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magnum/src/Magnum/Shaders/LineGL.cpp

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Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
/*
This file is part of Magnum.
Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
It's 2023 already!
3 years ago
2020, 2021, 2022, 2023 Vladimír Vondruš <mosra@centrum.cz>
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
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 "LineGL.h"
#include <Corrade/Containers/EnumSet.hpp>
#include <Corrade/Containers/Iterable.h>
#include <Corrade/Containers/String.h>
#include <Corrade/Utility/Format.h>
#include <Corrade/Utility/Resource.h>
#include "Magnum/GL/Buffer.h"
#include "Magnum/GL/Context.h"
#include "Magnum/GL/Extensions.h"
#include "Magnum/GL/Shader.h"
#include "Magnum/Math/Color.h"
#include "Magnum/Math/Matrix3.h"
#include "Magnum/Math/Matrix4.h"
#include "Magnum/Shaders/Line.h"
#include "Magnum/Shaders/Implementation/lineMiterLimit.h"
Shaders: drop the createCompatibilityShader() helper. With the workarounds moved to the GL::Shader class itself, it's just a complicated wrapper for adding the compatibility.glsl file and a rather strange way to define a file-local helper for resource import on static builds. Do that directly instead.
3 years ago
#ifdef MAGNUM_BUILD_STATIC
static void importShaderResources() {
CORRADE_RESOURCE_INITIALIZE(MagnumShaders_RESOURCES_GL)
}
#endif
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
namespace Magnum { namespace Shaders {
using namespace Containers::Literals;
using namespace Math::Literals;
namespace {
enum: Int {
/* 0/1/2/3 taken by Phong (A/D/S/N), 4 by MeshVisualizer colormap, 5 by
object ID textures, 6 by Vector */
TextureUnit = 7
};
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,
MaterialBufferBinding = 3
};
}
template<UnsignedInt dimensions> typename LineGL<dimensions>::CompileState LineGL<dimensions>::compile(const Configuration& configuration) {
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
#ifndef CORRADE_NO_ASSERT
#ifndef MAGNUM_TARGET_WEBGL
if(!(configuration.flags() >= Flag::ShaderStorageBuffers))
#endif
{
CORRADE_ASSERT(!(configuration.flags() >= Flag::UniformBuffers) || configuration.materialCount(),
"Shaders::LineGL: material count can't be zero", CompileState{NoCreate});
CORRADE_ASSERT(!(configuration.flags() >= Flag::UniformBuffers) || configuration.drawCount(),
"Shaders::LineGL: draw count can't be zero", CompileState{NoCreate});
}
#endif
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
#ifndef MAGNUM_TARGET_GLES
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::EXT::gpu_shader4);
if(configuration.flags() >= Flag::UniformBuffers)
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ARB::uniform_buffer_object);
#endif
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
#ifndef MAGNUM_TARGET_WEBGL
if(configuration.flags() >= Flag::ShaderStorageBuffers) {
#ifndef MAGNUM_TARGET_GLES
MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ARB::shader_storage_buffer_object);
#else
MAGNUM_ASSERT_GL_VERSION_SUPPORTED(GL::Version::GLES310);
#endif
}
#endif
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
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
}
#ifdef MAGNUM_BUILD_STATIC
/* Import resources on static build, if not already */
if(!Utility::Resource::hasGroup("MagnumShadersGL"_s))
importShaderResources();
#endif
Utility::Resource rs{"MagnumShadersGL"_s};
#ifndef MAGNUM_TARGET_GLES
Shaders: don't format & pass _LOCATION defines on ES < 3.1 and WebGL. Saves quite a few unnecessary allocations and string operations.
3 years ago
const GL::Context& context = GL::Context::current();
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
const GL::Version version = context.supportedVersion({GL::Version::GL320, GL::Version::GL310, GL::Version::GL300, GL::Version::GL210});
Shaders: don't format & pass _LOCATION defines on ES < 3.1 and WebGL. Saves quite a few unnecessary allocations and string operations.
3 years ago
#elif !defined(MAGNUM_TARGET_WEBGL)
const GL::Version version = GL::Context::current().supportedVersion({GL::Version::GLES310, GL::Version::GLES300});
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
#else
Shaders: don't format & pass _LOCATION defines on ES < 3.1 and WebGL. Saves quite a few unnecessary allocations and string operations.
