/*-------------------------------------------------------------------------
* drawElements Quality Program OpenGL ES Utilities
* ------------------------------------------------
*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*//*!
* \file
* \brief Texture format utilities.
*//*--------------------------------------------------------------------*/
#include "gluTextureUtil.hpp"
#include "gluRenderContext.hpp"
#include "gluContextInfo.hpp"
#include "tcuTextureUtil.hpp"
#include "tcuFormatUtil.hpp"
#include "glwEnums.hpp"
namespace glu
{
using std::string;
/*--------------------------------------------------------------------*//*!
* \brief Map tcu::TextureFormat to GL pixel transfer format.
*
* Maps generic texture format description to GL pixel transfer format.
* If no mapping is found, throws tcu::InternalError.
*
* \param texFormat Generic texture format.
* \return GL pixel transfer format.
*//*--------------------------------------------------------------------*/
TransferFormat getTransferFormat (tcu::TextureFormat texFormat)
{
using tcu::TextureFormat;
deUint32 format = GL_NONE;
deUint32 type = GL_NONE;
bool isInt = false;
switch (texFormat.type)
{
case TextureFormat::SIGNED_INT8:
case TextureFormat::SIGNED_INT16:
case TextureFormat::SIGNED_INT32:
case TextureFormat::UNSIGNED_INT8:
case TextureFormat::UNSIGNED_INT16:
case TextureFormat::UNSIGNED_INT32:
case TextureFormat::UNSIGNED_INT_1010102_REV:
isInt = true;
break;
default:
isInt = false;
break;
}
switch (texFormat.order)
{
case TextureFormat::A: format = GL_ALPHA; break;
case TextureFormat::L: format = GL_LUMINANCE; break;
case TextureFormat::LA: format = GL_LUMINANCE_ALPHA; break;
case TextureFormat::R: format = isInt ? GL_RED_INTEGER : GL_RED; break;
case TextureFormat::RG: format = isInt ? GL_RG_INTEGER : GL_RG; break;
case TextureFormat::RGB: format = isInt ? GL_RGB_INTEGER : GL_RGB; break;
case TextureFormat::RGBA: format = isInt ? GL_RGBA_INTEGER : GL_RGBA; break;
case TextureFormat::sR: format = GL_RED; break;
case TextureFormat::sRG: format = GL_RG; break;
case TextureFormat::sRGB: format = GL_RGB; break;
case TextureFormat::sRGBA: format = GL_RGBA; break;
case TextureFormat::D: format = GL_DEPTH_COMPONENT; break;
case TextureFormat::DS: format = GL_DEPTH_STENCIL; break;
case TextureFormat::S: format = GL_STENCIL_INDEX; break;
case TextureFormat::BGRA:
DE_ASSERT(!isInt);
format = GL_BGRA;
break;
default:
DE_ASSERT(false);
}
switch (texFormat.type)
{
case TextureFormat::SNORM_INT8: type = GL_BYTE; break;
case TextureFormat::SNORM_INT16: type = GL_SHORT; break;
case TextureFormat::UNORM_INT8: type = GL_UNSIGNED_BYTE; break;
case TextureFormat::UNORM_INT16: type = GL_UNSIGNED_SHORT; break;
case TextureFormat::UNORM_SHORT_565: type = GL_UNSIGNED_SHORT_5_6_5; break;
case TextureFormat::UNORM_SHORT_4444: type = GL_UNSIGNED_SHORT_4_4_4_4; break;
case TextureFormat::UNORM_SHORT_5551: type = GL_UNSIGNED_SHORT_5_5_5_1; break;
case TextureFormat::SIGNED_INT8: type = GL_BYTE; break;
case TextureFormat::SIGNED_INT16: type = GL_SHORT; break;
case TextureFormat::SIGNED_INT32: type = GL_INT; break;
case TextureFormat::UNSIGNED_INT8: type = GL_UNSIGNED_BYTE; break;
case TextureFormat::UNSIGNED_INT16: type = GL_UNSIGNED_SHORT; break;
case TextureFormat::UNSIGNED_INT32: type = GL_UNSIGNED_INT; break;
case TextureFormat::FLOAT: type = GL_FLOAT; break;
case TextureFormat::UNORM_INT_101010: type = GL_UNSIGNED_INT_2_10_10_10_REV; break;
case TextureFormat::UNORM_INT_1010102_REV: type = GL_UNSIGNED_INT_2_10_10_10_REV; break;
case TextureFormat::UNSIGNED_INT_1010102_REV: type = GL_UNSIGNED_INT_2_10_10_10_REV; break;
case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: type = GL_UNSIGNED_INT_10F_11F_11F_REV; break;
case TextureFormat::UNSIGNED_INT_999_E5_REV: type = GL_UNSIGNED_INT_5_9_9_9_REV; break;
case TextureFormat::HALF_FLOAT: type = GL_HALF_FLOAT; break;
case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV: type = GL_FLOAT_32_UNSIGNED_INT_24_8_REV; break;
case TextureFormat::UNSIGNED_INT_24_8: type = texFormat.order == TextureFormat::D
? GL_UNSIGNED_INT
: GL_UNSIGNED_INT_24_8; break;
default:
throw tcu::InternalError("Can't map texture format to GL transfer format");
}
return TransferFormat(format, type);
}
/*--------------------------------------------------------------------*//*!
* \brief Map tcu::TextureFormat to GL internal sized format.
*
* Maps generic texture format description to GL internal format.
* If no mapping is found, throws tcu::InternalError.
*
* \param texFormat Generic texture format.
* \return GL sized internal format.
