blob: 23f7d680cbaa9df9000b512908941b96723e7d96 [file] [log] [blame]
//
// Copyright 2002 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.
//
// Texture.cpp: Implements the gl::Texture class. [OpenGL ES 2.0.24] section 3.7 page 63.
#include "libANGLE/Texture.h"
#include "common/mathutil.h"
#include "common/utilities.h"
#include "libANGLE/Config.h"
#include "libANGLE/Context.h"
#include "libANGLE/Image.h"
#include "libANGLE/State.h"
#include "libANGLE/Surface.h"
#include "libANGLE/formatutils.h"
#include "libANGLE/renderer/GLImplFactory.h"
#include "libANGLE/renderer/TextureImpl.h"
namespace gl
{
namespace
{
bool IsPointSampled(const SamplerState &samplerState)
{
return (samplerState.getMagFilter() == GL_NEAREST &&
(samplerState.getMinFilter() == GL_NEAREST ||
samplerState.getMinFilter() == GL_NEAREST_MIPMAP_NEAREST));
}
size_t GetImageDescIndex(TextureTarget target, size_t level)
{
return IsCubeMapFaceTarget(target) ? (level * 6 + CubeMapTextureTargetToFaceIndex(target))
: level;
}
InitState DetermineInitState(const Context *context, const uint8_t *pixels)
{
// Can happen in tests.
if (!context || !context->isRobustResourceInitEnabled())
return InitState::Initialized;
const auto &glState = context->getState();
return (pixels == nullptr && glState.getTargetBuffer(gl::BufferBinding::PixelUnpack) == nullptr)
? InitState::MayNeedInit
: InitState::Initialized;
}
} // namespace
bool IsMipmapFiltered(const SamplerState &samplerState)
{
switch (samplerState.getMinFilter())
{
case GL_NEAREST:
case GL_LINEAR:
return false;
case GL_NEAREST_MIPMAP_NEAREST:
case GL_LINEAR_MIPMAP_NEAREST:
case GL_NEAREST_MIPMAP_LINEAR:
case GL_LINEAR_MIPMAP_LINEAR:
return true;
default:
UNREACHABLE();
return false;
}
}
SwizzleState::SwizzleState()
: swizzleRed(GL_RED), swizzleGreen(GL_GREEN), swizzleBlue(GL_BLUE), swizzleAlpha(GL_ALPHA)
{}
SwizzleState::SwizzleState(GLenum red, GLenum green, GLenum blue, GLenum alpha)
: swizzleRed(red), swizzleGreen(green), swizzleBlue(blue), swizzleAlpha(alpha)
{}
bool SwizzleState::swizzleRequired() const
{
return swizzleRed != GL_RED || swizzleGreen != GL_GREEN || swizzleBlue != GL_BLUE ||
swizzleAlpha != GL_ALPHA;
}
bool SwizzleState::operator==(const SwizzleState &other) const
{
return swizzleRed == other.swizzleRed && swizzleGreen == other.swizzleGreen &&
swizzleBlue == other.swizzleBlue && swizzleAlpha == other.swizzleAlpha;
}
bool SwizzleState::operator!=(const SwizzleState &other) const
{
return !(*this == other);
}
TextureState::TextureState(TextureType type)
: mType(type),
mSamplerState(SamplerState::CreateDefaultForTarget(type)),
mBaseLevel(0),
mMaxLevel(1000),
mDepthStencilTextureMode(GL_DEPTH_COMPONENT),
mImmutableFormat(false),
mImmutableLevels(0),
mUsage(GL_NONE),
mImageDescs((IMPLEMENTATION_MAX_TEXTURE_LEVELS + 1) * (type == TextureType::CubeMap ? 6 : 1)),
mCropRect(0, 0, 0, 0),
mGenerateMipmapHint(GL_FALSE),
mInitState(InitState::MayNeedInit),
mCachedSamplerFormat(SamplerFormat::InvalidEnum),
mCachedSamplerCompareMode(GL_NONE),
mCachedSamplerFormatValid(false)
{}
TextureState::~TextureState() {}
bool TextureState::swizzleRequired() const
{
return mSwizzleState.swizzleRequired();
}
GLuint TextureState::getEffectiveBaseLevel() const
{
if (mImmutableFormat)
{
// GLES 3.0.4 section 3.8.10
return std::min(mBaseLevel, mImmutableLevels - 1);
}
// Some classes use the effective base level to index arrays with level data. By clamping the
// effective base level to max levels these arrays need just one extra item to store properties
// that should be returned for all out-of-range base level values, instead of needing special
// handling for out-of-range base levels.
return std::min(mBaseLevel, static_cast<GLuint>(IMPLEMENTATION_MAX_TEXTURE_LEVELS));
}
GLuint TextureState::getEffectiveMaxLevel() const
{
if (mImmutableFormat)
{
// GLES 3.0.4 section 3.8.10
GLuint clampedMaxLevel = std::max(mMaxLevel, getEffectiveBaseLevel());
clampedMaxLevel = std::min(clampedMaxLevel, mImmutableLevels - 1);
return clampedMaxLevel;
}
return mMaxLevel;
}
GLuint TextureState::getMipmapMaxLevel() const
{
const ImageDesc &baseImageDesc = getImageDesc(getBaseImageTarget(), getEffectiveBaseLevel());
GLuint expectedMipLevels = 0;
if (mType == TextureType::_3D)
{
const int maxDim = std::max(std::max(baseImageDesc.size.width, baseImageDesc.size.height),
baseImageDesc.size.depth);
expectedMipLevels = static_cast<GLuint>(log2(maxDim));
}
else
{
expectedMipLevels = static_cast<GLuint>(
log2(std::max(baseImageDesc.size.width, baseImageDesc.size.height)));
}
return std::min<GLuint>(getEffectiveBaseLevel() + expectedMipLevels, getEffectiveMaxLevel());
}
bool TextureState::setBaseLevel(GLuint baseLevel)
{
if (mBaseLevel != baseLevel)
{
mBaseLevel = baseLevel;
return true;
}
return false;
}
bool TextureState::setMaxLevel(GLuint maxLevel)
{
if (mMaxLevel != maxLevel)
{
mMaxLevel = maxLevel;
return true;
}
return false;
}
// Tests for cube texture completeness. [OpenGL ES 2.0.24] section 3.7.10 page 81.
// According to [OpenGL ES 3.0.5] section 3.8.13 Texture Completeness page 160 any
// per-level checks begin at the base-level.