3 years ago
constexpr GL::Version version = GL::Version::GLES300;
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
#endif
/* Cap and join style is needed by both the vertex and fragment shader,
prepare their defines just once for both */
Containers::StringView capStyleDefine, joinStyleDefine;
switch(configuration.capStyle()) {
case LineCapStyle::Butt:
capStyleDefine = "#define CAP_STYLE_BUTT\n"_s;
break;
case LineCapStyle::Square:
capStyleDefine = "#define CAP_STYLE_SQUARE\n"_s;
break;
case LineCapStyle::Round:
capStyleDefine = "#define CAP_STYLE_ROUND\n"_s;
break;
case LineCapStyle::Triangle:
capStyleDefine = "#define CAP_STYLE_TRIANGLE\n"_s;
break;
}
switch(configuration.joinStyle()) {
case LineJoinStyle::Miter:
joinStyleDefine = "#define JOIN_STYLE_MITER\n"_s;
break;
case LineJoinStyle::Bevel:
joinStyleDefine = "#define JOIN_STYLE_BEVEL\n"_s;
break;
}
CORRADE_INTERNAL_ASSERT(capStyleDefine);
CORRADE_INTERNAL_ASSERT(joinStyleDefine);
Shaders: drop the createCompatibilityShader() helper. With the workarounds moved to the GL::Shader class itself, it's just a complicated wrapper for adding the compatibility.glsl file and a rather strange way to define a file-local helper for resource import on static builds. Do that directly instead.
3 years ago
GL::Shader vert{version, GL::Shader::Type::Vertex};
vert.addSource(rs.getString("compatibility.glsl"_s))
.addSource(capStyleDefine)
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
.addSource(joinStyleDefine)
.addSource(configuration.flags() & Flag::VertexColor ? "#define VERTEX_COLOR\n"_s : ""_s)
.addSource(dimensions == 2 ? "#define TWO_DIMENSIONS\n"_s : "#define THREE_DIMENSIONS\n"_s)
.addSource(configuration.flags() >= Flag::InstancedObjectId ? "#define INSTANCED_OBJECT_ID\n"_s : ""_s)
.addSource(configuration.flags() & Flag::InstancedTransformation ? "#define INSTANCED_TRANSFORMATION\n"_s : ""_s);
if(configuration.flags() >= Flag::UniformBuffers) {
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
#ifndef MAGNUM_TARGET_WEBGL
/* SSBOs have unbounded per-draw arrays so just a plain string can be
passed */
if(configuration.flags() >= Flag::ShaderStorageBuffers) {
vert.addSource(
"#define UNIFORM_BUFFERS\n"
"#define SHADER_STORAGE_BUFFERS\n"_s);
} else
#endif
{
vert.addSource(Utility::format(
"#define UNIFORM_BUFFERS\n"
"#define DRAW_COUNT {}\n"
"#define MATERIAL_COUNT {}\n",
configuration.drawCount(),
configuration.materialCount()));
}
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
vert.addSource(configuration.flags() >= Flag::MultiDraw ? "#define MULTI_DRAW\n"_s : ""_s);
}
vert.addSource(rs.getString("generic.glsl"_s))
.addSource(rs.getString("Line.vert"_s))
.submitCompile();
Shaders: drop the createCompatibilityShader() helper. With the workarounds moved to the GL::Shader class itself, it's just a complicated wrapper for adding the compatibility.glsl file and a rather strange way to define a file-local helper for resource import on static builds. Do that directly instead.
3 years ago
GL::Shader frag{version, GL::Shader::Type::Fragment};
frag.addSource(rs.getString("compatibility.glsl"_s))
.addSource(capStyleDefine)
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
.addSource(joinStyleDefine)
.addSource(configuration.flags() & Flag::VertexColor ? "#define VERTEX_COLOR\n"_s : ""_s)
.addSource(configuration.flags() & Flag::ObjectId ? "#define OBJECT_ID\n"_s : ""_s)
.addSource(configuration.flags() >= Flag::InstancedObjectId ? "#define INSTANCED_OBJECT_ID\n"_s : ""_s);
if(configuration.flags() >= Flag::UniformBuffers) {
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
#ifndef MAGNUM_TARGET_WEBGL
/* SSBOs have unbounded per-draw arrays so just a plain string can be
passed */
if(configuration.flags() >= Flag::ShaderStorageBuffers) {
frag.addSource(
"#define UNIFORM_BUFFERS\n"
"#define SHADER_STORAGE_BUFFERS\n"_s);
} else
#endif
{
frag.addSource(Utility::format(
"#define UNIFORM_BUFFERS\n"
