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magnum/src/Magnum/Shaders/FlatGL.cpp

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/*
This file is part of Magnum.
Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
2020, 2021, 2022 Vladimír Vondruš <mosra@centrum.cz>
Copyright © 2022 Vladislav Oleshko <vladislav.oleshko@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#include "FlatGL.h"
#include <Corrade/Containers/EnumSet.hpp>
#include <Corrade/Containers/Iterable.h>
#include <Corrade/Utility/Resource.h>
#include "Magnum/GL/Context.h"
#include "Magnum/GL/Extensions.h"
#include "Magnum/GL/Shader.h"
#include "Magnum/GL/Texture.h"
#include "Magnum/Math/Color.h"
#include "Magnum/Math/Matrix3.h"
#include "Magnum/Math/Matrix4.h"
#include "Magnum/Shaders/Implementation/CreateCompatibilityShader.h"
#ifndef MAGNUM_TARGET_GLES2
#include <Corrade/Utility/FormatStl.h>
#include "Magnum/GL/Buffer.h"
#include "Magnum/GL/TextureArray.h"
#endif
namespace Magnum { namespace Shaders {
namespace {
enum: Int {
TextureUnit = 0,
/* 1/2/3 taken by Phong (D/S/N), 4 by MeshVisualizer colormap */
ObjectIdTextureUnit = 5 /* shared with Phong and MeshVisualizer */
};
#ifndef MAGNUM_TARGET_GLES2
enum: Int {
/* Not using the zero binding to avoid conflicts with
ProjectionBufferBinding from other shaders which can likely stay
bound to the same buffer for the whole time */
TransformationProjectionBufferBinding = 1,
DrawBufferBinding = 2,
TextureTransformationBufferBinding = 3,
MaterialBufferBinding = 4
};
#endif
}
template<UnsignedInt dimensions> typename FlatGL<dimensions>::CompileState FlatGL<dimensions>::compile(const Configuration& configuration) {
#ifndef CORRADE_NO_ASSERT
{
const bool textureTransformationNotEnabledOrTextured = !(configuration.flags() & Flag::TextureTransformation) || configuration.flags() & Flag::Textured
#ifndef MAGNUM_TARGET_GLES2
|| configuration.flags() >= Flag::ObjectIdTexture
#endif
;
CORRADE_ASSERT(textureTransformationNotEnabledOrTextured,
"Shaders::FlatGL: texture transformation enabled but the shader is not textured", CompileState{NoCreate});
}
#endif
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(configuration.flags() >= Flag::UniformBuffers) || configuration.materialCount(),
"Shaders::FlatGL: material count can't be zero", CompileState{NoCreate});
CORRADE_ASSERT(!(configuration.flags() >= Flag::UniformBuffers) || configuration.drawCount(),
"Shaders::FlatGL: draw count can't be zero", CompileState{NoCreate});
#endif
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(configuration.flags() & Flag::TextureArrays) || configuration.flags() & Flag::Textured || configuration.flags() >= Flag::ObjectIdTexture,
"Shaders::FlatGL: texture arrays enabled but the shader is not textured", CompileState{NoCreate});
CORRADE_ASSERT(!(configuration.flags() & Flag::UniformBuffers) || !(configuration.flags() & Flag::TextureArrays) || configuration.flags() >= (Flag::TextureArrays|Flag::TextureTransformation),
"Shaders::FlatGL: texture arrays require texture transformation enabled as well if uniform buffers are used", CompileState{NoCreate});
#endif
#ifndef MAGNUM_TARGET_GLES
if(configuration.flags() >= Flag::UniformBuffers)
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ARB::uniform_buffer_object);
#endif
#ifndef MAGNUM_TARGET_GLES2
if(configuration.flags() >= Flag::MultiDraw) {
#ifndef MAGNUM_TARGET_GLES
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ARB::shader_draw_parameters);
#elif !defined(MAGNUM_TARGET_WEBGL)
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ANGLE::multi_draw);
#else
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::WEBGL::multi_draw);
#endif
}
#endif
#ifndef MAGNUM_TARGET_GLES
if(configuration.flags() >= Flag::TextureArrays)
