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queryutils.cpp
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queryutils.cpp
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//
// Copyright 2016 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.
//
// queryutils.cpp: Utilities for querying values from GL objects
#include "libANGLE/queryutils.h"
#include <algorithm>
#include "common/utilities.h"
#include "libANGLE/Buffer.h"
#include "libANGLE/Config.h"
#include "libANGLE/Context.h"
#include "libANGLE/Display.h"
#include "libANGLE/EGLSync.h"
#include "libANGLE/Fence.h"
#include "libANGLE/Framebuffer.h"
#include "libANGLE/GLES1State.h"
#include "libANGLE/MemoryObject.h"
#include "libANGLE/Program.h"
#include "libANGLE/Renderbuffer.h"
#include "libANGLE/Sampler.h"
#include "libANGLE/Shader.h"
#include "libANGLE/Surface.h"
#include "libANGLE/Texture.h"
#include "libANGLE/Uniform.h"
#include "libANGLE/VertexAttribute.h"
#include "libANGLE/queryconversions.h"
namespace gl
{
namespace
{
template <bool isPureInteger>
ColorGeneric ConvertToColor(const GLfloat *params)
{
if (isPureInteger)
{
UNREACHABLE();
return ColorGeneric(ColorI());
}
else
{
return ColorGeneric(ColorF::fromData(params));
}
}
template <bool isPureInteger>
ColorGeneric ConvertToColor(const GLint *params)
{
if (isPureInteger)
{
return ColorGeneric(ColorI(params[0], params[1], params[2], params[3]));
}
else
{
return ColorGeneric(ColorF(normalizedToFloat(params[0]), normalizedToFloat(params[1]),
normalizedToFloat(params[2]), normalizedToFloat(params[3])));
}
}
template <bool isPureInteger>
ColorGeneric ConvertToColor(const GLuint *params)
{
if (isPureInteger)
{
return ColorGeneric(ColorUI(params[0], params[1], params[2], params[3]));
}
else
{
UNREACHABLE();
return ColorGeneric(ColorF());
}
}
template <bool isPureInteger>
void ConvertFromColor(const ColorGeneric &color, GLfloat *outParams)
{
if (isPureInteger)
{
UNREACHABLE();
}
else
{
color.colorF.writeData(outParams);
}
}
template <bool isPureInteger>
void ConvertFromColor(const ColorGeneric &color, GLint *outParams)
{
if (isPureInteger)
{
outParams[0] = color.colorI.red;
outParams[1] = color.colorI.green;
outParams[2] = color.colorI.blue;
outParams[3] = color.colorI.alpha;
}
else
{
outParams[0] = floatToNormalized<GLint>(color.colorF.red);
outParams[1] = floatToNormalized<GLint>(color.colorF.green);
outParams[2] = floatToNormalized<GLint>(color.colorF.blue);
outParams[3] = floatToNormalized<GLint>(color.colorF.alpha);
}
}
template <bool isPureInteger>
void ConvertFromColor(const ColorGeneric &color, GLuint *outParams)
{
if (isPureInteger)
{
constexpr unsigned int kMinValue = 0;
outParams[0] = std::max(color.colorUI.red, kMinValue);
outParams[1] = std::max(color.colorUI.green, kMinValue);
outParams[2] = std::max(color.colorUI.blue, kMinValue);
outParams[3] = std::max(color.colorUI.alpha, kMinValue);
}
else
{
UNREACHABLE();
}
}
template <typename ParamType>
void QueryTexLevelParameterBase(const Texture *texture,
TextureTarget target,
GLint level,
GLenum pname,
ParamType *params)
{
ASSERT(texture != nullptr);
const InternalFormat *info = texture->getTextureState().getImageDesc(target, level).format.info;
switch (pname)
{
case GL_TEXTURE_RED_TYPE:
*params = CastFromGLintStateValue<ParamType>(
