Added support for texture mipmapping with trilinear filtering.

This commit is contained in:
Leon Styhre 2022-09-05 23:36:49 +02:00
parent 1bbf32a6f5
commit 9d46625739
12 changed files with 52 additions and 20 deletions

View file

@ -48,6 +48,7 @@ ImageComponent::ImageComponent(bool forceLoad, bool dynamic)
, mDynamic {dynamic}
, mRotateByTargetSize {false}
, mLinearInterpolation {false}
, mMipmapping {false}
, mTopLeftCrop {0.0f, 0.0f}
, mBottomRightCrop {1.0f, 1.0f}
, mClipRegion {0.0f, 0.0f, 0.0f, 0.0f}
@ -137,7 +138,7 @@ void ImageComponent::setImage(const std::string& path, bool tile)
mTexture.reset();
else
mTexture = TextureResource::get(mDefaultPath, tile, mForceLoad, mDynamic,
mLinearInterpolation);
mLinearInterpolation, mMipmapping);
resize(true);
}
else {
@ -147,14 +148,14 @@ void ImageComponent::setImage(const std::string& path, bool tile)
// we perform the actual rasterization to have the cache entry updated with the proper
// texture. For SVG images this requires that every call to setImage is made only after
// a call to setResize or setMaxSize (so the requested size is known upfront).
mTexture = TextureResource::get(path, tile, mForceLoad, mDynamic, mLinearInterpolation, 0,
0, 0.0f, 0.0f);
mTexture = TextureResource::get(path, tile, mForceLoad, mDynamic, mLinearInterpolation,
mMipmapping, 0, 0, 0.0f, 0.0f);
if (isScalable) {
resize(false);
mTexture.reset();
mTexture = TextureResource::get(path, tile, mForceLoad, mDynamic, mLinearInterpolation,
static_cast<size_t>(mSize.x),
mMipmapping, static_cast<size_t>(mSize.x),
static_cast<size_t>(mSize.y), mTileWidth, mTileHeight);
mTexture->setScalableNonAspect(mScalableNonAspect);
mTexture->rasterizeAt(mSize.x, mSize.y);

View file

@ -92,6 +92,8 @@ public:
void setRotateByTargetSize(bool rotate) { mRotateByTargetSize = rotate; }
// Whether to use smooth texture magnification by utilizing linear interpolation.
void setLinearInterpolation(bool state) { mLinearInterpolation = state; }
// Whether to use mipmapping and trilinear filtering.
void setMipmapping(bool state) { mMipmapping = state; }
// Returns the size of the current texture, or (0, 0) if none is loaded.
// May be different than drawn size (use getSize() for that).
@ -152,6 +154,7 @@ private:
bool mDynamic;
bool mRotateByTargetSize;
bool mLinearInterpolation;
bool mMipmapping;
glm::vec2 mTopLeftCrop;
glm::vec2 mBottomRightCrop;

View file

@ -66,7 +66,7 @@ void NinePatchComponent::buildVertices()
}
glm::vec2 texSize {relCornerSize * 3.0f};
mTexture = TextureResource::get(mPath, false, false, false, false,
mTexture = TextureResource::get(mPath, false, false, false, false, false,
static_cast<size_t>(texSize.x), static_cast<size_t>(texSize.y));
mTexture->rasterizeAt(texSize.x, texSize.y);

View file

@ -179,7 +179,7 @@ void RatingComponent::applyTheme(const std::shared_ptr<ThemeData>& theme,
std::string path {std::string(elem->get<std::string>("filledPath"))};
if (Utils::FileSystem::isRegularFile(path) || Utils::FileSystem::isSymlink(path)) {
auto tempImage =
TextureResource::get(path, false, false, false, false, 0, 0, 0.0f, 0.0f);
TextureResource::get(path, false, false, false, false, false, 0, 0, 0.0f, 0.0f);
mImageRatio = static_cast<float>(tempImage->getSize().x) /
static_cast<float>(tempImage->getSize().y);
}

