EXTERN_C_ENTER
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_EXTTextureBufferObject_glTexBufferEXT(JNIEnv *__env, jclass clazz, jint target, jint internalformat, jint buffer) {
glTexBufferEXTPROC glTexBufferEXT = (glTexBufferEXTPROC)tlsGetFunction(1814);
UNUSED_PARAM(clazz)
glTexBufferEXT(target, internalformat, buffer);
}
/* void glTexBufferEXT ( GLenum target, GLenum internalformat, GLuint buffer ) */
static void
android_glTexBufferEXT__III
(JNIEnv *_env, jobject _this, jint target, jint internalformat, jint buffer) {
glTexBufferEXT(
(GLenum)target,
(GLenum)internalformat,
(GLuint)buffer
);
}
void initGLBuffers()
{
if (pbo)
{
// delete old buffer
checkCudaErrors(cudaGraphicsUnregisterResource(cuda_pbo_resource));
glDeleteBuffersARB(1, &pbo);
}
// create pixel buffer object for display
glGenBuffersARB(1, &pbo);
glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbo);
glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, width*height*sizeof(uchar4), 0, GL_STREAM_DRAW_ARB);
glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
checkCudaErrors(cudaGraphicsGLRegisterBuffer(&cuda_pbo_resource, pbo,
cudaGraphicsMapFlagsWriteDiscard));
#if USE_BUFFER_TEX
// create buffer texture, attach to pbo
if (bufferTex)
{
glDeleteTextures(1, &bufferTex);
}
glGenTextures(1, &bufferTex);
glBindTexture(GL_TEXTURE_BUFFER_EXT, bufferTex);
glTexBufferEXT(GL_TEXTURE_BUFFER_EXT, GL_RGBA8, pbo);
glBindTexture(GL_TEXTURE_BUFFER_EXT, 0);
#else
// create texture for display
if (displayTex)
{
glDeleteTextures(1, &displayTex);
}
glGenTextures(1, &displayTex);
glBindTexture(GL_TEXTURE_TYPE, displayTex);
glTexImage2D(GL_TEXTURE_TYPE, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_TYPE, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_TYPE, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glBindTexture(GL_TEXTURE_TYPE, 0);
#endif
// calculate new grid size
gridSize = dim3(iDivUp(width, blockSize.x), iDivUp(height, blockSize.y));
}
void BRDFMeasuredMERL::initGL()
{
if( initializedGL )
return;
// create buffer object
glGenBuffers(1, &tbo);
glBindBuffer(GL_TEXTURE_BUFFER_EXT, tbo);
// initialize buffer object
unsigned int numBytes = numBRDFSamples * 3 * sizeof(float);
//printf( "size = %d bytes (%f megs)\n", numBytes, float(numBytes) / 1048576.0f );
glBufferData( GL_TEXTURE_BUFFER_EXT, numBytes, 0, GL_STATIC_DRAW );
//tex
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_BUFFER_EXT, tex);
glTexBufferEXT(GL_TEXTURE_BUFFER_EXT, GL_INTENSITY32F_ARB, tbo);
glBindBuffer(GL_TEXTURE_BUFFER_EXT, 0);
glBindBuffer(GL_TEXTURE_BUFFER_EXT, tbo);
float* p = (float*)glMapBuffer( GL_TEXTURE_BUFFER_EXT, GL_WRITE_ONLY );
memcpy( p, brdfData, numBytes );
glUnmapBuffer(GL_TEXTURE_BUFFER_EXT);
glBindBuffer(GL_TEXTURE_BUFFER_EXT, 0);
delete[] brdfData;
brdfData = NULL;
initializedGL = true;
}
void OGLESGraphicsBuffer::CreateHWResource(void const * data)
{
BOOST_ASSERT(0 == vb_);
glGenBuffers(1, &vb_);
GLbitfield flags = 0;
if (glloader_GLES_EXT_buffer_storage())
{
if (BU_Dynamic == usage_)
{
flags |= GL_DYNAMIC_STORAGE_BIT_EXT;
}
}
if (access_hint_ & EAH_CPU_Read)
{
flags |= GL_MAP_READ_BIT;
}
else if (access_hint_ & EAH_CPU_Write)
{
flags |= GL_MAP_WRITE_BIT;
}
OGLESRenderEngine& re = *checked_cast<OGLESRenderEngine*>(&Context::Instance().RenderFactoryInstance().RenderEngineInstance());
re.BindBuffer(target_, vb_);
if (glloader_GLES_EXT_buffer_storage())
{
glBufferStorageEXT(target_, static_cast<GLsizeiptr>(size_in_byte_), data, flags);
}
else
{
glBufferData(target_,
static_cast<GLsizeiptr>(size_in_byte_), data,
(BU_Static == usage_) ? GL_STATIC_DRAW : GL_DYNAMIC_DRAW);
}
if (data != nullptr)
{
buf_data_.assign(static_cast<uint8_t const *>(data),
static_cast<uint8_t const *>(data) + size_in_byte_);
}
else
{
buf_data_.resize(size_in_byte_);
}
if ((access_hint_ & EAH_GPU_Read) && (fmt_as_shader_res_ != EF_Unknown))
{
GLint internal_fmt;
GLenum gl_fmt;
GLenum gl_type;
OGLESMapping::MappingFormat(internal_fmt, gl_fmt, gl_type, fmt_as_shader_res_);
glGenTextures(1, &tex_);
// TODO: It could affect the texture binding cache in OGLESRenderEngine
if (glloader_GLES_VERSION_3_2())
{
glBindTexture(GL_TEXTURE_BUFFER, tex_);
glTexBuffer(GL_TEXTURE_BUFFER, internal_fmt, vb_);
glBindTexture(GL_TEXTURE_BUFFER, 0);
}
else if (glloader_GLES_OES_texture_buffer())
{
glBindTexture(GL_TEXTURE_BUFFER_OES, tex_);
glTexBufferOES(GL_TEXTURE_BUFFER_OES, internal_fmt, vb_);
glBindTexture(GL_TEXTURE_BUFFER_OES, 0);
}
else if (glloader_GLES_EXT_texture_buffer())
{
glBindTexture(GL_TEXTURE_BUFFER_EXT, tex_);
glTexBufferEXT(GL_TEXTURE_BUFFER_EXT, internal_fmt, vb_);
glBindTexture(GL_TEXTURE_BUFFER_EXT, 0);
}
}
}