pname, info->redBits ? info->componentType : GL_NONE);
break;
case GL_TEXTURE_GREEN_TYPE:
*params = CastFromGLintStateValue<ParamType>(
pname, info->greenBits ? info->componentType : GL_NONE);
break;
case GL_TEXTURE_BLUE_TYPE:
*params = CastFromGLintStateValue<ParamType>(
pname, info->blueBits ? info->componentType : GL_NONE);
break;
case GL_TEXTURE_ALPHA_TYPE:
*params = CastFromGLintStateValue<ParamType>(
pname, info->alphaBits ? info->componentType : GL_NONE);
break;
case GL_TEXTURE_DEPTH_TYPE:
*params = CastFromGLintStateValue<ParamType>(
pname, info->depthBits ? info->componentType : GL_NONE);
break;
case GL_TEXTURE_RED_SIZE:
*params = CastFromGLintStateValue<ParamType>(pname, info->redBits);
break;
case GL_TEXTURE_GREEN_SIZE:
*params = CastFromGLintStateValue<ParamType>(pname, info->greenBits);
break;
case GL_TEXTURE_BLUE_SIZE:
*params = CastFromGLintStateValue<ParamType>(pname, info->blueBits);
break;
case GL_TEXTURE_ALPHA_SIZE:
*params = CastFromGLintStateValue<ParamType>(pname, info->alphaBits);
break;
case GL_TEXTURE_DEPTH_SIZE:
*params = CastFromGLintStateValue<ParamType>(pname, info->depthBits);
break;
case GL_TEXTURE_STENCIL_SIZE:
*params = CastFromGLintStateValue<ParamType>(pname, info->stencilBits);
break;
case GL_TEXTURE_SHARED_SIZE:
*params = CastFromGLintStateValue<ParamType>(pname, info->sharedBits);
break;
case GL_TEXTURE_INTERNAL_FORMAT:
*params = CastFromGLintStateValue<ParamType>(
pname, info->internalFormat ? info->internalFormat : GL_RGBA);
break;
case GL_TEXTURE_WIDTH:
*params = CastFromGLintStateValue<ParamType>(
pname, static_cast<uint32_t>(texture->getWidth(target, level)));
break;
case GL_TEXTURE_HEIGHT:
*params = CastFromGLintStateValue<ParamType>(
pname, static_cast<uint32_t>(texture->getHeight(target, level)));
break;
case GL_TEXTURE_DEPTH:
*params = CastFromGLintStateValue<ParamType>(
pname, static_cast<uint32_t>(texture->getDepth(target, level)));
break;
case GL_TEXTURE_SAMPLES:
*params = CastFromStateValue<ParamType>(pname, texture->getSamples(target, level));
break;
case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
*params = CastFromStateValue<ParamType>(
pname, static_cast<GLint>(texture->getFixedSampleLocations(target, level)));
break;
case GL_TEXTURE_COMPRESSED:
*params = CastFromStateValue<ParamType>(pname, static_cast<GLint>(info->compressed));
break;
case GL_MEMORY_SIZE_ANGLE:
*params =
CastFromStateValue<ParamType>(pname, texture->getLevelMemorySize(target, level));
break;
case GL_RESOURCE_INITIALIZED_ANGLE:
*params = CastFromGLintStateValue<ParamType>(
pname, texture->initState(GL_NONE, ImageIndex::MakeFromTarget(target, level)) ==
InitState::Initialized);
break;
case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
*params = CastFromStateValue<ParamType>(
pname, static_cast<GLint>(texture->getBuffer().id().value));
break;
case GL_TEXTURE_BUFFER_OFFSET:
*params = CastFromStateValue<ParamType>(
pname, static_cast<GLint>(texture->getBuffer().getOffset()));
break;
case GL_TEXTURE_BUFFER_SIZE:
*params = CastFromStateValue<ParamType>(
pname, static_cast<GLint>(GetBoundBufferAvailableSize(texture->getBuffer())));
break;
default:
UNREACHABLE();
break;
}
}
// This function is needed to handle fixed_point data.
// It can be used when some pname need special conversion from int/float/bool to fixed_point.
