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468 lines
15 KiB
468 lines
15 KiB
/* |
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 |
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Vladimír Vondruš <mosra@centrum.cz> |
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Permission is hereby granted, free of charge, to any person obtaining a |
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copy of this software and associated documentation files (the "Software"), |
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to deal in the Software without restriction, including without limitation |
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the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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and/or sell copies of the Software, and to permit persons to whom the |
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Software is furnished to do so, subject to the following conditions: |
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The above copyright notice and this permission notice shall be included |
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in all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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DEALINGS IN THE SOFTWARE. |
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*/ |
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#include "PixelFormat.h" |
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#include <Corrade/Utility/Assert.h> |
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#include <Corrade/Containers/ArrayView.h> |
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#include <Corrade/Utility/Debug.h> |
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#include "Magnum/PixelFormat.h" |
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namespace Magnum { namespace GL { |
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namespace { |
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#ifndef DOXYGEN_GENERATING_OUTPUT /* It gets *really* confused */ |
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constexpr struct { |
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PixelFormat format; |
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PixelType type; |
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} FormatMapping[] { |
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#define _c(input, format, type) {PixelFormat::format, PixelType::type}, |
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#define _s(input) {PixelFormat{}, PixelType{}}, |
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#include "Magnum/GL/Implementation/pixelFormatMapping.hpp" |
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#undef _s |
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#undef _c |
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}; |
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#endif |
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} |
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bool hasPixelFormat(const Magnum::PixelFormat format) { |
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if(isPixelFormatImplementationSpecific(format)) |
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return true; |
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#if defined(MAGNUM_BUILD_DEPRECATED) && defined(MAGNUM_TARGET_GL) |
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/* See GL/Test/PixelFormatTest.cpp for more information. Returning true |
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unconditionally here as unsupported enum values shouldn't even be |
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compiled. */ |
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if(UnsignedInt(format) > 0x1000) return true; |
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#endif |
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CORRADE_ASSERT(UnsignedInt(format) < Containers::arraySize(FormatMapping), |
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"GL::hasPixelFormat(): invalid format" << format, {}); |
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return UnsignedInt(FormatMapping[UnsignedInt(format)].format); |
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} |
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PixelFormat pixelFormat(const Magnum::PixelFormat format) { |
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if(isPixelFormatImplementationSpecific(format)) |
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return pixelFormatUnwrap<GL::PixelFormat>(format); |
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#if defined(MAGNUM_BUILD_DEPRECATED) && defined(MAGNUM_TARGET_GL) |
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/* See GL/Test/PixelFormatTest.cpp for more information */ |
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if(UnsignedInt(format) > 0x1000) |
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return PixelFormat(UnsignedInt(format)); |
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#endif |
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CORRADE_ASSERT(UnsignedInt(format) < Containers::arraySize(FormatMapping), |
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"GL::pixelFormat(): invalid format" << format, {}); |
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const PixelFormat out = FormatMapping[UnsignedInt(format)].format; |
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CORRADE_ASSERT(UnsignedInt(out), |
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"GL::pixelFormat(): format" << format << "is not supported on this target", {}); |
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return out; |
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} |
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PixelType pixelType(const Magnum::PixelFormat format, const UnsignedInt extra) { |
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if(isPixelFormatImplementationSpecific(format) |
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#if defined(MAGNUM_BUILD_DEPRECATED) && defined(MAGNUM_TARGET_GL) |
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/* See GL/Test/PixelFormatTest.cpp for more information */ |
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|| UnsignedInt(format) > 0x1000 |
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#endif |
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) { |
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CORRADE_ASSERT(extra, |
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"GL::pixelType(): format is implementation-specific, but no additional type specifier was passed", {}); |
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return PixelType(extra); |
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} |
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CORRADE_ASSERT(UnsignedInt(format) < Containers::arraySize(FormatMapping), |
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"GL::pixelType(): invalid format" << format, {}); |
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const PixelType out = FormatMapping[UnsignedInt(format)].type; |
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CORRADE_ASSERT(UnsignedInt(out), |
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"GL::pixelType(): format" << format << "is not supported on this target", {}); |
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return out; |
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} |
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UnsignedInt pixelSize(const PixelFormat format, const PixelType type) { |
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std::size_t size = 0; |
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switch(type) { |
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case PixelType::UnsignedByte: |
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#ifndef MAGNUM_TARGET_GLES2 |
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case PixelType::Byte: |
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#endif |
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size = 1; break; |
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case PixelType::UnsignedShort: |
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#ifndef MAGNUM_TARGET_GLES2 |
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case PixelType::Short: |
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#endif |
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case PixelType::HalfFloat: |
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size = 2; break; |
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case PixelType::UnsignedInt: |
