/**
* OpenGL ES does not support glGetTexLevelParameteriv, but it is possible to
* probe whether a texture has a given size by crafting a dummy glTexSubImage()
* call.
*/
static bool
probeTextureLevelSizeOES(GLenum target, GLint level, const GLint size[3]) {
while (glGetError() != GL_NO_ERROR)
;
GLenum internalFormat = GL_RGBA;
GLenum type = GL_UNSIGNED_BYTE;
GLint dummy = 0;
switch (target) {
case GL_TEXTURE_2D:
case GL_TEXTURE_CUBE_MAP:
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
glTexSubImage2D(target, level, size[0], size[1], 0, 0, internalFormat, type, &dummy);
break;
case GL_TEXTURE_3D_OES:
glTexSubImage3DOES(target, level, size[0], size[1], size[2], 0, 0, 0, internalFormat, type, &dummy);
default:
assert(0);
return false;
}
GLenum error = glGetError();
if (0) {
std::cerr << "(" << size[0] << ", " << size[1] << ", " << size[2] << ") = " << enumToString(error) << "\n";
}
if (error == GL_NO_ERROR) {
return true;
}
while (glGetError() != GL_NO_ERROR)
;
return false;
}
void OGLESTexture3D::Unmap3D(uint32_t array_index, uint32_t level)
{
BOOST_ASSERT(0 == array_index);
KFL_UNUSED(array_index);
switch (last_tma_)
{
case TMA_Read_Only:
break;
case TMA_Write_Only:
case TMA_Read_Write:
{
GLint gl_internalFormat;
GLenum gl_format;
GLenum gl_type;
OGLESMapping::MappingFormat(gl_internalFormat, gl_format, gl_type, format_);
uint32_t const w = this->Width(level);
uint32_t const h = this->Height(level);
uint32_t const d = this->Depth(level);
OGLESRenderEngine& re = *checked_cast<OGLESRenderEngine*>(&Context::Instance().RenderFactoryInstance().RenderEngineInstance());
re.BindTexture(0, target_type_, texture_);
if (IsCompressedFormat(format_))
{
uint32_t const block_size = NumFormatBytes(format_) * 4;
GLsizei const image_size = ((w + 3) / 4) * ((h + 3) / 4) * d * block_size;
if (glloader_GLES_VERSION_3_0())
{
glCompressedTexSubImage3D(target_type_, level, 0, 0, 0,
w, h, d, gl_format, image_size, &tex_data_[level][0]);
}
else
{
glCompressedTexSubImage3DOES(target_type_, level, 0, 0, 0,
w, h, d, gl_format, image_size, &tex_data_[level][0]);
}
}
else
{
if (glloader_GLES_VERSION_3_0())
{
glTexSubImage3D(target_type_, level,
0, 0, 0, w, h, d, gl_format, gl_type, &tex_data_[level][0]);
}
else
{
glTexSubImage3DOES(target_type_, level,
0, 0, 0, w, h, d, gl_format, gl_type, &tex_data_[level][0]);
}
}
}
break;
default:
BOOST_ASSERT(false);
break;
}
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengles_OESTexture3D_nglTexSubImage3DOES__IIIIIIIIIIJ(JNIEnv *__env, jclass clazz, jint target, jint level, jint xoffset, jint yoffset, jint zoffset, jint width, jint height, jint depth, jint format, jint type, jlong pixelsAddress) {
glTexSubImage3DOESPROC glTexSubImage3DOES = (glTexSubImage3DOESPROC)tlsGetFunction(780);
intptr_t pixels = (intptr_t)pixelsAddress;
UNUSED_PARAM(clazz)
glTexSubImage3DOES(target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels);
}