template <bool isGLfixed, typename QueryT, typename ParamType>
QueryT CastFromSpecialValue(GLenum pname, const ParamType param)
{
if (isGLfixed)
{
return static_cast<QueryT>(ConvertFloatToFixed(CastFromStateValue<GLfloat>(pname, param)));
}
else
{
return CastFromStateValue<QueryT>(pname, param);
}
}
template <bool isPureInteger, bool isGLfixed, typename ParamType>
void QueryTexParameterBase(const Context *context,
const Texture *texture,
GLenum pname,
ParamType *params)
{
ASSERT(texture != nullptr);
switch (pname)
{
case GL_TEXTURE_MAG_FILTER:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getMagFilter());
break;
case GL_TEXTURE_MIN_FILTER:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getMinFilter());
break;
case GL_TEXTURE_WRAP_S:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getWrapS());
break;
case GL_TEXTURE_WRAP_T:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getWrapT());
break;
case GL_TEXTURE_WRAP_R:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getWrapR());
break;
case GL_TEXTURE_IMMUTABLE_FORMAT:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getImmutableFormat());
break;
case GL_TEXTURE_IMMUTABLE_LEVELS:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getImmutableLevels());
break;
case GL_TEXTURE_USAGE_ANGLE:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getUsage());
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
*params =
CastFromSpecialValue<isGLfixed, ParamType>(pname, texture->getMaxAnisotropy());
break;
case GL_TEXTURE_SWIZZLE_R:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getSwizzleRed());
break;
case GL_TEXTURE_SWIZZLE_G:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getSwizzleGreen());
break;
case GL_TEXTURE_SWIZZLE_B:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getSwizzleBlue());
break;
case GL_TEXTURE_SWIZZLE_A:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getSwizzleAlpha());
break;
case GL_TEXTURE_BASE_LEVEL:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getBaseLevel());
break;
case GL_TEXTURE_MAX_LEVEL:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getMaxLevel());
break;
case GL_TEXTURE_MIN_LOD:
*params = CastFromSpecialValue<isGLfixed, ParamType>(pname, texture->getMinLod());
break;
case GL_TEXTURE_MAX_LOD:
*params = CastFromSpecialValue<isGLfixed, ParamType>(pname, texture->getMaxLod());
break;
case GL_TEXTURE_COMPARE_MODE:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getCompareMode());
break;
case GL_TEXTURE_COMPARE_FUNC:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getCompareFunc());
break;
case GL_TEXTURE_SRGB_DECODE_EXT:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getSRGBDecode());
break;
case GL_TEXTURE_FORMAT_SRGB_OVERRIDE_EXT:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getSRGBOverride());
break;
case GL_DEPTH_STENCIL_TEXTURE_MODE:
*params =
CastFromGLintStateValue<ParamType>(pname, texture->getDepthStencilTextureMode());
break;
case GL_TEXTURE_CROP_RECT_OES:
{
const gl::Rectangle &crop = texture->getCrop();
params[0] = CastFromSpecialValue<isGLfixed, ParamType>(pname, crop.x);
params[1] = CastFromSpecialValue<isGLfixed, ParamType>(pname, crop.y);
params[2] = CastFromSpecialValue<isGLfixed, ParamType>(pname, crop.width);
params[3] = CastFromSpecialValue<isGLfixed, ParamType>(pname, crop.height);
break;
}
case GL_GENERATE_MIPMAP:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getGenerateMipmapHint());
break;
case GL_MEMORY_SIZE_ANGLE:
*params = CastFromSpecialValue<isGLfixed, ParamType>(pname, texture->getMemorySize());
break;
case GL_TEXTURE_BORDER_COLOR:
ConvertFromColor<isPureInteger>(texture->getBorderColor(), params);
break;
case GL_TEXTURE_NATIVE_ID_ANGLE:
*params = CastFromSpecialValue<isGLfixed, ParamType>(pname, texture->getNativeID());
break;
case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
*params = CastFromGLintStateValue<ParamType>(
pname, texture->getImplementationColorReadFormat(context));
break;
case GL_IMPLEMENTATION_COLOR_READ_TYPE:
*params = CastFromGLintStateValue<ParamType>(
pname, texture->getImplementationColorReadType(context));
break;
case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
*params =
CastFromGLintStateValue<ParamType>(pname, GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE);
break;
case GL_RESOURCE_INITIALIZED_ANGLE:
*params = CastFromGLintStateValue<ParamType>(
pname, texture->initState() == InitState::Initialized);
break;
case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
*params = CastFromGLintStateValue<ParamType>(
pname, texture->getRequiredTextureImageUnits(context));
break;
case GL_TEXTURE_PROTECTED_EXT:
*params = CastFromGLintStateValue<ParamType>(pname, texture->hasProtectedContent());
break;
case GL_TEXTURE_TILING_EXT:
*params = CastFromGLintStateValue<ParamType>(pname, texture->getTilingMode());
break;
default:
UNREACHABLE();
break;
}
}
// this function is needed to handle OES_FIXED_POINT.
