.isError())
{
return error;
}
error = mRenderer->copyImage3D(source, sourceArea,
gl::GetInternalFormatInfo(getBaseLevelInternalFormat()).format,
destOffset, mTexStorage, level);
if (error.isError())
{
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_3D::setStorage(GLenum target, size_t levels, GLenum internalFormat, const gl::Extents &size)
{
ASSERT(target == GL_TEXTURE_3D);
for (size_t level = 0; level < levels; level++)
{
gl::Extents levelSize(std::max(1, size.width >> level),
std::max(1, size.height >> level),
std::max(1, size.depth >> level));
mImageArray[level]->redefine(GL_TEXTURE_3D, internalFormat, levelSize, true);
}
for (size_t level = levels; level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; level++)
{
mImageArray[level]->redefine(GL_TEXTURE_3D, GL_NONE, gl::Extents(0, 0, 0), true);
}
// TODO(geofflang): Verify storage creation had no errors
bool renderTarget = IsRenderTargetUsage(mState.getUsage());
TextureStorage *storage =
mRenderer->createTextureStorage3D(internalFormat, renderTarget, size.width, size.height,
size.depth, static_cast<int>(levels));
gl::Error error = setCompleteTexStorage(storage);
if (error.isError())
{
SafeDelete(storage);
return error;
}
error = updateStorage();
if (error.isError())
{
return error;
}
mImmutable = true;
return gl::Error(GL_NO_ERROR);
}
void TextureD3D_3D::bindTexImage(egl::Surface *surface)
{
UNREACHABLE();
}
void TextureD3D_3D::releaseTexImage()
{
UNREACHABLE();
}
void TextureD3D_3D::initMipmapImages()
{
const GLuint baseLevel = mState.getEffectiveBaseLevel();
const GLuint maxLevel = mState.getMipmapMaxLevel();
// Purge array levels baseLevel + 1 through q and reset them to represent the generated mipmap
// levels.
for (GLuint level = baseLevel + 1; level <= maxLevel; level++)
{
gl::Extents levelSize(std::max(getLevelZeroWidth() >> level, 1),
std::max(getLevelZeroHeight() >> level, 1),
std::max(getLevelZeroDepth() >> level, 1));
redefineImage(level, getBaseLevelInternalFormat(), levelSize);
}
}
gl::Error TextureD3D_3D::getRenderTarget(const gl::ImageIndex &index, RenderTargetD3D **outRT)
{
// ensure the underlying texture is created
gl::Error error = ensureRenderTarget();
if (error.isError())
{
return error;
}
if (index.hasLayer())
{
error = updateStorage();
if (error.isError())
{
return error;
}
}
else
{
error = updateStorageLevel(index.mipIndex);
if (error.isError())
{
return error;
}
}
return mTexStorage->getRenderTarget(index, outRT);
}
gl::Error TextureD3D_3D::initializeStorage(bool renderTarget)
{
// Only initialize the first time this texture is used as a render target or shader resource
if (mTexStorage)
{
return gl::Error(GL_NO_ERROR);
}
// do not attempt to create storage for nonexistant data
if (!isLevelComplete(getBaseLevel()))
{
return gl::Error(GL_NO_ERROR);
}
bool createRenderTarget = (renderTarget || IsRenderTargetUsage(mState.getUsage()));
TextureStorage *storage = NULL;
gl::Error error = createCompleteStorage(createRenderTarget, &storage);
if (error.isError())
{
return error;
}
error = setCompleteTexStorage(storage);
if (error.isError())
{
SafeDelete(storage);
return error;
}
ASSERT(mTexStorage);
// flush image data to the storage
error = updateStorage();
if (error.isError())
{
return error;
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_3D::createCompleteStorage(bool renderTarget, TextureStorage **outStorage) const
{
GLsizei width = getLevelZeroWidth();
GLsizei height = getLevelZeroHeight();
GLsizei depth = getLevelZeroDepth();
GLenum internalFormat = getBaseLevelInternalFormat();
ASSERT(width > 0 && height > 0 && depth > 0);
// use existing storage level count, when previously specified by TexStorage*D