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::EXT::texture_array);
#endif
#ifdef MAGNUM_BUILD_STATIC
/* Import resources on static build, if not already */
if(!Utility::Resource::hasGroup("MagnumShadersGL"))
importShaderResources();
#endif
Utility::Resource rs("MagnumShadersGL");
const GL::Context& context = GL::Context::current();
#ifndef MAGNUM_TARGET_GLES
const GL::Version version = context.supportedVersion({GL::Version::GL320, GL::Version::GL310, GL::Version::GL300, GL::Version::GL210});
#else
const GL::Version version = context.supportedVersion({GL::Version::GLES300, GL::Version::GLES200});
#endif
GL::Shader vert = Implementation::createCompatibilityShader(rs, version, GL::Shader::Type::Vertex);
GL::Shader frag = Implementation::createCompatibilityShader(rs, version, GL::Shader::Type::Fragment);
vert.addSource((configuration.flags() & Flag::Textured
#ifndef MAGNUM_TARGET_GLES2
|| configuration.flags() >= Flag::ObjectIdTexture
#endif
) ? "#define TEXTURED\n" : "")
.addSource(configuration.flags() & Flag::VertexColor ? "#define VERTEX_COLOR\n" : "")
.addSource(configuration.flags() & Flag::TextureTransformation ? "#define TEXTURE_TRANSFORMATION\n" : "")
#ifndef MAGNUM_TARGET_GLES2
.addSource(configuration.flags() & Flag::TextureArrays ? "#define TEXTURE_ARRAYS\n" : "")
#endif
.addSource(dimensions == 2 ? "#define TWO_DIMENSIONS\n" : "#define THREE_DIMENSIONS\n")
#ifndef MAGNUM_TARGET_GLES2
.addSource(configuration.flags() >= Flag::InstancedObjectId ? "#define INSTANCED_OBJECT_ID\n" : "")
#endif
.addSource(configuration.flags() & Flag::InstancedTransformation ? "#define INSTANCED_TRANSFORMATION\n" : "")
.addSource(configuration.flags() >= Flag::InstancedTextureOffset ? "#define INSTANCED_TEXTURE_OFFSET\n" : "");
#ifndef MAGNUM_TARGET_GLES2
if(configuration.flags() >= Flag::UniformBuffers) {
vert.addSource(Utility::formatString(
"#define UNIFORM_BUFFERS\n"
"#define DRAW_COUNT {}\n",
configuration.drawCount()));
vert.addSource(configuration.flags() >= Flag::MultiDraw ? "#define MULTI_DRAW\n" : "");
}
#endif
vert.addSource(rs.getString("generic.glsl"))
.addSource(rs.getString("Flat.vert"));
frag.addSource(configuration.flags() & Flag::Textured ? "#define TEXTURED\n" : "")
#ifndef MAGNUM_TARGET_GLES2
.addSource(configuration.flags() & Flag::TextureArrays ? "#define TEXTURE_ARRAYS\n" : "")
#endif
.addSource(configuration.flags() & Flag::AlphaMask ? "#define ALPHA_MASK\n" : "")
.addSource(configuration.flags() & Flag::VertexColor ? "#define VERTEX_COLOR\n" : "")
#ifndef MAGNUM_TARGET_GLES2
.addSource(configuration.flags() & Flag::ObjectId ? "#define OBJECT_ID\n" : "")
.addSource(configuration.flags() >= Flag::InstancedObjectId ? "#define INSTANCED_OBJECT_ID\n" : "")
.addSource(configuration.flags() >= Flag::ObjectIdTexture ? "#define OBJECT_ID_TEXTURE\n" : "")
#endif
;
#ifndef MAGNUM_TARGET_GLES2
if(configuration.flags() >= Flag::UniformBuffers) {
frag.addSource(Utility::formatString(
"#define UNIFORM_BUFFERS\n"
"#define DRAW_COUNT {}\n"
"#define MATERIAL_COUNT {}\n",
configuration.drawCount(),
configuration.materialCount()));
frag.addSource(configuration.flags() >= Flag::MultiDraw ? "#define MULTI_DRAW\n" : "");
}
#endif
frag.addSource(rs.getString("generic.glsl"))
.addSource(rs.getString("Flat.frag"));
vert.submitCompile();
frag.submitCompile();
FlatGL<dimensions> out{NoInit};
out._flags = configuration.flags();
#ifndef MAGNUM_TARGET_GLES2
out._materialCount = configuration.materialCount();
out._drawCount = configuration.drawCount();
#endif
out.attachShaders({vert, frag});
/* ES3 has this done in the shader directly and doesn't even provide
bindFragmentDataLocation() */
#if !defined(MAGNUM_TARGET_GLES) || defined(MAGNUM_TARGET_GLES2)
#ifndef MAGNUM_TARGET_GLES