// For OpenGL ES2 the base level is always zero.
bool TextureState::isCubeComplete() const
{
ASSERT(mType == TextureType::CubeMap);
angle::EnumIterator<TextureTarget> face = kCubeMapTextureTargetMin;
const ImageDesc &baseImageDesc = getImageDesc(*face, getEffectiveBaseLevel());
if (baseImageDesc.size.width == 0 || baseImageDesc.size.width != baseImageDesc.size.height)
{
return false;
}
++face;
for (; face != kAfterCubeMapTextureTargetMax; ++face)
{
const ImageDesc &faceImageDesc = getImageDesc(*face, getEffectiveBaseLevel());
if (faceImageDesc.size.width != baseImageDesc.size.width ||
faceImageDesc.size.height != baseImageDesc.size.height ||
!Format::SameSized(faceImageDesc.format, baseImageDesc.format))
{
return false;
}
}
return true;
}
const ImageDesc &TextureState::getBaseLevelDesc() const
{
ASSERT(mType != TextureType::CubeMap || isCubeComplete());
return getImageDesc(getBaseImageTarget(), getEffectiveBaseLevel());
}
void TextureState::setCrop(const gl::Rectangle &rect)
{
mCropRect = rect;
}
const gl::Rectangle &TextureState::getCrop() const
{
return mCropRect;
}
void TextureState::setGenerateMipmapHint(GLenum hint)
{
mGenerateMipmapHint = hint;
}
GLenum TextureState::getGenerateMipmapHint() const
{
return mGenerateMipmapHint;
}
SamplerFormat TextureState::computeRequiredSamplerFormat(const SamplerState &samplerState) const
{
const ImageDesc &baseImageDesc = getImageDesc(getBaseImageTarget(), getEffectiveBaseLevel());
if ((baseImageDesc.format.info->format == GL_DEPTH_COMPONENT ||
baseImageDesc.format.info->format == GL_DEPTH_STENCIL) &&
samplerState.getCompareMode() != GL_NONE)
{
return SamplerFormat::Shadow;
}
else
{
switch (baseImageDesc.format.info->componentType)
{
case GL_UNSIGNED_NORMALIZED:
case GL_SIGNED_NORMALIZED:
case GL_FLOAT:
return SamplerFormat::Float;
case GL_INT:
return SamplerFormat::Signed;
case GL_UNSIGNED_INT:
return SamplerFormat::Unsigned;
default:
return SamplerFormat::InvalidEnum;
}
}
}
bool TextureState::computeSamplerCompleteness(const SamplerState &samplerState,
const State &data) const
{
if (mBaseLevel > mMaxLevel)
{
return false;
}
const ImageDesc &baseImageDesc = getImageDesc(getBaseImageTarget(), getEffectiveBaseLevel());
if (baseImageDesc.size.width == 0 || baseImageDesc.size.height == 0 ||
baseImageDesc.size.depth == 0)
{
return false;
}
// The cases where the texture is incomplete because base level is out of range should be
// handled by the above condition.
ASSERT(mBaseLevel < IMPLEMENTATION_MAX_TEXTURE_LEVELS || mImmutableFormat);
if (mType == TextureType::CubeMap && baseImageDesc.size.width != baseImageDesc.size.height)
{
return false;
}
// According to es 3.1 spec, texture is justified as incomplete if sized internalformat is
// unfilterable(table 20.11) and filter is not GL_NEAREST(8.16). The default value of minFilter
// is NEAREST_MIPMAP_LINEAR and magFilter is LINEAR(table 20.11,). For multismaple texture,
// filter state of multisample texture is ignored(11.1.3.3). So it shouldn't be judged as
// incomplete texture. So, we ignore filtering for multisample texture completeness here.
if (!IsMultisampled(mType) &&
!baseImageDesc.format.info->filterSupport(data.getClientVersion(), data.getExtensions()) &&
!IsPointSampled(samplerState))
{
return false;
}
bool npotSupport = data.getExtensions().textureNPOT || data.getClientMajorVersion() >= 3;
if (!npotSupport)
{
if ((samplerState.getWrapS() != GL_CLAMP_TO_EDGE &&
samplerState.getWrapS() != GL_CLAMP_TO_BORDER && !isPow2(baseImageDesc.size.width)) ||
(samplerState.getWrapT() != GL_CLAMP_TO_EDGE &&
samplerState.getWrapT() != GL_CLAMP_TO_BORDER && !isPow2(baseImageDesc.size.height)))
{
return false;
}
}
if (mType != TextureType::_2DMultisample && IsMipmapFiltered(samplerState))
{
if (!npotSupport)
{
if (!isPow2(baseImageDesc.size.width) || !isPow2(baseImageDesc.size.height))
{
return false;
}
}
if (!computeMipmapCompleteness())
{
return false;
}
}
else
{
if (mType == TextureType::CubeMap && !isCubeComplete())
{
return false;
}
}
// From GL_OES_EGL_image_external_essl3: If state is present in a sampler object bound to a
// texture unit that would have been rejected by a call to TexParameter* for the texture bound
// to that unit, the behavior of the implementation is as if the texture were incomplete. For
// example, if TEXTURE_WRAP_S or TEXTURE_WRAP_T is set to anything but CLAMP_TO_EDGE on the
// sampler object bound to a texture unit and the texture bound to that unit is an external
// texture, the texture will be considered incomplete.
// Sampler object state which does not affect sampling for the type of texture bound to a
// texture unit, such as TEXTURE_WRAP_R for an external texture, does not affect completeness.
if (mType == TextureType::External)
{
if (samplerState.getWrapS() != GL_CLAMP_TO_EDGE ||
samplerState.getWrapT() != GL_CLAMP_TO_EDGE)
{
return false;
}
if (samplerState.getMinFilter() != GL_LINEAR && samplerState.getMinFilter() != GL_NEAREST)
{
return false;
}
}
// OpenGLES 3.0.2 spec section 3.8.13 states that a texture is not mipmap complete if:
// The internalformat specified for the texture arrays is a sized internal depth or
// depth and stencil format (see table 3.13), the value of TEXTURE_COMPARE_-
// MODE is NONE, and either the magnification filter is not NEAREST or the mini-
// fication filter is neither NEAREST nor NEAREST_MIPMAP_NEAREST.
if (!IsMultisampled(mType) && baseImageDesc.format.info->depthBits > 0 &&
data.getClientMajorVersion() >= 3)
{
// Note: we restrict this validation to sized types. For the OES_depth_textures
// extension, due to some underspecification problems, we must allow linear filtering
// for legacy compatibility with WebGL 1.
// See http://crbug.com/649200
if (samplerState.getCompareMode() == GL_NONE && baseImageDesc.format.info->sized)
{
if ((samplerState.getMinFilter() != GL_NEAREST &&
samplerState.getMinFilter() != GL_NEAREST_MIPMAP_NEAREST) ||
samplerState.getMagFilter() != GL_NEAREST)
{
return false;
}
}
}
// OpenGLES 3.1 spec section 8.16 states that a texture is not mipmap complete if:
// The internalformat specified for the texture is DEPTH_STENCIL format, the value of
// DEPTH_STENCIL_TEXTURE_MODE is STENCIL_INDEX, and either the magnification filter is
// not NEAREST or the minification filter is neither NEAREST nor NEAREST_MIPMAP_NEAREST.
// However, the ES 3.1 spec differs from the statement above, because it is incorrect.
// See the issue at https://github.com/KhronosGroup/OpenGL-API/issues/33.
// For multismaple texture, filter state of multisample texture is ignored(11.1.3.3).