"#define DRAW_COUNT {}\n"
"#define MATERIAL_COUNT {}\n",
configuration.drawCount(),
configuration.materialCount()));
}
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
frag.addSource(configuration.flags() >= Flag::MultiDraw ? "#define MULTI_DRAW\n"_s : ""_s);
}
frag.addSource(rs.getString("generic.glsl"_s))
.addSource(rs.getString("Line.frag"_s))
.submitCompile();
LineGL<dimensions> out{NoInit};
out._flags = configuration.flags();
out._capStyle = configuration.capStyle();
out._joinStyle = configuration.joinStyle();
out._materialCount = configuration.materialCount();
out._drawCount = configuration.drawCount();
out.attachShaders({vert, frag});
/* ES3 has this done in the shader directly and doesn't even provide
bindFragmentDataLocation() */
#ifndef MAGNUM_TARGET_GLES
if(!context.isExtensionSupported<GL::Extensions::ARB::explicit_attrib_location>(version)) {
out.bindAttributeLocation(Position::Location, "position"_s);
out.bindAttributeLocation(PreviousPosition::Location, "previousPosition"_s);
out.bindAttributeLocation(NextPosition::Location, "nextPosition"_s);
out.bindAttributeLocation(Annotation::Location, "annotation"_s);
if(configuration.flags() & Flag::VertexColor)
out.bindAttributeLocation(Color3::Location, "vertexColor"_s); /* Color4 is the same */
if(configuration.flags() & Flag::ObjectId) {
out.bindFragmentDataLocation(ColorOutput, "color"_s);
out.bindFragmentDataLocation(ObjectIdOutput, "objectId"_s);
}
if(configuration.flags() >= Flag::InstancedObjectId)
out.bindAttributeLocation(ObjectId::Location, "instanceObjectId"_s);
if(configuration.flags() & Flag::InstancedTransformation)
out.bindAttributeLocation(TransformationMatrix::Location, "instancedTransformationMatrix"_s);
}
#endif
out.submitLink();
return CompileState{std::move(out), std::move(vert), std::move(frag)
Shaders: remove various redundant ifdefs.
3 years ago
#if !defined(MAGNUM_TARGET_GLES) || !defined(MAGNUM_TARGET_WEBGL)
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
, version
#endif
};
}
template<UnsignedInt dimensions> LineGL<dimensions>::LineGL(CompileState&& state): LineGL{static_cast<LineGL&&>(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
Shaders: minor cleanup.
3 years ago
const GL::Context& context = GL::Context::current();
if(!context.isExtensionSupported<GL::Extensions::ARB::explicit_uniform_location>(state._version))
Shaders: remove various redundant ifdefs.
3 years ago
#elif !defined(MAGNUM_TARGET_WEBGL)
Shaders: use explicit texture location and binding on ES3.1+. No reason not to, reduces the amount of unnecessary driver calls quite significantly.
3 years ago
if(state._version < GL::Version::GLES310)
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
#endif
{
_viewportSizeUniform = uniformLocation("viewportSize"_s);
if(_flags >= Flag::UniformBuffers) {
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
if(_drawCount > 1
#ifndef MAGNUM_TARGET_WEBGL
|| flags() >= Flag::ShaderStorageBuffers
#endif
) _drawOffsetUniform = uniformLocation("drawOffset"_s);
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
} else {
_transformationProjectionMatrixUniform = uniformLocation("transformationProjectionMatrix"_s);
_widthUniform = uniformLocation("width"_s);
_smoothnessUniform = uniformLocation("smoothness"_s);
if(_joinStyle == LineJoinStyle::Miter)
_miterLimitUniform = uniformLocation("miterLimit"_s);
_backgroundColorUniform = uniformLocation("backgroundColor"_s);
_colorUniform = uniformLocation("color"_s);
if(_flags & Flag::ObjectId)
_objectIdUniform = uniformLocation("objectId"_s);
}
}
#ifndef MAGNUM_TARGET_GLES
Shaders: minor cleanup.
3 years ago
if(!context.isExtensionSupported<GL::Extensions::ARB::shading_language_420pack>(state._version))
Shaders: remove various redundant ifdefs.
3 years ago
#elif !defined(MAGNUM_TARGET_WEBGL)
Shaders: use explicit texture location and binding on ES3.1+. No reason not to, reduces the amount of unnecessary driver calls quite significantly.