if(!context.isExtensionSupported<GL::Extensions::ARB::explicit_attrib_location>(version))
#endif
{
out.bindAttributeLocation(Position::Location, "position");
if(configuration.flags() & Flag::Textured
#ifndef MAGNUM_TARGET_GLES2
|| configuration.flags() >= Flag::ObjectIdTexture
#endif
)
out.bindAttributeLocation(TextureCoordinates::Location, "textureCoordinates");
if(configuration.flags() & Flag::VertexColor)
out.bindAttributeLocation(Color3::Location, "vertexColor"); /* Color4 is the same */
#ifndef MAGNUM_TARGET_GLES2
if(configuration.flags() & Flag::ObjectId) {
out.bindFragmentDataLocation(ColorOutput, "color");
out.bindFragmentDataLocation(ObjectIdOutput, "objectId");
}
if(configuration.flags() >= Flag::InstancedObjectId)
out.bindAttributeLocation(ObjectId::Location, "instanceObjectId");
#endif
if(configuration.flags() & Flag::InstancedTransformation)
out.bindAttributeLocation(TransformationMatrix::Location, "instancedTransformationMatrix");
if(configuration.flags() >= Flag::InstancedTextureOffset)
out.bindAttributeLocation(TextureOffset::Location, "instancedTextureOffset");
}
#endif
out.submitLink();
return CompileState{std::move(out), std::move(vert), std::move(frag), version};
}
template<UnsignedInt dimensions> typename FlatGL<dimensions>::CompileState FlatGL<dimensions>::compile() {
return compile(Configuration{});
}
#ifdef MAGNUM_BUILD_DEPRECATED
template<UnsignedInt dimensions> typename FlatGL<dimensions>::CompileState FlatGL<dimensions>::compile(const Flags flags) {
return compile(Configuration{}
.setFlags(flags));
}
#ifndef MAGNUM_TARGET_GLES2
template<UnsignedInt dimensions> typename FlatGL<dimensions>::CompileState FlatGL<dimensions>::compile(const Flags flags, const UnsignedInt materialCount, const UnsignedInt drawCount) {
return compile(Configuration{}
.setFlags(flags)
.setMaterialCount(materialCount)
.setDrawCount(drawCount));
}
#endif
#endif
template<UnsignedInt dimensions> FlatGL<dimensions>::FlatGL(CompileState&& state): FlatGL{static_cast<FlatGL&&>(std::move(state))} {
#ifdef CORRADE_GRACEFUL_ASSERT
/* When graceful assertions fire from within compile(), we get a NoCreate'd
CompileState. Exiting makes it possible to test the assert. */
if(!id()) return;
#endif
CORRADE_INTERNAL_ASSERT_OUTPUT(checkLink({GL::Shader(state._vert), GL::Shader(state._frag)}));
#ifndef MAGNUM_TARGET_GLES
const GL::Context& context = GL::Context::current();
if(!context.isExtensionSupported<GL::Extensions::ARB::explicit_uniform_location>(state._version))
#endif
{
#ifndef MAGNUM_TARGET_GLES2
if(_flags >= Flag::UniformBuffers) {
if(_drawCount > 1) _drawOffsetUniform = uniformLocation("drawOffset");
} else
#endif
{
_transformationProjectionMatrixUniform = uniformLocation("transformationProjectionMatrix");
if(_flags & Flag::TextureTransformation)
_textureMatrixUniform = uniformLocation("textureMatrix");
#ifndef MAGNUM_TARGET_GLES2
if(_flags & Flag::TextureArrays)
_textureLayerUniform = uniformLocation("textureLayer");
#endif
_colorUniform = uniformLocation("color");
if(_flags & Flag::AlphaMask) _alphaMaskUniform = uniformLocation("alphaMask");
#ifndef MAGNUM_TARGET_GLES2
if(_flags & Flag::ObjectId) _objectIdUniform = uniformLocation("objectId");
#endif
}
}
#ifndef MAGNUM_TARGET_GLES
if(!context.isExtensionSupported<GL::Extensions::ARB::shading_language_420pack>(state._version))
#endif
{
if(_flags & Flag::Textured) setUniform(uniformLocation("textureData"), TextureUnit);
#ifndef MAGNUM_TARGET_GLES2
if(_flags >= Flag::ObjectIdTexture) setUniform(uniformLocation("objectIdTextureData"), ObjectIdTextureUnit);
if(_flags >= Flag::UniformBuffers) {
setUniformBlockBinding(uniformBlockIndex("TransformationProjection"), TransformationProjectionBufferBinding);
setUniformBlockBinding(uniformBlockIndex("Draw"), DrawBufferBinding);