// Some pname values can take in GLfixed values and may need to be converted
template <bool isGLfixed, typename ReturnType, typename ParamType>
ReturnType ConvertTexParam(GLenum pname, const ParamType param)
{
if (isGLfixed)
{
return CastQueryValueTo<ReturnType>(pname,
ConvertFixedToFloat(static_cast<GLfixed>(param)));
}
else
{
return CastQueryValueTo<ReturnType>(pname, param);
}
}
template <bool isPureInteger, bool isGLfixed, typename ParamType>
void SetTexParameterBase(Context *context, Texture *texture, GLenum pname, const ParamType *params)
{
ASSERT(texture != nullptr);
switch (pname)
{
case GL_TEXTURE_WRAP_S:
texture->setWrapS(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_WRAP_T:
texture->setWrapT(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_WRAP_R:
texture->setWrapR(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_MIN_FILTER:
texture->setMinFilter(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_MAG_FILTER:
texture->setMagFilter(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_USAGE_ANGLE:
texture->setUsage(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
texture->setMaxAnisotropy(context,
ConvertTexParam<isGLfixed, GLfloat>(pname, params[0]));
break;
case GL_TEXTURE_COMPARE_MODE:
texture->setCompareMode(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_COMPARE_FUNC:
texture->setCompareFunc(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_SWIZZLE_R:
texture->setSwizzleRed(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_SWIZZLE_G:
texture->setSwizzleGreen(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_SWIZZLE_B:
texture->setSwizzleBlue(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_SWIZZLE_A:
texture->setSwizzleAlpha(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_BASE_LEVEL:
{
(void)(texture->setBaseLevel(
context, clampCast<GLuint>(CastQueryValueTo<GLint>(pname, params[0]))));
break;
}
case GL_TEXTURE_MAX_LEVEL:
texture->setMaxLevel(context,
clampCast<GLuint>(CastQueryValueTo<GLint>(pname, params[0])));
break;
case GL_TEXTURE_MIN_LOD:
texture->setMinLod(context, CastQueryValueTo<GLfloat>(pname, params[0]));
break;
case GL_TEXTURE_MAX_LOD:
texture->setMaxLod(context, CastQueryValueTo<GLfloat>(pname, params[0]));
break;
case GL_DEPTH_STENCIL_TEXTURE_MODE:
texture->setDepthStencilTextureMode(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_SRGB_DECODE_EXT:
texture->setSRGBDecode(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_FORMAT_SRGB_OVERRIDE_EXT:
texture->setSRGBOverride(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_CROP_RECT_OES:
texture->setCrop(gl::Rectangle(ConvertTexParam<isGLfixed, GLint>(pname, params[0]),
ConvertTexParam<isGLfixed, GLint>(pname, params[1]),
ConvertTexParam<isGLfixed, GLint>(pname, params[2]),
ConvertTexParam<isGLfixed, GLint>(pname, params[3])));
break;
case GL_GENERATE_MIPMAP:
texture->setGenerateMipmapHint(ConvertToGLenum(params[0]));
break;
case GL_TEXTURE_BORDER_COLOR:
texture->setBorderColor(context, ConvertToColor<isPureInteger>(params));
break;
case GL_RESOURCE_INITIALIZED_ANGLE:
texture->setInitState(ConvertToBool(params[0]) ? InitState::Initialized
: InitState::MayNeedInit);
break;
case GL_TEXTURE_PROTECTED_EXT:
texture->setProtectedContent(context, (params[0] == GL_TRUE));
break;
case GL_RENDERABILITY_VALIDATION_ANGLE:
texture->setRenderabilityValidation(context, (params[0] == GL_TRUE));
break;
case GL_TEXTURE_TILING_EXT:
texture->setTilingMode(context, ConvertToGLenum(pname, params[0]));
break;
default:
UNREACHABLE();
break;
}
}
template <bool isPureInteger, typename ParamType>
void QuerySamplerParameterBase(const Sampler *sampler, GLenum pname, ParamType *params)
{
switch (pname)
{
case GL_TEXTURE_MIN_FILTER:
*params = CastFromGLintStateValue<ParamType>(pname, sampler->getMinFilter());
break;
case GL_TEXTURE_MAG_FILTER:
*params = CastFromGLintStateValue<ParamType>(pname, sampler->getMagFilter());
break;
case GL_TEXTURE_WRAP_S:
*params = CastFromGLintStateValue<ParamType>(pname, sampler->getWrapS());
break;
case GL_TEXTURE_WRAP_T:
*params = CastFromGLintStateValue<ParamType>(pname, sampler->getWrapT());
break;
case GL_TEXTURE_WRAP_R:
*params = CastFromGLintStateValue<ParamType>(pname, sampler->getWrapR());
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
*params = CastFromStateValue<ParamType>(pname, sampler->getMaxAnisotropy());
break;
case GL_TEXTURE_MIN_LOD:
*params = CastFromStateValue<ParamType>(pname, sampler->getMinLod());
break;
case GL_TEXTURE_MAX_LOD:
*params = CastFromStateValue<ParamType>(pname, sampler->getMaxLod());
break;
case GL_TEXTURE_COMPARE_MODE:
*params = CastFromGLintStateValue<ParamType>(pname, sampler->getCompareMode());
break;
case GL_TEXTURE_COMPARE_FUNC:
*params = CastFromGLintStateValue<ParamType>(pname, sampler->getCompareFunc());
break;
case GL_TEXTURE_SRGB_DECODE_EXT:
*params = CastFromGLintStateValue<ParamType>(pname, sampler->getSRGBDecode());
break;
case GL_TEXTURE_BORDER_COLOR:
ConvertFromColor<isPureInteger>(sampler->getBorderColor(), params);
break;
default:
UNREACHABLE();
break;
}
}
template <bool isPureInteger, typename ParamType>
void SetSamplerParameterBase(Context *context,
Sampler *sampler,
GLenum pname,
const ParamType *params)
{
switch (pname)
{
case GL_TEXTURE_WRAP_S:
sampler->setWrapS(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_WRAP_T:
sampler->setWrapT(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_WRAP_R:
sampler->setWrapR(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_MIN_FILTER:
sampler->setMinFilter(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_MAG_FILTER:
sampler->setMagFilter(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
sampler->setMaxAnisotropy(context, CastQueryValueTo<GLfloat>(pname, params[0]));
break;
case GL_TEXTURE_COMPARE_MODE:
sampler->setCompareMode(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_COMPARE_FUNC:
sampler->setCompareFunc(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_MIN_LOD:
sampler->setMinLod(context, CastQueryValueTo<GLfloat>(pname, params[0]));
break;
case GL_TEXTURE_MAX_LOD:
sampler->setMaxLod(context, CastQueryValueTo<GLfloat>(pname, params[0]));
break;
case GL_TEXTURE_SRGB_DECODE_EXT:
sampler->setSRGBDecode(context, ConvertToGLenum(pname, params[0]));
break;
case GL_TEXTURE_BORDER_COLOR:
sampler->setBorderColor(context, ConvertToColor<isPureInteger>(params));
break;
default:
UNREACHABLE();
break;
}
sampler->onStateChange(angle::SubjectMessage::ContentsChanged);
}
// Warning: you should ensure binding really matches attrib.bindingIndex before using this function.
template <typename ParamType, typename CurrentDataType, size_t CurrentValueCount>
void QueryVertexAttribBase(const VertexAttribute &attrib,
const VertexBinding &binding,
const CurrentDataType (¤tValueData)[CurrentValueCount],
GLenum pname,
ParamType *params)
{
switch (pname)
{
case GL_CURRENT_VERTEX_ATTRIB:
for (size_t i = 0; i < CurrentValueCount; ++i)
{
params[i] = CastFromStateValue<ParamType>(pname, currentValueData[i]);
}
break;
case GL_VERTEX_ATTRIB_ARRAY_ENABLED:
*params = CastFromStateValue<ParamType>(pname, static_cast<GLint>(attrib.enabled));
break;
case GL_VERTEX_ATTRIB_ARRAY_SIZE:
*params = CastFromGLintStateValue<ParamType>(pname, attrib.format->channelCount);
break;
case GL_VERTEX_ATTRIB_ARRAY_STRIDE:
*params = CastFromGLintStateValue<ParamType>(pname, attrib.vertexAttribArrayStride);
break;
case GL_VERTEX_ATTRIB_ARRAY_TYPE:
*params = CastFromGLintStateValue<ParamType>(
pname, gl::ToGLenum(attrib.format->vertexAttribType));
break;
case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
*params =
CastFromStateValue<ParamType>(pname, static_cast<GLint>(attrib.format->isNorm()));
break;
case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
*params = CastFromGLintStateValue<ParamType>(pname, binding.getBuffer().id().value);
break;
case GL_VERTEX_ATTRIB_ARRAY_DIVISOR:
*params = CastFromStateValue<ParamType>(pname, binding.getDivisor());
break;
case GL_VERTEX_ATTRIB_ARRAY_INTEGER:
*params = CastFromGLintStateValue<ParamType>(pname, attrib.format->isPureInt());
break;
case GL_VERTEX_ATTRIB_BINDING:
*params = CastFromGLintStateValue<ParamType>(pname, attrib.bindingIndex);
break;
case GL_VERTEX_ATTRIB_RELATIVE_OFFSET:
*params = CastFromGLintStateValue<ParamType>(pname, attrib.relativeOffset);
break;
default:
UNREACHABLE();
break;
}
}
template <typename ParamType>
void QueryBufferParameterBase(const Buffer *buffer, GLenum pname, ParamType *params)
{
ASSERT(buffer != nullptr);
switch (pname)
{
case GL_BUFFER_USAGE:
*params = CastFromGLintStateValue<ParamType>(pname, ToGLenum(buffer->getUsage()));
break;
case GL_BUFFER_SIZE:
*params = CastFromStateValue<ParamType>(pname, buffer->getSize());
break;
case GL_BUFFER_ACCESS_FLAGS:
*params = CastFromGLintStateValue<ParamType>(pname, buffer->getAccessFlags());
break;
case GL_BUFFER_ACCESS_OES:
*params = CastFromGLintStateValue<ParamType>(pname, buffer->getAccess());
break;
case GL_BUFFER_MAPPED:
*params = CastFromStateValue<ParamType>(pname, buffer->isMapped());
break;
case GL_BUFFER_MAP_OFFSET:
*params = CastFromStateValue<ParamType>(pname, buffer->getMapOffset());
break;
case GL_BUFFER_MAP_LENGTH:
*params = CastFromStateValue<ParamType>(pname, buffer->getMapLength());
break;
case GL_MEMORY_SIZE_ANGLE:
*params = CastFromStateValue<ParamType>(pname, buffer->getMemorySize());
break;
case GL_BUFFER_IMMUTABLE_STORAGE_EXT:
*params = CastFromStateValue<ParamType>(pname, buffer->isImmutable());
break;
case GL_BUFFER_STORAGE_FLAGS_EXT:
*params = CastFromGLintStateValue<ParamType>(pname, buffer->getStorageExtUsageFlags());
break;
case GL_RESOURCE_INITIALIZED_ANGLE:
*params = CastFromStateValue<ParamType>(
pname, ConvertToGLBoolean(buffer->initState() == InitState::Initialized));
break;
default:
UNREACHABLE();
break;
}
}
template <typename T>
GLint GetCommonVariableProperty(const T &var, GLenum prop)
{
switch (prop)
{
case GL_TYPE:
return clampCast<GLint>(var.type);
case GL_ARRAY_SIZE:
// Queryable variables are guaranteed not to be arrays of arrays or arrays of structs,
// see GLES 3.1 spec section 7.3.1.1 page 77.
return clampCast<GLint>(var.getBasicTypeElementCount());
case GL_NAME_LENGTH:
// ES31 spec p84: This counts the terminating null char.
return clampCast<GLint>(var.name.size() + 1u);
default:
UNREACHABLE();
return GL_INVALID_VALUE;
}
}
GLint GetInputResourceProperty(const Program *program, GLuint index, GLenum prop)
{
const ProgramInput &variable = program->getInputResource(index);
switch (prop)
{
case GL_TYPE:
return clampCast<GLint>(variable.getType());
case GL_ARRAY_SIZE:
return clampCast<GLint>(variable.getBasicTypeElementCount());
case GL_NAME_LENGTH:
return clampCast<GLint>(program->getInputResourceName(index).size() + 1u);
case GL_LOCATION:
return variable.isBuiltIn() ? GL_INVALID_INDEX : variable.getLocation();
// The query is targeted at the set of active input variables used by the first shader stage
// of program. If program contains multiple shader stages then input variables from any
// stage other than the first will not be enumerated. Since we found the variable to get
// this far, we know it exists in the first attached shader stage.
