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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef WEBGL_PROGRAM_H_
#define WEBGL_PROGRAM_H_
#include <map>
#include <set>
#include <string>
#include <vector>
#include "mozilla/LinkedList.h"
#include "mozilla/RefPtr.h"
#include "mozilla/WeakPtr.h"
#include "nsString.h"
#include "nsWrapperCache.h"
#include "WebGLContext.h"
#include "WebGLObjectModel.h"
namespace mozilla {
class ErrorResult;
class WebGLActiveInfo;
class WebGLProgram;
class WebGLShader;
class WebGLUniformLocation;
namespace dom {
template<typename> struct Nullable;
class OwningUnsignedLongOrUint32ArrayOrBoolean;
template<typename> class Sequence;
} // namespace dom
namespace webgl {
struct AttribInfo final
{
const RefPtr<WebGLActiveInfo> mActiveInfo;
const GLint mLoc; // -1 for active built-ins
const GLenum mBaseType;
};
struct UniformInfo final
{
typedef decltype(WebGLContext::mBound2DTextures) TexListT;
const RefPtr<WebGLActiveInfo> mActiveInfo;
const TexListT* const mSamplerTexList;
std::vector<uint32_t> mSamplerValues;
protected:
static const TexListT*
GetTexList(WebGLActiveInfo* activeInfo);
public:
explicit UniformInfo(WebGLActiveInfo* activeInfo);
};
struct UniformBlockInfo final
{
const nsCString mUserName;
const nsCString mMappedName;
const uint32_t mDataSize;
const IndexedBufferBinding* mBinding;
UniformBlockInfo(WebGLContext* webgl, const nsACString& userName,
const nsACString& mappedName, uint32_t dataSize)
: mUserName(userName)
, mMappedName(mappedName)
, mDataSize(dataSize)
, mBinding(&webgl->mIndexedUniformBufferBindings[0])
{ }
};
struct LinkedProgramInfo final
: public RefCounted<LinkedProgramInfo>
, public SupportsWeakPtr<LinkedProgramInfo>
{
friend class WebGLProgram;
MOZ_DECLARE_REFCOUNTED_TYPENAME(LinkedProgramInfo)
MOZ_DECLARE_WEAKREFERENCE_TYPENAME(LinkedProgramInfo)
//////
WebGLProgram* const prog;
const GLenum transformFeedbackBufferMode;
std::vector<AttribInfo> attribs;
std::vector<UniformInfo*> uniforms; // Owns its contents.
std::vector<UniformBlockInfo*> uniformBlocks; // Owns its contents.
std::vector<RefPtr<WebGLActiveInfo>> transformFeedbackVaryings;
// Needed for draw call validation.
std::vector<UniformInfo*> uniformSamplers;
mutable std::vector<size_t> componentsPerTFVert;
//////
// The maps for the frag data names to the translated names.
std::map<nsCString, const nsCString> fragDataMap;
explicit LinkedProgramInfo(WebGLProgram* prog);
~LinkedProgramInfo();
bool FindAttrib(const nsCString& userName, const AttribInfo** const out_info) const;
bool FindUniform(const nsCString& userName, nsCString* const out_mappedName,
size_t* const out_arrayIndex, UniformInfo** const out_info) const;
bool MapFragDataName(const nsCString& userName,
nsCString* const out_mappedName) const;
};
} // namespace webgl
class WebGLProgram final
: public nsWrapperCache
, public WebGLRefCountedObject<WebGLProgram>
, public LinkedListElement<WebGLProgram>
{
friend class WebGLTransformFeedback;
friend struct webgl::LinkedProgramInfo;
public:
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLProgram)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLProgram)
explicit WebGLProgram(WebGLContext* webgl);
void Delete();
// GL funcs
void AttachShader(WebGLShader* shader);
void BindAttribLocation(GLuint index, const nsAString& name);
void DetachShader(const WebGLShader* shader);
already_AddRefed<WebGLActiveInfo> GetActiveAttrib(GLuint index) const;
already_AddRefed<WebGLActiveInfo> GetActiveUniform(GLuint index) const;
void GetAttachedShaders(nsTArray<RefPtr<WebGLShader>>* const out) const;
GLint GetAttribLocation(const nsAString& name) const;
GLint GetFragDataLocation(const nsAString& name) const;
void GetProgramInfoLog(nsAString* const out) const;
JS::Value GetProgramParameter(GLenum pname) const;
GLuint GetUniformBlockIndex(const nsAString& name) const;
void GetActiveUniformBlockName(GLuint uniformBlockIndex, nsAString& name) const;
JS::Value GetActiveUniformBlockParam(GLuint uniformBlockIndex, GLenum pname) const;
JS::Value GetActiveUniformBlockActiveUniforms(JSContext* cx, GLuint uniformBlockIndex,
ErrorResult* const out_error) const;
already_AddRefed<WebGLUniformLocation> GetUniformLocation(const nsAString& name) const;
void GetUniformIndices(const dom::Sequence<nsString>& uniformNames,
dom::Nullable< nsTArray<GLuint> >& retval) const;
void UniformBlockBinding(GLuint uniformBlockIndex, GLuint uniformBlockBinding) const;
void LinkProgram();
bool UseProgram() const;
void ValidateProgram() const;
////////////////
bool FindAttribUserNameByMappedName(const nsACString& mappedName,
nsCString* const out_userName) const;
bool FindVaryingByMappedName(const nsACString& mappedName,
nsCString* const out_userName,
bool* const out_isArray) const;
bool FindUniformByMappedName(const nsACString& mappedName,
nsCString* const out_userName,
bool* const out_isArray) const;
bool UnmapUniformBlockName(const nsCString& mappedName,
nsCString* const out_userName) const;
void TransformFeedbackVaryings(const dom::Sequence<nsString>& varyings,
GLenum bufferMode);
already_AddRefed<WebGLActiveInfo> GetTransformFeedbackVarying(GLuint index) const;
void EnumerateFragOutputs(std::map<nsCString, const nsCString> &out_FragOutputs) const;
bool IsLinked() const { return mMostRecentLinkInfo; }
const webgl::LinkedProgramInfo* LinkInfo() const {
return mMostRecentLinkInfo.get();
}
WebGLContext* GetParentObject() const {
return mContext;
}
virtual JSObject* WrapObject(JSContext* js, JS::Handle<JSObject*> givenProto) override;
private:
~WebGLProgram();
void LinkAndUpdate();
bool ValidateForLink();
bool ValidateAfterTentativeLink(nsCString* const out_linkLog) const;
public:
const GLuint mGLName;
private:
WebGLRefPtr<WebGLShader> mVertShader;
WebGLRefPtr<WebGLShader> mFragShader;
size_t mNumActiveTFOs;
std::map<nsCString, GLuint> mNextLink_BoundAttribLocs;
std::vector<nsString> mNextLink_TransformFeedbackVaryings;
GLenum mNextLink_TransformFeedbackBufferMode;
nsCString mLinkLog;
RefPtr<const webgl::LinkedProgramInfo> mMostRecentLinkInfo;
};
} // namespace mozilla
#endif // WEBGL_PROGRAM_H_
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