xref: /development/tools/emulator/opengl/system/GLESv2_enc/GL2Encoder.cpp

/*
* 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.
*/

#include "GL2Encoder.h"
#include <assert.h>
#include <ctype.h>

#ifndef MIN
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif

static GLubyte *gVendorString= (GLubyte *) "Android";
static GLubyte *gRendererString= (GLubyte *) "Android HW-GLES 2.0";
static GLubyte *gVersionString= (GLubyte *) "OpenGL ES 2.0";
static GLubyte *gExtensionsString= (GLubyte *) ""; // no extensions at this point;

#define SET_ERROR_IF(condition,err) if((condition)) {                            \
        ALOGE("%s:%s:%d GL error 0x%x\n", __FILE__, __FUNCTION__, __LINE__, err); \
        ctx->setError(err);                                    \
        return;                                                  \
    }


#define RET_AND_SET_ERROR_IF(condition,err,ret) if((condition)) {                \
        ALOGE("%s:%s:%d GL error 0x%x\n", __FILE__, __FUNCTION__, __LINE__, err); \
        ctx->setError(err);                                    \
        return ret;                                              \
    }


GL2Encoder::GL2Encoder(IOStream *stream) : gl2_encoder_context_t(stream)
{
    m_initialized = false;
    m_state = NULL;
    m_error = GL_NO_ERROR;
    m_num_compressedTextureFormats = 0;
    m_compressedTextureFormats = NULL;
    //overrides
    m_glFlush_enc = set_glFlush(s_glFlush);
    m_glPixelStorei_enc = set_glPixelStorei(s_glPixelStorei);
    m_glGetString_enc = set_glGetString(s_glGetString);
    m_glBindBuffer_enc = set_glBindBuffer(s_glBindBuffer);
    m_glBufferData_enc = set_glBufferData(s_glBufferData);
    m_glBufferSubData_enc = set_glBufferSubData(s_glBufferSubData);
    m_glDeleteBuffers_enc = set_glDeleteBuffers(s_glDeleteBuffers);
    m_glDrawArrays_enc = set_glDrawArrays(s_glDrawArrays);
    m_glDrawElements_enc = set_glDrawElements(s_glDrawElements);
    m_glGetIntegerv_enc = set_glGetIntegerv(s_glGetIntegerv);
    m_glGetFloatv_enc = set_glGetFloatv(s_glGetFloatv);
    m_glGetBooleanv_enc = set_glGetBooleanv(s_glGetBooleanv);
    m_glVertexAttribPointer_enc = set_glVertexAttribPointer(s_glVertexAtrribPointer);
    m_glEnableVertexAttribArray_enc = set_glEnableVertexAttribArray(s_glEnableVertexAttribArray);
    m_glDisableVertexAttribArray_enc = set_glDisableVertexAttribArray(s_glDisableVertexAttribArray);
    m_glGetVertexAttribiv_enc = set_glGetVertexAttribiv(s_glGetVertexAttribiv);
    m_glGetVertexAttribfv_enc = set_glGetVertexAttribfv(s_glGetVertexAttribfv);
    m_glGetVertexAttribPointerv = set_glGetVertexAttribPointerv(s_glGetVertexAttribPointerv);
    set_glShaderSource(s_glShaderSource);
    set_glFinish(s_glFinish);
    m_glGetError_enc = set_glGetError(s_glGetError);
    m_glLinkProgram_enc = set_glLinkProgram(s_glLinkProgram);
    m_glDeleteProgram_enc = set_glDeleteProgram(s_glDeleteProgram);
    m_glGetUniformiv_enc = set_glGetUniformiv(s_glGetUniformiv);
    m_glGetUniformfv_enc = set_glGetUniformfv(s_glGetUniformfv);
    m_glCreateProgram_enc = set_glCreateProgram(s_glCreateProgram);
    m_glCreateShader_enc = set_glCreateShader(s_glCreateShader);
    m_glDeleteShader_enc = set_glDeleteShader(s_glDeleteShader);
    m_glAttachShader_enc = set_glAttachShader(s_glAttachShader);
    m_glDetachShader_enc = set_glDetachShader(s_glDetachShader);
    m_glGetUniformLocation_enc = set_glGetUniformLocation(s_glGetUniformLocation);
    m_glUseProgram_enc = set_glUseProgram(s_glUseProgram);

    m_glUniform1f_enc = set_glUniform1f(s_glUniform1f);
    m_glUniform1fv_enc = set_glUniform1fv(s_glUniform1fv);
    m_glUniform1i_enc = set_glUniform1i(s_glUniform1i);
    m_glUniform1iv_enc = set_glUniform1iv(s_glUniform1iv);
    m_glUniform2f_enc = set_glUniform2f(s_glUniform2f);
    m_glUniform2fv_enc = set_glUniform2fv(s_glUniform2fv);
    m_glUniform2i_enc = set_glUniform2i(s_glUniform2i);
    m_glUniform2iv_enc = set_glUniform2iv(s_glUniform2iv);
    m_glUniform3f_enc = set_glUniform3f(s_glUniform3f);
    m_glUniform3fv_enc = set_glUniform3fv(s_glUniform3fv);
    m_glUniform3i_enc = set_glUniform3i(s_glUniform3i);
    m_glUniform3iv_enc = set_glUniform3iv(s_glUniform3iv);
    m_glUniform4f_enc = set_glUniform4f(s_glUniform4f);
    m_glUniform4fv_enc = set_glUniform4fv(s_glUniform4fv);
    m_glUniform4i_enc = set_glUniform4i(s_glUniform4i);
    m_glUniform4iv_enc = set_glUniform4iv(s_glUniform4iv);
    m_glUniformMatrix2fv_enc = set_glUniformMatrix2fv(s_glUniformMatrix2fv);
    m_glUniformMatrix3fv_enc = set_glUniformMatrix3fv(s_glUniformMatrix3fv);
    m_glUniformMatrix4fv_enc = set_glUniformMatrix4fv(s_glUniformMatrix4fv);