case GL_REFERENCED_BY_VERTEX_SHADER:
return program->getState().getFirstAttachedShaderStageType() == ShaderType::Vertex;
case GL_REFERENCED_BY_FRAGMENT_SHADER:
return program->getState().getFirstAttachedShaderStageType() == ShaderType::Fragment;
case GL_REFERENCED_BY_COMPUTE_SHADER:
return program->getState().getFirstAttachedShaderStageType() == ShaderType::Compute;
case GL_REFERENCED_BY_GEOMETRY_SHADER_EXT:
return program->getState().getFirstAttachedShaderStageType() == ShaderType::Geometry;
case GL_REFERENCED_BY_TESS_CONTROL_SHADER_EXT:
return program->getState().getFirstAttachedShaderStageType() == ShaderType::TessControl;
case GL_REFERENCED_BY_TESS_EVALUATION_SHADER_EXT:
return program->getState().getFirstAttachedShaderStageType() ==
ShaderType::TessEvaluation;
case GL_IS_PER_PATCH_EXT:
return variable.isPatch();
default:
UNREACHABLE();
return GL_INVALID_VALUE;
}
}
GLint GetOutputResourceProperty(const Program *program, GLuint index, const GLenum prop)
{
const sh::ShaderVariable &outputVariable = program->getOutputResource(index);
switch (prop)
{
case GL_TYPE:
case GL_ARRAY_SIZE:
return GetCommonVariableProperty(outputVariable, prop);
case GL_NAME_LENGTH:
return clampCast<GLint>(program->getOutputResourceName(index).size() + 1u);
case GL_LOCATION:
return outputVariable.location;
case GL_LOCATION_INDEX_EXT:
// EXT_blend_func_extended
if (program->getState().getLastAttachedShaderStageType() == gl::ShaderType::Fragment)
{
return program->getFragDataIndex(outputVariable.name);
}
return GL_INVALID_INDEX;
// The set of active user-defined outputs from the final shader stage in this program. If
// the final stage is a Fragment Shader, then this represents the fragment outputs that get
// written to individual color buffers. If the program only contains a Compute Shader, then
// there are no user-defined outputs.
case GL_REFERENCED_BY_VERTEX_SHADER:
return program->getState().getLastAttachedShaderStageType() == ShaderType::Vertex;
case GL_REFERENCED_BY_FRAGMENT_SHADER:
return program->getState().getLastAttachedShaderStageType() == ShaderType::Fragment;
case GL_REFERENCED_BY_COMPUTE_SHADER:
return program->getState().getLastAttachedShaderStageType() == ShaderType::Compute;
case GL_REFERENCED_BY_GEOMETRY_SHADER_EXT:
return program->getState().getLastAttachedShaderStageType() == ShaderType::Geometry;
case GL_REFERENCED_BY_TESS_CONTROL_SHADER_EXT:
return program->getState().getLastAttachedShaderStageType() == ShaderType::TessControl;
case GL_REFERENCED_BY_TESS_EVALUATION_SHADER_EXT:
return program->getState().getLastAttachedShaderStageType() ==
ShaderType::TessEvaluation;
case GL_IS_PER_PATCH_EXT:
return outputVariable.isPatch;
default:
UNREACHABLE();
return GL_INVALID_VALUE;
}
}
GLint GetTransformFeedbackVaryingResourceProperty(const Program *program,
GLuint index,
const GLenum prop)
{
const auto &tfVariable = program->getTransformFeedbackVaryingResource(index);
switch (prop)
{
case GL_TYPE:
return clampCast<GLint>(tfVariable.type);
case GL_ARRAY_SIZE:
return clampCast<GLint>(tfVariable.size());
case GL_NAME_LENGTH:
return clampCast<GLint>(tfVariable.nameWithArrayIndex().size() + 1);
default:
UNREACHABLE();
return GL_INVALID_VALUE;
}
}
GLint QueryProgramInterfaceActiveResources(const Program *program, GLenum programInterface)
{
switch (programInterface)
{
case GL_PROGRAM_INPUT:
return clampCast<GLint>(program->getState().getProgramInputs().size());
case GL_PROGRAM_OUTPUT:
return clampCast<GLint>(program->getState().getOutputVariables().size());
