void QOpenGLTextureHelper::qt_CompressedTextureImage1D(GLuint texture, GLenum target, GLenum bindingTarget, GLint level, GLenum internalFormat, GLsizei width, GLint border, GLsizei imageSize, const GLvoid *bits)
{
GLint oldTexture;
glGetIntegerv(bindingTarget, &oldTexture);
glBindTexture(target, texture);
glCompressedTexImage1D(target, level, internalFormat, width, border, imageSize, bits);
glBindTexture(target, oldTexture);
}
void Texture1D::init(int w, TextureInternalFormat tf, TextureFormat f, PixelType t,
const Parameters ¶ms, const Buffer::Parameters &s, const Buffer &pixels)
{
Texture::init(tf, params);
this->w = w;
pixels.bind(GL_PIXEL_UNPACK_BUFFER);
if (isCompressed() && s.compressedSize() > 0) {
glCompressedTexImage1D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, 0, s.compressedSize(), pixels.data(0));
} else {
s.set();
glTexImage1D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, 0, getTextureFormat(f), getPixelType(t), pixels.data(0));
s.unset();
}
pixels.unbind(GL_PIXEL_UNPACK_BUFFER);
generateMipMap();
if (FrameBuffer::getError() != 0) {
throw exception();
}
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_GL13_nglCompressedTexImage1DBO(JNIEnv *env, jclass clazz, jint target, jint level, jint internalformat, jint width, jint border, jint imageSize, jlong data_buffer_offset, jlong function_pointer) {
const GLvoid *data_address = (const GLvoid *)(intptr_t)offsetToPointer(data_buffer_offset);
glCompressedTexImage1DPROC glCompressedTexImage1D = (glCompressedTexImage1DPROC)((intptr_t)function_pointer);
glCompressedTexImage1D(target, level, internalformat, width, border, imageSize, data_address);
}
void GLTextureBuffer::upload(const PixelData &data, const PixelVolume &dest)
{
if((mUsage & TU_RENDERTARGET) != 0)
BS_EXCEPT(NotImplementedException, "Writing to render texture from CPU not supported.");
if ((mUsage & TU_DEPTHSTENCIL) != 0)
BS_EXCEPT(NotImplementedException, "Writing to depth stencil texture from CPU not supported.");
glBindTexture( mTarget, mTextureID );
if(PixelUtil::isCompressed(data.getFormat()))
{
if(data.getFormat() != mFormat || !data.isConsecutive())
BS_EXCEPT(InvalidParametersException,
"Compressed images must be consecutive, in the source format");
GLenum format = GLPixelUtil::getClosestGLInternalFormat(mFormat);
switch(mTarget) {
case GL_TEXTURE_1D:
if (dest.left == 0)
{
glCompressedTexImage1D(GL_TEXTURE_1D, mLevel,
format,
dest.getWidth(),
0,
data.getConsecutiveSize(),
data.getData());
}
else
{
glCompressedTexSubImage1D(GL_TEXTURE_1D, mLevel,
dest.left,
dest.getWidth(),
format, data.getConsecutiveSize(),
data.getData());
}
break;
case GL_TEXTURE_2D:
case GL_TEXTURE_CUBE_MAP:
if (dest.left == 0 && dest.top == 0)
{
glCompressedTexImage2D(mFaceTarget, mLevel,
format,
dest.getWidth(),
dest.getHeight(),
0,
data.getConsecutiveSize(),
data.getData());
}
else
{
glCompressedTexSubImage2D(mFaceTarget, mLevel,
dest.left, dest.top,
dest.getWidth(), dest.getHeight(),
format, data.getConsecutiveSize(),
data.getData());
}
break;
case GL_TEXTURE_3D:
if (dest.left == 0 && dest.top == 0 && dest.front == 0)
{
glCompressedTexImage3D(GL_TEXTURE_3D, mLevel,
format,
dest.getWidth(),
dest.getHeight(),
dest.getDepth(),
0,
data.getConsecutiveSize(),
data.getData());
}
else
{
glCompressedTexSubImage3D(GL_TEXTURE_3D, mLevel,
dest.left, dest.top, dest.front,
dest.getWidth(), dest.getHeight(), dest.getDepth(),
format, data.getConsecutiveSize(),
data.getData());
}
break;
}
}
else
{
if(data.getWidth() != data.getRowPitch())
glPixelStorei(GL_UNPACK_ROW_LENGTH, data.getRowPitch());
if(data.getHeight()*data.getWidth() != data.getSlicePitch())
glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, (data.getSlicePitch()/data.getWidth()));
if(data.getLeft() > 0 || data.getTop() > 0 || data.getFront() > 0)
glPixelStorei(GL_UNPACK_SKIP_PIXELS, data.getLeft() + data.getRowPitch() * data.getTop() + data.getSlicePitch() * data.getFront());
if((data.getWidth()*PixelUtil::getNumElemBytes(data.getFormat())) & 3)
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
switch(mTarget) {
case GL_TEXTURE_1D:
glTexSubImage1D(GL_TEXTURE_1D, mLevel,
dest.left,
dest.getWidth(),
GLPixelUtil::getGLOriginFormat(data.getFormat()), GLPixelUtil::getGLOriginDataType(data.getFormat()),
data.getData());
break;
case GL_TEXTURE_2D:
case GL_TEXTURE_CUBE_MAP:
glTexSubImage2D(mFaceTarget, mLevel,
dest.left, dest.top,
dest.getWidth(), dest.getHeight(),
GLPixelUtil::getGLOriginFormat(data.getFormat()), GLPixelUtil::getGLOriginDataType(data.getFormat()),
data.getData());
break;
case GL_TEXTURE_3D:
glTexSubImage3D(
GL_TEXTURE_3D, mLevel,
dest.left, dest.top, dest.front,
dest.getWidth(), dest.getHeight(), dest.getDepth(),
GLPixelUtil::getGLOriginFormat(data.getFormat()), GLPixelUtil::getGLOriginDataType(data.getFormat()),
data.getData());
break;
}
}
// Restore defaults
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
BS_INC_RENDER_STAT_CAT(ResWrite, RenderStatObject_Texture);
}
/*
* @~English
* @brief Load a GL texture object from a ktxStream.