*//*--------------------------------------------------------------------*/
deUint32 getInternalFormat (tcu::TextureFormat texFormat)
{
DE_STATIC_ASSERT(tcu::TextureFormat::CHANNELORDER_LAST < (1<<16));
DE_STATIC_ASSERT(tcu::TextureFormat::CHANNELTYPE_LAST < (1<<16));
#define PACK_FMT(ORDER, TYPE) ((int(ORDER) << 16) | int(TYPE))
#define FMT_CASE(ORDER, TYPE) PACK_FMT(tcu::TextureFormat::ORDER, tcu::TextureFormat::TYPE)
switch (PACK_FMT(texFormat.order, texFormat.type))
{
case FMT_CASE(RGBA, UNORM_SHORT_5551): return GL_RGB5_A1;
case FMT_CASE(RGBA, UNORM_SHORT_4444): return GL_RGBA4;
case FMT_CASE(RGB, UNORM_SHORT_565): return GL_RGB565;
case FMT_CASE(D, UNORM_INT16): return GL_DEPTH_COMPONENT16;
case FMT_CASE(S, UNSIGNED_INT8): return GL_STENCIL_INDEX8;
case FMT_CASE(RGBA, FLOAT): return GL_RGBA32F;
case FMT_CASE(RGBA, SIGNED_INT32): return GL_RGBA32I;
case FMT_CASE(RGBA, UNSIGNED_INT32): return GL_RGBA32UI;
case FMT_CASE(RGBA, UNORM_INT16): return GL_RGBA16;
case FMT_CASE(RGBA, SNORM_INT16): return GL_RGBA16_SNORM;
case FMT_CASE(RGBA, HALF_FLOAT): return GL_RGBA16F;
case FMT_CASE(RGBA, SIGNED_INT16): return GL_RGBA16I;
case FMT_CASE(RGBA, UNSIGNED_INT16): return GL_RGBA16UI;
case FMT_CASE(RGBA, UNORM_INT8): return GL_RGBA8;
case FMT_CASE(RGBA, SIGNED_INT8): return GL_RGBA8I;
case FMT_CASE(RGBA, UNSIGNED_INT8): return GL_RGBA8UI;
case FMT_CASE(sRGBA, UNORM_INT8): return GL_SRGB8_ALPHA8;
case FMT_CASE(RGBA, UNORM_INT_1010102_REV): return GL_RGB10_A2;
case FMT_CASE(RGBA, UNSIGNED_INT_1010102_REV): return GL_RGB10_A2UI;
case FMT_CASE(RGBA, SNORM_INT8): return GL_RGBA8_SNORM;
case FMT_CASE(RGB, UNORM_INT8): return GL_RGB8;
case FMT_CASE(RGB, UNSIGNED_INT_11F_11F_10F_REV): return GL_R11F_G11F_B10F;
case FMT_CASE(RGB, FLOAT): return GL_RGB32F;
case FMT_CASE(RGB, SIGNED_INT32): return GL_RGB32I;
case FMT_CASE(RGB, UNSIGNED_INT32): return GL_RGB32UI;
case FMT_CASE(RGB, UNORM_INT16): return GL_RGB16;
case FMT_CASE(RGB, SNORM_INT16): return GL_RGB16_SNORM;
case FMT_CASE(RGB, HALF_FLOAT): return GL_RGB16F;
case FMT_CASE(RGB, SIGNED_INT16): return GL_RGB16I;
case FMT_CASE(RGB, UNSIGNED_INT16): return GL_RGB16UI;
case FMT_CASE(RGB, SNORM_INT8): return GL_RGB8_SNORM;
case FMT_CASE(RGB, SIGNED_INT8): return GL_RGB8I;
case FMT_CASE(RGB, UNSIGNED_INT8): return GL_RGB8UI;
case FMT_CASE(sRGB, UNORM_INT8): return GL_SRGB8;
case FMT_CASE(RGB, UNSIGNED_INT_999_E5_REV): return GL_RGB9_E5;
case FMT_CASE(RGB, UNORM_INT_1010102_REV): return GL_RGB10;
case FMT_CASE(RG, FLOAT): return GL_RG32F;
case FMT_CASE(RG, SIGNED_INT32): return GL_RG32I;
case FMT_CASE(RG, UNSIGNED_INT32): return GL_RG32UI;
case FMT_CASE(RG, UNORM_INT16): return GL_RG16;
case FMT_CASE(RG, SNORM_INT16): return GL_RG16_SNORM;
case FMT_CASE(RG, HALF_FLOAT): return GL_RG16F;
case FMT_CASE(RG, SIGNED_INT16): return GL_RG16I;
case FMT_CASE(RG, UNSIGNED_INT16): return GL_RG16UI;
case FMT_CASE(RG, UNORM_INT8): return GL_RG8;
case FMT_CASE(RG, SIGNED_INT8): return GL_RG8I;
case FMT_CASE(RG, UNSIGNED_INT8): return GL_RG8UI;
case FMT_CASE(RG, SNORM_INT8): return GL_RG8_SNORM;
case FMT_CASE(sRG, UNORM_INT8): return GL_SRG8_EXT;
case FMT_CASE(R, FLOAT): return GL_R32F;
case FMT_CASE(R, SIGNED_INT32): return GL_R32I;
case FMT_CASE(R, UNSIGNED_INT32): return GL_R32UI;
case FMT_CASE(R, UNORM_INT16): return GL_R16;
case FMT_CASE(R, SNORM_INT16): return GL_R16_SNORM;
case FMT_CASE(R, HALF_FLOAT): return GL_R16F;
case FMT_CASE(R, SIGNED_INT16): return GL_R16I;
case FMT_CASE(R, UNSIGNED_INT16): return GL_R16UI;
case FMT_CASE(R, UNORM_INT8): return GL_R8;
case FMT_CASE(R, SIGNED_INT8): return GL_R8I;
case FMT_CASE(R, UNSIGNED_INT8): return GL_R8UI;
case FMT_CASE(R, SNORM_INT8): return GL_R8_SNORM;
case FMT_CASE(sR, UNORM_INT8): return GL_SR8_EXT;
case FMT_CASE(D, FLOAT): return GL_DEPTH_COMPONENT32F;
case FMT_CASE(D, UNSIGNED_INT_24_8): return GL_DEPTH_COMPONENT24;
case FMT_CASE(D, UNSIGNED_INT32): return GL_DEPTH_COMPONENT32;
case FMT_CASE(DS, FLOAT_UNSIGNED_INT_24_8_REV): return GL_DEPTH32F_STENCIL8;
case FMT_CASE(DS, UNSIGNED_INT_24_8): return GL_DEPTH24_STENCIL8;
default:
throw tcu::InternalError("Can't map texture format to GL internal format");
}
}
/*--------------------------------------------------------------------*//*!
