/*
* Copyright (C) 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 _GL_ENCODER_H_
#define _GL_ENCODER_H_

#include <vector>

#include "gl_enc.h"
#include "GLClientState.h"
#include "GLSharedGroup.h"
#include "ChecksumCalculator.h"

class GLEncoder : public gl_encoder_context_t {

public:
    GLEncoder(IOStream *stream, ChecksumCalculator* protocol);
    virtual ~GLEncoder();
    void setClientState(GLClientState *state) {
        m_state = state;
    }
    void setSharedGroup(GLSharedGroupPtr shared) {
        m_shared = shared;
        if (m_state && m_shared.Ptr())
            m_state->setTextureData(m_shared->getTextureData());
    }
    void flush() { m_stream->flush(); }
    size_t pixelDataSize(GLsizei width, GLsizei height, GLenum format, GLenum type, int pack);

    void setInitialized(){ m_initialized = true; };
    bool isInitialized(){ return m_initialized; };

    virtual void setError(GLenum error){ m_error = error; };
    virtual GLenum getError() { return m_error; };

    void override2DTextureTarget(GLenum target);
    void restore2DTextureTarget();

private:

    bool    m_initialized;
    GLClientState *m_state;
    GLSharedGroupPtr m_shared;
    GLenum  m_error;
    std::vector<char> m_fixedBuffer;
    GLint *m_compressedTextureFormats;
    GLint m_num_compressedTextureFormats;

    GLint *getCompressedTextureFormats();
    // original functions;
    glGetError_client_proc_t    m_glGetError_enc;
    glGetIntegerv_client_proc_t m_glGetIntegerv_enc;
    glGetFloatv_client_proc_t m_glGetFloatv_enc;
    glGetFixedv_client_proc_t m_glGetFixedv_enc;
    glGetBooleanv_client_proc_t m_glGetBooleanv_enc;
    glGetPointerv_client_proc_t m_glGetPointerv_enc;

    glPixelStorei_client_proc_t m_glPixelStorei_enc;
    glVertexPointer_client_proc_t m_glVertexPointer_enc;
    glNormalPointer_client_proc_t m_glNormalPointer_enc;
    glColorPointer_client_proc_t m_glColorPointer_enc;
    glPointSizePointerOES_client_proc_t m_glPointSizePointerOES_enc;
    glTexCoordPointer_client_proc_t m_glTexCoordPointer_enc;
    glClientActiveTexture_client_proc_t m_glClientActiveTexture_enc;
    glMatrixIndexPointerOES_client_proc_t m_glMatrixIndexPointerOES_enc;
    glWeightPointerOES_client_proc_t m_glWeightPointerOES_enc;

    glBindBuffer_client_proc_t m_glBindBuffer_enc;
    glBufferData_client_proc_t m_glBufferData_enc;
    glBufferSubData_client_proc_t m_glBufferSubData_enc;
    glDeleteBuffers_client_proc_t m_glDeleteBuffers_enc;
    
    glEnableClientState_client_proc_t m_glEnableClientState_enc;
    glDisableClientState_client_proc_t m_glDisableClientState_enc;
    glIsEnabled_client_proc_t m_glIsEnabled_enc;
    glDrawArrays_client_proc_t m_glDrawArrays_enc;
    glDrawElements_client_proc_t m_glDrawElements_enc;
    glFlush_client_proc_t m_glFlush_enc;

    glActiveTexture_client_proc_t m_glActiveTexture_enc;
    glBindTexture_client_proc_t m_glBindTexture_enc;
    glDeleteTextures_client_proc_t m_glDeleteTextures_enc;
    glDisable_client_proc_t m_glDisable_enc;
    glEnable_client_proc_t m_glEnable_enc;
    glGetTexParameterfv_client_proc_t m_glGetTexParameterfv_enc;
    glGetTexParameteriv_client_proc_t m_glGetTexParameteriv_enc;
    glGetTexParameterxv_client_proc_t m_glGetTexParameterxv_enc;
    glTexParameterf_client_proc_t m_glTexParameterf_enc;
    glTexParameterfv_client_proc_t m_glTexParameterfv_enc;
    glTexParameteri_client_proc_t m_glTexParameteri_enc;
    glTexParameterx_client_proc_t m_glTexParameterx_enc;
    glTexParameteriv_client_proc_t m_glTexParameteriv_enc;
    glTexParameterxv_client_proc_t m_glTexParameterxv_enc;

    glGenFramebuffersOES_client_proc_t m_glGenFramebuffersOES_enc;
    glDeleteFramebuffersOES_client_proc_t m_glDeleteFramebuffersOES_enc;
    glBindFramebufferOES_client_proc_t m_glBindFramebufferOES_enc;
    glFramebufferTexture2DOES_client_proc_t m_glFramebufferTexture2DOES_enc;
    glFramebufferTexture2DMultisampleIMG_client_proc_t m_glFramebufferTexture2DMultisampleIMG_enc;
    glGetFramebufferAttachmentParameterivOES_client_proc_t m_glGetFramebufferAttachmentParameterivOES_enc;

