void GLES2Texture::loadImpl()
{
if (mUsage & TU_RENDERTARGET)
{
createRenderTexture();
return;
}
// Now the only copy is on the stack and will be cleaned in case of
// exceptions being thrown from _loadImages
LoadedImages loadedImages = mLoadedImages;
mLoadedImages.setNull();
// Call internal _loadImages, not loadImage since that's external and
// will determine load status etc again
ConstImagePtrList imagePtrs;
for (size_t i = 0; i < loadedImages->size(); ++i)
{
imagePtrs.push_back(&(*loadedImages)[i]);
}
_loadImages(imagePtrs);
if((mUsage & TU_AUTOMIPMAP) &&
mNumRequestedMipmaps && mMipmapsHardwareGenerated)
{
OGRE_CHECK_GL_ERROR(glGenerateMipmap(getGLES2TextureTarget()));
}
}
void GLES2Texture::_createSurfaceList()
{
mSurfaceList.clear();
// For all faces and mipmaps, store surfaces as HardwarePixelBufferSharedPtr
bool wantGeneratedMips = (mUsage & TU_AUTOMIPMAP)!=0;
// Do mipmapping in software? (uses GLU) For some cards, this is still needed. Of course,
// only when mipmap generation is desired.
bool doSoftware = wantGeneratedMips && !mMipmapsHardwareGenerated && getNumMipmaps();
for (size_t face = 0; face < getNumFaces(); face++)
{
uint32 width = mWidth;
uint32 height = mHeight;
uint32 depth = mDepth;
for (uint8 mip = 0; mip <= getNumMipmaps(); mip++)
{
GLES2HardwarePixelBuffer *buf = OGRE_NEW GLES2TextureBuffer(mName,
getGLES2TextureTarget(),
mTextureID,
width, height, depth,
GLES2PixelUtil::getClosestGLInternalFormat(mFormat, mHwGamma),
GLES2PixelUtil::getGLOriginDataType(mFormat),
static_cast<GLint>(face),
mip,
static_cast<HardwareBuffer::Usage>(mUsage),
doSoftware && mip == 0, mHwGamma, mFSAA);
mSurfaceList.push_back(HardwarePixelBufferSharedPtr(buf));
// Check for error
if (buf->getWidth() == 0 ||
buf->getHeight() == 0 ||
buf->getDepth() == 0)
{
OGRE_EXCEPT(
Exception::ERR_RENDERINGAPI_ERROR,
"Zero sized texture surface on texture " + getName() +
" face " + StringConverter::toString(face) +
" mipmap " + StringConverter::toString(mip) +
". The GL driver probably refused to create the texture.",
"GLES2Texture::_createSurfaceList");
}
}
}
}
void GLES2Texture::_createGLTexResource()
{
if(!Root::getSingleton().getRenderSystem()->getCapabilities()->hasCapability(RSC_NON_POWER_OF_2_TEXTURES) ||
(Root::getSingleton().getRenderSystem()->getCapabilities()->getNonPOW2TexturesLimited() && mNumRequestedMipmaps > 0))
{
// Convert to nearest power-of-two size if required
mWidth = GLES2PixelUtil::optionalPO2(mWidth);
mHeight = GLES2PixelUtil::optionalPO2(mHeight);
mDepth = GLES2PixelUtil::optionalPO2(mDepth);
}
// Adjust format if required
mFormat = TextureManager::getSingleton().getNativeFormat(mTextureType, mFormat, mUsage);
GLenum texTarget = getGLES2TextureTarget();
// Check requested number of mipmaps
size_t maxMips = GLES2PixelUtil::getMaxMipmaps(mWidth, mHeight, mDepth, mFormat);
if(PixelUtil::isCompressed(mFormat) && (mNumMipmaps == 0))
mNumRequestedMipmaps = 0;
mNumMipmaps = mNumRequestedMipmaps;
if (mNumMipmaps > maxMips)
mNumMipmaps = maxMips;
// Generate texture name
OGRE_CHECK_GL_ERROR(glGenTextures(1, &mTextureID));
// Set texture type
mGLSupport.getStateCacheManager()->bindGLTexture(texTarget, mTextureID);
// If we can do automip generation and the user desires this, do so
mMipmapsHardwareGenerated =
Root::getSingleton().getRenderSystem()->getCapabilities()->hasCapability(RSC_AUTOMIPMAP) && !PixelUtil::isCompressed(mFormat);
if(!Bitwise::isPO2(mWidth) || !Bitwise::isPO2(mHeight))
mMipmapsHardwareGenerated = false;
// glGenerateMipmap require all mip levels to be prepared. So override how many this texture has.