View file

@ -210,6 +210,7 @@ void CarouselComponent<T>::addEntry(Entry& entry, const std::shared_ptr<ThemeDat
(!defaultPath.empty() && ResourceManager::getInstance().fileExists(defaultPath))) {
auto item = std::make_shared<ImageComponent>(false, dynamic);
item->setLinearInterpolation(mLinearInterpolation);
item->setMipmapping(true);
item->setMaxSize(mItemSize * mItemScale);
item->applyTheme(theme, "system", "image_logo",
ThemeFlags::PATH | ThemeFlags::COLOR);
@ -223,6 +224,7 @@ void CarouselComponent<T>::addEntry(Entry& entry, const std::shared_ptr<ThemeDat
ResourceManager::getInstance().fileExists(entry.data.itemPath)) {
auto item = std::make_shared<ImageComponent>(false, dynamic);
item->setLinearInterpolation(mLinearInterpolation);
item->setMipmapping(true);
item->setMaxSize(mItemSize * mItemScale);
item->setImage(entry.data.itemPath);
item->applyTheme(theme, "system", "", ThemeFlags::ALL);
@ -233,6 +235,7 @@ void CarouselComponent<T>::addEntry(Entry& entry, const std::shared_ptr<ThemeDat
ResourceManager::getInstance().fileExists(entry.data.defaultItemPath)) {
auto defaultItem = std::make_shared<ImageComponent>(false, dynamic);
defaultItem->setLinearInterpolation(mLinearInterpolation);
defaultItem->setMipmapping(true);
defaultItem->setMaxSize(mItemSize * mItemScale);
defaultItem->setImage(entry.data.defaultItemPath);
defaultItem->applyTheme(theme, "system", "", ThemeFlags::ALL);
@ -306,6 +309,7 @@ void CarouselComponent<T>::updateEntry(Entry& entry, const std::shared_ptr<Theme
if (entry.data.itemPath != "") {
auto item = std::make_shared<ImageComponent>(false, true);
item->setLinearInterpolation(mLinearInterpolation);
item->setMipmapping(true);
item->setMaxSize(mItemSize * mItemScale);
item->setImage(entry.data.itemPath);
item->applyTheme(theme, "system", "", ThemeFlags::ALL);

View file

@ -184,6 +184,7 @@ public:
virtual unsigned int createTexture(const TextureType type,
const bool linearMinify,
const bool linearMagnify,
const bool mipmapping,
const bool repeat,
const unsigned int width,
const unsigned int height,

View file

@ -240,13 +240,13 @@ bool RendererOpenGL::createContext()
GL_CHECK_ERROR(glBindVertexArray(mVertexBuffer2));
uint8_t data[4] {255, 255, 255, 255};
mWhiteTexture = createTexture(TextureType::RGBA, false, false, true, 1, 1, data);
mWhiteTexture = createTexture(TextureType::RGBA, false, false, false, true, 1, 1, data);
mPostProcTexture1 = createTexture(TextureType::RGBA, false, false, false,
mPostProcTexture1 = createTexture(TextureType::RGBA, false, false, false, false,
static_cast<unsigned int>(getScreenWidth()),
static_cast<unsigned int>(getScreenHeight()), nullptr);
mPostProcTexture2 = createTexture(TextureType::RGBA, false, false, false,
mPostProcTexture2 = createTexture(TextureType::RGBA, false, false, false, false,
static_cast<unsigned int>(getScreenWidth()),
static_cast<unsigned int>(getScreenHeight()), nullptr);
@ -277,8 +277,8 @@ void RendererOpenGL::destroyContext()
void RendererOpenGL::setMatrix(const glm::mat4& matrix)
{
mTrans = matrix;
mTrans = getProjectionMatrix() * mTrans;
// Calculate the projection matrix.
mTrans = getProjectionMatrix() * matrix;
}
void RendererOpenGL::setScissor(const Rect& scissor)
@ -337,6 +337,7 @@ void RendererOpenGL::swapBuffers()
unsigned int RendererOpenGL::createTexture(const TextureType type,
const bool linearMinify,
const bool linearMagnify,
const bool mipmapping,
const bool repeat,
const unsigned int width,
const unsigned int height,
@ -354,15 +355,25 @@ unsigned int RendererOpenGL::createTexture(const TextureType type,
GL_CHECK_ERROR(glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
repeat ? static_cast<GLfloat>(GL_REPEAT) :
static_cast<GLfloat>(GL_CLAMP_TO_EDGE)));
GL_CHECK_ERROR(glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
linearMinify ? static_cast<GLfloat>(GL_LINEAR) :
static_cast<GLfloat>(GL_NEAREST)));
if (mipmapping) {
GL_CHECK_ERROR(glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
static_cast<GLfloat>(GL_LINEAR_MIPMAP_LINEAR)));
}
else {
GL_CHECK_ERROR(glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
linearMinify ? static_cast<GLfloat>(GL_LINEAR) :
static_cast<GLfloat>(GL_NEAREST)));
}
GL_CHECK_ERROR(glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
linearMagnify ? static_cast<GLfloat>(GL_LINEAR) :
static_cast<GLfloat>(GL_NEAREST)));
GL_CHECK_ERROR(glTexImage2D(GL_TEXTURE_2D, 0, textureType, width, height, 0, textureType,
GL_UNSIGNED_BYTE, data));
if (mipmapping)
GL_CHECK_ERROR(glGenerateMipmap(GL_TEXTURE_2D));
return texture;
}