* \brief Map generic compressed format to GL compressed format enum.
*
* Maps generic compressed format to GL compressed format enum value.
* If no mapping is found, throws tcu::InternalError.
*
* \param format Generic compressed format.
* \return GL compressed texture format.
*//*--------------------------------------------------------------------*/
deUint32 getGLFormat (tcu::CompressedTexFormat format)
{
switch (format)
{
case tcu::COMPRESSEDTEXFORMAT_ETC1_RGB8: return GL_ETC1_RGB8_OES;
case tcu::COMPRESSEDTEXFORMAT_EAC_R11: return GL_COMPRESSED_R11_EAC;
case tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_R11: return GL_COMPRESSED_SIGNED_R11_EAC;
case tcu::COMPRESSEDTEXFORMAT_EAC_RG11: return GL_COMPRESSED_RG11_EAC;
case tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_RG11: return GL_COMPRESSED_SIGNED_RG11_EAC;
case tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8: return GL_COMPRESSED_RGB8_ETC2;
case tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8: return GL_COMPRESSED_SRGB8_ETC2;
case tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1: return GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2;
case tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: return GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2;
case tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_RGBA8: return GL_COMPRESSED_RGBA8_ETC2_EAC;
case tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC;
case tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_RGBA: return GL_COMPRESSED_RGBA_ASTC_4x4_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_RGBA: return GL_COMPRESSED_RGBA_ASTC_5x4_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_5x5_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_6x5_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_RGBA: return GL_COMPRESSED_RGBA_ASTC_6x6_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_8x5_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_RGBA: return GL_COMPRESSED_RGBA_ASTC_8x6_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_RGBA: return GL_COMPRESSED_RGBA_ASTC_8x8_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x5_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x6_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x8_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x10_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_RGBA: return GL_COMPRESSED_RGBA_ASTC_12x10_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_RGBA: return GL_COMPRESSED_RGBA_ASTC_12x12_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR;
case tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR;
default:
throw tcu::InternalError("Can't map compressed format to GL format");
}
}
/*--------------------------------------------------------------------*//*!
* \brief Map compressed GL format to generic compressed format.
*
* Maps compressed GL format to generic compressed format.
* If no mapping is found, throws tcu::InternalError.
*
* \param GL compressed texture format.
* \return format Generic compressed format.
*//*--------------------------------------------------------------------*/
tcu::CompressedTexFormat mapGLCompressedTexFormat (deUint32 format)
{
switch (format)
{
case GL_ETC1_RGB8_OES: return tcu::COMPRESSEDTEXFORMAT_ETC1_RGB8;
case GL_COMPRESSED_R11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_R11;
case GL_COMPRESSED_SIGNED_R11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_R11;
case GL_COMPRESSED_RG11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_RG11;
case GL_COMPRESSED_SIGNED_RG11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_RG11;
case GL_COMPRESSED_RGB8_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8;
case GL_COMPRESSED_SRGB8_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8;
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1;
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1;
case GL_COMPRESSED_RGBA8_ETC2_EAC: return tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_RGBA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: return tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_SRGB8_ALPHA8;
case GL_COMPRESSED_RGBA_ASTC_4x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_RGBA;
case GL_COMPRESSED_RGBA_ASTC_5x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_RGBA;
case GL_COMPRESSED_RGBA_ASTC_5x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_RGBA;
case GL_COMPRESSED_RGBA_ASTC_6x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_RGBA;
case GL_COMPRESSED_RGBA_ASTC_6x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_RGBA;
case GL_COMPRESSED_RGBA_ASTC_8x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_RGBA;
case GL_COMPRESSED_RGBA_ASTC_8x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_RGBA;
case GL_COMPRESSED_RGBA_ASTC_8x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_RGBA;
case GL_COMPRESSED_RGBA_ASTC_10x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_RGBA;
case GL_COMPRESSED_RGBA_ASTC_10x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_RGBA;
case GL_COMPRESSED_RGBA_ASTC_10x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_RGBA;
case GL_COMPRESSED_RGBA_ASTC_10x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_RGBA;
case GL_COMPRESSED_RGBA_ASTC_12x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_RGBA;
case GL_COMPRESSED_RGBA_ASTC_12x12_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_RGBA;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_SRGB8_ALPHA8;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_SRGB8_ALPHA8;
default:
throw tcu::InternalError("Can't map compressed GL format to compressed format");
}
}
bool isCompressedFormat (deUint32 internalFormat)
{
switch (internalFormat)
{
case GL_ETC1_RGB8_OES:
case GL_COMPRESSED_R11_EAC:
case GL_COMPRESSED_SIGNED_R11_EAC:
case GL_COMPRESSED_RG11_EAC:
case GL_COMPRESSED_SIGNED_RG11_EAC:
case GL_COMPRESSED_RGB8_ETC2:
case GL_COMPRESSED_SRGB8_ETC2:
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
case GL_COMPRESSED_RGBA8_ETC2_EAC:
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
case GL_COMPRESSED_RGBA_ASTC_4x4_KHR:
case GL_COMPRESSED_RGBA_ASTC_5x4_KHR:
case GL_COMPRESSED_RGBA_ASTC_5x5_KHR:
case GL_COMPRESSED_RGBA_ASTC_6x5_KHR:
case GL_COMPRESSED_RGBA_ASTC_6x6_KHR:
case GL_COMPRESSED_RGBA_ASTC_8x5_KHR:
case GL_COMPRESSED_RGBA_ASTC_8x6_KHR:
case GL_COMPRESSED_RGBA_ASTC_8x8_KHR:
case GL_COMPRESSED_RGBA_ASTC_10x5_KHR:
case GL_COMPRESSED_RGBA_ASTC_10x6_KHR:
case GL_COMPRESSED_RGBA_ASTC_10x8_KHR:
case GL_COMPRESSED_RGBA_ASTC_10x10_KHR:
case GL_COMPRESSED_RGBA_ASTC_12x10_KHR:
case GL_COMPRESSED_RGBA_ASTC_12x12_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
return true;
default:
return false;
}
}
static tcu::TextureFormat::ChannelType mapGLChannelType (deUint32 dataType, bool normalized)
{
// \note Normalized bit is ignored where it doesn't apply.