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#ifndef MAGNUM_TARGET_GLES2 |
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case PixelType::Int: |
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#endif |
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case PixelType::Float: |
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size = 4; break; |
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#ifndef MAGNUM_TARGET_GLES |
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case PixelType::UnsignedByte332: |
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case PixelType::UnsignedByte233Rev: |
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return 1; |
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#endif |
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case PixelType::UnsignedShort565: |
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#ifndef MAGNUM_TARGET_GLES |
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case PixelType::UnsignedShort565Rev: |
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#endif |
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case PixelType::UnsignedShort4444: |
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#ifndef MAGNUM_TARGET_WEBGL |
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case PixelType::UnsignedShort4444Rev: |
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#endif |
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case PixelType::UnsignedShort5551: |
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#ifndef MAGNUM_TARGET_WEBGL |
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case PixelType::UnsignedShort1555Rev: |
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#endif |
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return 2; |
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#ifndef MAGNUM_TARGET_GLES |
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case PixelType::UnsignedInt8888: |
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case PixelType::UnsignedInt8888Rev: |
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case PixelType::UnsignedInt1010102: |
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#endif |
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#if !(defined(MAGNUM_TARGET_WEBGL) && defined(MAGNUM_TARGET_GLES2)) |
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case PixelType::UnsignedInt2101010Rev: |
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#endif |
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#ifndef MAGNUM_TARGET_GLES2 |
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case PixelType::UnsignedInt10F11F11FRev: |
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case PixelType::UnsignedInt5999Rev: |
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#endif |
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case PixelType::UnsignedInt248: |
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return 4; |
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#ifndef MAGNUM_TARGET_GLES2 |
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case PixelType::Float32UnsignedInt248Rev: |
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return 8; |
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#endif |
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} |
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switch(format) { |
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#if !(defined(MAGNUM_TARGET_WEBGL) && defined(MAGNUM_TARGET_GLES2)) |
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case PixelFormat::Red: |
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#endif |
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#ifndef MAGNUM_TARGET_GLES2 |
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case PixelFormat::RedInteger: |
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#endif |
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#ifndef MAGNUM_TARGET_GLES |
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case PixelFormat::Green: |
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case PixelFormat::Blue: |
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case PixelFormat::GreenInteger: |
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case PixelFormat::BlueInteger: |
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#endif |
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#ifdef MAGNUM_TARGET_GLES2 |
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case PixelFormat::Luminance: |
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#endif |
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case PixelFormat::DepthComponent: |
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#ifndef MAGNUM_TARGET_WEBGL |
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case PixelFormat::StencilIndex: |
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#endif |
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return 1*size; |
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#if !(defined(MAGNUM_TARGET_WEBGL) && defined(MAGNUM_TARGET_GLES2)) |
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case PixelFormat::RG: |
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#endif |
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#ifndef MAGNUM_TARGET_GLES2 |
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case PixelFormat::RGInteger: |
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#endif |
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#ifdef MAGNUM_TARGET_GLES2 |
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case PixelFormat::LuminanceAlpha: |
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#endif |
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return 2*size; |
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case PixelFormat::RGB: |
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#ifndef MAGNUM_TARGET_GLES2 |
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case PixelFormat::RGBInteger: |
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#endif |
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#ifndef MAGNUM_TARGET_GLES |
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case PixelFormat::BGR: |
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case PixelFormat::BGRInteger: |
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#endif |
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#ifdef MAGNUM_TARGET_GLES2 |
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case PixelFormat::SRGB: |
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#endif |
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return 3*size; |
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case PixelFormat::RGBA: |
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#ifndef MAGNUM_TARGET_GLES2 |
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case PixelFormat::RGBAInteger: |
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#endif |
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#ifndef MAGNUM_TARGET_WEBGL |
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case PixelFormat::BGRA: |
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#endif |
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#ifdef MAGNUM_TARGET_GLES2 |
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case PixelFormat::SRGBAlpha: |
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#endif |
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#ifndef MAGNUM_TARGET_GLES |
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case PixelFormat::BGRAInteger: |
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#endif |
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return 4*size; |
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/* Handled above */ |
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case PixelFormat::DepthStencil: |
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CORRADE_ASSERT(false, "GL::pixelSize(): invalid" << type << "specified for" << format, 0); |
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} |
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CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */ |
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} |
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#ifndef DOXYGEN_GENERATING_OUTPUT |
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Debug& operator<<(Debug& debug, const PixelFormat value) { |
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switch(value) { |
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/* LCOV_EXCL_START */ |
