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texture memory

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This commit is contained in:
Sam Gateau 2015-02-06 12:17:51 -08:00
parent c90c0b53c3
commit e9add29af1
3 changed files with 24 additions and 4 deletions
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8
libraries/gpu/src/gpu/GLBackendTexture.cpp
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@ -271,7 +271,12 @@ void GLBackend::syncGPUObject(const Texture& texture) {
if (texture.isAutogenerateMips()) {
glGenerateMipmap(GL_TEXTURE_2D);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
}
// At this point the mip piels have been loaded, we can notify
texture.notifyGPULoaded(0);
glBindTexture(GL_TEXTURE_2D, boundTex);
object->_contentStamp = texture.getDataStamp();
}
@ -302,6 +307,9 @@ void GLBackend::syncGPUObject(const Texture& texture) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
}
// At this point the mip piels have been loaded, we can notify
texture.notifyGPULoaded(0);
glBindTexture(GL_TEXTURE_2D, boundTex);
object->_storageStamp = texture.getStamp();
object->_size = texture.getSize();

11
libraries/gpu/src/gpu/Texture.cpp
View file

@ -17,7 +17,8 @@ using namespace gpu;
Texture::Pixels::Pixels(const Element& format, Size size, const Byte* bytes) :
_sysmem(size, bytes),
_format(format) {
_format(format),
_isGPULoaded(false) {
}
Texture::Pixels::~Pixels() {
@ -53,6 +54,14 @@ const Texture::PixelsPointer Texture::Storage::getMip(uint16 level) const {
return PixelsPointer();
}
void Texture::Storage::notifyGPULoaded(uint16 level) const {
PixelsPointer mip = getMip(level);
if (mip) {
mip->_isGPULoaded = true;
mip->_sysmem.resize(0);
}
}
bool Texture::Storage::isMipAvailable(uint16 level) const {
PixelsPointer mip = getMip(level);
return (mip && mip->_sysmem.getSize());

9
libraries/gpu/src/gpu/Texture.h
View file

@ -26,8 +26,9 @@ public:
Pixels(const Element& format, Size size, const Byte* bytes);
~Pixels();
Sysmem _sysmem;
mutable Sysmem _sysmem;
Element _format;
mutable bool _isGPULoaded;
};
typedef QSharedPointer< Pixels > PixelsPointer;
@ -42,7 +43,8 @@ public:
virtual bool allocateMip(uint16 level);
virtual bool assignMipData(uint16 level, const Element& format, Size size, const Byte* bytes);
virtual bool isMipAvailable(uint16 level) const;
virtual void notifyGPULoaded(uint16 level) const;
protected:
Texture* _texture;
std::vector<PixelsPointer> _mips;
@ -168,7 +170,8 @@ public:
// Access the the sub mips
bool isStoredMipAvailable(uint16 level) const { return _storage->isMipAvailable(level); }
const PixelsPointer accessStoredMip(uint16 level) const { return _storage->getMip(level); }
void notifyGPULoaded(uint16 level) const { return _storage->notifyGPULoaded(level); }
// access sizes for the stored mips
uint16 getStoredMipWidth(uint16 level) const;
uint16 getStoredMipHeight(uint16 level) const;