| /* |
| * Copyright 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef GLES_V2_CONTEXT_H |
| #define GLES_V2_CONTEXT_H |
| |
| #include <GLcommon/GLDispatch.h> |
| #include <GLcommon/GLEScontext.h> |
| #include <GLcommon/ShareGroup.h> |
| |
| #include <memory> |
| |
| // Extra desktop-specific OpenGL enums that we need to properly emulate OpenGL ES. |
| #define GL_FRAMEBUFFER_SRGB 0x8DB9 |
| #define GL_TEXTURE_CUBE_MAP_SEAMLESS 0x884F |
| #define GL_DEPTH_CLAMP 0x864F |
| |
| class ProgramData; |
| class TransformFeedbackData; |
| |
| class GLESv2Context : public GLEScontext{ |
| public: |
| virtual void init(); |
| static void initGlobal(EGLiface* eglIface); |
| GLESv2Context(int maj, int min, GlobalNameSpace* globalNameSpace, |
| android::base::Stream* stream, GlLibrary* glLib); |
| virtual ~GLESv2Context(); |
| |
| enum class DrawCallCmd { |
| Elements, |
| ElementsInstanced, |
| RangeElements, |
| Arrays, |
| ArraysInstanced, |
| }; |
| |
| void drawWithEmulations( |
| DrawCallCmd cmd, |
| GLenum mode, |
| GLint first, |
| GLsizei count, |
| GLenum type, |
| const GLvoid* indices, |
| GLsizei primcount, |
| GLuint start, |
| GLuint end); |
| |
| void setupArraysPointers(GLESConversionArrays& fArrs,GLint first,GLsizei count,GLenum type,const GLvoid* indices,bool direct, bool* needEnablingPostDraw); |
| void setVertexAttribDivisor(GLuint bindingindex, GLuint divisor); |
| void setVertexAttribBindingIndex(GLuint attribindex, GLuint bindingindex); |
| void setVertexAttribFormat(GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint reloffset, bool isInt = false); |
| void setBindSampler(GLuint unit, GLuint sampler); |
| int getMaxCombinedTexUnits() override; |
| int getMaxTexUnits() override; |
| |
| void setAttribValue(int idx, unsigned int count, const GLfloat* val); |
| // This whole att0 thing is about a incompatibility between GLES and OpenGL. |
| // GLES allows a vertex shader attribute to be in location 0 and have a |
| // current value, while OpenGL is not very clear about this, which results |
| // in each implementation doing something different. |
| void setAttribute0value(float x, float y, float z, float w); |
| bool needAtt0PreDrawValidation(); |
| void validateAtt0PreDraw(unsigned int count); |
| void validateAtt0PostDraw(void); |
| const float* getAtt0(void) const {return m_attribute0value;} |
| void setUseProgram(GLuint program, const ObjectDataPtr& programData); |
| GLuint getCurrentProgram() const; |
| ProgramData* getUseProgram(); |
| |
| virtual void onSave(android::base::Stream* stream) const override; |
| virtual ObjectDataPtr loadObject(NamedObjectType type, |
| ObjectLocalName localName, android::base::Stream* stream) const |
| override; |
| |
| virtual void initDefaultFBO( |
| GLint width, GLint height, GLint colorFormat, GLint depthstencilFormat, GLint multisamples, |
| GLuint* eglSurfaceRBColorId, GLuint* eglSurfaceRBDepthId, |
| GLuint readWidth, GLint readHeight, GLint readColorFormat, GLint readDepthStencilFormat, GLint readMultisamples, |
| GLuint* eglReadSurfaceRBColorId, GLuint* eglReadSurfaceRBDepthId) override; |
| |
| void initEmulatedBuffers(); |
| void initEmulatedVAO(); |
| |
| unsigned int getTransformFeedbackGlobalName(ObjectLocalName p_localName); |
| ObjectLocalName genTransformFeedbackName(ObjectLocalName p_localName = 0, |
| bool genLocal = 0); |
| void bindTransformFeedback(ObjectLocalName p_localName); |
| ObjectLocalName getTransformFeedbackBinding(); |
| bool hasBoundTransformFeedback(ObjectLocalName transformFeedback); |
| void deleteTransformFeedback(ObjectLocalName p_localName); |
| GLuint getIndexedBuffer(GLenum target, GLuint index) override; |
| void bindIndexedBuffer(GLenum target, |
| GLuint index, |
| GLuint buffer, |
| GLintptr offset, |
| GLsizeiptr size, |
| GLintptr stride = 0, |
| bool isBindBase = false) override; |
| void bindIndexedBuffer(GLenum target, GLuint index, GLuint buffer) override; |
| void unbindBuffer(GLuint buffer) override; |
| |
| static void setMaxGlesVersion(GLESVersion version); |
| |
| TransformFeedbackData* boundTransformFeedback(); |
| |
| void enableArr(GLenum arr, bool enable) override; |
| const GLESpointer* getPointer(GLenum arrType) override; |
| |
| protected: |
| void addVertexArrayObject(GLuint array) override; |
| |
| virtual void postLoadRestoreCtx(); |
| bool needConvert(GLESConversionArrays& fArrs,GLint first,GLsizei count,GLenum type,const GLvoid* indices,bool direct,GLESpointer* p,GLenum array_id); |
| private: |
| void setupArrWithDataSize(GLsizei datasize, const GLvoid* arr, |
| GLenum arrayType, GLenum dataType, |
| GLint size, GLsizei stride, GLboolean normalized, int index, bool isInt, GLuint ptrBufferName, bool* needEnablingPostDraw); |
| void initExtensionString(); |
| |
| float m_attribute0value[4] = {}; |
| bool m_attribute0valueChanged = true; |
| std::unique_ptr<GLfloat[]> m_att0Array = {}; |
| unsigned int m_att0ArrayLength = 0; |
| bool m_att0NeedsDisable = false; |
| |
| ObjectDataPtr m_useProgramData = {}; |
| std::unordered_map<GLuint, GLuint> m_bindSampler; |
| |
| std::vector<GLuint> m_emulatedClientVBOs; |
| GLuint m_emulatedClientIBO = 0; |
| |
| NameSpace* m_transformFeedbackNameSpace = nullptr; |
| ObjectLocalName m_bindTransformFeedback = 0; |
| bool m_transformFeedbackDeletePending = false; |
| }; |
| |
| #endif |