// So it shouldn't be judged as incomplete texture. So, we ignore filtering for multisample
// texture completeness here.
if (!IsMultisampled(mType) && baseImageDesc.format.info->depthBits > 0 &&
mDepthStencilTextureMode == GL_STENCIL_INDEX)
{
if ((samplerState.getMinFilter() != GL_NEAREST &&
samplerState.getMinFilter() != GL_NEAREST_MIPMAP_NEAREST) ||
samplerState.getMagFilter() != GL_NEAREST)
{
return false;
}
}
return true;
}
bool TextureState::computeMipmapCompleteness() const
{
const GLuint maxLevel = getMipmapMaxLevel();
for (GLuint level = getEffectiveBaseLevel(); level <= maxLevel; level++)
{
if (mType == TextureType::CubeMap)
{
for (TextureTarget face : AllCubeFaceTextureTargets())
{
if (!computeLevelCompleteness(face, level))
{
return false;
}
}
}
else
{
if (!computeLevelCompleteness(NonCubeTextureTypeToTarget(mType), level))
{
return false;
}
}
}
return true;
}
bool TextureState::computeLevelCompleteness(TextureTarget target, size_t level) const
{
ASSERT(level < IMPLEMENTATION_MAX_TEXTURE_LEVELS);
if (mImmutableFormat)
{
return true;
}
const ImageDesc &baseImageDesc = getImageDesc(getBaseImageTarget(), getEffectiveBaseLevel());
if (baseImageDesc.size.width == 0 || baseImageDesc.size.height == 0 ||
baseImageDesc.size.depth == 0)
{
return false;
}
const ImageDesc &levelImageDesc = getImageDesc(target, level);
if (levelImageDesc.size.width == 0 || levelImageDesc.size.height == 0 ||
levelImageDesc.size.depth == 0)
{
return false;
}
if (!Format::SameSized(levelImageDesc.format, baseImageDesc.format))
{
return false;
}
ASSERT(level >= getEffectiveBaseLevel());
const size_t relativeLevel = level - getEffectiveBaseLevel();
if (levelImageDesc.size.width != std::max(1, baseImageDesc.size.width >> relativeLevel))
{
return false;
}
if (levelImageDesc.size.height != std::max(1, baseImageDesc.size.height >> relativeLevel))
{
return false;
}
if (mType == TextureType::_3D)
{
if (levelImageDesc.size.depth != std::max(1, baseImageDesc.size.depth >> relativeLevel))
{
return false;
}
}
else if (mType == TextureType::_2DArray)
{
if (levelImageDesc.size.depth != baseImageDesc.size.depth)
{
return false;
}
}
return true;
}
TextureTarget TextureState::getBaseImageTarget() const
{
return mType == TextureType::CubeMap ? kCubeMapTextureTargetMin
: NonCubeTextureTypeToTarget(mType);
}
ImageDesc::ImageDesc()
: ImageDesc(Extents(0, 0, 0), Format::Invalid(), 0, GL_TRUE, InitState::Initialized)
{}
ImageDesc::ImageDesc(const Extents &size, const Format &format, const InitState initState)
: size(size), format(format), samples(0), fixedSampleLocations(GL_TRUE), initState(initState)
{}
ImageDesc::ImageDesc(const Extents &size,
const Format &format,
const GLsizei samples,
const bool fixedSampleLocations,
const InitState initState)
: size(size),
format(format),
samples(samples),
fixedSampleLocations(fixedSampleLocations),
initState(initState)
{}
GLint ImageDesc::getMemorySize() const
{
// Assume allocated size is around width * height * depth * samples * pixelBytes
angle::CheckedNumeric<GLint> levelSize = 1;
levelSize *= format.info->pixelBytes;
levelSize *= size.width;
levelSize *= size.height;
levelSize *= size.depth;
levelSize *= std::max(samples, 1);
return levelSize.ValueOrDefault(std::numeric_limits<GLint>::max());
}
const ImageDesc &TextureState::getImageDesc(TextureTarget target, size_t level) const
{
size_t descIndex = GetImageDescIndex(target, level);
ASSERT(descIndex < mImageDescs.size());
return mImageDescs[descIndex];
}
void TextureState::setImageDesc(TextureTarget target, size_t level, const ImageDesc &desc)
{
size_t descIndex = GetImageDescIndex(target, level);
ASSERT(descIndex < mImageDescs.size());
mImageDescs[descIndex] = desc;
if (desc.initState == InitState::MayNeedInit)
{
mInitState = InitState::MayNeedInit;
}
}
// Note that an ImageIndex that represents an entire level of a cube map corresponds to 6
// ImageDescs, so if the cube map is cube complete, we return the ImageDesc of the first cube
// face, and we don't allow using this function when the cube map is not cube complete.
const ImageDesc &TextureState::getImageDesc(const ImageIndex &imageIndex) const
{
if (imageIndex.isEntireLevelCubeMap())
{
ASSERT(isCubeComplete());
const GLint levelIndex = imageIndex.getLevelIndex();
return getImageDesc(kCubeMapTextureTargetMin, levelIndex);
}
return getImageDesc(imageIndex.getTarget(), imageIndex.getLevelIndex());
}
void TextureState::setImageDescChain(GLuint baseLevel,
GLuint maxLevel,
Extents baseSize,
const Format &format,
InitState initState)
{
for (GLuint level = baseLevel; level <= maxLevel; level++)
{
int relativeLevel = (level - baseLevel);
Extents levelSize(std::max<int>(baseSize.width >> relativeLevel, 1),
std::max<int>(baseSize.height >> relativeLevel, 1),
(mType == TextureType::_2DArray)
? baseSize.depth
: std::max<int>(baseSize.depth >> relativeLevel, 1));
ImageDesc levelInfo(levelSize, format, initState);
if (mType == TextureType::CubeMap)
{
for (TextureTarget face : AllCubeFaceTextureTargets())
{
setImageDesc(face, level, levelInfo);
}
}
else
{
setImageDesc(NonCubeTextureTypeToTarget(mType), level, levelInfo);
}
}
}
void TextureState::setImageDescChainMultisample(Extents baseSize,
const Format &format,
GLsizei samples,
bool fixedSampleLocations,
InitState initState)
{
ASSERT(mType == TextureType::_2DMultisample || mType == TextureType::_2DMultisampleArray);
ImageDesc levelInfo(baseSize, format, samples, fixedSampleLocations, initState);
setImageDesc(NonCubeTextureTypeToTarget(mType), 0, levelInfo);
}
void TextureState::clearImageDesc(TextureTarget target, size_t level)
{
setImageDesc(target, level, ImageDesc());
}
void TextureState::clearImageDescs()
{
for (size_t descIndex = 0; descIndex < mImageDescs.size(); descIndex++)
{
mImageDescs[descIndex] = ImageDesc();
}
}
Texture::Texture(rx::GLImplFactory *factory, TextureID id, TextureType type)
: RefCountObject(id),
mState(type),
mTexture(factory->createTexture(mState)),
mImplObserver(this, rx::kTextureImageImplObserverMessageIndex),
mLabel(),
mBoundSurface(nullptr),
mBoundStream(nullptr)
{
mImplObserver.bind(mTexture);
// Initially assume the implementation is dirty.