*
* This function will unpack compressed GL_ETC1_RGB8_OES and GL_ETC2_* format
* textures in software when the format is not supported by the GL context,
* provided the library has been compiled with SUPPORT_SOFTWARE_ETC_UNPACK
* defined as 1.
*
* It will also convert textures with legacy formats to their modern equivalents
* when the format is not supported by the GL context, provided that the library
* has been compiled with SUPPORT_LEGACY_FORMAT_CONVERSION defined as 1.
*
* @param [in] stream pointer to the ktxStream from which to load.
* @param [in,out] pTexture name of the GL texture to load. If NULL or if
* <tt>*pTexture == 0</tt> the function will generate
* a texture name. The function binds either the
* generated name or the name given in @p *pTexture
* to the texture target returned in @p *pTarget,
* before loading the texture data. If @p pTexture
* is not NULL and a name was generated, the generated
* name will be returned in *pTexture.
* @param [out] pTarget @p *pTarget is set to the texture target used. The
* target is chosen based on the file contents.
* @param [out] pDimensions If @p pDimensions is not NULL, the width, height and
* depth of the texture's base level are returned in the
* fields of the KTX_dimensions structure to which it points.
* @param [out] pIsMipmapped
* If @p pIsMipmapped is not NULL, @p *pIsMipmapped is set
* to GL_TRUE if the KTX texture is mipmapped, GL_FALSE
* otherwise.
* @param [out] pGlerror @p *pGlerror is set to the value returned by
* glGetError when this function returns the error
* KTX_GL_ERROR. glerror can be NULL.
* @param [in,out] pKvdLen If not NULL, @p *pKvdLen is set to the number of bytes
* of key-value data pointed at by @p *ppKvd. Must not be
* NULL, if @p ppKvd is not NULL.
* @param [in,out] ppKvd If not NULL, @p *ppKvd is set to the point to a block of
* memory containing key-value data read from the file.
* The application is responsible for freeing the memory.
*
*
* @return KTX_SUCCESS on success, other KTX_* enum values on error.
*
* @exception KTX_INVALID_VALUE @p target is @c NULL or the size of a mip
* level is greater than the size of the
* preceding level.
* @exception KTX_INVALID_OPERATION @p ppKvd is not NULL but pKvdLen is NULL.
* @exception KTX_UNEXPECTED_END_OF_FILE the file does not contain the
* expected amount of data.
* @exception KTX_OUT_OF_MEMORY Sufficient memory could not be allocated to store
* the requested key-value data.
* @exception KTX_GL_ERROR A GL error was raised by glBindTexture,
* glGenTextures or gl*TexImage*. The GL error
* will be returned in @p *glerror, if glerror
* is not @c NULL.
*/
static
KTX_error_code
ktxLoadTextureS(struct ktxStream* stream, GLuint* pTexture, GLenum* pTarget,
KTX_dimensions* pDimensions, GLboolean* pIsMipmapped,
GLenum* pGlerror,
unsigned int* pKvdLen, unsigned char** ppKvd)
{
GLint previousUnpackAlignment;
KTX_header header;
KTX_texinfo texinfo;
void* data = NULL;
khronos_uint32_t dataSize = 0;
GLuint texname;
int texnameUser;
khronos_uint32_t faceLodSize;
khronos_uint32_t faceLodSizeRounded;
khronos_uint32_t level;
khronos_uint32_t face;
GLenum glFormat, glInternalFormat;
KTX_error_code errorCode = KTX_SUCCESS;
GLenum errorTmp;
if (pGlerror)
*pGlerror = GL_NO_ERROR;
if (ppKvd) {
*ppKvd = NULL;
}
if (!stream || !stream->read || !stream->skip) {
return KTX_INVALID_VALUE;
}
if (!pTarget) {
return KTX_INVALID_VALUE;
}
if (!stream->read(&header, KTX_HEADER_SIZE, stream->src)) {
return KTX_UNEXPECTED_END_OF_FILE;
}
errorCode = _ktxCheckHeader(&header, &texinfo);
if (errorCode != KTX_SUCCESS) {
return errorCode;
}
if (ppKvd) {
if (pKvdLen == NULL)
return KTX_INVALID_OPERATION;
*pKvdLen = header.bytesOfKeyValueData;
if (*pKvdLen) {
*ppKvd = (unsigned char*)malloc(*pKvdLen);
if (*ppKvd == NULL)
return KTX_OUT_OF_MEMORY;
if (!stream->read(*ppKvd, *pKvdLen, stream->src))
{
free(*ppKvd);
*ppKvd = NULL;
return KTX_UNEXPECTED_END_OF_FILE;
}
}
} else {
/* skip key/value metadata */
if (!stream->skip((long)header.bytesOfKeyValueData, stream->src)) {
return KTX_UNEXPECTED_END_OF_FILE;
}
}
if (contextProfile == 0)
discoverContextCapabilities();
/* KTX files require an unpack alignment of 4 */
glGetIntegerv(GL_UNPACK_ALIGNMENT, &previousUnpackAlignment);
if (previousUnpackAlignment != KTX_GL_UNPACK_ALIGNMENT) {
glPixelStorei(GL_UNPACK_ALIGNMENT, KTX_GL_UNPACK_ALIGNMENT);
}
texnameUser = pTexture && *pTexture;
if (texnameUser) {
texname = *pTexture;
} else {
glGenTextures(1, &texname);
}
glBindTexture(texinfo.glTarget, texname);
// Prefer glGenerateMipmaps over GL_GENERATE_MIPMAP
if (texinfo.generateMipmaps && (glGenerateMipmap == NULL)) {
glTexParameteri(texinfo.glTarget, GL_GENERATE_MIPMAP, GL_TRUE);
}
if (texinfo.glTarget == GL_TEXTURE_CUBE_MAP) {
texinfo.glTarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X;
}
glInternalFormat = header.glInternalFormat;
glFormat = header.glFormat;
if (!texinfo.compressed) {
#if SUPPORT_LEGACY_FORMAT_CONVERSION
// If sized legacy formats are supported there is no need to convert.