GLint levels = (mTexStorage ? mTexStorage->getLevelCount() : creationLevels(width, height, depth));
// TODO: Verify creation of the storage succeeded
*outStorage = mRenderer->createTextureStorage3D(internalFormat, renderTarget, width, height, depth, levels);
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_3D::setCompleteTexStorage(TextureStorage *newCompleteTexStorage)
{
SafeDelete(mTexStorage);
mTexStorage = newCompleteTexStorage;
mDirtyImages = true;
// We do not support managed 3D storage, as that is D3D9/ES2-only
ASSERT(!mTexStorage->isManaged());
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_3D::updateStorage()
{
ASSERT(mTexStorage != NULL);
GLint storageLevels = mTexStorage->getLevelCount();
for (int level = 0; level < storageLevels; level++)
{
if (mImageArray[level]->isDirty() && isLevelComplete(level))
{
gl::Error error = updateStorageLevel(level);
if (error.isError())
{
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
bool TextureD3D_3D::isValidLevel(int level) const
{
return (mTexStorage ? (level >= 0 && level < mTexStorage->getLevelCount()) : 0);
}
bool TextureD3D_3D::isLevelComplete(int level) const
{
ASSERT(level >= 0 && level < (int)ArraySize(mImageArray) && mImageArray[level] != NULL);
if (isImmutable())
{
return true;
}
GLsizei width = getLevelZeroWidth();
GLsizei height = getLevelZeroHeight();
GLsizei depth = getLevelZeroDepth();
if (width <= 0 || height <= 0 || depth <= 0)
{
return false;
}
if (level == static_cast<int>(getBaseLevel()))
{
return true;
}
ImageD3D *levelImage = mImageArray[level];
if (levelImage->getInternalFormat() != getBaseLevelInternalFormat())
{
return false;
}
if (levelImage->getWidth() != std::max(1, width >> level))
{
return false;
}
if (levelImage->getHeight() != std::max(1, height >> level))
{
return false;
}
if (levelImage->getDepth() != std::max(1, depth >> level))
{
return false;
}
return true;
}
bool TextureD3D_3D::isImageComplete(const gl::ImageIndex &index) const
{
return isLevelComplete(index.mipIndex);
}
gl::Error TextureD3D_3D::updateStorageLevel(int level)
{
ASSERT(level >= 0 && level < (int)ArraySize(mImageArray) && mImageArray[level] != NULL);
ASSERT(isLevelComplete(level));
if (mImageArray[level]->isDirty())
{
gl::ImageIndex index = gl::ImageIndex::Make3D(level);
gl::Box region(0, 0, 0, getWidth(level), getHeight(level), getDepth(level));
gl::Error error = commitRegion(index, region);
if (error.isError())
{
return error;
}
}
return gl::Error(GL_NO_ERROR);
}
void TextureD3D_3D::redefineImage(GLint level, GLenum internalformat, const gl::Extents &size)
{
// If there currently is a corresponding storage texture image, it has these parameters
const int storageWidth = std::max(1, getLevelZeroWidth() >> level);
const int storageHeight = std::max(1, getLevelZeroHeight() >> level);
const int storageDepth = std::max(1, getLevelZeroDepth() >> level);
mImageArray[level]->redefine(GL_TEXTURE_3D, internalformat, size, false);
if (mTexStorage)
{
const GLenum storageFormat = getBaseLevelInternalFormat();
const int storageLevels = mTexStorage->getLevelCount();
if ((level >= storageLevels && storageLevels != 0) ||
size.width != storageWidth ||
size.height != storageHeight ||
size.depth != storageDepth ||
internalformat != storageFormat) // Discard mismatched storage
{
markAllImagesDirty();
SafeDelete(mTexStorage);
}
}
}
gl::ImageIndexIterator TextureD3D_3D::imageIterator() const
{
return gl::ImageIndexIterator::Make3D(0, mTexStorage->getLevelCount(),
gl::ImageIndex::ENTIRE_LEVEL, gl::ImageIndex::ENTIRE_LEVEL);
}
gl::ImageIndex TextureD3D_3D::getImageIndex(GLint mip, GLint /*layer*/) const
{
// The "layer" here does not apply to 3D images. We use one Image per mip.
