SkMesh.cpp | Explore in Territory

/*
 * Copyright 2021 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "include/core/SkMesh.h"

#include "include/core/SkAlphaType.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkData.h"
#include "include/private/SkSLSampleUsage.h"
#include "include/private/base/SkAlign.h"
#include "include/private/base/SkAssert.h"
#include "include/private/base/SkMath.h"
#include "include/private/base/SkTArray.h"
#include "include/private/base/SkTo.h"
#include "src/base/SkSafeMath.h"
#include "src/core/SkChecksum.h"
#include "src/core/SkMeshPriv.h"
#include "src/core/SkRuntimeEffectPriv.h"
#include "src/sksl/SkSLAnalysis.h"
#include "src/sksl/SkSLBuiltinTypes.h"
#include "src/sksl/SkSLCompiler.h"
#include "src/sksl/SkSLContext.h"
#include "src/sksl/SkSLProgramKind.h"
#include "src/sksl/SkSLProgramSettings.h"
#include "src/sksl/analysis/SkSLProgramVisitor.h"
#include "src/sksl/ir/SkSLExpression.h"
#include "src/sksl/ir/SkSLFieldAccess.h"
#include "src/sksl/ir/SkSLFunctionDeclaration.h"
#include "src/sksl/ir/SkSLFunctionDefinition.h"
#include "src/sksl/ir/SkSLModifierFlags.h"
#include "src/sksl/ir/SkSLProgram.h"
#include "src/sksl/ir/SkSLProgramElement.h"
#include "src/sksl/ir/SkSLReturnStatement.h"
#include "src/sksl/ir/SkSLStatement.h"
#include "src/sksl/ir/SkSLStructDefinition.h"
#include "src/sksl/ir/SkSLType.h"
#include "src/sksl/ir/SkSLVarDeclarations.h"
#include "src/sksl/ir/SkSLVariable.h"
#include "src/sksl/ir/SkSLVariableReference.h"

#include <algorithm>
#include <locale>
#include <optional>
#include <string>
#include <tuple>
#include <utility>

usingnamespaceskia_private;

Attribute;
Varying;

IndexBuffer;
VertexBuffer;

#define RETURN_FAILURE(...) …

#define RETURN_ERROR(...) …

#define RETURN_SUCCESS …

Uniform;
Child;

static std::vector<Uniform>::iterator find_uniform(std::vector<Uniform>& uniforms,
                                                   std::string_view name) { … }

static std::tuple<bool, SkString>
gather_uniforms_and_check_for_main(const SkSL::Program& program,
                                   std::vector<Uniform>* uniforms,
                                   std::vector<Child>* children,
                                   SkMeshSpecification::Uniform::Flags stage,
                                   size_t* offset) { … }

ColorType;

ColorType get_fs_color_type(const SkSL::Program& fsProgram) { … }

// This is a non-exhaustive check for the validity of a variable name. The SkSL compiler will
// actually process the name. We're just guarding against having multiple tokens embedded in the
// name before we put it into a struct definition.
static bool check_name(const SkString& name) { … }

static size_t attribute_type_size(Attribute::Type type) { … }

static const char* attribute_type_string(Attribute::Type type) { … }

static const char* varying_type_string(Varying::Type type) { … }

std::tuple<bool, SkString>
check_vertex_offsets_and_stride(SkSpan<const Attribute> attributes,
                                size_t                  stride) { … }

int check_for_passthrough_local_coords_and_dead_varyings(const SkSL::Program& fsProgram,
                                                         uint32_t* deadVaryingMask) { … }

SkMeshSpecification::Result SkMeshSpecification::Make(SkSpan<const Attribute> attributes,
                                                      size_t vertexStride,
                                                      SkSpan<const Varying> varyings,
                                                      const SkString& vs,
                                                      const SkString& fs) { … }

SkMeshSpecification::Result SkMeshSpecification::Make(SkSpan<const Attribute> attributes,
                                                      size_t vertexStride,
                                                      SkSpan<const Varying> varyings,
                                                      const SkString& vs,
                                                      const SkString& fs,
                                                      sk_sp<SkColorSpace> cs) { … }