if((mUsage & TU_AUTOMIPMAP) && mMipmapsHardwareGenerated && mNumRequestedMipmaps)
mNumMipmaps = maxMips;
if(getGLES2SupportRef()->checkExtension("GL_APPLE_texture_max_level") || gleswIsSupported(3, 0))
mGLSupport.getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_MAX_LEVEL_APPLE, mNumRequestedMipmaps ? mNumMipmaps + 1 : 0);
// Set some misc default parameters, these can of course be changed later
mGLSupport.getStateCacheManager()->setTexParameteri(texTarget,
GL_TEXTURE_MIN_FILTER, ((mUsage & TU_AUTOMIPMAP) && mNumRequestedMipmaps) ? GL_NEAREST_MIPMAP_NEAREST : GL_NEAREST);
mGLSupport.getStateCacheManager()->setTexParameteri(texTarget,
GL_TEXTURE_MAG_FILTER, GL_NEAREST);
mGLSupport.getStateCacheManager()->setTexParameteri(texTarget,
GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
mGLSupport.getStateCacheManager()->setTexParameteri(texTarget,
GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
// Set up texture swizzling
#if OGRE_NO_GLES3_SUPPORT == 0
if(gleswIsSupported(3, 0))
{
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_R, GL_RED));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_G, GL_GREEN));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_B, GL_BLUE));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_A, GL_ALPHA));
if(mFormat == PF_L8 || mFormat == PF_L16)
{
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_R, GL_RED));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_G, GL_RED));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_B, GL_RED));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_A, GL_RED));
}
}
#endif
// Allocate internal buffer so that glTexSubImageXD can be used
// Internal format
GLenum format = GLES2PixelUtil::getGLOriginFormat(mFormat);
GLenum internalformat = GLES2PixelUtil::getClosestGLInternalFormat(mFormat, mHwGamma);
uint32 width = mWidth;
uint32 height = mHeight;
uint32 depth = mDepth;
if (PixelUtil::isCompressed(mFormat))
{
// Compressed formats
GLsizei size = static_cast<GLsizei>(PixelUtil::getMemorySize(mWidth, mHeight, mDepth, mFormat));
// Provide temporary buffer filled with zeroes as glCompressedTexImageXD does not
// accept a 0 pointer like normal glTexImageXD
// Run through this process for every mipmap to pregenerate mipmap pyramid
uint8* tmpdata = new uint8[size];
memset(tmpdata, 0, size);
for (GLint mip = 0; mip <= mNumMipmaps; mip++)
{
#if OGRE_DEBUG_MODE
LogManager::getSingleton().logMessage("GLES2Texture::create - Mip: " + StringConverter::toString(mip) +
" Width: " + StringConverter::toString(width) +
" Height: " + StringConverter::toString(height) +
" Internal Format: " + StringConverter::toString(internalformat, 0, ' ', std::ios::hex) +
" Format: " + StringConverter::toString(format, 0, ' ', std::ios::hex)
);
#endif
size = static_cast<GLsizei>(PixelUtil::getMemorySize(width, height, depth, mFormat));
switch(mTextureType)
{
case TEX_TYPE_1D:
case TEX_TYPE_2D:
OGRE_CHECK_GL_ERROR(glCompressedTexImage2D(GL_TEXTURE_2D,
mip,
internalformat,
width, height,
0,
size,
tmpdata));
break;
case TEX_TYPE_CUBE_MAP:
for(int face = 0; face < 6; face++) {
OGRE_CHECK_GL_ERROR(glCompressedTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, mip, internalformat,
width, height, 0,
size, tmpdata));
}
break;
#if OGRE_NO_GLES3_SUPPORT == 0
case TEX_TYPE_2D_ARRAY:
case TEX_TYPE_3D:
glCompressedTexImage3D(getGLES2TextureTarget(), mip, format,
width, height, depth, 0,
size, tmpdata);
break;
#endif
default:
break;
};
if(width > 1)
{
width = width / 2;
}
if(height > 1)
{
height = height / 2;
}
if(depth > 1 && mTextureType != TEX_TYPE_2D_ARRAY)
{
depth = depth / 2;
}
}
delete [] tmpdata;
}
else
{
#if OGRE_NO_GLES3_SUPPORT == 0
#if OGRE_DEBUG_MODE
LogManager::getSingleton().logMessage("GLES2Texture::create - Name: " + mName +
" ID: " + StringConverter::toString(mTextureID) +