// If only unsized formats are supported, there is no point in converting
// as the modern formats aren't supported either.
if (sizedFormats == _NON_LEGACY_FORMATS && supportsSwizzle) {
convertFormat(texinfo.glTarget, &glFormat, &glInternalFormat);
errorTmp = glGetError();
} else if (sizedFormats == _NO_SIZED_FORMATS)
glInternalFormat = header.glBaseInternalFormat;
#else
// When no sized formats are supported, or legacy sized formats are not
// supported, must change internal format.
if (sizedFormats == _NO_SIZED_FORMATS
|| (!(sizedFormats & _LEGACY_FORMATS) &&
(header.glBaseInternalFormat == GL_ALPHA
|| header.glBaseInternalFormat == GL_LUMINANCE
|| header.glBaseInternalFormat == GL_LUMINANCE_ALPHA
|| header.glBaseInternalFormat == GL_INTENSITY))) {
glInternalFormat = header.glBaseInternalFormat;
}
#endif
}
for (level = 0; level < header.numberOfMipmapLevels; ++level)
{
GLsizei pixelWidth = MAX(1, header.pixelWidth >> level);
GLsizei pixelHeight = MAX(1, header.pixelHeight >> level);
GLsizei pixelDepth = MAX(1, header.pixelDepth >> level);
if (!stream->read(&faceLodSize, sizeof(khronos_uint32_t), stream->src)) {
errorCode = KTX_UNEXPECTED_END_OF_FILE;
goto cleanup;
}
if (header.endianness == KTX_ENDIAN_REF_REV) {
_ktxSwapEndian32(&faceLodSize, 1);
}
faceLodSizeRounded = (faceLodSize + 3) & ~(khronos_uint32_t)3;
if (!data) {
/* allocate memory sufficient for the first level */
data = malloc(faceLodSizeRounded);
if (!data) {
errorCode = KTX_OUT_OF_MEMORY;
goto cleanup;
}
dataSize = faceLodSizeRounded;
}
else if (dataSize < faceLodSizeRounded) {
/* subsequent levels cannot be larger than the first level */
errorCode = KTX_INVALID_VALUE;
goto cleanup;
}
for (face = 0; face < header.numberOfFaces; ++face)
{
if (!stream->read(data, faceLodSizeRounded, stream->src)) {
errorCode = KTX_UNEXPECTED_END_OF_FILE;
goto cleanup;
}
/* Perform endianness conversion on texture data */
if (header.endianness == KTX_ENDIAN_REF_REV && header.glTypeSize == 2) {
_ktxSwapEndian16((khronos_uint16_t*)data, faceLodSize / 2);
}
else if (header.endianness == KTX_ENDIAN_REF_REV && header.glTypeSize == 4) {
_ktxSwapEndian32((khronos_uint32_t*)data, faceLodSize / 4);
}
if (texinfo.textureDimensions == 1) {
if (texinfo.compressed) {
glCompressedTexImage1D(texinfo.glTarget + face, level,
glInternalFormat, pixelWidth, 0,
faceLodSize, data);
} else {
glTexImage1D(texinfo.glTarget + face, level,
glInternalFormat, pixelWidth, 0,
glFormat, header.glType, data);
}
} else if (texinfo.textureDimensions == 2) {
if (header.numberOfArrayElements) {
pixelHeight = header.numberOfArrayElements;
}
if (texinfo.compressed) {
// It is simpler to just attempt to load the format, rather than divine which
// formats are supported by the implementation. In the event of an error,
// software unpacking can be attempted.
glCompressedTexImage2D(texinfo.glTarget + face, level,
glInternalFormat, pixelWidth, pixelHeight, 0,
faceLodSize, data);
} else {
glTexImage2D(texinfo.glTarget + face, level,
glInternalFormat, pixelWidth, pixelHeight, 0,
glFormat, header.glType, data);
}
} else if (texinfo.textureDimensions == 3) {
if (header.numberOfArrayElements) {
pixelDepth = header.numberOfArrayElements;
}
if (texinfo.compressed) {
glCompressedTexImage3D(texinfo.glTarget + face, level,
glInternalFormat, pixelWidth, pixelHeight, pixelDepth, 0,
faceLodSize, data);
} else {
glTexImage3D(texinfo.glTarget + face, level,
glInternalFormat, pixelWidth, pixelHeight, pixelDepth, 0,
glFormat, header.glType, data);
}
}
errorTmp = glGetError();
#if SUPPORT_SOFTWARE_ETC_UNPACK
// Renderion is returning INVALID_VALUE. Oops!!