mDirtyBits.set(DIRTY_BIT_IMPLEMENTATION);
}
void Texture::onDestroy(const Context *context)
{
if (mBoundSurface)
{
ANGLE_SWALLOW_ERR(mBoundSurface->releaseTexImage(context, EGL_BACK_BUFFER));
mBoundSurface = nullptr;
}
if (mBoundStream)
{
mBoundStream->releaseTextures();
mBoundStream = nullptr;
}
(void)(orphanImages(context));
if (mTexture)
{
mTexture->onDestroy(context);
}
}
Texture::~Texture()
{
SafeDelete(mTexture);
}
void Texture::setLabel(const Context *context, const std::string &label)
{
mLabel = label;
signalDirtyState(DIRTY_BIT_LABEL);
}
const std::string &Texture::getLabel() const
{
return mLabel;
}
void Texture::setSwizzleRed(const Context *context, GLenum swizzleRed)
{
mState.mSwizzleState.swizzleRed = swizzleRed;
signalDirtyState(DIRTY_BIT_SWIZZLE_RED);
}
GLenum Texture::getSwizzleRed() const
{
return mState.mSwizzleState.swizzleRed;
}
void Texture::setSwizzleGreen(const Context *context, GLenum swizzleGreen)
{
mState.mSwizzleState.swizzleGreen = swizzleGreen;
signalDirtyState(DIRTY_BIT_SWIZZLE_GREEN);
}
GLenum Texture::getSwizzleGreen() const
{
return mState.mSwizzleState.swizzleGreen;
}
void Texture::setSwizzleBlue(const Context *context, GLenum swizzleBlue)
{
mState.mSwizzleState.swizzleBlue = swizzleBlue;
signalDirtyState(DIRTY_BIT_SWIZZLE_BLUE);
}
GLenum Texture::getSwizzleBlue() const
{
return mState.mSwizzleState.swizzleBlue;
}
void Texture::setSwizzleAlpha(const Context *context, GLenum swizzleAlpha)
{
mState.mSwizzleState.swizzleAlpha = swizzleAlpha;
signalDirtyState(DIRTY_BIT_SWIZZLE_ALPHA);
}
GLenum Texture::getSwizzleAlpha() const
{
return mState.mSwizzleState.swizzleAlpha;
}
void Texture::setMinFilter(const Context *context, GLenum minFilter)
{
mState.mSamplerState.setMinFilter(minFilter);
signalDirtyState(DIRTY_BIT_MIN_FILTER);
}
GLenum Texture::getMinFilter() const
{
return mState.mSamplerState.getMinFilter();
}
void Texture::setMagFilter(const Context *context, GLenum magFilter)
{
mState.mSamplerState.setMagFilter(magFilter);
signalDirtyState(DIRTY_BIT_MAG_FILTER);
}
GLenum Texture::getMagFilter() const
{
return mState.mSamplerState.getMagFilter();
}
void Texture::setWrapS(const Context *context, GLenum wrapS)
{
mState.mSamplerState.setWrapS(wrapS);
signalDirtyState(DIRTY_BIT_WRAP_S);
}
GLenum Texture::getWrapS() const
{
return mState.mSamplerState.getWrapS();
}
void Texture::setWrapT(const Context *context, GLenum wrapT)
{
mState.mSamplerState.setWrapT(wrapT);
signalDirtyState(DIRTY_BIT_WRAP_T);
}
GLenum Texture::getWrapT() const
{
return mState.mSamplerState.getWrapT();
}
void Texture::setWrapR(const Context *context, GLenum wrapR)
{
mState.mSamplerState.setWrapR(wrapR);
signalDirtyState(DIRTY_BIT_WRAP_R);
}
GLenum Texture::getWrapR() const
{
return mState.mSamplerState.getWrapR();
}
void Texture::setMaxAnisotropy(const Context *context, float maxAnisotropy)
{
mState.mSamplerState.setMaxAnisotropy(maxAnisotropy);
signalDirtyState(DIRTY_BIT_MAX_ANISOTROPY);
}
float Texture::getMaxAnisotropy() const
{
return mState.mSamplerState.getMaxAnisotropy();
}
void Texture::setMinLod(const Context *context, GLfloat minLod)
{
mState.mSamplerState.setMinLod(minLod);
signalDirtyState(DIRTY_BIT_MIN_LOD);
}
GLfloat Texture::getMinLod() const
{
return mState.mSamplerState.getMinLod();
}
void Texture::setMaxLod(const Context *context, GLfloat maxLod)
{
mState.mSamplerState.setMaxLod(maxLod);
signalDirtyState(DIRTY_BIT_MAX_LOD);
}
GLfloat Texture::getMaxLod() const
{
return mState.mSamplerState.getMaxLod();
}
void Texture::setCompareMode(const Context *context, GLenum compareMode)
{
mState.mSamplerState.setCompareMode(compareMode);
signalDirtyState(DIRTY_BIT_COMPARE_MODE);
}
GLenum Texture::getCompareMode() const
{
return mState.mSamplerState.getCompareMode();
}
void Texture::setCompareFunc(const Context *context, GLenum compareFunc)
{
mState.mSamplerState.setCompareFunc(compareFunc);
signalDirtyState(DIRTY_BIT_COMPARE_FUNC);
}
GLenum Texture::getCompareFunc() const
{
return mState.mSamplerState.getCompareFunc();
}
void Texture::setSRGBDecode(const Context *context, GLenum sRGBDecode)
{
mState.mSamplerState.setSRGBDecode(sRGBDecode);
signalDirtyState(DIRTY_BIT_SRGB_DECODE);
}
GLenum Texture::getSRGBDecode() const
{
return mState.mSamplerState.getSRGBDecode();
}
const SamplerState &Texture::getSamplerState() const
{
return mState.mSamplerState;
}
angle::Result Texture::setBaseLevel(const Context *context, GLuint baseLevel)
{
if (mState.setBaseLevel(baseLevel))
{
ANGLE_TRY(mTexture->setBaseLevel(context, mState.getEffectiveBaseLevel()));
signalDirtyState(DIRTY_BIT_BASE_LEVEL);
}
return angle::Result::Continue;
}
GLuint Texture::getBaseLevel() const
{
return mState.mBaseLevel;
}
void Texture::setMaxLevel(const Context *context, GLuint maxLevel)
{
if (mState.setMaxLevel(maxLevel))
{
signalDirtyState(DIRTY_BIT_MAX_LEVEL);
}
}
GLuint Texture::getMaxLevel() const
{
return mState.mMaxLevel;
}
void Texture::setDepthStencilTextureMode(const Context *context, GLenum mode)
{
if (mState.mDepthStencilTextureMode != mode)
{
mState.mDepthStencilTextureMode = mode;
signalDirtyState(DIRTY_BIT_DEPTH_STENCIL_TEXTURE_MODE);
}
}
GLenum Texture::getDepthStencilTextureMode() const
{
return mState.mDepthStencilTextureMode;
}
bool Texture::getImmutableFormat() const
{
return mState.mImmutableFormat;
}
GLuint Texture::getImmutableLevels() const
{
return mState.mImmutableLevels;
}
void Texture::setUsage(const Context *context, GLenum usage)
{
mState.mUsage = usage;
signalDirtyState(DIRTY_BIT_USAGE);
}
GLenum Texture::getUsage() const
{
return mState.mUsage;
}
const TextureState &Texture::getTextureState() const
{
return mState;
}
size_t Texture::getWidth(TextureTarget target, size_t level) const
{
ASSERT(TextureTargetToType(target) == mState.mType);
return mState.getImageDesc(target, level).size.width;
}
size_t Texture::getHeight(TextureTarget target, size_t level) const
{
ASSERT(TextureTargetToType(target) == mState.mType);
return mState.getImageDesc(target, level).size.height;
}
size_t Texture::getDepth(TextureTarget target, size_t level) const
{
ASSERT(TextureTargetToType(target) == mState.mType);
return mState.getImageDesc(target, level).size.depth;
}
const Format &Texture::getFormat(TextureTarget target, size_t level) const
{
ASSERT(TextureTargetToType(target) == mState.mType);
return mState.getImageDesc(target, level).format;
}
GLsizei Texture::getSamples(TextureTarget target, size_t level) const
{
ASSERT(TextureTargetToType(target) == mState.mType);
return mState.getImageDesc(target, level).samples;
}
