Implement Array, Cubemap, and Volume texture types (issue #1111).

- Add love.graphics.newArrayImage, newCubeImage, and newVolumeImage.
- Add love.graphics.newCanvas(w, h, layers) and newCanvas(w, h, layers, settings). Add ‘type’ field to the settings table of newCanvas.

- Add new love.graphics.setCanvas variants: setCanvas(canvas, slice), and setCanvas(canvastable) where canvastable is in the format: {{canvas1, layer=2}, {canvas2, face=5}}

- Add Texture:getTextureType, getDepth, getLayerCount, getMipmapCount, and getFormat.

- Remove Image:getData and Image:refresh.
- Add Image:replacePixels(imagedata [, slice] [, mipmap]).

- Update Canvas:newImageData to accept a slice argument.

- Add love.image.newCubeFaces(imagedata).

--HG--
branch : minor
This commit is contained in:
Alex Szpakowski
2017-02-20 14:58:13 -04:00
parent d70fe5cb89
commit 73fd45558b
91 changed files with 3160 additions and 2003 deletions
+229 -261
View File
@@ -26,16 +26,6 @@
// STD
#include <algorithm> // for min/max
#ifdef LOVE_ANDROID
// log2 is not declared in the math.h shipped with the Android NDK
#include <cmath>
inline double log2(double n)
{
// log(n)/log(2) is log2.
return std::log(n) / std::log(2);
}
#endif
namespace love
{
namespace graphics
@@ -45,114 +35,38 @@ namespace opengl
float Image::maxMipmapSharpness = 0.0f;
static int getMipmapCount(int basewidth, int baseheight)
{
return (int) log2(std::max(basewidth, baseheight)) + 1;
}
template <typename T>
static bool verifyMipmapLevels(const std::vector<T> &miplevels)
{
int numlevels = (int) miplevels.size();
if (numlevels == 1)
return false;
int width = miplevels[0]->getWidth();
int height = miplevels[0]->getHeight();
auto format = miplevels[0]->getFormat();
int expectedlevels = getMipmapCount(width, height);
// All mip levels must be present when not using auto-generated mipmaps.
if (numlevels != expectedlevels)
throw love::Exception("Image does not have all required mipmap levels (expected %d, got %d)", expectedlevels, numlevels);
// Verify the size of each mip level.
for (int i = 1; i < numlevels; i++)
{
width = std::max(width / 2, 1);
height = std::max(height / 2, 1);
if (miplevels[i]->getWidth() != width)
throw love::Exception("Width of image mipmap level %d is incorrect (expected %d, got %d)", i+1, width, miplevels[i]->getWidth());
if (miplevels[i]->getHeight() != height)
throw love::Exception("Height of image mipmap level %d is incorrect (expected %d, got %d)", i+1, height, miplevels[i]->getHeight());
if (miplevels[i]->getFormat() != format)
throw love::Exception("All image mipmap levels must have the same format.");
}
return true;
}
Image::Image(const std::vector<love::image::ImageData *> &imagedata, const Settings &settings)
: love::graphics::Image(settings)
Image::Image(TextureType textype, PixelFormat format, int width, int height, int slices, const Settings &settings)
: love::graphics::Image(Slices(textype), settings, false)
, texture(0)
, mipmapSharpness(defaultMipmapSharpness)
, compressed(false)
, sRGB(false)
, usingDefaultTexture(false)
, textureMemorySize(0)
{
if (imagedata.empty())
throw love::Exception("");
if (isPixelFormatCompressed(format))
throw love::Exception("This constructor is only supported for non-compressed pixel formats.");
pixelWidth = imagedata[0]->getWidth();
pixelHeight = imagedata[0]->getHeight();
if (textype == TEXTURE_VOLUME)
depth = slices;
else if (textype == TEXTURE_2D_ARRAY)
layers = slices;
width = (int) (pixelWidth / settings.pixeldensity + 0.5);
height = (int) (pixelHeight / settings.pixeldensity + 0.5);
if (verifyMipmapLevels(imagedata))