if ((errorTmp == GL_INVALID_ENUM || errorTmp == GL_INVALID_VALUE)
&& texinfo.compressed
&& texinfo.textureDimensions == 2
&& (glInternalFormat == GL_ETC1_RGB8_OES || (glInternalFormat >= GL_COMPRESSED_R11_EAC && glInternalFormat <= GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC)))
{
GLubyte* unpacked;
GLenum format, internalFormat, type;
errorCode = _ktxUnpackETC((GLubyte*)data, glInternalFormat, pixelWidth, pixelHeight,
&unpacked, &format, &internalFormat, &type,
R16Formats, supportsSRGB);
if (errorCode != KTX_SUCCESS) {
goto cleanup;
}
if (!sizedFormats & _NON_LEGACY_FORMATS) {
if (internalFormat == GL_RGB8)
internalFormat = GL_RGB;
else if (internalFormat == GL_RGBA8)
internalFormat = GL_RGBA;
}
glTexImage2D(texinfo.glTarget + face, level,
internalFormat, pixelWidth, pixelHeight, 0,
format, type, unpacked);
free(unpacked);
errorTmp = glGetError();
}
#endif
if (errorTmp != GL_NO_ERROR) {
if (pGlerror)
*pGlerror = errorTmp;
errorCode = KTX_GL_ERROR;
goto cleanup;
}
}
}
cleanup:
free(data);
/* restore previous GL state */
if (previousUnpackAlignment != KTX_GL_UNPACK_ALIGNMENT) {
glPixelStorei(GL_UNPACK_ALIGNMENT, previousUnpackAlignment);
}
if (errorCode == KTX_SUCCESS)
{
if (texinfo.generateMipmaps && glGenerateMipmap) {
glGenerateMipmap(texinfo.glTarget);
}
*pTarget = texinfo.glTarget;
if (pTexture) {
*pTexture = texname;
}
if (pDimensions) {
pDimensions->width = header.pixelWidth;
pDimensions->height = header.pixelHeight;
pDimensions->depth = header.pixelDepth;
}
if (pIsMipmapped) {
if (texinfo.generateMipmaps || header.numberOfMipmapLevels > 1)
*pIsMipmapped = GL_TRUE;
else
*pIsMipmapped = GL_FALSE;
}
} else {
if (ppKvd && *ppKvd)
{
free(*ppKvd);
*ppKvd = NULL;
}
if (!texnameUser) {
glDeleteTextures(1, &texname);
}
}
return errorCode;
}
void OGLTexture1D::CreateHWResource(ElementInitData const * init_data)
{
uint32_t texel_size = NumFormatBytes(format_);
GLint glinternalFormat;
GLenum glformat;
GLenum gltype;
OGLMapping::MappingFormat(glinternalFormat, glformat, gltype, format_);
if (sample_count_ <= 1)
{
glBindTexture(target_type_, texture_);
glTexParameteri(target_type_, GL_TEXTURE_MAX_LEVEL, num_mip_maps_ - 1);
OGLRenderEngine& re = *checked_cast<OGLRenderEngine*>(&Context::Instance().RenderFactoryInstance().RenderEngineInstance());
for (uint32_t array_index = 0; array_index < array_size_; ++ array_index)
{
for (uint32_t level = 0; level < num_mip_maps_; ++ level)
{
uint32_t const w = this->Width(level);
re.BindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[array_index * num_mip_maps_ + level]);
if (IsCompressedFormat(format_))
{
uint32_t const block_size = NumFormatBytes(format_) * 4;
GLsizei const image_size = ((w + 3) / 4) * block_size;
glBufferData(GL_PIXEL_UNPACK_BUFFER, image_size, nullptr, GL_STREAM_DRAW);
re.BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
if (array_size_ > 1)
{
if (0 == array_index)
{
glCompressedTexImage2D(target_type_, level, glinternalFormat,
w, array_size_, 0, image_size * array_size_, nullptr);
}
if (init_data != nullptr)
{
glCompressedTexSubImage2D(target_type_, level, 0, array_index, w, 1,
glformat, image_size, init_data[array_index * num_mip_maps_ + level].data);
}
}
else
{
glCompressedTexImage1D(target_type_, level, glinternalFormat,
w, 0, image_size, (nullptr == init_data) ? nullptr : init_data[array_index * num_mip_maps_ + level].data);
}
}
else
{
GLsizei const image_size = w * texel_size;
glBufferData(GL_PIXEL_UNPACK_BUFFER, image_size, nullptr, GL_STREAM_DRAW);
re.BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
if (array_size_ > 1)
{
if (0 == array_index)
{
glTexImage2D(target_type_, level, glinternalFormat, w, array_size_, 0, glformat, gltype, nullptr);
}
if (init_data != nullptr)
{
glTexSubImage2D(target_type_, level, 0, array_index, w, 1,
glformat, gltype, init_data[array_index * num_mip_maps_ + level].data);
}
}
else
{
glTexImage1D(target_type_, level, glinternalFormat, w, 0, glformat, gltype,
(nullptr == init_data) ? nullptr : init_data[array_index * num_mip_maps_ + level].data);
}
}
}
}
}
else
{
glBindRenderbuffer(GL_RENDERBUFFER, texture_);
glRenderbufferStorageMultisample(GL_RENDERBUFFER, sample_count_, glinternalFormat, width_, 1);
}
hw_res_ready_ = true;
}
// Creation / loading methods
void GL3PlusTexture::createInternalResourcesImpl(void)
{
// set HardwareBuffer::Usage for TU_RENDERTARGET if nothing else specified
if((mUsage & TU_RENDERTARGET) && (mUsage & ~TU_RENDERTARGET) == 0)
mUsage |= HardwareBuffer::HBU_DYNAMIC;
// Adjust format if required.
mFormat = TextureManager::getSingleton().getNativeFormat(mTextureType, mFormat, mUsage);
// Check requested number of mipmaps.
uint32 maxMips = getMaxMipmaps();
if (PixelUtil::isCompressed(mFormat) && (mNumMipmaps == 0))
mNumRequestedMipmaps = 0;
mNumMipmaps = mNumRequestedMipmaps;
if (mNumMipmaps > maxMips)
mNumMipmaps = maxMips;
// Create a texture object and identify its GL type.