bool Texture::getFixedSampleLocations(TextureTarget target, size_t level) const
{
ASSERT(TextureTargetToType(target) == mState.mType);
return mState.getImageDesc(target, level).fixedSampleLocations;
}
GLuint Texture::getMipmapMaxLevel() const
{
return mState.getMipmapMaxLevel();
}
bool Texture::isMipmapComplete() const
{
return mState.computeMipmapCompleteness();
}
egl::Surface *Texture::getBoundSurface() const
{
return mBoundSurface;
}
egl::Stream *Texture::getBoundStream() const
{
return mBoundStream;
}
GLint Texture::getMemorySize() const
{
GLint implSize = mTexture->getMemorySize();
if (implSize > 0)
{
return implSize;
}
angle::CheckedNumeric<GLint> size = 0;
for (const ImageDesc &imageDesc : mState.mImageDescs)
{
size += imageDesc.getMemorySize();
}
return size.ValueOrDefault(std::numeric_limits<GLint>::max());
}
GLint Texture::getLevelMemorySize(TextureTarget target, GLint level) const
{
GLint implSize = mTexture->getLevelMemorySize(target, level);
if (implSize > 0)
{
return implSize;
}
return mState.getImageDesc(target, level).getMemorySize();
}
void Texture::signalDirtyStorage(InitState initState)
{
mState.mInitState = initState;
invalidateCompletenessCache();
mState.mCachedSamplerFormatValid = false;
onStateChange(angle::SubjectMessage::SubjectChanged);
}
void Texture::signalDirtyState(size_t dirtyBit)
{
mDirtyBits.set(dirtyBit);
invalidateCompletenessCache();
mState.mCachedSamplerFormatValid = false;
onStateChange(angle::SubjectMessage::DirtyBitsFlagged);
}
angle::Result Texture::setImage(Context *context,
const PixelUnpackState &unpackState,
TextureTarget target,
GLint level,
GLenum internalFormat,
const Extents &size,
GLenum format,
GLenum type,
const uint8_t *pixels)
{
ASSERT(TextureTargetToType(target) == mState.mType);
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
ANGLE_TRY(orphanImages(context));
ImageIndex index = ImageIndex::MakeFromTarget(target, level, size.depth);
ANGLE_TRY(mTexture->setImage(context, index, internalFormat, size, format, type, unpackState,
pixels));
InitState initState = DetermineInitState(context, pixels);
mState.setImageDesc(target, level, ImageDesc(size, Format(internalFormat, type), initState));
ANGLE_TRY(handleMipmapGenerationHint(context, level));
signalDirtyStorage(initState);
return angle::Result::Continue;
}
angle::Result Texture::setSubImage(Context *context,
const PixelUnpackState &unpackState,
Buffer *unpackBuffer,
TextureTarget target,
GLint level,
const Box &area,
GLenum format,
GLenum type,
const uint8_t *pixels)
{
ASSERT(TextureTargetToType(target) == mState.mType);
ANGLE_TRY(ensureSubImageInitialized(context, target, level, area));
ImageIndex index = ImageIndex::MakeFromTarget(target, level, area.depth);
ANGLE_TRY(mTexture->setSubImage(context, index, area, format, type, unpackState, unpackBuffer,
pixels));
ANGLE_TRY(handleMipmapGenerationHint(context, level));
onStateChange(angle::SubjectMessage::ContentsChanged);
return angle::Result::Continue;
}
angle::Result Texture::setCompressedImage(Context *context,
const PixelUnpackState &unpackState,
TextureTarget target,
GLint level,
GLenum internalFormat,
const Extents &size,
size_t imageSize,
const uint8_t *pixels)
{
ASSERT(TextureTargetToType(target) == mState.mType);
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
ANGLE_TRY(orphanImages(context));
ImageIndex index = ImageIndex::MakeFromTarget(target, level, size.depth);
ANGLE_TRY(mTexture->setCompressedImage(context, index, internalFormat, size, unpackState,
imageSize, pixels));
InitState initState = DetermineInitState(context, pixels);
mState.setImageDesc(target, level, ImageDesc(size, Format(internalFormat), initState));
signalDirtyStorage(initState);
return angle::Result::Continue;
}
angle::Result Texture::setCompressedSubImage(const Context *context,
const PixelUnpackState &unpackState,
TextureTarget target,
GLint level,
const Box &area,
GLenum format,
size_t imageSize,
const uint8_t *pixels)
{
ASSERT(TextureTargetToType(target) == mState.mType);
ANGLE_TRY(ensureSubImageInitialized(context, target, level, area));
ImageIndex index = ImageIndex::MakeFromTarget(target, level, area.depth);
ANGLE_TRY(mTexture->setCompressedSubImage(context, index, area, format, unpackState, imageSize,
pixels));
onStateChange(angle::SubjectMessage::ContentsChanged);
return angle::Result::Continue;
}
angle::Result Texture::copyImage(Context *context,
TextureTarget target,
GLint level,
const Rectangle &sourceArea,
GLenum internalFormat,
Framebuffer *source)
{
ASSERT(TextureTargetToType(target) == mState.mType);
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
ANGLE_TRY(orphanImages(context));
// Use the source FBO size as the init image area.
Box destBox(0, 0, 0, sourceArea.width, sourceArea.height, 1);
ANGLE_TRY(ensureSubImageInitialized(context, target, level, destBox));
ImageIndex index = ImageIndex::MakeFromTarget(target, level, 1);
ANGLE_TRY(mTexture->copyImage(context, index, sourceArea, internalFormat, source));
const InternalFormat &internalFormatInfo =
GetInternalFormatInfo(internalFormat, GL_UNSIGNED_BYTE);
mState.setImageDesc(target, level,
ImageDesc(Extents(sourceArea.width, sourceArea.height, 1),
Format(internalFormatInfo), InitState::Initialized));
ANGLE_TRY(handleMipmapGenerationHint(context, level));
// We need to initialize this texture only if the source attachment is not initialized.
signalDirtyStorage(InitState::Initialized);
return angle::Result::Continue;
}
angle::Result Texture::copySubImage(Context *context,
const ImageIndex &index,
const Offset &destOffset,
const Rectangle &sourceArea,
Framebuffer *source)
{
ASSERT(TextureTargetToType(index.getTarget()) == mState.mType);
Box destBox(destOffset.x, destOffset.y, destOffset.z, sourceArea.width, sourceArea.height, 1);
ANGLE_TRY(
ensureSubImageInitialized(context, index.getTarget(), index.getLevelIndex(), destBox));
ANGLE_TRY(mTexture->copySubImage(context, index, destOffset, sourceArea, source));
ANGLE_TRY(handleMipmapGenerationHint(context, index.getLevelIndex()));
onStateChange(angle::SubjectMessage::ContentsChanged);
return angle::Result::Continue;
}
angle::Result Texture::copyTexture(Context *context,
TextureTarget target,
GLint level,
GLenum internalFormat,
GLenum type,
GLint sourceLevel,
bool unpackFlipY,
bool unpackPremultiplyAlpha,
bool unpackUnmultiplyAlpha,
Texture *source)
{
ASSERT(TextureTargetToType(target) == mState.mType);
ASSERT(source->getType() != TextureType::CubeMap);
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
ANGLE_TRY(orphanImages(context));
// Initialize source texture.