return gl::ImageIndex::Make3D(mip);
}
bool TextureD3D_3D::isValidIndex(const gl::ImageIndex &index) const
{
return (mTexStorage && index.type == GL_TEXTURE_3D &&
index.mipIndex >= 0 && index.mipIndex < mTexStorage->getLevelCount());
}
void TextureD3D_3D::markAllImagesDirty()
{
for (int i = 0; i < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; i++)
{
mImageArray[i]->markDirty();
}
mDirtyImages = true;
}
GLint TextureD3D_3D::getLevelZeroDepth() const
{
ASSERT(gl::CountLeadingZeros(static_cast<uint32_t>(getBaseLevelDepth())) > getBaseLevel());
return getBaseLevelDepth() << getBaseLevel();
}
TextureD3D_2DArray::TextureD3D_2DArray(const gl::TextureState &state, RendererD3D *renderer)
: TextureD3D(state, renderer)
{
for (int level = 0; level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; ++level)
{
mLayerCounts[level] = 0;
mImageArray[level] = NULL;
}
}
TextureD3D_2DArray::~TextureD3D_2DArray()
{
// Delete the Images before the TextureStorage.
// Images might be relying on the TextureStorage for some of their data.
// If TextureStorage is deleted before the Images, then their data will be wastefully copied back from the GPU before we delete the Images.
deleteImages();
SafeDelete(mTexStorage);
}
ImageD3D *TextureD3D_2DArray::getImage(int level, int layer) const
{
ASSERT(level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
ASSERT((layer == 0 && mLayerCounts[level] == 0) ||
layer < mLayerCounts[level]);
return (mImageArray[level] ? mImageArray[level][layer] : NULL);
}
ImageD3D *TextureD3D_2DArray::getImage(const gl::ImageIndex &index) const
{
ASSERT(index.mipIndex < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
ASSERT((index.layerIndex == 0 && mLayerCounts[index.mipIndex] == 0) ||
index.layerIndex < mLayerCounts[index.mipIndex]);
ASSERT(index.type == GL_TEXTURE_2D_ARRAY);
return (mImageArray[index.mipIndex] ? mImageArray[index.mipIndex][index.layerIndex] : NULL);
}
GLsizei TextureD3D_2DArray::getLayerCount(int level) const
{
ASSERT(level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS);
return mLayerCounts[level];
}
GLsizei TextureD3D_2DArray::getWidth(GLint level) const
{
return (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS && mLayerCounts[level] > 0) ? mImageArray[level][0]->getWidth() : 0;
}
GLsizei TextureD3D_2DArray::getHeight(GLint level) const
{
return (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS && mLayerCounts[level] > 0) ? mImageArray[level][0]->getHeight() : 0;
}
GLenum TextureD3D_2DArray::getInternalFormat(GLint level) const
{
return (level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS && mLayerCounts[level] > 0) ? mImageArray[level][0]->getInternalFormat() : GL_NONE;
}
bool TextureD3D_2DArray::isDepth(GLint level) const
{
return gl::GetInternalFormatInfo(getInternalFormat(level)).depthBits > 0;
}
gl::Error TextureD3D_2DArray::setEGLImageTarget(GLenum target, egl::Image *image)
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D_2DArray::setImage(GLenum target,
size_t imageLevel,
GLenum internalFormat,
const gl::Extents &size,
GLenum format,
GLenum type,
const gl::PixelUnpackState &unpack,
const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_2D_ARRAY);
GLenum sizedInternalFormat = gl::GetSizedInternalFormat(internalFormat, type);
GLint level = static_cast<GLint>(imageLevel);