OGRE_CHECK_GL_ERROR(glGenTextures(1, &mTextureID));
GLenum texTarget = getGL3PlusTextureTarget();
// Calculate size for all mip levels of the texture.
uint32 width, height, depth;
if ((mWidth * PixelUtil::getNumElemBytes(mFormat)) & 3) {
// Standard alignment of 4 is not right for some formats.
OGRE_CHECK_GL_ERROR(glPixelStorei(GL_UNPACK_ALIGNMENT, 1));
}
// Bind texture object to its type, making it the active texture object
// for that type.
mRenderSystem->_getStateCacheManager()->bindGLTexture( texTarget, mTextureID );
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_BASE_LEVEL, 0);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_MAX_LEVEL, mNumMipmaps);
// Set some misc default parameters, these can of course be changed later.
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget,
GL_TEXTURE_MIN_FILTER, GL_NEAREST);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget,
GL_TEXTURE_MAG_FILTER, GL_NEAREST);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget,
GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget,
GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
// Set up texture swizzling.
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_R, GL_RED);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_G, GL_GREEN);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_B, GL_BLUE);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_A, GL_ALPHA);
if (PixelUtil::isLuminance(mFormat) && (mRenderSystem->hasMinGLVersion(3, 3) || mRenderSystem->checkExtension("GL_ARB_texture_swizzle")))
{
if (PixelUtil::getComponentCount(mFormat) == 2)
{
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_R, GL_RED);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_G, GL_RED);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_B, GL_RED);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_A, GL_GREEN);
}
else
{
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_R, GL_RED);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_G, GL_RED);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_B, GL_RED);
mRenderSystem->_getStateCacheManager()->setTexParameteri(texTarget, GL_TEXTURE_SWIZZLE_A, GL_ONE);
}
}
GLenum format = GL3PlusPixelUtil::getGLInternalFormat(mFormat, mHwGamma);
GLenum datatype = GL3PlusPixelUtil::getGLOriginDataType(mFormat);
width = mWidth;
height = mHeight;
depth = mDepth;
// Allocate texture storage so that glTexSubImageXD can be
// used to upload the texture.
if (PixelUtil::isCompressed(mFormat))
{
// Compressed formats
GLsizei size;
for (uint32 mip = 0; mip <= mNumMipmaps; mip++)
{
size = static_cast<GLsizei>(PixelUtil::getMemorySize(width, height, depth, mFormat));
// std::stringstream str;
// str << "GL3PlusTexture::create - " << StringConverter::toString(mTextureID)
// << " bytes: " << StringConverter::toString(PixelUtil::getMemorySize(mWidth, mHeight, mDepth, mFormat))
// << " Mip: " + StringConverter::toString(mip)
// << " Width: " << StringConverter::toString(width)
// << " Height: " << StringConverter::toString(height)
// << " Format " << PixelUtil::getFormatName(mFormat)
// << " Internal Format: 0x" << std::hex << format
// << " Origin Format: 0x" << std::hex << GL3PlusPixelUtil::getGLOriginFormat(mFormat)
// << " Data type: 0x" << std::hex << datatype;
// LogManager::getSingleton().logMessage(LML_NORMAL, str.str());
switch(mTextureType)
{
case TEX_TYPE_1D:
OGRE_CHECK_GL_ERROR(glCompressedTexImage1D(GL_TEXTURE_1D, mip, format,
width, 0,
size, NULL));
break;
case TEX_TYPE_2D:
OGRE_CHECK_GL_ERROR(glCompressedTexImage2D(GL_TEXTURE_2D,
mip,
format,
width, height,
0,
size,
NULL));
break;
case TEX_TYPE_2D_RECT:
OGRE_CHECK_GL_ERROR(glCompressedTexImage2D(GL_TEXTURE_RECTANGLE,
mip,
format,
width, height,
0,
size,
NULL));
break;
case TEX_TYPE_2D_ARRAY:
case TEX_TYPE_3D:
OGRE_CHECK_GL_ERROR(glCompressedTexImage3D(texTarget, mip, format,
width, height, depth, 0,
size, NULL));
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, format,
width, height, 0,
size, NULL));
}
break;
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;
}
}
}
else
{
if (mRenderSystem->hasMinGLVersion(4, 2) || mRenderSystem->checkExtension("GL_ARB_texture_storage"))
{
switch(mTextureType)
{
case TEX_TYPE_1D:
OGRE_CHECK_GL_ERROR(glTexStorage1D(GL_TEXTURE_1D, GLsizei(mNumMipmaps+1), format, GLsizei(width)));
break;
case TEX_TYPE_2D:
case TEX_TYPE_2D_RECT:
OGRE_CHECK_GL_ERROR(glTexStorage2D(GL_TEXTURE_2D, GLsizei(mNumMipmaps+1), format, GLsizei(width), GLsizei(height)));
break;
case TEX_TYPE_CUBE_MAP:
OGRE_CHECK_GL_ERROR(glTexStorage2D(GL_TEXTURE_CUBE_MAP, GLsizei(mNumMipmaps+1), format, GLsizei(width), GLsizei(height)));
break;
case TEX_TYPE_2D_ARRAY:
OGRE_CHECK_GL_ERROR(glTexStorage3D(GL_TEXTURE_2D_ARRAY, GLsizei(mNumMipmaps+1), format, GLsizei(width), GLsizei(height), GLsizei(depth)));
break;
case TEX_TYPE_3D:
OGRE_CHECK_GL_ERROR(glTexStorage3D(GL_TEXTURE_3D, GLsizei(mNumMipmaps+1), format, GLsizei(width), GLsizei(height), GLsizei(depth)));
break;
}
}
else
{
GLenum originFormat = GL3PlusPixelUtil::getGLOriginFormat(mFormat);
// Run through this process to pregenerate mipmap pyramid
for(uint32 mip = 0; mip <= mNumMipmaps; mip++)
{
// std::stringstream str;
// str << "GL3PlusTexture::create - " << StringConverter::toString(mTextureID)
// << " bytes: " << StringConverter::toString(PixelUtil::getMemorySize(width, height, depth, mFormat))
// << " Mip: " + StringConverter::toString(mip)
// << " Width: " << StringConverter::toString(width)
// << " Height: " << StringConverter::toString(height)
// << " Format " << PixelUtil::getFormatName(mFormat)
// << " Internal Format: 0x" << std::hex << format
// << " Origin Format: 0x" << std::hex << GL3PlusPixelUtil::getGLOriginFormat(mFormat)
// << " Data type: 0x" << std::hex << datatype;
// LogManager::getSingleton().logMessage(LML_NORMAL, str.str());
// Normal formats
switch(mTextureType)
{
case TEX_TYPE_1D:
OGRE_CHECK_GL_ERROR(glTexImage1D(GL_TEXTURE_1D, mip, format,
width, 0,
originFormat, datatype, NULL));
break;
case TEX_TYPE_2D:
OGRE_CHECK_GL_ERROR(glTexImage2D(GL_TEXTURE_2D,
mip,
format,
width, height,
0,
originFormat,
datatype, NULL));
break;
case TEX_TYPE_2D_RECT:
OGRE_CHECK_GL_ERROR(glTexImage2D(GL_TEXTURE_RECTANGLE,
mip,
format,
width, height,
0,
originFormat,
datatype, NULL));
break;
case TEX_TYPE_3D:
case TEX_TYPE_2D_ARRAY:
OGRE_CHECK_GL_ERROR(glTexImage3D(texTarget, mip, format,
width, height, depth, 0,
originFormat, datatype, NULL));
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, format,
width, height, 0,
originFormat, datatype, NULL));
}
break;
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;
}
}
}
}
// Reset unpack alignment to defaults
OGRE_CHECK_GL_ERROR(glPixelStorei(GL_UNPACK_ALIGNMENT, 4));
_createSurfaceList();
// Generate mipmaps after all texture levels have been loaded
// This is required for compressed formats such as DXT
if (PixelUtil::isCompressed(mFormat) && mUsage & TU_AUTOMIPMAP)
{
OGRE_CHECK_GL_ERROR(glGenerateMipmap(getGL3PlusTextureTarget()));
}
// Get final internal format.
mFormat = getBuffer(0,0)->getFormat();
}
// Creation / loading methods
void GL3PlusTexture::createInternalResourcesImpl(void)
{
// Adjust format if required
mFormat = TextureManager::getSingleton().getNativeFormat(mTextureType, mFormat, mUsage);
// Check requested number of mipmaps
size_t maxMips = GL3PlusPixelUtil::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));
GLenum texTarget = getGL3PlusTextureTarget();
// Set texture type
OGRE_CHECK_GL_ERROR(glBindTexture(texTarget, mTextureID));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget, GL_TEXTURE_BASE_LEVEL, 0));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget, GL_TEXTURE_MAX_LEVEL, (mMipmapsHardwareGenerated && (mUsage & TU_AUTOMIPMAP)) ? maxMips : mNumMipmaps ));
// Set some misc default parameters, these can of course be changed later
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget,
GL_TEXTURE_MIN_FILTER, GL_NEAREST));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget,
GL_TEXTURE_MAG_FILTER, GL_NEAREST));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget,
GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
OGRE_CHECK_GL_ERROR(glTexParameteri(texTarget,
GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
// Set up texture swizzling
if(mGLSupport.checkExtension("GL_ARB_texture_swizzle") || gl3wIsSupported(3, 3))
{
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_BYTE_LA)
{
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_GREEN));
}
else 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));
}
}
// If we can do automip generation and the user desires this, do so
mMipmapsHardwareGenerated =
Root::getSingleton().getRenderSystem()->getCapabilities()->hasCapability(RSC_AUTOMIPMAP);
// Allocate internal buffer so that glTexSubImageXD can be used
// Internal format
GLenum format = GL3PlusPixelUtil::getClosestGLInternalFormat(mFormat, mHwGamma);
GLenum datatype = GL3PlusPixelUtil::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++)
{
size = PixelUtil::getMemorySize(width, height, depth, mFormat);
switch(mTextureType)
{
case TEX_TYPE_1D:
OGRE_CHECK_GL_ERROR(glCompressedTexImage1D(GL_TEXTURE_1D, mip, format,
width, 0,
size, tmpdata));
break;
case TEX_TYPE_2D:
OGRE_CHECK_GL_ERROR(glCompressedTexImage2D(GL_TEXTURE_2D,
mip,
format,
width, height,
0,
size,
tmpdata));
break;
case TEX_TYPE_2D_RECT:
OGRE_CHECK_GL_ERROR(glCompressedTexImage2D(GL_TEXTURE_RECTANGLE,