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#define _c(value) case PixelFormat::value: return debug << "GL::PixelFormat::" #value; |
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#if !(defined(MAGNUM_TARGET_WEBGL) && defined(MAGNUM_TARGET_GLES2)) |
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_c(Red) |
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#endif |
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#ifndef MAGNUM_TARGET_GLES |
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_c(Green) |
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_c(Blue) |
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#endif |
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#ifdef MAGNUM_TARGET_GLES2 |
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_c(Luminance) |
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#endif |
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#if !(defined(MAGNUM_TARGET_WEBGL) && defined(MAGNUM_TARGET_GLES2)) |
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_c(RG) |
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#endif |
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#ifdef MAGNUM_TARGET_GLES2 |
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_c(LuminanceAlpha) |
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#endif |
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_c(RGB) |
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_c(RGBA) |
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#ifndef MAGNUM_TARGET_GLES |
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_c(BGR) |
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#endif |
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#ifndef MAGNUM_TARGET_WEBGL |
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_c(BGRA) |
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#endif |
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#ifdef MAGNUM_TARGET_GLES2 |
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_c(SRGB) |
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_c(SRGBAlpha) |
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#endif |
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#ifndef MAGNUM_TARGET_GLES2 |
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_c(RedInteger) |
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#ifndef MAGNUM_TARGET_GLES |
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_c(GreenInteger) |
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_c(BlueInteger) |
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#endif |
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_c(RGInteger) |
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_c(RGBInteger) |
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_c(RGBAInteger) |
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#ifndef MAGNUM_TARGET_GLES |
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_c(BGRInteger) |
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_c(BGRAInteger) |
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#endif |
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#endif |
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_c(DepthComponent) |
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#ifndef MAGNUM_TARGET_WEBGL |
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_c(StencilIndex) |
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#endif |
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_c(DepthStencil) |
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#undef _c |
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/* LCOV_EXCL_STOP */ |
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} |
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return debug << "GL::PixelFormat(" << Debug::nospace << reinterpret_cast<void*>(GLenum(value)) << Debug::nospace << ")"; |
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} |
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Debug& operator<<(Debug& debug, const PixelType value) { |
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switch(value) { |
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/* LCOV_EXCL_START */ |
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#define _c(value) case PixelType::value: return debug << "GL::PixelType::" #value; |
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_c(UnsignedByte) |
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#ifndef MAGNUM_TARGET_GLES2 |
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_c(Byte) |
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#endif |
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_c(UnsignedShort) |
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#ifndef MAGNUM_TARGET_GLES2 |
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_c(Short) |
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#endif |
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_c(UnsignedInt) |
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#ifndef MAGNUM_TARGET_GLES2 |
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_c(Int) |
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#endif |
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_c(HalfFloat) |
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_c(Float) |
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#ifndef MAGNUM_TARGET_GLES |
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_c(UnsignedByte332) |
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_c(UnsignedByte233Rev) |
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#endif |
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_c(UnsignedShort565) |
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#ifndef MAGNUM_TARGET_GLES |
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_c(UnsignedShort565Rev) |
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#endif |
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_c(UnsignedShort4444) |
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#ifndef MAGNUM_TARGET_WEBGL |
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_c(UnsignedShort4444Rev) |
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#endif |
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_c(UnsignedShort5551) |
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#ifndef MAGNUM_TARGET_WEBGL |
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_c(UnsignedShort1555Rev) |
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#endif |
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#ifndef MAGNUM_TARGET_GLES |
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_c(UnsignedInt8888) |
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_c(UnsignedInt8888Rev) |
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_c(UnsignedInt1010102) |
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#endif |
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#if !(defined(MAGNUM_TARGET_WEBGL) && defined(MAGNUM_TARGET_GLES2)) |
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_c(UnsignedInt2101010Rev) |
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#endif |
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#ifndef MAGNUM_TARGET_GLES2 |
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_c(UnsignedInt10F11F11FRev) |
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_c(UnsignedInt5999Rev) |
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#endif |
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_c(UnsignedInt248) |
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#ifndef MAGNUM_TARGET_GLES2 |
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_c(Float32UnsignedInt248Rev) |
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#endif |
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#undef _c |
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/* LCOV_EXCL_STOP */ |
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} |
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return debug << "GL::PixelType(" << Debug::nospace << reinterpret_cast<void*>(GLenum(value)) << Debug::nospace << ")"; |
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} |
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namespace { |
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#ifndef DOXYGEN_GENERATING_OUTPUT /* It gets *really* confused */ |
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constexpr CompressedPixelFormat CompressedFormatMapping[] { |
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#define _c(input, format) GL::CompressedPixelFormat::format, |
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#define _s(input) GL::CompressedPixelFormat{}, |
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#include "Magnum/GL/Implementation/compressedPixelFormatMapping.hpp" |