if(_flags & Flag::TextureTransformation)
setUniformBlockBinding(uniformBlockIndex("TextureTransformation"), TextureTransformationBufferBinding);
setUniformBlockBinding(uniformBlockIndex("Material"), MaterialBufferBinding);
}
#endif
}
/* Set defaults in OpenGL ES (for desktop they are set in shader code itself) */
#ifdef MAGNUM_TARGET_GLES
#ifndef MAGNUM_TARGET_GLES2
if(_flags >= Flag::UniformBuffers) {
/* Draw offset is zero by default */
} else
#endif
{
setTransformationProjectionMatrix(MatrixTypeFor<dimensions, Float>{Math::IdentityInit});
if(_flags & Flag::TextureTransformation)
setTextureMatrix(Matrix3{Math::IdentityInit});
/* Texture layer is zero by default */
setColor(Magnum::Color4{1.0f});
if(_flags & Flag::AlphaMask) setAlphaMask(0.5f);
/* Object ID is zero by default */
}
#endif
}
template<UnsignedInt dimensions> FlatGL<dimensions>::FlatGL(const Configuration& configuration): FlatGL{compile(configuration)} {}
template<UnsignedInt dimensions> FlatGL<dimensions>::FlatGL(): FlatGL{Configuration{}} {}
#ifdef MAGNUM_BUILD_DEPRECATED
template<UnsignedInt dimensions> FlatGL<dimensions>::FlatGL(const Flags flags): FlatGL{compile(Configuration{}
.setFlags(flags))} {}
#ifndef MAGNUM_TARGET_GLES2
template<UnsignedInt dimensions> FlatGL<dimensions>::FlatGL(const Flags flags, const UnsignedInt materialCount, const UnsignedInt drawCount): FlatGL{compile(Configuration{}
.setFlags(flags)
.setMaterialCount(materialCount)
.setDrawCount(drawCount))} {}
#endif
#endif
template<UnsignedInt dimensions> FlatGL<dimensions>::FlatGL(NoInitT) {}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::setTransformationProjectionMatrix(const MatrixTypeFor<dimensions, Float>& matrix) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::FlatGL::setTransformationProjectionMatrix(): the shader was created with uniform buffers enabled", *this);
#endif
setUniform(_transformationProjectionMatrixUniform, matrix);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::setTextureMatrix(const Matrix3& matrix) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::FlatGL::setTextureMatrix(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(_flags & Flag::TextureTransformation,
"Shaders::FlatGL::setTextureMatrix(): the shader was not created with texture transformation enabled", *this);
setUniform(_textureMatrixUniform, matrix);
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::setTextureLayer(UnsignedInt id) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::FlatGL::setTextureLayer(): the shader was created with uniform buffers enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureArrays,
"Shaders::FlatGL::setTextureLayer(): the shader was not created with texture arrays enabled", *this);
setUniform(_textureLayerUniform, id);
return *this;
}
#endif
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::setColor(const Magnum::Color4& color) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::FlatGL::setColor(): the shader was created with uniform buffers enabled", *this);
#endif
setUniform(_colorUniform, color);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::setAlphaMask(Float mask) {
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::FlatGL::setAlphaMask(): the shader was created with uniform buffers enabled", *this);
#endif
CORRADE_ASSERT(_flags & Flag::AlphaMask,
"Shaders::FlatGL::setAlphaMask(): the shader was not created with alpha mask enabled", *this);
setUniform(_alphaMaskUniform, mask);
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::setObjectId(UnsignedInt id) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::FlatGL::setObjectId(): the shader was created with uniform buffers enabled", *this);
CORRADE_ASSERT(_flags & Flag::ObjectId,