mip,
format,
width, height,
0,
size,
tmpdata));
break;
case TEX_TYPE_2D_ARRAY:
case TEX_TYPE_3D:
OGRE_CHECK_GL_ERROR(glCompressedTexImage3D(texTarget, mip, format,
width, height, depth, 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, format,
width, height, 0,
size, tmpdata));
}
break;
default:
break;
};
// LogManager::getSingleton().logMessage("GL3PlusTexture::create - " + StringConverter::toString(mTextureID) +
// " Mip: " + StringConverter::toString(mip) +
// " Width: " + StringConverter::toString(width) +
// " Height: " + StringConverter::toString(height) +
// " Internal Format: " + StringConverter::toString(format)
// );
if(width > 1)
{
width = width / 2;
}
if(height > 1)
{
height = height / 2;
}
if(depth > 1)
{
depth = depth / 2;
}
}
delete [] tmpdata;
}
else
{
if((mGLSupport.checkExtension("GL_ARB_texture_storage") || gl3wIsSupported(4, 2)) && mTextureType == TEX_TYPE_2D)
{
OGRE_CHECK_GL_ERROR(glTexStorage2D(GL_TEXTURE_2D, GLint(mNumMipmaps+1), format, GLsizei(width), GLsizei(height)));
}
else
{
// Run through this process to pregenerate mipmap pyramid
for(size_t mip = 0; mip <= mNumMipmaps; mip++)
{
// Normal formats
switch(mTextureType)
{
case TEX_TYPE_1D:
OGRE_CHECK_GL_ERROR(glTexImage1D(GL_TEXTURE_1D, mip, format,
width, 0,
GL_RGBA, datatype, 0));
break;
case TEX_TYPE_2D:
OGRE_CHECK_GL_ERROR(glTexImage2D(GL_TEXTURE_2D,
mip,
format,
width, height,
0,
GL3PlusPixelUtil::getGLOriginFormat(mFormat),
datatype, 0));
break;
case TEX_TYPE_2D_RECT:
OGRE_CHECK_GL_ERROR(glTexImage2D(GL_TEXTURE_RECTANGLE,
mip,
format,
width, height,
0,
GL3PlusPixelUtil::getGLOriginFormat(mFormat),
datatype, 0));
break;
case TEX_TYPE_3D:
case TEX_TYPE_2D_ARRAY:
OGRE_CHECK_GL_ERROR(glTexImage3D(texTarget, mip, format,
width, height, depth, 0,
GL_RGBA, 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, format,
width, height, 0,
GL3PlusPixelUtil::getGLOriginFormat(mFormat), datatype, 0));
}
break;
default:
break;
};
if (width > 1)
{
width = width / 2;
}
if (height > 1)
{
height = height / 2;
}
if (depth > 1)
{
depth = depth / 2;
}
}
}
}
_createSurfaceList();
// Get final internal format
mFormat = getBuffer(0,0)->getFormat();
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_GL13_nglCompressedTexImage1D(JNIEnv *__env, jclass clazz, jint target, jint level, jint internalformat, jint width, jint border, jint imageSize, jlong dataAddress, jlong __functionAddress) {
const GLvoid *data = (const GLvoid *)(intptr_t)dataAddress;
glCompressedTexImage1DPROC glCompressedTexImage1D = (glCompressedTexImage1DPROC)(intptr_t)__functionAddress;
UNUSED_PARAMS(__env, clazz)
glCompressedTexImage1D(target, level, internalformat, width, border, imageSize, data);
}
void gl4es_glCompressedMultiTexImage1D(GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const GLvoid *data) {
text(glCompressedTexImage1D(target, level, internalformat, width, border, imageSize, data));
}
void OGLTexture1D::CreateHWResource(ArrayRef<ElementInitData> init_data, float4 const * clear_value_hint)
{
KFL_UNUSED(clear_value_hint);
GLint glinternalFormat;
GLenum glformat;
GLenum gltype;
OGLMapping::MappingFormat(glinternalFormat, glformat, gltype, format_);
if (sample_count_ <= 1)
{
uint32_t const pbo_size = mipmap_start_offset_.back() * array_size_;
if (glloader_GL_VERSION_4_5() || glloader_GL_ARB_direct_state_access())
{
glTextureParameteri(texture_, GL_TEXTURE_MAX_LEVEL, num_mip_maps_ - 1);
glNamedBufferStorage(pbo_, pbo_size, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_DYNAMIC_STORAGE_BIT);
uint32_t const w0 = this->Width(0);
if (array_size_ > 1)
{
glTextureStorage2D(texture_, num_mip_maps_, glinternalFormat, w0, array_size_);
}
else
{
glTextureStorage1D(texture_, num_mip_maps_, glinternalFormat, w0);
}
if (!init_data.empty())
{
for (uint32_t array_index = 0; array_index < array_size_; ++ array_index)
{
for (uint32_t level = 0; level < num_mip_maps_; ++ level)
{
uint32_t const w = this->Width(level);
GLvoid const * data = init_data[array_index * num_mip_maps_ + level].data;
if (IsCompressedFormat(format_))
{
uint32_t const block_size = NumFormatBytes(format_) * 4;
GLsizei const image_size = ((w + 3) / 4) * block_size;
if (array_size_ > 1)
{
glCompressedTextureSubImage2D(texture_, level, 0, array_index,
w, 1, glformat, image_size, data);
}
else
{
glCompressedTextureSubImage1D(texture_, level, 0,
w, glformat, image_size, data);
}
}
else
{
if (array_size_ > 1)
{
glTextureSubImage2D(texture_, level, 0, array_index, w, 1,
glformat, gltype, data);
}
else
{
glTextureSubImage1D(texture_, level, 0, w, glformat, gltype, data);
}
}
}
}
}
}
else
{
auto& re = *checked_cast<OGLRenderEngine*>(&Context::Instance().RenderFactoryInstance().RenderEngineInstance());