redefineImage(level, sizedInternalFormat, size);
const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(sizedInternalFormat);
GLsizei inputDepthPitch = 0;
ANGLE_TRY_RESULT(formatInfo.computeDepthPitch(type, size.width, size.height, unpack.alignment,
unpack.rowLength, unpack.imageHeight),
inputDepthPitch);
for (int i = 0; i < size.depth; i++)
{
const ptrdiff_t layerOffset = (inputDepthPitch * i);
gl::ImageIndex index = gl::ImageIndex::Make2DArray(level, i);
gl::Error error = setImageImpl(index, type, unpack, pixels, layerOffset);
if (error.isError())
{
return error;
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2DArray::setSubImage(GLenum target,
size_t imageLevel,
const gl::Box &area,
GLenum format,
GLenum type,
const gl::PixelUnpackState &unpack,
const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_2D_ARRAY);
GLint level = static_cast<GLint>(imageLevel);
const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(getInternalFormat(level));
GLsizei inputDepthPitch = 0;
ANGLE_TRY_RESULT(formatInfo.computeDepthPitch(type, area.width, area.height, unpack.alignment,
unpack.rowLength, unpack.imageHeight),
inputDepthPitch);
for (int i = 0; i < area.depth; i++)
{
int layer = area.z + i;
const ptrdiff_t layerOffset = (inputDepthPitch * i);
gl::Box layerArea(area.x, area.y, 0, area.width, area.height, 1);
gl::ImageIndex index = gl::ImageIndex::Make2DArray(level, layer);
gl::Error error = TextureD3D::subImage(index, layerArea, format, type, unpack, pixels, layerOffset);
if (error.isError())
{
return error;
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2DArray::setCompressedImage(GLenum target,
size_t imageLevel,
GLenum internalFormat,
const gl::Extents &size,
const gl::PixelUnpackState &unpack,
size_t imageSize,
const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_2D_ARRAY);
GLint level = static_cast<GLint>(imageLevel);
// compressed formats don't have separate sized internal formats-- we can just use the compressed format directly
redefineImage(level, internalFormat, size);
const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(internalFormat);
GLsizei inputDepthPitch = 0;
ANGLE_TRY_RESULT(
formatInfo.computeDepthPitch(GL_UNSIGNED_BYTE, size.width, size.height, 1, 0, 0),
inputDepthPitch);
for (int i = 0; i < size.depth; i++)
{
const ptrdiff_t layerOffset = (inputDepthPitch * i);
gl::ImageIndex index = gl::ImageIndex::Make2DArray(level, i);
gl::Error error = setCompressedImageImpl(index, unpack, pixels, layerOffset);
if (error.isError())
{
return error;
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2DArray::setCompressedSubImage(GLenum target, size_t level, const gl::Box &area, GLenum format,
const gl::PixelUnpackState &unpack, size_t imageSize, const uint8_t *pixels)
{
ASSERT(target == GL_TEXTURE_2D_ARRAY);
const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(format);
GLsizei inputDepthPitch = 0;
ANGLE_TRY_RESULT(
formatInfo.computeDepthPitch(GL_UNSIGNED_BYTE, area.width, area.height, 1, 0, 0),
inputDepthPitch);
for (int i = 0; i < area.depth; i++)
{
int layer = area.z + i;
const ptrdiff_t layerOffset = (inputDepthPitch * i);
gl::Box layerArea(area.x, area.y, 0, area.width, area.height, 1);
gl::ImageIndex index = gl::ImageIndex::Make2DArray(static_cast<GLint>(level), layer);
gl::Error error = TextureD3D::subImageCompressed(index, layerArea, format, unpack, pixels, layerOffset);