3 years ago
if(state._version < GL::Version::GLES310)
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
#endif
{
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
/* SSBOs have bindings defined in the source always */
if(_flags >= Flag::UniformBuffers
#ifndef MAGNUM_TARGET_WEBGL
&& !(_flags >= Flag::ShaderStorageBuffers)
#endif
) {
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
setUniformBlockBinding(uniformBlockIndex("TransformationProjection"_s), TransformationProjectionBufferBinding);
setUniformBlockBinding(uniformBlockIndex("Draw"_s), DrawBufferBinding);
setUniformBlockBinding(uniformBlockIndex("Material"_s), MaterialBufferBinding);
}
}
/* Set defaults in OpenGL ES (for desktop they are set in shader code itself) */
#ifdef MAGNUM_TARGET_GLES
if(_flags >= Flag::UniformBuffers) {
/* Draw offset is zero by default */
} else {
setTransformationProjectionMatrix(MatrixTypeFor<dimensions, Float>{Math::IdentityInit});
setWidth(1.0f);
/* Smoothness is zero by default */
if(_joinStyle == LineJoinStyle::Miter)
setMiterLengthLimit(4.0f);
setColor(Magnum::Color4{1.0f});
/* Object ID is zero by default */
}
#endif
}
template<UnsignedInt dimensions> LineGL<dimensions>::LineGL(const Configuration& configuration): LineGL{compile(configuration)} {}
template<UnsignedInt dimensions> LineGL<dimensions>::LineGL(NoInitT) {}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::setViewportSize(const Vector2& size) {
setUniform(_viewportSizeUniform, size);
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::setTransformationProjectionMatrix(const MatrixTypeFor<dimensions, Float>& matrix) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::LineGL::setTransformationProjectionMatrix(): the shader was created with uniform buffers enabled", *this);
setUniform(_transformationProjectionMatrixUniform, matrix);
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::setBackgroundColor(const Magnum::Color4& color) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::LineGL::setBackgroundColor(): the shader was created with uniform buffers enabled", *this);
setUniform(_backgroundColorUniform, color);
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::setColor(const Magnum::Color4& color) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::LineGL::setColor(): the shader was created with uniform buffers enabled", *this);
setUniform(_colorUniform, color);
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::setWidth(const Float width) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::LineGL::setWidth(): the shader was created with uniform buffers enabled", *this);
setUniform(_widthUniform, width);
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::setSmoothness(const Float smoothness) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::LineGL::setSmoothness(): the shader was created with uniform buffers enabled", *this);
setUniform(_smoothnessUniform, smoothness);
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::setMiterLengthLimit(const Float limit) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::LineGL::setMiterLengthLimit(): the shader was created with uniform buffers enabled", *this);
CORRADE_ASSERT(_joinStyle == LineJoinStyle::Miter,
"Shaders::LineGL::setMiterLengthLimit(): the shader was created with" << _joinStyle, *this);
setUniform(_miterLimitUniform, Implementation::lineMiterLengthLimit("Shaders::LineGL::setMiterLengthLimit():", limit));
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::setMiterAngleLimit(const Rad limit) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::LineGL::setMiterAngleLimit(): the shader was created with uniform buffers enabled", *this);
CORRADE_ASSERT(_joinStyle == LineJoinStyle::Miter,
"Shaders::LineGL::setMiterAngleLimit(): the shader was created with" << _joinStyle, *this);
setUniform(_miterLimitUniform, Implementation::lineMiterAngleLimit("Shaders::LineGL::setMiterAngleLimit():", limit));
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::setObjectId(UnsignedInt id) {
CORRADE_ASSERT(!(_flags >= Flag::UniformBuffers),
"Shaders::LineGL::setObjectId(): the shader was created with uniform buffers enabled", *this);
CORRADE_ASSERT(_flags & Flag::ObjectId,
"Shaders::LineGL::setObjectId(): the shader was not created with object ID enabled", *this);
setUniform(_objectIdUniform, id);
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::setDrawOffset(const UnsignedInt offset) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::LineGL::setDrawOffset(): the shader was not created with uniform buffers enabled", *this);
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
#ifndef MAGNUM_TARGET_WEBGL
CORRADE_ASSERT(_flags >= Flag::ShaderStorageBuffers || offset < _drawCount,
"Shaders::LineGL::setDrawOffset(): draw offset" << offset << "is out of bounds for" << _drawCount << "draws", *this);
#else
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
CORRADE_ASSERT(offset < _drawCount,
"Shaders::LineGL::setDrawOffset(): draw offset" << offset << "is out of bounds for" << _drawCount << "draws", *this);
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
#endif
if(_drawCount > 1
#ifndef MAGNUM_TARGET_WEBGL
|| _flags >= Flag::ShaderStorageBuffers
#endif
) setUniform(_drawOffsetUniform, offset);