// Note: we don't have a way to notify which portions of the image changed currently.
ANGLE_TRY(source->ensureInitialized(context));
ImageIndex index = ImageIndex::MakeFromTarget(target, level, ImageIndex::kEntireLevel);
ANGLE_TRY(mTexture->copyTexture(context, index, internalFormat, type, sourceLevel, unpackFlipY,
unpackPremultiplyAlpha, unpackUnmultiplyAlpha, source));
const auto &sourceDesc =
source->mState.getImageDesc(NonCubeTextureTypeToTarget(source->getType()), 0);
const InternalFormat &internalFormatInfo = GetInternalFormatInfo(internalFormat, type);
mState.setImageDesc(
target, level,
ImageDesc(sourceDesc.size, Format(internalFormatInfo), InitState::Initialized));
signalDirtyStorage(InitState::Initialized);
return angle::Result::Continue;
}
angle::Result Texture::copySubTexture(const Context *context,
TextureTarget target,
GLint level,
const Offset &destOffset,
GLint sourceLevel,
const Box &sourceBox,
bool unpackFlipY,
bool unpackPremultiplyAlpha,
bool unpackUnmultiplyAlpha,
Texture *source)
{
ASSERT(TextureTargetToType(target) == mState.mType);
// Ensure source is initialized.
ANGLE_TRY(source->ensureInitialized(context));
Box destBox(destOffset.x, destOffset.y, destOffset.z, sourceBox.width, sourceBox.height,
sourceBox.depth);
ANGLE_TRY(ensureSubImageInitialized(context, target, level, destBox));
ImageIndex index = ImageIndex::MakeFromTarget(target, level, sourceBox.depth);
ANGLE_TRY(mTexture->copySubTexture(context, index, destOffset, sourceLevel, sourceBox,
unpackFlipY, unpackPremultiplyAlpha, unpackUnmultiplyAlpha,
source));
onStateChange(angle::SubjectMessage::ContentsChanged);
return angle::Result::Continue;
}
angle::Result Texture::copyCompressedTexture(Context *context, const Texture *source)
{
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
ANGLE_TRY(orphanImages(context));
ANGLE_TRY(mTexture->copyCompressedTexture(context, source));
ASSERT(source->getType() != TextureType::CubeMap && getType() != TextureType::CubeMap);
const auto &sourceDesc =
source->mState.getImageDesc(NonCubeTextureTypeToTarget(source->getType()), 0);
mState.setImageDesc(NonCubeTextureTypeToTarget(getType()), 0, sourceDesc);
return angle::Result::Continue;
}
angle::Result Texture::setStorage(Context *context,
TextureType type,
GLsizei levels,
GLenum internalFormat,
const Extents &size)
{
ASSERT(type == mState.mType);
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
ANGLE_TRY(orphanImages(context));
mState.mImmutableFormat = true;
mState.mImmutableLevels = static_cast<GLuint>(levels);
ANGLE_TRY(mTexture->setStorage(context, type, levels, internalFormat, size));
mState.clearImageDescs();
mState.setImageDescChain(0, static_cast<GLuint>(levels - 1), size, Format(internalFormat),
InitState::MayNeedInit);
// Changing the texture to immutable can trigger a change in the base and max levels:
// GLES 3.0.4 section 3.8.10 pg 158:
// "For immutable-format textures, levelbase is clamped to the range[0;levels],levelmax is then
// clamped to the range[levelbase;levels].
mDirtyBits.set(DIRTY_BIT_BASE_LEVEL);
mDirtyBits.set(DIRTY_BIT_MAX_LEVEL);
signalDirtyStorage(InitState::MayNeedInit);
return angle::Result::Continue;
}
angle::Result Texture::setImageExternal(Context *context,
TextureTarget target,
GLint level,
GLenum internalFormat,
const Extents &size,
GLenum format,
GLenum type)
{
ASSERT(TextureTargetToType(target) == mState.mType);
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
ANGLE_TRY(orphanImages(context));
ImageIndex index = ImageIndex::MakeFromTarget(target, level, size.depth);
ANGLE_TRY(mTexture->setImageExternal(context, index, internalFormat, size, format, type));
InitState initState = InitState::Initialized;
mState.setImageDesc(target, level, ImageDesc(size, Format(internalFormat, type), initState));
ANGLE_TRY(handleMipmapGenerationHint(context, level));
signalDirtyStorage(initState);
return angle::Result::Continue;
}
angle::Result Texture::setStorageMultisample(Context *context,
TextureType type,
GLsizei samples,
GLint internalFormat,
const Extents &size,
bool fixedSampleLocations)
{
ASSERT(type == mState.mType);
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
ANGLE_TRY(orphanImages(context));
ANGLE_TRY(mTexture->setStorageMultisample(context, type, samples, internalFormat, size,
fixedSampleLocations));
mState.mImmutableFormat = true;
mState.mImmutableLevels = static_cast<GLuint>(1);
mState.clearImageDescs();
mState.setImageDescChainMultisample(size, Format(internalFormat), samples, fixedSampleLocations,
InitState::MayNeedInit);
signalDirtyStorage(InitState::MayNeedInit);
return angle::Result::Continue;
}
angle::Result Texture::setStorageExternalMemory(Context *context,
TextureType type,
GLsizei levels,
GLenum internalFormat,
const Extents &size,
MemoryObject *memoryObject,
GLuint64 offset)
{
ASSERT(type == mState.mType);
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
ANGLE_TRY(orphanImages(context));
ANGLE_TRY(mTexture->setStorageExternalMemory(context, type, levels, internalFormat, size,
memoryObject, offset));
mState.mImmutableFormat = true;
mState.mImmutableLevels = static_cast<GLuint>(levels);
mState.clearImageDescs();
mState.setImageDescChain(0, static_cast<GLuint>(levels - 1), size, Format(internalFormat),
InitState::MayNeedInit);
// Changing the texture to immutable can trigger a change in the base and max levels:
// GLES 3.0.4 section 3.8.10 pg 158:
// "For immutable-format textures, levelbase is clamped to the range[0;levels],levelmax is then
// clamped to the range[levelbase;levels].
mDirtyBits.set(DIRTY_BIT_BASE_LEVEL);
mDirtyBits.set(DIRTY_BIT_MAX_LEVEL);
signalDirtyStorage(InitState::Initialized);
return angle::Result::Continue;
}
angle::Result Texture::generateMipmap(Context *context)
{
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
// EGL_KHR_gl_image states that images are only orphaned when generating mipmaps if the texture
// is not mip complete.