if (error.isError())
{
return error;
}
error = commitRegion(index, layerArea);
if (error.isError())
{
return error;
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2DArray::copyImage(GLenum target, size_t level, const gl::Rectangle &sourceArea, GLenum internalFormat,
const gl::Framebuffer *source)
{
UNIMPLEMENTED();
return gl::Error(GL_INVALID_OPERATION, "Copying 2D array textures is unimplemented.");
}
gl::Error TextureD3D_2DArray::copySubImage(GLenum target,
size_t imageLevel,
const gl::Offset &destOffset,
const gl::Rectangle &sourceArea,
const gl::Framebuffer *source)
{
ASSERT(target == GL_TEXTURE_2D_ARRAY);
GLint level = static_cast<GLint>(imageLevel);
gl::ImageIndex index = gl::ImageIndex::Make2DArray(level, destOffset.z);
if (canCreateRenderTargetForImage(index))
{
gl::Offset destLayerOffset(destOffset.x, destOffset.y, 0);
gl::Error error = mImageArray[level][destOffset.z]->copyFromFramebuffer(destLayerOffset,
sourceArea, source);
if (error.isError())
{
return error;
}
mDirtyImages = true;
}
else
{
gl::Error error = ensureRenderTarget();
if (error.isError())
{
return error;
}
if (isValidLevel(level))
{
error = updateStorageLevel(level);
if (error.isError())
{
return error;
}
error = mRenderer->copyImage2DArray(
source, sourceArea,
gl::GetInternalFormatInfo(getInternalFormat(getBaseLevel())).format, destOffset,
mTexStorage, level);
if (error.isError())
{
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2DArray::setStorage(GLenum target, size_t levels, GLenum internalFormat, const gl::Extents &size)
{
ASSERT(target == GL_TEXTURE_2D_ARRAY);
deleteImages();
for (size_t level = 0; level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; level++)
{
gl::Extents levelLayerSize(std::max(1, size.width >> level),
std::max(1, size.height >> level),
1);
mLayerCounts[level] = (level < levels ? size.depth : 0);
if (mLayerCounts[level] > 0)
{
// Create new images for this level
mImageArray[level] = new ImageD3D*[mLayerCounts[level]];
for (int layer = 0; layer < mLayerCounts[level]; layer++)
{
mImageArray[level][layer] = mRenderer->createImage();
mImageArray[level][layer]->redefine(GL_TEXTURE_2D_ARRAY, internalFormat, levelLayerSize, true);
}
}
}
// TODO(geofflang): Verify storage creation had no errors
bool renderTarget = IsRenderTargetUsage(mState.getUsage());
TextureStorage *storage =
mRenderer->createTextureStorage2DArray(internalFormat, renderTarget, size.width,
size.height, size.depth, static_cast<int>(levels));
gl::Error error = setCompleteTexStorage(storage);
if (error.isError())
{
SafeDelete(storage);
return error;
}
error = updateStorage();
if (error.isError())
{
return error;
}
mImmutable = true;
return gl::Error(GL_NO_ERROR);
}
void TextureD3D_2DArray::bindTexImage(egl::Surface *surface)
{
UNREACHABLE();
}
void TextureD3D_2DArray::releaseTexImage()
{
UNREACHABLE();
}
void TextureD3D_2DArray::initMipmapImages()
{
const GLuint baseLevel = mState.getEffectiveBaseLevel();
const GLuint maxLevel = mState.getMipmapMaxLevel();
int baseWidth = getLevelZeroWidth();
int baseHeight = getLevelZeroHeight();
int baseDepth = getLayerCount(getBaseLevel());
GLenum baseFormat = getBaseLevelInternalFormat();
// Purge array levels baseLevel + 1 through q and reset them to represent the generated mipmap
// levels.