this->settings.mipmaps = true;
for (const auto &id : imagedata)
data.push_back(id);
format = data[0]->getFormat();
preload();
loadVolatile();
init(format, width, height, settings);
}
Image::Image(const std::vector<love::image::CompressedImageData *> &compresseddata, const Settings &settings)
: love::graphics::Image(settings)
Image::Image(const Slices &slices, const Settings &settings)
: love::graphics::Image(slices, settings, true)
, texture(0)
, mipmapSharpness(defaultMipmapSharpness)
, compressed(true)
, sRGB(false)
, compressed(false)
, usingDefaultTexture(false)
, textureMemorySize(0)
{
pixelWidth = compresseddata[0]->getWidth(0);
pixelHeight = compresseddata[0]->getHeight(0);
if (texType == TEXTURE_2D_ARRAY)
this->layers = data.getSliceCount();
else if (texType == TEXTURE_VOLUME)
this->depth = data.getSliceCount();
width = (int) (pixelWidth / settings.pixeldensity + 0.5);
height = (int) (pixelHeight / settings.pixeldensity + 0.5);
if (verifyMipmapLevels(compresseddata))
this->settings.mipmaps = true;
else if (settings.mipmaps && getMipmapCount(pixelWidth, pixelHeight) != compresseddata[0]->getMipmapCount())
{
if (compresseddata[0]->getMipmapCount() == 1)
this->settings.mipmaps = false;
else
{
throw love::Exception("Image cannot have mipmaps: compressed image data does not have all required mipmap levels (expected %d, got %d)",
getMipmapCount(width, height),
compresseddata[0]->getMipmapCount());
}
}
for (image::CompressedImageData *cd : compresseddata)
cdata.push_back(cd);
format = cdata[0]->getFormat();
preload();
loadVolatile();
love::image::ImageDataBase *slice = data.get(0, 0);
init(slice->getFormat(), slice->getWidth(), slice->getHeight(), settings);
}
Image::~Image()
@@ -160,56 +74,41 @@ Image::~Image()
unloadVolatile();
}
void Image::preload()
void Image::init(PixelFormat fmt, int w, int h, const Settings &settings)
{
for (int i = 0; i < 4; i++)
vertices[i].color = Color(255, 255, 255, 255);
pixelWidth = w;
pixelHeight = h;
// Vertices are ordered for use with triangle strips:
// 0---2
// | / |
// 1---3
vertices[0].x = 0.0f;
vertices[0].y = 0.0f;
vertices[1].x = 0.0f;
vertices[1].y = (float) height;
vertices[2].x = (float) width;
vertices[2].y = 0.0f;
vertices[3].x = (float) width;
vertices[3].y = (float) height;
width = (int) (pixelWidth / settings.pixeldensity + 0.5);
height = (int) (pixelHeight / settings.pixeldensity + 0.5);
vertices[0].s = 0.0f;
vertices[0].t = 0.0f;
vertices[1].s = 0.0f;
vertices[1].t = 1.0f;
vertices[2].s = 1.0f;
vertices[2].t = 0.0f;
vertices[3].s = 1.0f;
vertices[3].t = 1.0f;
mipmapCount = mipmapsType == MIPMAPS_NONE ? 1 : getMipmapCount(w, h);
format = fmt;
compressed = isPixelFormatCompressed(format);
if (settings.mipmaps)
if (compressed && mipmapsType == MIPMAPS_GENERATED)
mipmapsType = MIPMAPS_NONE;
if (getMipmapCount() > 1)
filter.mipmap = defaultMipmapFilter;
if (!isGammaCorrect())
settings.linear = false;
if (isGammaCorrect() && !settings.linear)
sRGB = true;
else
sRGB = false;
loadVolatile();
initVertices();
}
void Image::generateMipmaps()
{
// The GL_GENERATE_MIPMAP texparameter is set in loadVolatile if we don't
// have support for glGenerateMipmap.
if (settings.mipmaps && !isCompressed() &&
(GLAD_ES_VERSION_2_0 || GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_object))
if (getMipmapCount() > 1 && !isCompressed() &&
(GLAD_ES_VERSION_2_0 || GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_object || GLAD_EXT_framebuffer_object))
{
if (gl.bugs.generateMipmapsRequiresTexture2DEnable)
glEnable(GL_TEXTURE_2D);
GLenum gltextype = OpenGL::getGLTextureType(texType);