re.BindTexture(0, target_type_, texture_);
glTexParameteri(target_type_, GL_TEXTURE_MAX_LEVEL, num_mip_maps_ - 1);
re.BindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo_);
if (glloader_GL_VERSION_4_4() || glloader_GL_ARB_buffer_storage())
{
glBufferStorage(GL_PIXEL_UNPACK_BUFFER, pbo_size, nullptr, GL_DYNAMIC_STORAGE_BIT);
}
else
{
glBufferData(GL_PIXEL_UNPACK_BUFFER, pbo_size, nullptr, GL_STREAM_COPY);
}
re.BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
if (glloader_GL_VERSION_4_2() || glloader_GL_ARB_texture_storage())
{
uint32_t const w0 = this->Width(0);
if (array_size_ > 1)
{
glTexStorage2D(target_type_, num_mip_maps_, glinternalFormat, w0, array_size_);
}
else
{
glTexStorage1D(target_type_, num_mip_maps_, glinternalFormat, w0);
}
if (!init_data.empty())
{
for (uint32_t array_index = 0; array_index < array_size_; ++ array_index)
{
for (uint32_t level = 0; level < num_mip_maps_; ++ level)
{
uint32_t const w = this->Width(level);
GLvoid const * data = init_data[array_index * num_mip_maps_ + level].data;
if (IsCompressedFormat(format_))
{
uint32_t const block_size = NumFormatBytes(format_) * 4;
GLsizei const image_size = ((w + 3) / 4) * block_size;
if (array_size_ > 1)
{
glCompressedTexSubImage2D(target_type_, level, 0, array_index,
w, 1, glformat, image_size, data);
}
else
{
glCompressedTexSubImage1D(target_type_, level, 0,
w, glformat, image_size, data);
}
}
else
{
if (array_size_ > 1)
{
glTexSubImage2D(target_type_, level, 0, array_index, w, 1,
glformat, gltype, data);
}
else
{
glTexSubImage1D(target_type_, level, 0, w, glformat, gltype, data);
}
}
}
}
}
}
else
{
for (uint32_t array_index = 0; array_index < array_size_; ++ array_index)
{
for (uint32_t level = 0; level < num_mip_maps_; ++ level)
{
uint32_t const w = this->Width(level);
if (IsCompressedFormat(format_))
{
uint32_t const block_size = NumFormatBytes(format_) * 4;
GLsizei const image_size = ((w + 3) / 4) * block_size;
if (array_size_ > 1)
{
if (0 == array_index)
{
glCompressedTexImage2D(target_type_, level, glinternalFormat,
w, array_size_, 0, image_size * array_size_, nullptr);
}
if (!init_data.empty())
{
glCompressedTexSubImage2D(target_type_, level, 0, array_index, w, 1,
glformat, image_size, init_data[array_index * num_mip_maps_ + level].data);
}
}
else
{
glCompressedTexImage1D(target_type_, level, glinternalFormat,
w, 0, image_size,
init_data.empty() ? nullptr : init_data[array_index * num_mip_maps_ + level].data);
}
}
else
{
if (array_size_ > 1)
{
if (0 == array_index)
{
glTexImage2D(target_type_, level, glinternalFormat, w, array_size_, 0, glformat, gltype, nullptr);
}
if (!init_data.empty())
{
glTexSubImage2D(target_type_, level, 0, array_index, w, 1,
glformat, gltype, init_data[array_index * num_mip_maps_ + level].data);
}
}
else
{
glTexImage1D(target_type_, level, glinternalFormat, w, 0, glformat, gltype,
init_data.empty() ? nullptr : init_data[array_index * num_mip_maps_ + level].data);
}
}
}
}
}
}
}
else
{
glBindRenderbuffer(GL_RENDERBUFFER, texture_);
glRenderbufferStorageMultisample(GL_RENDERBUFFER, sample_count_, glinternalFormat, width_, 1);
}
hw_res_ready_ = true;
}
bool Texture :: load1D ( const char * fileName )
{
TexImage * image = loadTexImage ( fileName );
if ( image == NULL )
return false;
if ( image -> getImageType () != TexImage :: image2D || image -> getHeight () != 1 )
{
delete image;
return false;
}
setParamsFromTexImage ( image, GL_TEXTURE_1D );
glGenTextures ( 1, &id );
glBindTexture ( target, id );
glPixelStorei ( GL_UNPACK_ALIGNMENT, 1 ); // set 1-byte alignment
glTexParameteri ( target, GL_TEXTURE_WRAP_S, GL_REPEAT ); // set default params for texture
if ( !image -> isCompressed () ) // not compressed image
{
glTexImage1D ( target, 0, getFormat ().getInternalFormat (), width, 0, getFormat ().getFormat (), image -> getGlType (), image -> imageData () );
if ( autoMipmaps )
glGenerateMipmap ( target );
}
else
{
int mipmaps = image -> getNumLevels ();
int w = width;
int h = height;
byte * ptr = image -> imageData ( 0, 0 );
glTexParameteri ( target, GL_TEXTURE_MAX_LEVEL, mipmaps - 1 );
for ( int i = 0; i < mipmaps; i++ )
{
int size = image -> imageDataSize ( 0, i );
glCompressedTexImage1D ( target, i, getFormat ().getInternalFormat (), w, 0, size, ptr );
if ( ( w = w / 2 ) < 1 )
w = 1;
if ( ( h = h / 2 ) < 1 )
h = 1;
ptr += size;
}
}
if ( autoMipmaps )
{
glTexParameteri ( target, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
glTexParameteri ( target, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
}
else
{
glTexParameteri ( target, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexParameteri ( target, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
}
glBindTexture ( target, 0 );
delete image;
return true;
}