" Width: " + StringConverter::toString(width) +
" Height: " + StringConverter::toString(height) +
" Internal Format: " + StringConverter::toString(internalformat, 0, ' ', std::ios::hex));
#endif
switch(mTextureType)
{
case TEX_TYPE_1D:
case TEX_TYPE_2D:
case TEX_TYPE_2D_RECT:
OGRE_CHECK_GL_ERROR(glTexStorage2D(GL_TEXTURE_2D, GLsizei(mNumMipmaps+1), internalformat, GLsizei(width), GLsizei(height)));
break;
case TEX_TYPE_CUBE_MAP:
OGRE_CHECK_GL_ERROR(glTexStorage2D(GL_TEXTURE_CUBE_MAP, GLsizei(mNumMipmaps+1), internalformat, GLsizei(width), GLsizei(height)));
break;
case TEX_TYPE_2D_ARRAY:
OGRE_CHECK_GL_ERROR(glTexStorage3D(GL_TEXTURE_2D_ARRAY, GLsizei(mNumMipmaps+1), internalformat, GLsizei(width), GLsizei(height), GLsizei(depth)));
break;
case TEX_TYPE_3D:
OGRE_CHECK_GL_ERROR(glTexStorage3D(GL_TEXTURE_3D, GLsizei(mNumMipmaps+1), internalformat, GLsizei(width), GLsizei(height), GLsizei(depth)));
break;
}
#else
GLenum datatype = GLES2PixelUtil::getGLOriginDataType(mFormat);
// Run through this process to pregenerate mipmap pyramid
for(GLint mip = 0; mip <= mNumMipmaps; mip++)
{
#if OGRE_DEBUG_MODE
LogManager::getSingleton().logMessage("GLES2Texture::create - Mip: " + StringConverter::toString(mip) +
" Name: " + mName +
" ID: " + StringConverter::toString(mTextureID) +
" Width: " + StringConverter::toString(width) +
" Height: " + StringConverter::toString(height) +
" Internal Format: " + StringConverter::toString(internalformat, 0, ' ', std::ios::hex) +
" Format: " + StringConverter::toString(format, 0, ' ', std::ios::hex) +
" Datatype: " + StringConverter::toString(datatype, 0, ' ', std::ios::hex)
);
#endif
// Normal formats
switch(mTextureType)
{
case TEX_TYPE_1D:
case TEX_TYPE_2D:
#if OGRE_PLATFORM == OGRE_PLATFORM_NACL
if(internalformat != format)
{
LogManager::getSingleton().logMessage("glTexImage2D: format != internalFormat, "
"format=" + StringConverter::toString(format) +
", internalFormat=" + StringConverter::toString(internalformat));
}
#endif
OGRE_CHECK_GL_ERROR(glTexImage2D(GL_TEXTURE_2D,
mip,
internalformat,
width, height,
0,
format,
datatype, 0));
break;
case TEX_TYPE_CUBE_MAP:
for(int face = 0; face < 6; face++) {
OGRE_CHECK_GL_ERROR(glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, mip, internalformat,
width, height, 0,
format, datatype, 0));
}
break;
default:
break;
};
if (width > 1)
{
width = Bitwise::firstPO2From(width / 2);
}
if (height > 1)
{
height = Bitwise::firstPO2From(height / 2);
}
}
#endif
}
}
// Creation / loading methods
void GLES2Texture::createInternalResourcesImpl(void)
{
// Convert to nearest power-of-two size if required
mWidth = GLES2PixelUtil::optionalPO2(mWidth);
mHeight = GLES2PixelUtil::optionalPO2(mHeight);
mDepth = GLES2PixelUtil::optionalPO2(mDepth);
// Adjust format if required
mFormat = TextureManager::getSingleton().getNativeFormat(mTextureType, mFormat, mUsage);
// Check requested number of mipmaps
size_t maxMips = GLES2PixelUtil::getMaxMipmaps(mWidth, mHeight, mDepth, mFormat);
if(PixelUtil::isCompressed(mFormat) && (mNumMipmaps == 0))
mNumRequestedMipmaps = 0;
mNumMipmaps = mNumRequestedMipmaps;
if (mNumMipmaps > maxMips)
mNumMipmaps = maxMips;
// Generate texture name
glGenTextures(1, &mTextureID);
GL_CHECK_ERROR;
// Set texture type
glBindTexture(getGLES2TextureTarget(), mTextureID);
GL_CHECK_ERROR;
// If we can do automip generation and the user desires this, do so
mMipmapsHardwareGenerated =
Root::getSingleton().getRenderSystem()->getCapabilities()->hasCapability(RSC_AUTOMIPMAP) && !PixelUtil::isCompressed(mFormat);
#if GL_APPLE_texture_max_level && OGRE_PLATFORM != OGRE_PLATFORM_NACL
glTexParameteri( getGLES2TextureTarget(), GL_TEXTURE_MAX_LEVEL_APPLE, (mMipmapsHardwareGenerated && (mUsage & TU_AUTOMIPMAP)) ? maxMips : mNumMipmaps );
#endif
// Set some misc default parameters, these can of course be changed later