SkMeshSpecification::Result SkMeshSpecification::Make(SkSpan<const Attribute> attributes,
                                                      size_t vertexStride,
                                                      SkSpan<const Varying> varyings,
                                                      const SkString& vs,
                                                      const SkString& fs,
                                                      sk_sp<SkColorSpace> cs,
                                                      SkAlphaType at) { … }

SkMeshSpecification::Result SkMeshSpecification::MakeFromSourceWithStructs(
        SkSpan<const Attribute> attributes,
        size_t                  stride,
        SkSpan<const Varying>   varyings,
        const SkString&         vs,
        const SkString&         fs,
        sk_sp<SkColorSpace>     cs,
        SkAlphaType             at) { … }

SkMeshSpecification::~SkMeshSpecification() = default;

SkMeshSpecification::SkMeshSpecification(
        SkSpan<const Attribute>              attributes,
        size_t                               stride,
        SkSpan<const Varying>                varyings,
        int                                  passthroughLocalCoordsVaryingIndex,
        uint32_t                             deadVaryingMask,
        std::vector<Uniform>                 uniforms,
        std::vector<Child>                   children,
        std::unique_ptr<const SkSL::Program> vs,
        std::unique_ptr<const SkSL::Program> fs,
        ColorType                            ct,
        sk_sp<SkColorSpace>                  cs,
        SkAlphaType                          at)
        : … { … }

size_t SkMeshSpecification::uniformSize() const { … }

const Uniform* SkMeshSpecification::findUniform(std::string_view name) const { … }

const Child* SkMeshSpecification::findChild(std::string_view name) const { … }

const Attribute* SkMeshSpecification::findAttribute(std::string_view name) const { … }

const Varying* SkMeshSpecification::findVarying(std::string_view name) const { … }

//////////////////////////////////////////////////////////////////////////////

SkMesh::SkMesh()  = default;
SkMesh::~SkMesh() = default;

SkMesh::SkMesh(const SkMesh&) = default;
SkMesh::SkMesh(SkMesh&&)      = default;

SkMesh& SkMesh::operator=(const SkMesh&) = default;
SkMesh& SkMesh::operator=(SkMesh&&)      = default;

SkMesh::Result SkMesh::Make(sk_sp<SkMeshSpecification> spec,
                            Mode mode,
                            sk_sp<VertexBuffer> vb,
                            size_t vertexCount,
                            size_t vertexOffset,
                            sk_sp<const SkData> uniforms,
                            SkSpan<ChildPtr> children,
                            const SkRect& bounds) { … }

SkMesh::Result SkMesh::MakeIndexed(sk_sp<SkMeshSpecification> spec,
                                   Mode mode,
                                   sk_sp<VertexBuffer> vb,
                                   size_t vertexCount,
                                   size_t vertexOffset,
                                   sk_sp<IndexBuffer> ib,
                                   size_t indexCount,
                                   size_t indexOffset,
                                   sk_sp<const SkData> uniforms,
                                   SkSpan<ChildPtr> children,
                                   const SkRect& bounds) { … }

bool SkMesh::isValid() const { … }

static size_t min_vcount_for_mode(SkMesh::Mode mode) { … }

std::tuple<bool, SkString> SkMesh::validate() const { … }

//////////////////////////////////////////////////////////////////////////////

static inline bool check_update(const void* data, size_t offset, size_t size, size_t bufferSize) { … }

bool SkMesh::IndexBuffer::update(GrDirectContext* dc,
                                 const void* data,
                                 size_t offset,
                                 size_t size) { … }

bool SkMesh::VertexBuffer::update(GrDirectContext* dc,
                                  const void* data,
                                  size_t offset,
                                  size_t size) { … }

namespace SkMeshes {
sk_sp<IndexBuffer> MakeIndexBuffer(const void* data, size_t size) { … }

sk_sp<IndexBuffer> CopyIndexBuffer(const sk_sp<IndexBuffer>& src) { … }

sk_sp<VertexBuffer> MakeVertexBuffer(const void* data, size_t size) { … }

sk_sp<VertexBuffer> CopyVertexBuffer(const sk_sp<VertexBuffer>& src) { … }
}  // namespace SkMeshes
chromium/third_party/skia/src/core/SkMesh.cpp