"Shaders::FlatGL::setObjectId(): the shader was not created with object ID enabled", *this);
setUniform(_objectIdUniform, id);
return *this;
}
#endif
#ifndef MAGNUM_TARGET_GLES2
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::setDrawOffset(const UnsignedInt offset) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::FlatGL::setDrawOffset(): the shader was not created with uniform buffers enabled", *this);
CORRADE_ASSERT(offset < _drawCount,
"Shaders::FlatGL::setDrawOffset(): draw offset" << offset << "is out of bounds for" << _drawCount << "draws", *this);
if(_drawCount > 1) setUniform(_drawOffsetUniform, offset);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindTransformationProjectionBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::FlatGL::bindTransformationProjectionBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(GL::Buffer::Target::Uniform, TransformationProjectionBufferBinding);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindTransformationProjectionBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::FlatGL::bindTransformationProjectionBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(GL::Buffer::Target::Uniform, TransformationProjectionBufferBinding, offset, size);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindDrawBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::FlatGL::bindDrawBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(GL::Buffer::Target::Uniform, DrawBufferBinding);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindDrawBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::FlatGL::bindDrawBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(GL::Buffer::Target::Uniform, DrawBufferBinding, offset, size);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindTextureTransformationBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::FlatGL::bindTextureTransformationBuffer(): the shader was not created with uniform buffers enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureTransformation,
"Shaders::FlatGL::bindTextureTransformationBuffer(): the shader was not created with texture transformation enabled", *this);
buffer.bind(GL::Buffer::Target::Uniform, TextureTransformationBufferBinding);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindTextureTransformationBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::FlatGL::bindTextureTransformationBuffer(): the shader was not created with uniform buffers enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureTransformation,
"Shaders::FlatGL::bindTextureTransformationBuffer(): the shader was not created with texture transformation enabled", *this);
buffer.bind(GL::Buffer::Target::Uniform, TextureTransformationBufferBinding, offset, size);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindMaterialBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::FlatGL::bindMaterialBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(GL::Buffer::Target::Uniform, MaterialBufferBinding);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindMaterialBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::FlatGL::bindMaterialBuffer(): the shader was not created with uniform buffers enabled", *this);
buffer.bind(GL::Buffer::Target::Uniform, MaterialBufferBinding, offset, size);
return *this;
}
#endif
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindTexture(GL::Texture2D& texture) {
CORRADE_ASSERT(_flags & Flag::Textured,
"Shaders::FlatGL::bindTexture(): the shader was not created with texturing enabled", *this);
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags & Flag::TextureArrays),
"Shaders::FlatGL::bindTexture(): the shader was created with texture arrays enabled, use a Texture2DArray instead", *this);
#endif
texture.bind(TextureUnit);