    m_glActiveTexture_enc = set_glActiveTexture(s_glActiveTexture);
    m_glBindTexture_enc = set_glBindTexture(s_glBindTexture);
    m_glDeleteTextures_enc = set_glDeleteTextures(s_glDeleteTextures);
    m_glGetTexParameterfv_enc = set_glGetTexParameterfv(s_glGetTexParameterfv);
    m_glGetTexParameteriv_enc = set_glGetTexParameteriv(s_glGetTexParameteriv);
    m_glTexParameterf_enc = set_glTexParameterf(s_glTexParameterf);
    m_glTexParameterfv_enc = set_glTexParameterfv(s_glTexParameterfv);
    m_glTexParameteri_enc = set_glTexParameteri(s_glTexParameteri);
    m_glTexParameteriv_enc = set_glTexParameteriv(s_glTexParameteriv);
}

GL2Encoder::~GL2Encoder()
{
    delete m_compressedTextureFormats;
}

GLenum GL2Encoder::s_glGetError(void * self)
{
    GL2Encoder *ctx = (GL2Encoder *)self;
    GLenum err = ctx->getError();
    if(err != GL_NO_ERROR) {
        ctx->setError(GL_NO_ERROR);
        return err;
    }

    return ctx->m_glGetError_enc(self);

}

void GL2Encoder::s_glFlush(void *self)
{
    GL2Encoder *ctx = (GL2Encoder *) self;
    ctx->m_glFlush_enc(self);
    ctx->m_stream->flush();
}

const GLubyte *GL2Encoder::s_glGetString(void *self, GLenum name)
{
    GLubyte *retval =  (GLubyte *) "";
    switch(name) {
    case GL_VENDOR:
        retval = gVendorString;
        break;
    case GL_RENDERER:
        retval = gRendererString;
        break;
    case GL_VERSION:
        retval = gVersionString;
        break;
    case GL_EXTENSIONS:
        retval = gExtensionsString;
        break;
    }
    return retval;
}

void GL2Encoder::s_glPixelStorei(void *self, GLenum param, GLint value)
{
    GL2Encoder *ctx = (GL2Encoder *)self;
    ctx->m_glPixelStorei_enc(ctx, param, value);
    assert(ctx->m_state != NULL);
    ctx->m_state->setPixelStore(param, value);
}


void GL2Encoder::s_glBindBuffer(void *self, GLenum target, GLuint id)
{
    GL2Encoder *ctx = (GL2Encoder *) self;
    assert(ctx->m_state != NULL);
    ctx->m_state->bindBuffer(target, id);
    // TODO set error state if needed;
    ctx->m_glBindBuffer_enc(self, target, id);
}

void GL2Encoder::s_glBufferData(void * self, GLenum target, GLsizeiptr size, const GLvoid * data, GLenum usage)
{
    GL2Encoder *ctx = (GL2Encoder *) self;
    GLuint bufferId = ctx->m_state->getBuffer(target);
    SET_ERROR_IF(bufferId==0, GL_INVALID_OPERATION);
    SET_ERROR_IF(size<0, GL_INVALID_VALUE);

    ctx->m_shared->updateBufferData(bufferId, size, (void*)data);
    ctx->m_glBufferData_enc(self, target, size, data, usage);
}

void GL2Encoder::s_glBufferSubData(void * self, GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid * data)
{
    GL2Encoder *ctx = (GL2Encoder *) self;
    GLuint bufferId = ctx->m_state->getBuffer(target);
    SET_ERROR_IF(bufferId==0, GL_INVALID_OPERATION);

    GLenum res = ctx->m_shared->subUpdateBufferData(bufferId, offset, size, (void*)data);
    SET_ERROR_IF(res, res);

    ctx->m_glBufferSubData_enc(self, target, offset, size, data);
}

void GL2Encoder::s_glDeleteBuffers(void * self, GLsizei n, const GLuint * buffers)
{
    GL2Encoder *ctx = (GL2Encoder *) self;
    SET_ERROR_IF(n<0, GL_INVALID_VALUE);
    for (int i=0; i<n; i++) {
        ctx->m_shared->deleteBufferData(buffers[i]);
        ctx->m_glDeleteBuffers_enc(self,1,&buffers[i]);
    }
}

void GL2Encoder::s_glVertexAtrribPointer(void *self, GLuint indx, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid * ptr)
{
    GL2Encoder *ctx = (GL2Encoder *)self;
    assert(ctx->m_state != NULL);