using tcu::TextureFormat;
switch (dataType)
{
case GL_UNSIGNED_BYTE: return normalized ? TextureFormat::UNORM_INT8 : TextureFormat::UNSIGNED_INT8;
case GL_BYTE: return normalized ? TextureFormat::SNORM_INT8 : TextureFormat::SIGNED_INT8;
case GL_UNSIGNED_SHORT: return normalized ? TextureFormat::UNORM_INT16 : TextureFormat::UNSIGNED_INT16;
case GL_SHORT: return normalized ? TextureFormat::SNORM_INT16 : TextureFormat::SIGNED_INT16;
case GL_UNSIGNED_INT: return normalized ? TextureFormat::UNORM_INT32 : TextureFormat::UNSIGNED_INT32;
case GL_INT: return normalized ? TextureFormat::SNORM_INT32 : TextureFormat::SIGNED_INT32;
case GL_FLOAT: return TextureFormat::FLOAT;
case GL_UNSIGNED_SHORT_4_4_4_4: return TextureFormat::UNORM_SHORT_4444;
case GL_UNSIGNED_SHORT_5_5_5_1: return TextureFormat::UNORM_SHORT_5551;
case GL_UNSIGNED_SHORT_5_6_5: return TextureFormat::UNORM_SHORT_565;
case GL_HALF_FLOAT: return TextureFormat::HALF_FLOAT;
case GL_UNSIGNED_INT_2_10_10_10_REV: return normalized ? TextureFormat::UNORM_INT_1010102_REV : TextureFormat::UNSIGNED_INT_1010102_REV;
case GL_UNSIGNED_INT_10F_11F_11F_REV: return TextureFormat::UNSIGNED_INT_11F_11F_10F_REV;
case GL_UNSIGNED_INT_24_8: return TextureFormat::UNSIGNED_INT_24_8;
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: return TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV;
case GL_UNSIGNED_INT_5_9_9_9_REV: return TextureFormat::UNSIGNED_INT_999_E5_REV;
default:
DE_ASSERT(false);
return TextureFormat::CHANNELTYPE_LAST;
}
}
/*--------------------------------------------------------------------*//*!
* \brief Map GL pixel transfer format to tcu::TextureFormat.
*
* If no mapping is found, throws tcu::InternalError.
*
* \param format GL pixel format.
* \param dataType GL data type.
* \return Generic texture format.
*//*--------------------------------------------------------------------*/
tcu::TextureFormat mapGLTransferFormat (deUint32 format, deUint32 dataType)
{
using tcu::TextureFormat;
switch (format)
{
case GL_ALPHA: return TextureFormat(TextureFormat::A, mapGLChannelType(dataType, true));
case GL_LUMINANCE: return TextureFormat(TextureFormat::L, mapGLChannelType(dataType, true));
case GL_LUMINANCE_ALPHA: return TextureFormat(TextureFormat::LA, mapGLChannelType(dataType, true));
case GL_RGB: return TextureFormat(TextureFormat::RGB, mapGLChannelType(dataType, true));
case GL_RGBA: return TextureFormat(TextureFormat::RGBA, mapGLChannelType(dataType, true));
case GL_BGRA: return TextureFormat(TextureFormat::BGRA, mapGLChannelType(dataType, true));
case GL_RG: return TextureFormat(TextureFormat::RG, mapGLChannelType(dataType, true));
case GL_RED: return TextureFormat(TextureFormat::R, mapGLChannelType(dataType, true));
case GL_RGBA_INTEGER: return TextureFormat(TextureFormat::RGBA, mapGLChannelType(dataType, false));
case GL_RGB_INTEGER: return TextureFormat(TextureFormat::RGB, mapGLChannelType(dataType, false));
case GL_RG_INTEGER: return TextureFormat(TextureFormat::RG, mapGLChannelType(dataType, false));
case GL_RED_INTEGER: return TextureFormat(TextureFormat::R, mapGLChannelType(dataType, false));
case GL_DEPTH_COMPONENT: return TextureFormat(TextureFormat::D, mapGLChannelType(dataType, true));
case GL_DEPTH_STENCIL: return TextureFormat(TextureFormat::DS, mapGLChannelType(dataType, true));
default:
throw tcu::InternalError(string("Can't map GL pixel format (") + tcu::toHex(format).toString() + ", " + tcu::toHex(dataType).toString() + ") to texture format");
}
}
/*--------------------------------------------------------------------*//*!
* \brief Map GL internal texture format to tcu::TextureFormat.
*
* If no mapping is found, throws tcu::InternalError.
*
* \param internalFormat Sized internal format.
* \return Generic texture format.