    // statics
    static GLenum s_glGetError(void * self);
    static void s_glGetIntegerv(void *self, GLenum pname, GLint *ptr);
    static void s_glGetBooleanv(void *self, GLenum pname, GLboolean *ptr);
    static void s_glGetFloatv(void *self, GLenum pname, GLfloat *ptr);
    static void s_glGetFixedv(void *self, GLenum pname, GLfixed *ptr);
    static void s_glGetPointerv(void *self, GLenum pname, GLvoid **params);

    static void s_glFlush(void * self);
    static const GLubyte * s_glGetString(void *self, GLenum name);
    static void s_glVertexPointer(void *self, int size, GLenum type, GLsizei stride, const void *data);
    static void s_glNormalPointer(void *self, GLenum type, GLsizei stride, const void *data);
    static void s_glColorPointer(void *self, int size, GLenum type, GLsizei stride, const void *data);
    static void s_glPointSizePointerOES(void *self, GLenum type, GLsizei stride, const void *data);
    static void s_glClientActiveTexture(void *self, GLenum texture);
    static void s_glTexCoordPointer(void *self, int size, GLenum type, GLsizei stride, const void *data);
    static void s_glMatrixIndexPointerOES(void *self, int size, GLenum type, GLsizei stride, const void * data);
    static void s_glWeightPointerOES(void *self, int size, GLenum type, GLsizei stride, const void * data);
    static void s_glDisableClientState(void *self, GLenum state);
    static void s_glEnableClientState(void *self, GLenum state);
    static GLboolean s_glIsEnabled(void *self, GLenum cap);
    static void s_glBindBuffer(void *self, GLenum target, GLuint id);
    static void s_glBufferData(void *self, GLenum target, GLsizeiptr size, const GLvoid * data, GLenum usage);
    static void s_glBufferSubData(void *self, GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid * data);
    static void s_glDeleteBuffers(void *self, GLsizei n, const GLuint * buffers);

    static void s_glDrawArrays(void *self, GLenum mode, GLint first, GLsizei count);
    static void s_glDrawElements(void *self, GLenum mode, GLsizei count, GLenum type, const void *indices);
    static void s_glPixelStorei(void *self, GLenum param, GLint value);

    static void s_glFinish(void *self);
    void sendVertexData(unsigned first, unsigned count);

    static void s_glActiveTexture(void* self, GLenum texture);
    static void s_glBindTexture(void* self, GLenum target, GLuint texture);
    static void s_glDeleteTextures(void* self, GLsizei n, const GLuint* textures);
    static void s_glDisable(void* self, GLenum cap);
    static void s_glEnable(void* self, GLenum cap);
    static void s_glGetTexParameterfv(void* self, GLenum target, GLenum pname, GLfloat* params);
    static void s_glGetTexParameteriv(void* self, GLenum target, GLenum pname, GLint* params);
    static void s_glGetTexParameterxv(void* self, GLenum target, GLenum pname, GLfixed* params);
    static void s_glTexParameterf(void* self, GLenum target, GLenum pname, GLfloat param);
    static void s_glTexParameterfv(void* self, GLenum target, GLenum pname, const GLfloat* params);
    static void s_glTexParameteri(void* self, GLenum target, GLenum pname, GLint param);
    static void s_glTexParameterx(void* self, GLenum target, GLenum pname, GLfixed param);
    static void s_glTexParameteriv(void* self, GLenum target, GLenum pname, const GLint* params);
    static void s_glTexParameterxv(void* self, GLenum target, GLenum pname, const GLfixed* params);

    static void s_glGenFramebuffersOES(void* self, GLsizei n, GLuint* framebuffers);
    static void s_glDeleteFramebuffersOES(void* self, GLsizei n, const GLuint* framebuffers);
    static void s_glBindFramebufferOES(void* self, GLenum target, GLuint framebuffer);
    static void s_glFramebufferTexture2DOES(void* self, GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
    static void s_glFramebufferTexture2DMultisampleIMG(void* self, GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLsizei samples);
    static void s_glGetFramebufferAttachmentParameterivOES(void* self, GLenum target, GLenum attachment, GLenum pname, GLint* params);
    static void s_glReadnPixelsEXT(void* self, GLint x, GLint y, GLsizei width,
            GLsizei height, GLenum format, GLenum type, GLsizei bufSize,
            GLvoid* pixels);

public:
    glEGLImageTargetTexture2DOES_client_proc_t m_glEGLImageTargetTexture2DOES_enc;

};
#endif