if (!isMipmapComplete())
{
ANGLE_TRY(orphanImages(context));
}
const GLuint baseLevel = mState.getEffectiveBaseLevel();
const GLuint maxLevel = mState.getMipmapMaxLevel();
if (maxLevel <= baseLevel)
{
return angle::Result::Continue;
}
if (hasAnyDirtyBit())
{
ANGLE_TRY(syncState(context));
}
// Clear the base image(s) immediately if needed
if (context->isRobustResourceInitEnabled())
{
ImageIndexIterator it =
ImageIndexIterator::MakeGeneric(mState.mType, baseLevel, baseLevel + 1,
ImageIndex::kEntireLevel, ImageIndex::kEntireLevel);
while (it.hasNext())
{
const ImageIndex index = it.next();
const ImageDesc &desc = mState.getImageDesc(index.getTarget(), index.getLevelIndex());
if (desc.initState == InitState::MayNeedInit)
{
ANGLE_TRY(initializeContents(context, index));
}
}
}
ANGLE_TRY(mTexture->generateMipmap(context));
// Propagate the format and size of the bsae mip to the smaller ones. Cube maps are guaranteed
// to have faces of the same size and format so any faces can be picked.
const ImageDesc &baseImageInfo = mState.getImageDesc(mState.getBaseImageTarget(), baseLevel);
mState.setImageDescChain(baseLevel, maxLevel, baseImageInfo.size, baseImageInfo.format,
InitState::Initialized);
signalDirtyStorage(InitState::Initialized);
return angle::Result::Continue;
}
angle::Result Texture::bindTexImageFromSurface(Context *context, egl::Surface *surface)
{
ASSERT(surface);
if (mBoundSurface)
{
ANGLE_TRY(releaseTexImageFromSurface(context));
}
ANGLE_TRY(mTexture->bindTexImage(context, surface));
mBoundSurface = surface;
// Set the image info to the size and format of the surface
ASSERT(mState.mType == TextureType::_2D || mState.mType == TextureType::Rectangle);
Extents size(surface->getWidth(), surface->getHeight(), 1);
ImageDesc desc(size, surface->getBindTexImageFormat(), InitState::Initialized);
mState.setImageDesc(NonCubeTextureTypeToTarget(mState.mType), 0, desc);
signalDirtyStorage(InitState::Initialized);
return angle::Result::Continue;
}
angle::Result Texture::releaseTexImageFromSurface(const Context *context)
{
ASSERT(mBoundSurface);
mBoundSurface = nullptr;
ANGLE_TRY(mTexture->releaseTexImage(context));
// Erase the image info for level 0
ASSERT(mState.mType == TextureType::_2D || mState.mType == TextureType::Rectangle);
mState.clearImageDesc(NonCubeTextureTypeToTarget(mState.mType), 0);
signalDirtyStorage(InitState::Initialized);
return angle::Result::Continue;
}
void Texture::bindStream(egl::Stream *stream)
{
ASSERT(stream);
// It should not be possible to bind a texture already bound to another stream
ASSERT(mBoundStream == nullptr);
mBoundStream = stream;
ASSERT(mState.mType == TextureType::External);
}
void Texture::releaseStream()
{
ASSERT(mBoundStream);
mBoundStream = nullptr;
}
angle::Result Texture::acquireImageFromStream(const Context *context,
const egl::Stream::GLTextureDescription &desc)
{
ASSERT(mBoundStream != nullptr);
ANGLE_TRY(mTexture->setImageExternal(context, mState.mType, mBoundStream, desc));
Extents size(desc.width, desc.height, 1);
mState.setImageDesc(NonCubeTextureTypeToTarget(mState.mType), 0,
ImageDesc(size, Format(desc.internalFormat), InitState::Initialized));
signalDirtyStorage(InitState::Initialized);
return angle::Result::Continue;
}
angle::Result Texture::releaseImageFromStream(const Context *context)
{
ASSERT(mBoundStream != nullptr);
ANGLE_TRY(mTexture->setImageExternal(context, mState.mType, nullptr,
egl::Stream::GLTextureDescription()));
// Set to incomplete
mState.clearImageDesc(NonCubeTextureTypeToTarget(mState.mType), 0);
signalDirtyStorage(InitState::Initialized);
return angle::Result::Continue;
}
angle::Result Texture::releaseTexImageInternal(Context *context)
{
if (mBoundSurface)
{
// Notify the surface
egl::Error eglErr = mBoundSurface->releaseTexImageFromTexture(context);
// TODO(jmadill): Remove this once refactor is complete. http://anglebug.com/3041
if (eglErr.isError())
{
context->handleError(GL_INVALID_OPERATION, "Error releasing tex image from texture",
__FILE__, ANGLE_FUNCTION, __LINE__);
}
// Then, call the same method as from the surface
ANGLE_TRY(releaseTexImageFromSurface(context));
}
return angle::Result::Continue;
}
angle::Result Texture::setEGLImageTarget(Context *context,
TextureType type,
egl::Image *imageTarget)
{
ASSERT(type == mState.mType);
ASSERT(type == TextureType::_2D || type == TextureType::External);
// Release from previous calls to eglBindTexImage, to avoid calling the Impl after
ANGLE_TRY(releaseTexImageInternal(context));
ANGLE_TRY(orphanImages(context));
ANGLE_TRY(mTexture->setEGLImageTarget(context, type, imageTarget));
setTargetImage(context, imageTarget);
Extents size(static_cast<int>(imageTarget->getWidth()),
static_cast<int>(imageTarget->getHeight()), 1);
auto initState = imageTarget->sourceInitState();
mState.clearImageDescs();
mState.setImageDesc(NonCubeTextureTypeToTarget(type), 0,
ImageDesc(size, imageTarget->getFormat(), initState));
signalDirtyStorage(initState);
return angle::Result::Continue;
}
Extents Texture::getAttachmentSize(const ImageIndex &imageIndex) const
{
// As an ImageIndex that represents an entire level of a cube map corresponds to 6 ImageDescs,
// we only allow querying ImageDesc on a complete cube map, and this ImageDesc is exactly the
// one that belongs to the first face of the cube map.
if (imageIndex.isEntireLevelCubeMap())
{
// A cube map texture is cube complete if the following conditions all hold true:
// - The levelbase arrays of each of the six texture images making up the cube map have
// identical, positive, and square dimensions.
if (!mState.isCubeComplete())
{
return Extents();
}
}
return mState.getImageDesc(imageIndex).size;
}
Format Texture::getAttachmentFormat(GLenum /*binding*/, const ImageIndex &imageIndex) const
{
// As an ImageIndex that represents an entire level of a cube map corresponds to 6 ImageDescs,
// we only allow querying ImageDesc on a complete cube map, and this ImageDesc is exactly the
// one that belongs to the first face of the cube map.
if (imageIndex.isEntireLevelCubeMap())
{
// A cube map texture is cube complete if the following conditions all hold true:
// - The levelbase arrays were each specified with the same effective internal format.
if (!mState.isCubeComplete())
{
return Format::Invalid();
}
}
return mState.getImageDesc(imageIndex).format;
}
GLsizei Texture::getAttachmentSamples(const ImageIndex &imageIndex) const
{
// We do not allow querying TextureTarget by an ImageIndex that represents an entire level of a
// cube map (See comments in function TextureTypeToTarget() in ImageIndex.cpp).