for (GLuint level = baseLevel + 1u; level <= maxLevel; level++)
{
ASSERT((baseWidth >> level) > 0 || (baseHeight >> level) > 0);
gl::Extents levelLayerSize(std::max(baseWidth >> level, 1),
std::max(baseHeight >> level, 1),
baseDepth);
redefineImage(level, baseFormat, levelLayerSize);
}
}
gl::Error TextureD3D_2DArray::getRenderTarget(const gl::ImageIndex &index, RenderTargetD3D **outRT)
{
// ensure the underlying texture is created
gl::Error error = ensureRenderTarget();
if (error.isError())
{
return error;
}
error = updateStorageLevel(index.mipIndex);
if (error.isError())
{
return error;
}
return mTexStorage->getRenderTarget(index, outRT);
}
gl::Error TextureD3D_2DArray::initializeStorage(bool renderTarget)
{
// Only initialize the first time this texture is used as a render target or shader resource
if (mTexStorage)
{
return gl::Error(GL_NO_ERROR);
}
// do not attempt to create storage for nonexistant data
if (!isLevelComplete(getBaseLevel()))
{
return gl::Error(GL_NO_ERROR);
}
bool createRenderTarget = (renderTarget || IsRenderTargetUsage(mState.getUsage()));
TextureStorage *storage = NULL;
gl::Error error = createCompleteStorage(createRenderTarget, &storage);
if (error.isError())
{
return error;
}
error = setCompleteTexStorage(storage);
if (error.isError())
{
SafeDelete(storage);
return error;
}
ASSERT(mTexStorage);
// flush image data to the storage
error = updateStorage();
if (error.isError())
{
return error;
}
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2DArray::createCompleteStorage(bool renderTarget, TextureStorage **outStorage) const
{
GLsizei width = getLevelZeroWidth();
GLsizei height = getLevelZeroHeight();
GLsizei depth = getLayerCount(getBaseLevel());
GLenum internalFormat = getBaseLevelInternalFormat();
ASSERT(width > 0 && height > 0 && depth > 0);
// use existing storage level count, when previously specified by TexStorage*D
GLint levels = (mTexStorage ? mTexStorage->getLevelCount() : creationLevels(width, height, 1));
// TODO(geofflang): Verify storage creation succeeds
*outStorage = mRenderer->createTextureStorage2DArray(internalFormat, renderTarget, width, height, depth, levels);
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2DArray::setCompleteTexStorage(TextureStorage *newCompleteTexStorage)
{
SafeDelete(mTexStorage);
mTexStorage = newCompleteTexStorage;
mDirtyImages = true;
// We do not support managed 2D array storage, as managed storage is ES2/D3D9 only
ASSERT(!mTexStorage->isManaged());
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_2DArray::updateStorage()
{
ASSERT(mTexStorage != NULL);
GLint storageLevels = mTexStorage->getLevelCount();
for (int level = 0; level < storageLevels; level++)
{
if (isLevelComplete(level))
{
gl::Error error = updateStorageLevel(level);
if (error.isError())
{
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
bool TextureD3D_2DArray::isValidLevel(int level) const
{
return (mTexStorage ? (level >= 0 && level < mTexStorage->getLevelCount()) : 0);
}
bool TextureD3D_2DArray::isLevelComplete(int level) const
{
ASSERT(level >= 0 && level < (int)ArraySize(mImageArray));
if (isImmutable())
{
return true;
}
GLsizei width = getLevelZeroWidth();
GLsizei height = getLevelZeroHeight();
if (width <= 0 || height <= 0)
{
return false;
}
// Layers check needs to happen after the above checks, otherwise out-of-range base level may be
// queried.
GLsizei layers = getLayerCount(getBaseLevel());
if (layers <= 0)
{
return false;
}
if (level == static_cast<int>(getBaseLevel()))
{
return true;
}
if (getInternalFormat(level) != getInternalFormat(getBaseLevel()))
{
return false;
}
if (getWidth(level) != std::max(1, width >> level))
{
return false;
}
if (getHeight(level) != std::max(1, height >> level))
{
return false;
}
if (getLayerCount(level) != layers)
{
return false;
}
return true;
}
bool TextureD3D_2DArray::isImageComplete(const gl::ImageIndex &index) const
{
return isLevelComplete(index.mipIndex);
}