*//*--------------------------------------------------------------------*/
tcu::TextureFormat mapGLInternalFormat (deUint32 internalFormat)
{
using tcu::TextureFormat;
switch (internalFormat)
{
case GL_RGB5_A1: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_SHORT_5551);
case GL_RGBA4: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_SHORT_4444);
case GL_RGB565: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_SHORT_565);
case GL_DEPTH_COMPONENT16: return TextureFormat(TextureFormat::D, TextureFormat::UNORM_INT16);
case GL_STENCIL_INDEX8: return TextureFormat(TextureFormat::S, TextureFormat::UNSIGNED_INT8);
case GL_RGBA32F: return TextureFormat(TextureFormat::RGBA, TextureFormat::FLOAT);
case GL_RGBA32I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT32);
case GL_RGBA32UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT32);
case GL_RGBA16: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT16);
case GL_RGBA16_SNORM: return TextureFormat(TextureFormat::RGBA, TextureFormat::SNORM_INT16);
case GL_RGBA16F: return TextureFormat(TextureFormat::RGBA, TextureFormat::HALF_FLOAT);
case GL_RGBA16I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT16);
case GL_RGBA16UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT16);
case GL_RGBA8: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8);
case GL_RGBA8I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT8);
case GL_RGBA8UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT8);
case GL_SRGB8_ALPHA8: return TextureFormat(TextureFormat::sRGBA, TextureFormat::UNORM_INT8);
case GL_RGB10_A2: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT_1010102_REV);
case GL_RGB10_A2UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT_1010102_REV);
case GL_RGBA8_SNORM: return TextureFormat(TextureFormat::RGBA, TextureFormat::SNORM_INT8);
case GL_RGB8: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT8);
case GL_R11F_G11F_B10F: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT_11F_11F_10F_REV);
case GL_RGB32F: return TextureFormat(TextureFormat::RGB, TextureFormat::FLOAT);
case GL_RGB32I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT32);
case GL_RGB32UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT32);
case GL_RGB16: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT16);
case GL_RGB16_SNORM: return TextureFormat(TextureFormat::RGB, TextureFormat::SNORM_INT16);
case GL_RGB16F: return TextureFormat(TextureFormat::RGB, TextureFormat::HALF_FLOAT);
case GL_RGB16I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT16);
case GL_RGB16UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT16);
case GL_RGB8_SNORM: return TextureFormat(TextureFormat::RGB, TextureFormat::SNORM_INT8);
case GL_RGB8I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT8);
case GL_RGB8UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT8);
case GL_SRGB8: return TextureFormat(TextureFormat::sRGB, TextureFormat::UNORM_INT8);
case GL_RGB9_E5: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT_999_E5_REV);
case GL_RGB10: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT_1010102_REV);
case GL_RG32F: return TextureFormat(TextureFormat::RG, TextureFormat::FLOAT);
case GL_RG32I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT32);
case GL_RG32UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT32);
case GL_RG16: return TextureFormat(TextureFormat::RG, TextureFormat::UNORM_INT16);
case GL_RG16_SNORM: return TextureFormat(TextureFormat::RG, TextureFormat::SNORM_INT16);
case GL_RG16F: return TextureFormat(TextureFormat::RG, TextureFormat::HALF_FLOAT);
case GL_RG16I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT16);
case GL_RG16UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT16);
case GL_RG8: return TextureFormat(TextureFormat::RG, TextureFormat::UNORM_INT8);
case GL_RG8I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT8);
case GL_RG8UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT8);
case GL_RG8_SNORM: return TextureFormat(TextureFormat::RG, TextureFormat::SNORM_INT8);
case GL_SRG8_EXT: return TextureFormat(TextureFormat::sRG, TextureFormat::UNORM_INT8);
case GL_R32F: return TextureFormat(TextureFormat::R, TextureFormat::FLOAT);
case GL_R32I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT32);
case GL_R32UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT32);
case GL_R16: return TextureFormat(TextureFormat::R, TextureFormat::UNORM_INT16);
case GL_R16_SNORM: return TextureFormat(TextureFormat::R, TextureFormat::SNORM_INT16);
case GL_R16F: return TextureFormat(TextureFormat::R, TextureFormat::HALF_FLOAT);
case GL_R16I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT16);
case GL_R16UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT16);
case GL_R8: return TextureFormat(TextureFormat::R, TextureFormat::UNORM_INT8);
case GL_R8I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT8);
case GL_R8UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT8);
case GL_R8_SNORM: return TextureFormat(TextureFormat::R, TextureFormat::SNORM_INT8);
case GL_SR8_EXT: return TextureFormat(TextureFormat::sR, TextureFormat::UNORM_INT8);
case GL_DEPTH_COMPONENT32F: return TextureFormat(TextureFormat::D, TextureFormat::FLOAT);
case GL_DEPTH_COMPONENT24: return TextureFormat(TextureFormat::D, TextureFormat::UNSIGNED_INT_24_8);
case GL_DEPTH_COMPONENT32: return TextureFormat(TextureFormat::D, TextureFormat::UNSIGNED_INT32);
case GL_DEPTH32F_STENCIL8: return TextureFormat(TextureFormat::DS, TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV);
case GL_DEPTH24_STENCIL8: return TextureFormat(TextureFormat::DS, TextureFormat::UNSIGNED_INT_24_8);
default:
throw tcu::InternalError(string("Can't map GL sized internal format (") + tcu::toHex(internalFormat).toString() + ") to texture format");
}
}
bool isGLInternalColorFormatFilterable (deUint32 format)
{
switch (format)
{
case GL_R8:
case GL_R8_SNORM:
case GL_RG8:
case GL_RG8_SNORM:
case GL_RGB8:
case GL_RGB8_SNORM:
case GL_RGB565:
case GL_RGBA4:
case GL_RGB5_A1:
case GL_RGBA8:
case GL_RGBA8_SNORM:
case GL_RGB10_A2:
case GL_SR8_EXT:
case GL_SRG8_EXT:
case GL_SRGB8:
case GL_SRGB8_ALPHA8:
case GL_R16F:
case GL_RG16F:
case GL_RGB16F:
case GL_RGBA16F:
case GL_R11F_G11F_B10F:
case GL_RGB9_E5:
return true;
case GL_RGB10_A2UI:
case GL_R32F:
case GL_RG32F:
case GL_RGB32F:
case GL_RGBA32F:
case GL_R8I:
case GL_R8UI:
case GL_R16I:
case GL_R16UI:
case GL_R32I:
case GL_R32UI:
case GL_RG8I:
case GL_RG8UI:
case GL_RG16I:
case GL_RG16UI:
case GL_RG32I:
case GL_RG32UI:
case GL_RGB8I:
case GL_RGB8UI:
case GL_RGB16I:
case GL_RGB16UI:
case GL_RGB32I:
case GL_RGB32UI:
case GL_RGBA8I:
case GL_RGBA8UI:
case GL_RGBA16I:
case GL_RGBA16UI:
case GL_RGBA32I:
case GL_RGBA32UI:
return false;
default:
DE_ASSERT(false);
return false;
}
}
static inline tcu::Sampler::WrapMode mapGLWrapMode (deUint32 wrapMode)
{
switch (wrapMode)
{
case GL_CLAMP_TO_EDGE: return tcu::Sampler::CLAMP_TO_EDGE;
case GL_CLAMP_TO_BORDER: return tcu::Sampler::CLAMP_TO_BORDER;
case GL_REPEAT: return tcu::Sampler::REPEAT_GL;
case GL_MIRRORED_REPEAT: return tcu::Sampler::MIRRORED_REPEAT_GL;
default:
throw tcu::InternalError("Can't map GL wrap mode " + tcu::toHex(wrapMode).toString());
}
}
static inline tcu::Sampler::FilterMode mapGLMinFilterMode (deUint32 filterMode)
{
switch (filterMode)
{
case GL_NEAREST: return tcu::Sampler::NEAREST;
case GL_LINEAR: return tcu::Sampler::LINEAR;
case GL_NEAREST_MIPMAP_NEAREST: return tcu::Sampler::NEAREST_MIPMAP_NEAREST;
case GL_NEAREST_MIPMAP_LINEAR: return tcu::Sampler::NEAREST_MIPMAP_LINEAR;
case GL_LINEAR_MIPMAP_NEAREST: return tcu::Sampler::LINEAR_MIPMAP_NEAREST;
case GL_LINEAR_MIPMAP_LINEAR: return tcu::Sampler::LINEAR_MIPMAP_LINEAR;
default:
throw tcu::InternalError("Can't map GL min filter mode" + tcu::toHex(filterMode).toString());
}
}
static inline tcu::Sampler::FilterMode mapGLMagFilterMode (deUint32 filterMode)
{
switch (filterMode)
{
case GL_NEAREST: return tcu::Sampler::NEAREST;
case GL_LINEAR: return tcu::Sampler::LINEAR;
default:
throw tcu::InternalError("Can't map GL mag filter mode" + tcu::toHex(filterMode).toString());
}
}
/*--------------------------------------------------------------------*//*!
* \brief Map GL sampler parameters to tcu::Sampler.
*
* If no mapping is found, throws tcu::InternalError.
*
* \param wrapS S-component wrap mode
* \param minFilter Minification filter mode
* \param magFilter Magnification filter mode
* \return Sampler description.
*//*--------------------------------------------------------------------*/
tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 minFilter, deUint32 magFilter)
{
return mapGLSampler(wrapS, wrapS, wrapS, minFilter, magFilter);
}
/*--------------------------------------------------------------------*//*!
* \brief Map GL sampler parameters to tcu::Sampler.
*
* If no mapping is found, throws tcu::InternalError.
*
* \param wrapS S-component wrap mode
* \param wrapT T-component wrap mode
* \param minFilter Minification filter mode
* \param magFilter Magnification filter mode
* \return Sampler description.
*//*--------------------------------------------------------------------*/
tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 wrapT, deUint32 minFilter, deUint32 magFilter)
{
return mapGLSampler(wrapS, wrapT, wrapS, minFilter, magFilter);
}
/*--------------------------------------------------------------------*//*!
* \brief Map GL sampler parameters to tcu::Sampler.
*
* If no mapping is found, throws tcu::InternalError.
*
* \param wrapS S-component wrap mode
* \param wrapT T-component wrap mode
* \param wrapR R-component wrap mode
* \param minFilter Minification filter mode
* \param magFilter Magnification filter mode
* \return Sampler description.
*//*--------------------------------------------------------------------*/
tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 wrapT, deUint32 wrapR, deUint32 minFilter, deUint32 magFilter)
{
return tcu::Sampler(mapGLWrapMode(wrapS), mapGLWrapMode(wrapT), mapGLWrapMode(wrapR),
mapGLMinFilterMode(minFilter), mapGLMagFilterMode(magFilter),
0.0f /* lod threshold */,
true /* normalized coords */,
tcu::Sampler::COMPAREMODE_NONE /* no compare */,
0 /* compare channel */,
tcu::Vec4(0.0f) /* border color, not used */);
}
/*--------------------------------------------------------------------*//*!
* \brief Map GL compare function to tcu::Sampler::CompareMode.
*
* If no mapping is found, throws tcu::InternalError.
*
* \param mode GL compare mode
* \return Compare mode
*//*--------------------------------------------------------------------*/
tcu::Sampler::CompareMode mapGLCompareFunc (deUint32 mode)
{
switch (mode)
{
case GL_LESS: return tcu::Sampler::COMPAREMODE_LESS;
case GL_LEQUAL: return tcu::Sampler::COMPAREMODE_LESS_OR_EQUAL;
case GL_GREATER: return tcu::Sampler::COMPAREMODE_GREATER;
case GL_GEQUAL: return tcu::Sampler::COMPAREMODE_GREATER_OR_EQUAL;
case GL_EQUAL: return tcu::Sampler::COMPAREMODE_EQUAL;
case GL_NOTEQUAL: return tcu::Sampler::COMPAREMODE_NOT_EQUAL;
case GL_ALWAYS: return tcu::Sampler::COMPAREMODE_ALWAYS;
case GL_NEVER: return tcu::Sampler::COMPAREMODE_NEVER;
default:
throw tcu::InternalError("Can't map GL compare mode " + tcu::toHex(mode).toString());
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get GL wrap mode.
*
* If no mapping is found, throws tcu::InternalError.
*
* \param wrapMode Wrap mode
* \return GL wrap mode
*//*--------------------------------------------------------------------*/
deUint32 getGLWrapMode (tcu::Sampler::WrapMode wrapMode)
{
DE_ASSERT(wrapMode != tcu::Sampler::WRAPMODE_LAST);
switch (wrapMode)
{
case tcu::Sampler::CLAMP_TO_EDGE: return GL_CLAMP_TO_EDGE;
case tcu::Sampler::CLAMP_TO_BORDER: return GL_CLAMP_TO_BORDER;
case tcu::Sampler::REPEAT_GL: return GL_REPEAT;
case tcu::Sampler::MIRRORED_REPEAT_GL: return GL_MIRRORED_REPEAT;
default:
throw tcu::InternalError("Can't map wrap mode");
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get GL filter mode.