glTexParameteri(getGLES2TextureTarget(),
GL_TEXTURE_MIN_FILTER, GL_NEAREST);
GL_CHECK_ERROR;
glTexParameteri(getGLES2TextureTarget(),
GL_TEXTURE_MAG_FILTER, GL_NEAREST);
GL_CHECK_ERROR;
glTexParameteri(getGLES2TextureTarget(),
GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
GL_CHECK_ERROR;
glTexParameteri(getGLES2TextureTarget(),
GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
GL_CHECK_ERROR;
// Allocate internal buffer so that glTexSubImageXD can be used
// Internal format
GLenum format = GLES2PixelUtil::getGLOriginFormat(mFormat);
GLenum internalformat = GLES2PixelUtil::getClosestGLInternalFormat(mFormat, mHwGamma);
GLenum datatype = GLES2PixelUtil::getGLOriginDataType(mFormat);
size_t width = mWidth;
size_t height = mHeight;
size_t depth = mDepth;
if (PixelUtil::isCompressed(mFormat))
{
// Compressed formats
size_t size = PixelUtil::getMemorySize(mWidth, mHeight, mDepth, mFormat);
// Provide temporary buffer filled with zeroes as glCompressedTexImageXD does not
// accept a 0 pointer like normal glTexImageXD
// Run through this process for every mipmap to pregenerate mipmap pyramid
uint8* tmpdata = new uint8[size];
memset(tmpdata, 0, size);
for (size_t mip = 0; mip <= mNumMipmaps; mip++)
{
// LogManager::getSingleton().logMessage("GLES2Texture::create - Mip: " + StringConverter::toString(mip) +
// " Width: " + StringConverter::toString(width) +
// " Height: " + StringConverter::toString(height) +
// " Internal Format: " + StringConverter::toString(internalformat, 0, ' ', std::ios::hex) +
// " Format: " + StringConverter::toString(format, 0, ' ', std::ios::hex) +
// " Datatype: " + StringConverter::toString(datatype, 0, ' ', std::ios::hex)
// );
size = PixelUtil::getMemorySize(width, height, depth, mFormat);
switch(mTextureType)
{
case TEX_TYPE_1D:
case TEX_TYPE_2D:
glCompressedTexImage2D(GL_TEXTURE_2D,
mip,
internalformat,
width, height,
0,
size,
tmpdata);
GL_CHECK_ERROR;
break;
case TEX_TYPE_CUBE_MAP:
for(int face = 0; face < 6; face++) {
glCompressedTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, mip, internalformat,
width, height, 0,
size, tmpdata);
GL_CHECK_ERROR;
}
break;
case TEX_TYPE_3D:
default:
break;
};
if(width > 1)
{
width = width / 2;
}
if(height > 1)
{
height = height / 2;
}
if(depth > 1)
{
depth = depth / 2;
}
}
delete [] tmpdata;
}
else
{
// Run through this process to pregenerate mipmap pyramid
for(size_t mip = 0; mip <= mNumMipmaps; mip++)
{
// LogManager::getSingleton().logMessage("GLES2Texture::create - Mip: " + StringConverter::toString(mip) +
// " Name: " + mName +
// " ID: " + StringConverter::toString(mTextureID) +
// " Width: " + StringConverter::toString(width) +
// " Height: " + StringConverter::toString(height) +
// " Internal Format: " + StringConverter::toString(internalformat, 0, ' ', std::ios::hex) +
// " Format: " + StringConverter::toString(format, 0, ' ', std::ios::hex) +
// " Datatype: " + StringConverter::toString(datatype, 0, ' ', std::ios::hex)
// );
// Normal formats
switch(mTextureType)
{
case TEX_TYPE_1D:
case TEX_TYPE_2D:
#if OGRE_PLATFORM == OGRE_PLATFORM_NACL
if(internalformat != format)
{
LogManager::getSingleton().logMessage("glTexImage2D: format != internalFormat, "
"format=" + StringConverter::toString(format) +
", internalFormat=" + StringConverter::toString(internalformat));
}
#endif
glTexImage2D(GL_TEXTURE_2D,
mip,
internalformat,
width, height,
0,
format,
datatype, 0);
GL_CHECK_ERROR;
break;
case TEX_TYPE_CUBE_MAP:
for(int face = 0; face < 6; face++) {
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, mip, internalformat,
width, height, 0,
format, datatype, 0);
}
break;
case TEX_TYPE_3D:
default:
break;
};
if (width > 1)
{
width = width / 2;
}
if (height > 1)
{
height = height / 2;
}
}
}
_createSurfaceList();
// Get final internal format
mFormat = getBuffer(0,0)->getFormat();
}