if (imageIndex.isEntireLevelCubeMap())
{
return 0;
}
return getSamples(imageIndex.getTarget(), imageIndex.getLevelIndex());
}
bool Texture::isRenderable(const Context *context,
GLenum binding,
const ImageIndex &imageIndex) const
{
if (isEGLImageTarget())
{
return ImageSibling::isRenderable(context, binding, imageIndex);
}
return getAttachmentFormat(binding, imageIndex)
.info->textureAttachmentSupport(context->getClientVersion(), context->getExtensions());
}
bool Texture::getAttachmentFixedSampleLocations(const ImageIndex &imageIndex) const
{
// We do not allow querying TextureTarget by an ImageIndex that represents an entire level of a
// cube map (See comments in function TextureTypeToTarget() in ImageIndex.cpp).
if (imageIndex.isEntireLevelCubeMap())
{
return true;
}
// ES3.1 (section 9.4) requires that the value of TEXTURE_FIXED_SAMPLE_LOCATIONS should be
// the same for all attached textures.
return getFixedSampleLocations(imageIndex.getTarget(), imageIndex.getLevelIndex());
}
void Texture::setBorderColor(const Context *context, const ColorGeneric &color)
{
mState.mSamplerState.setBorderColor(color);
signalDirtyState(DIRTY_BIT_BORDER_COLOR);
}
const ColorGeneric &Texture::getBorderColor() const
{
return mState.mSamplerState.getBorderColor();
}
void Texture::setCrop(const gl::Rectangle &rect)
{
mState.setCrop(rect);
}
const gl::Rectangle &Texture::getCrop() const
{
return mState.getCrop();
}
void Texture::setGenerateMipmapHint(GLenum hint)
{
mState.setGenerateMipmapHint(hint);
}
GLenum Texture::getGenerateMipmapHint() const
{
return mState.getGenerateMipmapHint();
}
void Texture::onAttach(const Context *context)
{
addRef();
}
void Texture::onDetach(const Context *context)
{
release(context);
}
GLuint Texture::getId() const
{
return id().value;
}
GLuint Texture::getNativeID() const
{
return mTexture->getNativeID();
}
angle::Result Texture::syncState(const Context *context)
{
ASSERT(hasAnyDirtyBit());
ANGLE_TRY(mTexture->syncState(context, mDirtyBits));
mDirtyBits.reset();
return angle::Result::Continue;
}
rx::FramebufferAttachmentObjectImpl *Texture::getAttachmentImpl() const
{
return mTexture;
}
bool Texture::isSamplerComplete(const Context *context, const Sampler *optionalSampler)
{
const auto &samplerState =
optionalSampler ? optionalSampler->getSamplerState() : mState.mSamplerState;
const auto &contextState = context->getState();
if (contextState.getContextID() != mCompletenessCache.context ||
!mCompletenessCache.samplerState.sameCompleteness(samplerState))
{
mCompletenessCache.context = context->getState().getContextID();
mCompletenessCache.samplerState = samplerState;
mCompletenessCache.samplerComplete =
mState.computeSamplerCompleteness(samplerState, contextState);
}
return mCompletenessCache.samplerComplete;
}
Texture::SamplerCompletenessCache::SamplerCompletenessCache()
: context(0), samplerState(), samplerComplete(false)
{}
void Texture::invalidateCompletenessCache() const
{
mCompletenessCache.context = 0;
}
angle::Result Texture::ensureInitialized(const Context *context)
{
if (!context->isRobustResourceInitEnabled() || mState.mInitState == InitState::Initialized)
{
return angle::Result::Continue;
}
bool anyDirty = false;
ImageIndexIterator it =
ImageIndexIterator::MakeGeneric(mState.mType, 0, IMPLEMENTATION_MAX_TEXTURE_LEVELS + 1,
ImageIndex::kEntireLevel, ImageIndex::kEntireLevel);
while (it.hasNext())
{
const ImageIndex index = it.next();
ImageDesc &desc =
mState.mImageDescs[GetImageDescIndex(index.getTarget(), index.getLevelIndex())];
if (desc.initState == InitState::MayNeedInit)
{
ASSERT(mState.mInitState == InitState::MayNeedInit);
ANGLE_TRY(initializeContents(context, index));
desc.initState = InitState::Initialized;
anyDirty = true;
}
}
if (anyDirty)
{
signalDirtyStorage(InitState::Initialized);
}
mState.mInitState = InitState::Initialized;
return angle::Result::Continue;
}
InitState Texture::initState(const ImageIndex &imageIndex) const
{
// As an ImageIndex that represents an entire level of a cube map corresponds to 6 ImageDescs,
// we need to check all the related ImageDescs.
if (imageIndex.isEntireLevelCubeMap())
{
const GLint levelIndex = imageIndex.getLevelIndex();
for (TextureTarget cubeFaceTarget : AllCubeFaceTextureTargets())
{
if (mState.getImageDesc(cubeFaceTarget, levelIndex).initState == InitState::MayNeedInit)
{
return InitState::MayNeedInit;
}
}
return InitState::Initialized;
}
return mState.getImageDesc(imageIndex).initState;
}
void Texture::setInitState(const ImageIndex &imageIndex, InitState initState)
{
// As an ImageIndex that represents an entire level of a cube map corresponds to 6 ImageDescs,
// we need to update all the related ImageDescs.
if (imageIndex.isEntireLevelCubeMap())
{
const GLint levelIndex = imageIndex.getLevelIndex();
for (TextureTarget cubeFaceTarget : AllCubeFaceTextureTargets())
{
setInitState(ImageIndex::MakeCubeMapFace(cubeFaceTarget, levelIndex), initState);
}
}
else
{
ImageDesc newDesc = mState.getImageDesc(imageIndex);
newDesc.initState = initState;
mState.setImageDesc(imageIndex.getTarget(), imageIndex.getLevelIndex(), newDesc);
}
}
angle::Result Texture::ensureSubImageInitialized(const Context *context,
TextureTarget target,
size_t level,
const gl::Box &area)
{
if (!context->isRobustResourceInitEnabled() || mState.mInitState == InitState::Initialized)
{
return angle::Result::Continue;
}
// Pre-initialize the texture contents if necessary.
// TODO(jmadill): Check if area overlaps the entire texture.
ImageIndex imageIndex =
ImageIndex::MakeFromTarget(target, static_cast<GLint>(level), area.depth);
const auto &desc = mState.getImageDesc(imageIndex);
if (desc.initState == InitState::MayNeedInit)
{
ASSERT(mState.mInitState == InitState::MayNeedInit);
bool coversWholeImage = area.x == 0 && area.y == 0 && area.z == 0 &&
area.width == desc.size.width && area.height == desc.size.height &&
area.depth == desc.size.depth;
if (!coversWholeImage)
{
ANGLE_TRY(initializeContents(context, imageIndex));
}
setInitState(imageIndex, InitState::Initialized);
}
return angle::Result::Continue;
}
angle::Result Texture::handleMipmapGenerationHint(Context *context, int level)
{
if (getGenerateMipmapHint() == GL_TRUE && level == 0)
{
ANGLE_TRY(generateMipmap(context));
}
return angle::Result::Continue;
}
void Texture::onSubjectStateChange(angle::SubjectIndex index, angle::SubjectMessage message)
{
ASSERT(message == angle::SubjectMessage::SubjectChanged);
mDirtyBits.set(DIRTY_BIT_IMPLEMENTATION);
signalDirtyState(DIRTY_BIT_IMPLEMENTATION);
// Notify siblings that we are dirty.
if (index == rx::kTextureImageImplObserverMessageIndex)
{
notifySiblings(message);
}
}
} // namespace gl