*
* If no mapping is found, throws tcu::InternalError.
*
* \param filterMode Filter mode
* \return GL filter mode
*//*--------------------------------------------------------------------*/
deUint32 getGLFilterMode (tcu::Sampler::FilterMode filterMode)
{
DE_ASSERT(filterMode != tcu::Sampler::FILTERMODE_LAST);
switch (filterMode)
{
case tcu::Sampler::NEAREST: return GL_NEAREST;
case tcu::Sampler::LINEAR: return GL_LINEAR;
case tcu::Sampler::NEAREST_MIPMAP_NEAREST: return GL_NEAREST_MIPMAP_NEAREST;
case tcu::Sampler::NEAREST_MIPMAP_LINEAR: return GL_NEAREST_MIPMAP_LINEAR;
case tcu::Sampler::LINEAR_MIPMAP_NEAREST: return GL_LINEAR_MIPMAP_NEAREST;
case tcu::Sampler::LINEAR_MIPMAP_LINEAR: return GL_LINEAR_MIPMAP_LINEAR;
default:
throw tcu::InternalError("Can't map filter mode");
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get GL compare mode.
*
* If no mapping is found, throws tcu::InternalError.
*
* \param compareMode Compare mode
* \return GL compare mode
*//*--------------------------------------------------------------------*/
deUint32 getGLCompareFunc (tcu::Sampler::CompareMode compareMode)
{
DE_ASSERT(compareMode != tcu::Sampler::COMPAREMODE_NONE);
switch (compareMode)
{
case tcu::Sampler::COMPAREMODE_NONE: return GL_NONE;
case tcu::Sampler::COMPAREMODE_LESS: return GL_LESS;
case tcu::Sampler::COMPAREMODE_LESS_OR_EQUAL: return GL_LEQUAL;
case tcu::Sampler::COMPAREMODE_GREATER: return GL_GREATER;
case tcu::Sampler::COMPAREMODE_GREATER_OR_EQUAL: return GL_GEQUAL;
case tcu::Sampler::COMPAREMODE_EQUAL: return GL_EQUAL;
case tcu::Sampler::COMPAREMODE_NOT_EQUAL: return GL_NOTEQUAL;
case tcu::Sampler::COMPAREMODE_ALWAYS: return GL_ALWAYS;
case tcu::Sampler::COMPAREMODE_NEVER: return GL_NEVER;
default:
throw tcu::InternalError("Can't map compare mode");
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get GL cube face.
*
* If no mapping is found, throws tcu::InternalError.
*
* \param face Cube face
* \return GL cube face
*//*--------------------------------------------------------------------*/
deUint32 getGLCubeFace (tcu::CubeFace face)
{
DE_ASSERT(face != tcu::CUBEFACE_LAST);
switch (face)
{
case tcu::CUBEFACE_NEGATIVE_X: return GL_TEXTURE_CUBE_MAP_NEGATIVE_X;
case tcu::CUBEFACE_POSITIVE_X: return GL_TEXTURE_CUBE_MAP_POSITIVE_X;
case tcu::CUBEFACE_NEGATIVE_Y: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Y;
case tcu::CUBEFACE_POSITIVE_Y: return GL_TEXTURE_CUBE_MAP_POSITIVE_Y;
case tcu::CUBEFACE_NEGATIVE_Z: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
case tcu::CUBEFACE_POSITIVE_Z: return GL_TEXTURE_CUBE_MAP_POSITIVE_Z;
default:
throw tcu::InternalError("Can't map cube face");
}
}
tcu::CubeFace getCubeFaceFromGL (deUint32 face)
{
switch (face)
{
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: return tcu::CUBEFACE_NEGATIVE_X;
case GL_TEXTURE_CUBE_MAP_POSITIVE_X: return tcu::CUBEFACE_POSITIVE_X;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: return tcu::CUBEFACE_NEGATIVE_Y;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: return tcu::CUBEFACE_POSITIVE_Y;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: return tcu::CUBEFACE_NEGATIVE_Z;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: return tcu::CUBEFACE_POSITIVE_Z;
default:
throw tcu::InternalError("Can't map cube face");
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get GLSL sampler type for texture format.
*
* If no mapping is found, glu::TYPE_LAST is returned.
*
* \param format Texture format
* \return GLSL 1D sampler type for format
*//*--------------------------------------------------------------------*/
DataType getSampler1DType (tcu::TextureFormat format)
{
using tcu::TextureFormat;
if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
return TYPE_SAMPLER_1D;
if (format.order == TextureFormat::S)
return TYPE_LAST;
switch (tcu::getTextureChannelClass(format.type))
{
case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
return glu::TYPE_SAMPLER_1D;
case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
return glu::TYPE_INT_SAMPLER_1D;
case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
return glu::TYPE_UINT_SAMPLER_1D;
default:
return glu::TYPE_LAST;
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get GLSL sampler type for texture format.
*
* If no mapping is found, glu::TYPE_LAST is returned.
*
* \param format Texture format
* \return GLSL 2D sampler type for format
*//*--------------------------------------------------------------------*/
DataType getSampler2DType (tcu::TextureFormat format)
{
using tcu::TextureFormat;
if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
return TYPE_SAMPLER_2D;
if (format.order == TextureFormat::S)
return TYPE_LAST;
switch (tcu::getTextureChannelClass(format.type))
{
case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
return glu::TYPE_SAMPLER_2D;
case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
return glu::TYPE_INT_SAMPLER_2D;
case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
return glu::TYPE_UINT_SAMPLER_2D;
default:
return glu::TYPE_LAST;
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get GLSL sampler type for texture format.
*
* If no mapping is found, glu::TYPE_LAST is returned.