gl::Error TextureD3D_2DArray::updateStorageLevel(int level)
{
ASSERT(level >= 0 && level < (int)ArraySize(mLayerCounts));
ASSERT(isLevelComplete(level));
for (int layer = 0; layer < mLayerCounts[level]; layer++)
{
ASSERT(mImageArray[level] != NULL && mImageArray[level][layer] != NULL);
if (mImageArray[level][layer]->isDirty())
{
gl::ImageIndex index = gl::ImageIndex::Make2DArray(level, layer);
gl::Box region(0, 0, 0, getWidth(level), getHeight(level), 1);
gl::Error error = commitRegion(index, region);
if (error.isError())
{
return error;
}
}
}
return gl::Error(GL_NO_ERROR);
}
void TextureD3D_2DArray::deleteImages()
{
for (int level = 0; level < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; ++level)
{
for (int layer = 0; layer < mLayerCounts[level]; ++layer)
{
delete mImageArray[level][layer];
}
delete[] mImageArray[level];
mImageArray[level] = NULL;
mLayerCounts[level] = 0;
}
}
void TextureD3D_2DArray::redefineImage(GLint level, GLenum internalformat, const gl::Extents &size)
{
// If there currently is a corresponding storage texture image, it has these parameters
const int storageWidth = std::max(1, getLevelZeroWidth() >> level);
const int storageHeight = std::max(1, getLevelZeroHeight() >> level);
const GLuint baseLevel = getBaseLevel();
int storageDepth = 0;
if (baseLevel < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
{
storageDepth = getLayerCount(baseLevel);
}
// Only reallocate the layers if the size doesn't match
if (size.depth != mLayerCounts[level])
{
for (int layer = 0; layer < mLayerCounts[level]; layer++)
{
SafeDelete(mImageArray[level][layer]);
}
SafeDeleteArray(mImageArray[level]);
mLayerCounts[level] = size.depth;
if (size.depth > 0)
{
mImageArray[level] = new ImageD3D*[size.depth];
for (int layer = 0; layer < mLayerCounts[level]; layer++)
{
mImageArray[level][layer] = mRenderer->createImage();
}
}
}
if (size.depth > 0)
{
for (int layer = 0; layer < mLayerCounts[level]; layer++)
{
mImageArray[level][layer]->redefine(GL_TEXTURE_2D_ARRAY, internalformat,
gl::Extents(size.width, size.height, 1), false);
}
}
if (mTexStorage)
{
const GLenum storageFormat = getBaseLevelInternalFormat();
const int storageLevels = mTexStorage->getLevelCount();
if ((level >= storageLevels && storageLevels != 0) ||
size.width != storageWidth ||
size.height != storageHeight ||
size.depth != storageDepth ||
internalformat != storageFormat) // Discard mismatched storage
{
markAllImagesDirty();
SafeDelete(mTexStorage);
}
}
}
gl::ImageIndexIterator TextureD3D_2DArray::imageIterator() const
{
return gl::ImageIndexIterator::Make2DArray(0, mTexStorage->getLevelCount(), mLayerCounts);
}
gl::ImageIndex TextureD3D_2DArray::getImageIndex(GLint mip, GLint layer) const
{
return gl::ImageIndex::Make2DArray(mip, layer);
}
bool TextureD3D_2DArray::isValidIndex(const gl::ImageIndex &index) const
{
// Check for having a storage and the right type of index
if (!mTexStorage || index.type != GL_TEXTURE_2D_ARRAY)
{
return false;
}
// Check the mip index
if (index.mipIndex < 0 || index.mipIndex >= mTexStorage->getLevelCount())
{
return false;
}
// Check the layer index
return (!index.hasLayer() || (index.layerIndex >= 0 && index.layerIndex < mLayerCounts[index.mipIndex]));
}
void TextureD3D_2DArray::markAllImagesDirty()
{
for (int dirtyLevel = 0; dirtyLevel < gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS; dirtyLevel++)
{
for (int dirtyLayer = 0; dirtyLayer < mLayerCounts[dirtyLevel]; dirtyLayer++)
{
mImageArray[dirtyLevel][dirtyLayer]->markDirty();
}
}
mDirtyImages = true;
}
TextureD3D_External::TextureD3D_External(const gl::TextureState &state, RendererD3D *renderer)
: TextureD3D(state, renderer)
{
}
TextureD3D_External::~TextureD3D_External()
{
SafeDelete(mTexStorage);
}
ImageD3D *TextureD3D_External::getImage(const gl::ImageIndex &index) const
{
UNREACHABLE();
return nullptr;
}
GLsizei TextureD3D_External::getLayerCount(int level) const
{
return 1;
}
gl::Error TextureD3D_External::setImage(GLenum target,