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::bindTransformationProjectionBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::LineGL::bindTransformationProjectionBuffer(): the shader was not created with uniform buffers enabled", *this);
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, TransformationProjectionBufferBinding);
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::bindTransformationProjectionBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::LineGL::bindTransformationProjectionBuffer(): the shader was not created with uniform buffers enabled", *this);
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, TransformationProjectionBufferBinding, offset, size);
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::bindDrawBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::LineGL::bindDrawBuffer(): the shader was not created with uniform buffers enabled", *this);
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, DrawBufferBinding);
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::bindDrawBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::LineGL::bindDrawBuffer(): the shader was not created with uniform buffers enabled", *this);
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, DrawBufferBinding, offset, size);
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::bindMaterialBuffer(GL::Buffer& buffer) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::LineGL::bindMaterialBuffer(): the shader was not created with uniform buffers enabled", *this);
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, MaterialBufferBinding);
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>& LineGL<dimensions>::bindMaterialBuffer(GL::Buffer& buffer, const GLintptr offset, const GLsizeiptr size) {
CORRADE_ASSERT(_flags >= Flag::UniformBuffers,
"Shaders::LineGL::bindMaterialBuffer(): the shader was not created with uniform buffers enabled", *this);
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
buffer.bind(
#ifndef MAGNUM_TARGET_WEBGL
_flags >= Flag::ShaderStorageBuffers ? GL::Buffer::Target::ShaderStorage :
#endif
GL::Buffer::Target::Uniform, MaterialBufferBinding, offset, size);
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
return *this;
}
template<UnsignedInt dimensions> LineGL<dimensions>::Configuration::Configuration(): _capStyle{LineCapStyle::Square}, _joinStyle{LineJoinStyle::Miter} {}
template class MAGNUM_SHADERS_EXPORT LineGL<2>;
template class MAGNUM_SHADERS_EXPORT LineGL<3>;
namespace Implementation {
Debug& operator<<(Debug& debug, const LineGLFlag value) {
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
#ifndef MAGNUM_TARGET_WEBGL
/* Special case coming from the Flags printer. As both flags are a superset
of UniformBuffers, printing just one would result in
`Flag::MultiDraw|Flag(0x40)` in the output. */
if(value == LineGLFlag(UnsignedShort(LineGLFlag::MultiDraw|LineGLFlag::ShaderStorageBuffers)))
return debug << LineGLFlag::MultiDraw << Debug::nospace << "|" << Debug::nospace << LineGLFlag::ShaderStorageBuffers;
#endif
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
debug << "Shaders::LineGL::Flag" << Debug::nospace;
switch(value) {
/* LCOV_EXCL_START */
#define _c(v) case LineGLFlag::v: return debug << "::" #v;
_c(VertexColor)
_c(ObjectId)
_c(InstancedObjectId)
_c(InstancedTransformation)
_c(UniformBuffers)
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
#ifndef MAGNUM_TARGET_WEBGL
_c(ShaderStorageBuffers)
#endif
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
_c(MultiDraw)
#undef _c
/* LCOV_EXCL_STOP */
}
return debug << "(" << Debug::nospace << reinterpret_cast<void*>(UnsignedShort(value)) << Debug::nospace << ")";
}
Debug& operator<<(Debug& debug, const LineGLFlags value) {
return Containers::enumSetDebugOutput(debug, value, "Shaders::LineGL::Flags{}", {
LineGLFlag::VertexColor,
LineGLFlag::InstancedObjectId, /* Superset of ObjectId */
LineGLFlag::ObjectId,
LineGLFlag::InstancedTransformation,
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
#ifndef MAGNUM_TARGET_WEBGL
/* Both are a superset of UniformBuffers, meaning printing just one
would result in `Flag::MultiDraw|Flag(0x40)` in the output. So we
pass both and let the Flag printer deal with that. */
LineGLFlag(UnsignedShort(LineGLFlag::MultiDraw|LineGLFlag::ShaderStorageBuffers)),
#endif
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
LineGLFlag::MultiDraw, /* Superset of UniformBuffers */
Shaders: add SSBO support to all shaders. For when there's so much to render that it wouldn't fit into an UBO and splitting draw calls and binding buffers under an offset is unwanted overhead.
3 years ago
#ifndef MAGNUM_TARGET_WEBGL
LineGLFlag::ShaderStorageBuffers, /* Superset of UniformBuffers */
#endif
Shaders: initial implementation of a line shader. The shader requires the input data to be laid out in a rather specific way, and there will be a dedicated MeshTools utility for it in the following commits. For independence though, the shader tests use a custom helper. The initial implementation has certain corner cases which will be eventually resolved. For now they are pinned down with repro cases in the test. But apart from that, it's pretty much usable in practice. Remaining join styles (round and miter-clip) as well as stipple support will eventually follow as well.
4 years ago
LineGLFlag::UniformBuffers
});
}
}
}}