return *this;
}
#ifndef MAGNUM_TARGET_GLES2
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindTexture(GL::Texture2DArray& texture) {
CORRADE_ASSERT(_flags & Flag::Textured,
"Shaders::FlatGL::bindTexture(): the shader was not created with texturing enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureArrays,
"Shaders::FlatGL::bindTexture(): the shader was not created with texture arrays enabled, use a Texture2D instead", *this);
texture.bind(TextureUnit);
return *this;
}
#endif
#ifndef MAGNUM_TARGET_GLES2
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindObjectIdTexture(GL::Texture2D& texture) {
CORRADE_ASSERT(_flags >= Flag::ObjectIdTexture,
"Shaders::FlatGL::bindObjectIdTexture(): the shader was not created with object ID texture enabled", *this);
#ifndef MAGNUM_TARGET_GLES2
CORRADE_ASSERT(!(_flags & Flag::TextureArrays),
"Shaders::FlatGL::bindObjectIdTexture(): the shader was created with texture arrays enabled, use a Texture2DArray instead", *this);
#endif
texture.bind(ObjectIdTextureUnit);
return *this;
}
template<UnsignedInt dimensions> FlatGL<dimensions>& FlatGL<dimensions>::bindObjectIdTexture(GL::Texture2DArray& texture) {
CORRADE_ASSERT(_flags >= Flag::ObjectIdTexture,
"Shaders::FlatGL::bindObjectIdTexture(): the shader was not created with object ID texture enabled", *this);
CORRADE_ASSERT(_flags & Flag::TextureArrays,
"Shaders::FlatGL::bindObjectIdTexture(): the shader was not created with texture arrays enabled, use a Texture2D instead", *this);
texture.bind(ObjectIdTextureUnit);
return *this;
}
#endif
template class MAGNUM_SHADERS_EXPORT FlatGL<2>;
template class MAGNUM_SHADERS_EXPORT FlatGL<3>;
namespace Implementation {
Debug& operator<<(Debug& debug, const FlatGLFlag value) {
#ifndef MAGNUM_TARGET_GLES2
/* Special case coming from the FlatGLFlags printer. As both flags are a
superset of ObjectId, printing just one would result in
`Flag::InstancedObjectId|Flag(0x800)` in the output. */
if(value == FlatGLFlag(UnsignedShort(FlatGLFlag::InstancedObjectId|FlatGLFlag::ObjectIdTexture)))
return debug << FlatGLFlag::InstancedObjectId << Debug::nospace << "|" << Debug::nospace << FlatGLFlag::ObjectIdTexture;
#endif
debug << "Shaders::FlatGL::Flag" << Debug::nospace;
switch(value) {
/* LCOV_EXCL_START */
#define _c(v) case FlatGLFlag::v: return debug << "::" #v;
_c(Textured)
_c(AlphaMask)
_c(VertexColor)
_c(TextureTransformation)
#ifndef MAGNUM_TARGET_GLES2
_c(ObjectId)
_c(InstancedObjectId)
_c(ObjectIdTexture)
#endif
_c(InstancedTransformation)
_c(InstancedTextureOffset)
#ifndef MAGNUM_TARGET_GLES2
_c(UniformBuffers)
_c(MultiDraw)
_c(TextureArrays)
#endif
#undef _c
/* LCOV_EXCL_STOP */
}
return debug << "(" << Debug::nospace << reinterpret_cast<void*>(UnsignedShort(value)) << Debug::nospace << ")";
}
Debug& operator<<(Debug& debug, const FlatGLFlags value) {
return Containers::enumSetDebugOutput(debug, value, "Shaders::FlatGL::Flags{}", {
FlatGLFlag::Textured,
FlatGLFlag::AlphaMask,
FlatGLFlag::VertexColor,
FlatGLFlag::InstancedTextureOffset, /* Superset of TextureTransformation */
FlatGLFlag::TextureTransformation,
#ifndef MAGNUM_TARGET_GLES2
/* Both are a superset of ObjectId, meaning printing just one would
result in `Flag::InstancedObjectId|Flag(0x800)` in the output. So we
pass both and let the FlatGLFlag printer deal with that. */
FlatGLFlag(UnsignedShort(FlatGLFlag::InstancedObjectId|FlatGLFlag::ObjectIdTexture)),
FlatGLFlag::InstancedObjectId, /* Superset of ObjectId */
FlatGLFlag::ObjectIdTexture, /* Superset of ObjectId */
FlatGLFlag::ObjectId,
#endif
FlatGLFlag::InstancedTransformation,
#ifndef MAGNUM_TARGET_GLES2
FlatGLFlag::MultiDraw, /* Superset of UniformBuffers */
FlatGLFlag::UniformBuffers,
FlatGLFlag::TextureArrays
#endif
});
}
}
}}