View file

@ -46,6 +46,7 @@ public:
unsigned int createTexture(const TextureType type,
const bool linearMinify,
const bool linearMagnify,
const bool mipmapping,
const bool repeat,
const unsigned int width,
const unsigned int height,

View file

@ -39,6 +39,7 @@ TextureData::TextureData(bool tile)
, mHasRGBAData {false}
, mPendingRasterization {false}
, mLinearMagnify {false}
, mMipmapping {false}
{
}
@ -240,8 +241,8 @@ bool TextureData::uploadAndBind()
// Upload texture.
mTextureID =
mRenderer->createTexture(Renderer::TextureType::RGBA, true, mLinearMagnify, mTile,
static_cast<const unsigned int>(mWidth),
mRenderer->createTexture(Renderer::TextureType::RGBA, true, mLinearMagnify, mMipmapping,
mTile, static_cast<const unsigned int>(mWidth),
static_cast<const unsigned int>(mHeight), mDataRGBA.data());
}
return true;

View file

@ -70,6 +70,8 @@ public:
void setScalableNonAspect(bool state) { mScalableNonAspect = state; }
// Whether to use linear filtering when magnifying the texture.
void setLinearMagnify(bool state) { mLinearMagnify = state; }
// Whether to use mipmapping and trilinear filtering.
void setMipmapping(bool state) { mMipmapping = state; }
// Has the image been loaded but not yet been rasterized as the size was not known?
const bool getPendingRasterization() { return mPendingRasterization; }
@ -98,6 +100,7 @@ private:
std::atomic<bool> mHasRGBAData;
std::atomic<bool> mPendingRasterization;
bool mLinearMagnify;
bool mMipmapping;
bool mReloadable;
};

View file

@ -20,6 +20,7 @@ TextureResource::TextureResource(const std::string& path,
bool tile,
bool dynamic,
bool linearMagnify,
bool mipmapping,
bool scalable)
: mTextureData {nullptr}
, mForceLoad {false}
@ -35,6 +36,7 @@ TextureResource::TextureResource(const std::string& path,
data->initFromPath(path);
data->setTileSize(tileWidth, tileHeight);
data->setLinearMagnify(linearMagnify);
data->setMipmapping(mipmapping);
// Force the texture manager to load it using a blocking load.
sTextureDataManager.load(data, true);
}
@ -44,6 +46,7 @@ TextureResource::TextureResource(const std::string& path,
data->initFromPath(path);
data->setTileSize(tileWidth, tileHeight);
data->setLinearMagnify(linearMagnify);
data->setMipmapping(mipmapping);
// Load it so we can read the width/height.
data->load();
}
@ -154,6 +157,7 @@ std::shared_ptr<TextureResource> TextureResource::get(const std::string& path,
bool forceLoad,
bool dynamic,
bool linearMagnify,
bool mipmapping,
size_t width,
size_t height,
float tileWidth,
@ -161,8 +165,8 @@ std::shared_ptr<TextureResource> TextureResource::get(const std::string& path,
{
const std::string canonicalPath {Utils::FileSystem::getCanonicalPath(path)};
if (canonicalPath.empty()) {
std::shared_ptr<TextureResource> tex(
new TextureResource("", tileWidth, tileHeight, tile, false, linearMagnify, false));
std::shared_ptr<TextureResource> tex(new TextureResource(
"", tileWidth, tileHeight, tile, false, linearMagnify, mipmapping, false));
// Make sure we get properly deinitialized even though we do nothing on reinitialization.
ResourceManager::getInstance().addReloadable(tex);
return tex;
@ -207,8 +211,9 @@ std::shared_ptr<TextureResource> TextureResource::get(const std::string& path,
}
// Need to create it.
std::shared_ptr<TextureResource> tex {std::shared_ptr<TextureResource>(new TextureResource(
std::get<0>(key), tileWidth, tileHeight, tile, dynamic, linearMagnify, isScalable))};
std::shared_ptr<TextureResource> tex {std::shared_ptr<TextureResource>(
new TextureResource(std::get<0>(key), tileWidth, tileHeight, tile, dynamic, linearMagnify,
mipmapping, isScalable))};
std::shared_ptr<TextureData> data {sTextureDataManager.get(tex.get())};
if (!isScalable || (isScalable && width != 0.0f && height != 0.0f)) {

View file

@ -31,6 +31,7 @@ public:
bool forceLoad = false,
bool dynamic = true,
bool linearMagnify = false,
bool mipmapping = false,
size_t width = 0,
size_t height = 0,
float tileWidth = 0.0f,
@ -86,6 +87,7 @@ protected:
bool tile,
bool dynamic,
bool linearMagnify,
bool mipmapping,
bool scalable);
virtual void unload(ResourceManager& rm);
virtual void reload(ResourceManager& rm);