size_t imageLevel,
GLenum internalFormat,
const gl::Extents &size,
GLenum format,
GLenum type,
const gl::PixelUnpackState &unpack,
const uint8_t *pixels)
{
// Image setting is not supported for external images
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D_External::setSubImage(GLenum target,
size_t imageLevel,
const gl::Box &area,
GLenum format,
GLenum type,
const gl::PixelUnpackState &unpack,
const uint8_t *pixels)
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D_External::setCompressedImage(GLenum target,
size_t imageLevel,
GLenum internalFormat,
const gl::Extents &size,
const gl::PixelUnpackState &unpack,
size_t imageSize,
const uint8_t *pixels)
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D_External::setCompressedSubImage(GLenum target,
size_t level,
const gl::Box &area,
GLenum format,
const gl::PixelUnpackState &unpack,
size_t imageSize,
const uint8_t *pixels)
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D_External::copyImage(GLenum target,
size_t imageLevel,
const gl::Rectangle &sourceArea,
GLenum internalFormat,
const gl::Framebuffer *source)
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D_External::copySubImage(GLenum target,
size_t imageLevel,
const gl::Offset &destOffset,
const gl::Rectangle &sourceArea,
const gl::Framebuffer *source)
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D_External::setStorage(GLenum target,
size_t levels,
GLenum internalFormat,
const gl::Extents &size)
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
gl::Error TextureD3D_External::setImageExternal(GLenum target,
egl::Stream *stream,
const egl::Stream::GLTextureDescription &desc)
{
ASSERT(target == GL_TEXTURE_EXTERNAL_OES);
SafeDelete(mTexStorage);
// If the stream is null, the external image is unbound and we release the storage
if (stream != nullptr)
{
mTexStorage = mRenderer->createTextureStorageExternal(stream, desc);
}
return gl::Error(GL_NO_ERROR);
}
void TextureD3D_External::bindTexImage(egl::Surface *surface)
{
UNREACHABLE();
}
void TextureD3D_External::releaseTexImage()
{
UNREACHABLE();
}
gl::Error TextureD3D_External::setEGLImageTarget(GLenum target, egl::Image *image)
{
EGLImageD3D *eglImaged3d = GetImplAs<EGLImageD3D>(image);
SafeDelete(mTexStorage);
mTexStorage = mRenderer->createTextureStorageEGLImage(eglImaged3d);
return gl::NoError();
}
void TextureD3D_External::initMipmapImages()
{
UNREACHABLE();
}
gl::Error TextureD3D_External::getRenderTarget(const gl::ImageIndex &index, RenderTargetD3D **outRT)
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
bool TextureD3D_External::isImageComplete(const gl::ImageIndex &index) const
{
return (index.mipIndex == 0) ? (mTexStorage != nullptr) : false;
}
gl::Error TextureD3D_External::initializeStorage(bool renderTarget)
{
// Texture storage is created when an external image is bound
ASSERT(mTexStorage);
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_External::createCompleteStorage(bool renderTarget,
TextureStorage **outTexStorage) const
{
UNREACHABLE();
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_External::setCompleteTexStorage(TextureStorage *newCompleteTexStorage)
{
UNREACHABLE();
return gl::Error(GL_NO_ERROR);
}
gl::Error TextureD3D_External::updateStorage()
{
// Texture storage does not need to be updated since it is already loaded with the latest
// external image
ASSERT(mTexStorage);
return gl::Error(GL_NO_ERROR);
}
gl::ImageIndexIterator TextureD3D_External::imageIterator() const
{
return gl::ImageIndexIterator::Make2D(0, mTexStorage->getLevelCount());
}
gl::ImageIndex TextureD3D_External::getImageIndex(GLint mip, GLint /*layer*/) const
{
// "layer" does not apply to 2D Textures.
return gl::ImageIndex::Make2D(mip);
}
bool TextureD3D_External::isValidIndex(const gl::ImageIndex &index) const
{
return (mTexStorage && index.type == GL_TEXTURE_EXTERNAL_OES && index.mipIndex == 0);
}
void TextureD3D_External::markAllImagesDirty()
{
UNREACHABLE();
}
}