*
* \param format Texture format
* \return GLSL cube map sampler type for format
*//*--------------------------------------------------------------------*/
DataType getSamplerCubeType (tcu::TextureFormat format)
{
using tcu::TextureFormat;
if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
return TYPE_SAMPLER_CUBE;
if (format.order == TextureFormat::S)
return TYPE_LAST;
switch (tcu::getTextureChannelClass(format.type))
{
case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
return glu::TYPE_SAMPLER_CUBE;
case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
return glu::TYPE_INT_SAMPLER_CUBE;
case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
return glu::TYPE_UINT_SAMPLER_CUBE;
default:
return glu::TYPE_LAST;
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get GLSL sampler type for texture format.
*
* If no mapping is found, glu::TYPE_LAST is returned.
*
* \param format Texture format
* \return GLSL 2D array sampler type for format
*//*--------------------------------------------------------------------*/
DataType getSampler2DArrayType (tcu::TextureFormat format)
{
using tcu::TextureFormat;
if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
return TYPE_SAMPLER_2D_ARRAY;
if (format.order == TextureFormat::S)
return TYPE_LAST;
switch (tcu::getTextureChannelClass(format.type))
{
case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
return glu::TYPE_SAMPLER_2D_ARRAY;
case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
return glu::TYPE_INT_SAMPLER_2D_ARRAY;
case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
return glu::TYPE_UINT_SAMPLER_2D_ARRAY;
default:
return glu::TYPE_LAST;
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get GLSL sampler type for texture format.
*
* If no mapping is found, glu::TYPE_LAST is returned.
*
* \param format Texture format
* \return GLSL 3D sampler type for format
*//*--------------------------------------------------------------------*/
DataType getSampler3DType (tcu::TextureFormat format)
{
using tcu::TextureFormat;
if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
return TYPE_SAMPLER_3D;
if (format.order == TextureFormat::S)
return TYPE_LAST;
switch (tcu::getTextureChannelClass(format.type))
{
case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
return glu::TYPE_SAMPLER_3D;
case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
return glu::TYPE_INT_SAMPLER_3D;
case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
return glu::TYPE_UINT_SAMPLER_3D;
default:
return glu::TYPE_LAST;
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get GLSL sampler type for texture format.
*
* If no mapping is found, glu::TYPE_LAST is returned.
*
* \param format Texture format
* \return GLSL cube map array sampler type for format
*//*--------------------------------------------------------------------*/
DataType getSamplerCubeArrayType (tcu::TextureFormat format)
{
using tcu::TextureFormat;
if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
return TYPE_SAMPLER_CUBE_ARRAY;
if (format.order == TextureFormat::S)
return TYPE_LAST;
switch (tcu::getTextureChannelClass(format.type))
{
case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
return glu::TYPE_SAMPLER_CUBE_ARRAY;
case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
return glu::TYPE_INT_SAMPLER_CUBE_ARRAY;
case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
return glu::TYPE_UINT_SAMPLER_CUBE_ARRAY;
default:
return glu::TYPE_LAST;
}
}
enum RenderableType
{
RENDERABLE_COLOR = (1<<0),
RENDERABLE_DEPTH = (1<<1),
RENDERABLE_STENCIL = (1<<2)
};
static deUint32 getRenderableBitsES3 (const ContextInfo& contextInfo, deUint32 internalFormat)
{
switch (internalFormat)
{
// Color-renderable formats
case GL_RGBA32I:
case GL_RGBA32UI:
case GL_RGBA16I:
case GL_RGBA16UI:
case GL_RGBA8:
case GL_RGBA8I:
case GL_RGBA8UI:
case GL_SRGB8_ALPHA8:
case GL_RGB10_A2:
case GL_RGB10_A2UI:
case GL_RGBA4:
case GL_RGB5_A1:
case GL_RGB8:
case GL_RGB565:
case GL_RG32I:
case GL_RG32UI:
case GL_RG16I:
case GL_RG16UI:
case GL_RG8:
case GL_RG8I:
case GL_RG8UI:
case GL_R32I:
case GL_R32UI:
case GL_R16I:
case GL_R16UI:
case GL_R8:
case GL_R8I:
case GL_R8UI:
return RENDERABLE_COLOR;
// GL_EXT_color_buffer_float
case GL_RGBA32F:
case GL_R11F_G11F_B10F:
case GL_RG32F:
case GL_R32F:
if (contextInfo.isExtensionSupported("GL_EXT_color_buffer_float"))
return RENDERABLE_COLOR;
else
return 0;
// GL_EXT_color_buffer_float / GL_EXT_color_buffer_half_float
case GL_RGBA16F:
case GL_RG16F:
case GL_R16F:
if (contextInfo.isExtensionSupported("GL_EXT_color_buffer_float") ||
contextInfo.isExtensionSupported("GL_EXT_color_buffer_half_float"))
return RENDERABLE_COLOR;
else
return 0;
// Depth formats
case GL_DEPTH_COMPONENT32F:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT16:
return RENDERABLE_DEPTH;
// Depth+stencil formats
case GL_DEPTH32F_STENCIL8:
case GL_DEPTH24_STENCIL8:
return RENDERABLE_DEPTH|RENDERABLE_STENCIL;
// Stencil formats
case GL_STENCIL_INDEX8:
return RENDERABLE_STENCIL;
default:
return 0;
}
}
/*--------------------------------------------------------------------*//*!
* \brief Check if sized internal format is color-renderable.
* \note Works currently only on ES3 context.
*//*--------------------------------------------------------------------*/
bool isSizedFormatColorRenderable (const RenderContext& renderCtx, const ContextInfo& contextInfo, deUint32 sizedFormat)
{
deUint32 renderable = 0;
if (renderCtx.getType().getAPI() == ApiType::es(3,0))
renderable = getRenderableBitsES3(contextInfo, sizedFormat);
else
throw tcu::InternalError("Context type not supported in query");
return (renderable & RENDERABLE_COLOR) != 0;
}
const tcu::IVec2 (&getDefaultGatherOffsets (void))[4]
{
static const tcu::IVec2 s_defaultOffsets[4] =
{
tcu::IVec2(0, 1),
tcu::IVec2(1, 1),
tcu::IVec2(1, 0),
tcu::IVec2(0, 0),
};
return s_defaultOffsets;
}
} // glu