case GL_UNIFORM:
return clampCast<GLint>(program->getState().getUniforms().size());
case GL_UNIFORM_BLOCK:
return clampCast<GLint>(program->getState().getUniformBlocks().size());
case GL_ATOMIC_COUNTER_BUFFER:
return clampCast<GLint>(program->getState().getAtomicCounterBuffers().size());
case GL_BUFFER_VARIABLE:
return clampCast<GLint>(program->getState().getBufferVariables().size());
case GL_SHADER_STORAGE_BLOCK:
return clampCast<GLint>(program->getState().getShaderStorageBlocks().size());
case GL_TRANSFORM_FEEDBACK_VARYING:
return clampCast<GLint>(program->getTransformFeedbackVaryingCount());
default:
UNREACHABLE();
return 0;
}
}
template <typename T, typename M>
GLint FindMaxSize(const std::vector<T> &resources, M member)
{
GLint max = 0;
for (const T &resource : resources)
{
max = std::max(max, clampCast<GLint>((resource.*member).size()));
}
return max;
}
GLint FindMaxNameLength(const std::vector<std::string> &names)
{
GLint max = 0;
for (const std::string &name : names)
{
max = std::max(max, clampCast<GLint>(name.size()));
}
return max;
}
GLint QueryProgramInterfaceMaxNameLength(const Program *program, GLenum programInterface)
{
GLint maxNameLength = 0;
switch (programInterface)
{
case GL_PROGRAM_INPUT:
maxNameLength = program->getInputResourceMaxNameSize();
break;
case GL_PROGRAM_OUTPUT:
maxNameLength = program->getOutputResourceMaxNameSize();
break;
case GL_UNIFORM:
maxNameLength = FindMaxNameLength(program->getState().getUniformNames());
break;
case GL_UNIFORM_BLOCK:
return program->getActiveUniformBlockMaxNameLength();
case GL_BUFFER_VARIABLE:
maxNameLength =
FindMaxSize(program->getState().getBufferVariables(), &BufferVariable::name);
break;
case GL_SHADER_STORAGE_BLOCK:
return program->getActiveShaderStorageBlockMaxNameLength();
case GL_TRANSFORM_FEEDBACK_VARYING:
return clampCast<GLint>(program->getTransformFeedbackVaryingMaxLength());
default:
UNREACHABLE();
return 0;
}
// This length includes an extra character for the null terminator.
return (maxNameLength == 0 ? 0 : maxNameLength + 1);
}
GLint QueryProgramInterfaceMaxNumActiveVariables(const Program *program, GLenum programInterface)
{
switch (programInterface)
{
case GL_UNIFORM_BLOCK:
return FindMaxSize(program->getState().getUniformBlocks(),
&InterfaceBlock::memberIndexes);
case GL_ATOMIC_COUNTER_BUFFER:
return FindMaxSize(program->getState().getAtomicCounterBuffers(),
&AtomicCounterBuffer::memberIndexes);
case GL_SHADER_STORAGE_BLOCK:
return FindMaxSize(program->getState().getShaderStorageBlocks(),
&InterfaceBlock::memberIndexes);
default:
UNREACHABLE();
return 0;
}
}
GLenum GetUniformPropertyEnum(GLenum prop)
{
switch (prop)
{
case GL_UNIFORM_TYPE:
return GL_TYPE;
case GL_UNIFORM_SIZE:
return GL_ARRAY_SIZE;
case GL_UNIFORM_NAME_LENGTH:
return GL_NAME_LENGTH;
case GL_UNIFORM_BLOCK_INDEX:
return GL_BLOCK_INDEX;
case GL_UNIFORM_OFFSET:
return GL_OFFSET;
case GL_UNIFORM_ARRAY_STRIDE:
return GL_ARRAY_STRIDE;
case GL_UNIFORM_MATRIX_STRIDE:
return GL_MATRIX_STRIDE;
case GL_UNIFORM_IS_ROW_MAJOR:
return GL_IS_ROW_MAJOR;
default:
return prop;
}
}
GLenum GetUniformBlockPropertyEnum(GLenum prop)
{
switch (prop)
{
case GL_UNIFORM_BLOCK_BINDING:
return GL_BUFFER_BINDING;
case GL_UNIFORM_BLOCK_DATA_SIZE:
return GL_BUFFER_DATA_SIZE;
case GL_UNIFORM_BLOCK_NAME_LENGTH:
return GL_NAME_LENGTH;
case GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS:
return GL_NUM_ACTIVE_VARIABLES;
case GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES:
return GL_ACTIVE_VARIABLES;