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#undef _s |
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#undef _c |
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}; |
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#endif |
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} |
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bool hasCompressedPixelFormat(const Magnum::CompressedPixelFormat format) { |
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if(isCompressedPixelFormatImplementationSpecific(format)) |
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return true; |
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#if defined(MAGNUM_BUILD_DEPRECATED) && defined(MAGNUM_TARGET_GL) |
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/* See GL/Test/PixelFormatTest.cpp for more information. Returning true |
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unconditionally here as unsupported enum values shouldn't even be |
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compiled. */ |
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if(UnsignedInt(format) > 0x1000) return true; |
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#endif |
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CORRADE_ASSERT(UnsignedInt(format) < Containers::arraySize(CompressedFormatMapping), |
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"GL::hasCompressedPixelFormat(): invalid format" << format, {}); |
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return UnsignedInt(CompressedFormatMapping[UnsignedInt(format)]); |
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} |
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CompressedPixelFormat compressedPixelFormat(const Magnum::CompressedPixelFormat format) { |
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if(isCompressedPixelFormatImplementationSpecific(format)) |
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return compressedPixelFormatUnwrap<GL::CompressedPixelFormat>(format); |
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#if defined(MAGNUM_BUILD_DEPRECATED) && defined(MAGNUM_TARGET_GL) |
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/* See GL/Test/PixelFormatTest.cpp for more information */ |
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if(UnsignedInt(format) > 0x1000) |
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return CompressedPixelFormat(UnsignedInt(format)); |
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#endif |
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CORRADE_ASSERT(UnsignedInt(format) < Containers::arraySize(CompressedFormatMapping), |
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"GL::compressedPixelFormat(): invalid format" << format, {}); |
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const CompressedPixelFormat out = CompressedFormatMapping[UnsignedInt(format)]; |
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CORRADE_ASSERT(UnsignedInt(out), |
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"GL::compressedPixelFormat(): format" << format << "is not supported on this target", {}); |
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return out; |
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} |
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Debug& operator<<(Debug& debug, const CompressedPixelFormat value) { |
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switch(value) { |
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/* LCOV_EXCL_START */ |
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#define _c(value) case CompressedPixelFormat::value: return debug << "GL::CompressedPixelFormat::" #value; |
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#ifndef MAGNUM_TARGET_GLES |
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_c(Red) |
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_c(RG) |
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_c(RGB) |
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_c(RGBA) |
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_c(RedRgtc1) |
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_c(RGRgtc2) |
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_c(SignedRedRgtc1) |
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_c(SignedRGRgtc2) |
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_c(RGBBptcUnsignedFloat) |
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_c(RGBBptcSignedFloat) |
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_c(RGBABptcUnorm) |
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_c(SRGBAlphaBptcUnorm) |
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#endif |
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#ifndef MAGNUM_TARGET_GLES2 |
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_c(RGB8Etc2) |
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_c(SRGB8Etc2) |
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_c(RGB8PunchthroughAlpha1Etc2) |
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_c(SRGB8PunchthroughAlpha1Etc2) |
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_c(RGBA8Etc2Eac) |
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_c(SRGB8Alpha8Etc2Eac) |
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_c(R11Eac) |
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_c(SignedR11Eac) |
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_c(RG11Eac) |
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_c(SignedRG11Eac) |
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#endif |
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_c(RGBS3tcDxt1) |
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_c(RGBAS3tcDxt1) |
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_c(RGBAS3tcDxt3) |
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_c(RGBAS3tcDxt5) |
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#ifndef MAGNUM_TARGET_WEBGL |
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_c(RGBAAstc4x4) |
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_c(SRGB8Alpha8Astc4x4) |
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_c(RGBAAstc5x4) |
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_c(SRGB8Alpha8Astc5x4) |
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_c(RGBAAstc5x5) |
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_c(SRGB8Alpha8Astc5x5) |
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_c(RGBAAstc6x5) |
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_c(SRGB8Alpha8Astc6x5) |
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_c(RGBAAstc6x6) |
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_c(SRGB8Alpha8Astc6x6) |
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_c(RGBAAstc8x5) |
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_c(SRGB8Alpha8Astc8x5) |
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_c(RGBAAstc8x6) |
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_c(SRGB8Alpha8Astc8x6) |
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_c(RGBAAstc8x8) |
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_c(SRGB8Alpha8Astc8x8) |
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_c(RGBAAstc10x5) |
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_c(SRGB8Alpha8Astc10x5) |
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_c(RGBAAstc10x6) |
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_c(SRGB8Alpha8Astc10x6) |
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_c(RGBAAstc10x8) |
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_c(SRGB8Alpha8Astc10x8) |
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_c(RGBAAstc10x10) |
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_c(SRGB8Alpha8Astc10x10) |
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_c(RGBAAstc12x10) |
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_c(SRGB8Alpha8Astc12x10) |
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_c(RGBAAstc12x12) |
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_c(SRGB8Alpha8Astc12x12) |
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#endif |
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#undef _c |
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/* LCOV_EXCL_STOP */ |
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} |
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return debug << "GL::CompressedPixelFormat(" << Debug::nospace << reinterpret_cast<void*>(GLenum(value)) << Debug::nospace << ")"; |
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} |
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#endif |
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}}
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