glGenerateMipmap(GL_TEXTURE_2D);
if (gl.bugs.generateMipmapsRequiresTexture2DEnable)
glEnable(gltextype);
glGenerateMipmap(gltextype);
}
}
@@ -217,65 +116,120 @@ void Image::loadDefaultTexture()
{
usingDefaultTexture = true;
gl.bindTextureToUnit(texture, 0, false);
gl.bindTextureToUnit(this, 0, false);
setFilter(filter);
bool isSRGB = false;
gl.rawTexStorage(texType, 1, PIXELFORMAT_RGBA8, isSRGB, 2, 2, 1);
// A nice friendly checkerboard to signify invalid textures...
GLubyte px[] = {0xFF,0xFF,0xFF,0xFF, 0xFF,0xA0,0xA0,0xFF,
0xFF,0xA0,0xA0,0xFF, 0xFF,0xFF,0xFF,0xFF};
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, px);
int slices = texType == TEXTURE_CUBE ? 6 : 1;
Rect rect = {0, 0, 2, 2};
for (int slice = 0; slice < slices; slice++)
uploadByteData(PIXELFORMAT_RGBA8, px, sizeof(px), rect, 0, slice);
}
void Image::loadFromCompressedData()
void Image::loadData()
{
OpenGL::TextureFormat fmt = OpenGL::convertPixelFormat(format, false, sRGB);
int mipcount = getMipmapCount();
int slicecount = 1;
if (isGammaCorrect() && !sRGB)
settings.linear = true;
if (texType == TEXTURE_VOLUME)
slicecount = getDepth();
else if (texType == TEXTURE_2D_ARRAY)
slicecount = getLayerCount();
else if (texType == TEXTURE_CUBE)
slicecount = 6;
int count = 1;
if (!isCompressed())
gl.rawTexStorage(texType, mipcount, format, sRGB, pixelWidth, pixelHeight, texType == TEXTURE_VOLUME ? depth : layers);
if (settings.mipmaps && cdata.size() > 1)
count = (int) cdata.size();
else if (settings.mipmaps)
count = cdata[0]->getMipmapCount();
if (mipmapsType == MIPMAPS_GENERATED)
mipcount = 1;
for (int i = 0; i < count; i++)
int w = pixelWidth;
int h = pixelHeight;
int d = depth;
OpenGL::TextureFormat fmt = gl.convertPixelFormat(format, false, sRGB);
for (int mip = 0; mip < mipcount; mip++)
{
// Compressed image mipmaps can come from separate CompressedImageData
// objects, or all from a single object.
auto cd = cdata.size() > 1 ? cdata[i].get() : cdata[0].get();
int datamip = cdata.size() > 1 ? 0 : i;
if (isCompressed() && (texType == TEXTURE_2D_ARRAY || texType == TEXTURE_VOLUME))
{
size_t mipsize = 0;
glCompressedTexImage2D(GL_TEXTURE_2D, i, fmt.internalformat,
cd->getWidth(datamip), cd->getHeight(datamip), 0,
(GLsizei) cd->getSize(datamip), cd->getData(datamip));
}
}
if (texType == TEXTURE_2D_ARRAY || texType == TEXTURE_VOLUME)
{
for (int slice = 0; slice < data.getSliceCount(mip); slice++)
mipsize += data.get(slice, mip)->getSize();
}
void Image::loadFromImageData()
{
OpenGL::TextureFormat fmt = OpenGL::convertPixelFormat(format, false, sRGB);
GLenum gltarget = OpenGL::getGLTextureType(texType);
glCompressedTexImage3D(gltarget, mip, fmt.internalformat, w, h, d, 0, mipsize, nullptr);
}
if (isGammaCorrect() && !sRGB)
settings.linear = true;
for (int slice = 0; slice < slicecount; slice++)
{
love::image::ImageDataBase *id = data.get(slice, mip);
int mipcount = settings.mipmaps ? (int) data.size() : 1;
if (id != nullptr)
uploadImageData(id, mip, slice);
}
for (int i = 0; i < mipcount; i++)
{
love::image::ImageData *id = data[i].get();
love::thread::Lock lock(id->getMutex());
w = std::max(w / 2, 1);
h = std::max(h / 2, 1);
glTexImage2D(GL_TEXTURE_2D, i, fmt.internalformat, id->getWidth(), id->getHeight(),
0, fmt.externalformat, fmt.type, id->getData());
if (texType == TEXTURE_VOLUME)
d = std::max(d / 2, 1);
}
if (data.size() <= 1)
if (mipmapsType == MIPMAPS_GENERATED)
generateMipmaps();
}
void Image::uploadByteData(PixelFormat pixelformat, const void *data, size_t size, const Rect &r, int level, int slice)
{
OpenGL::TextureFormat fmt = OpenGL::convertPixelFormat(pixelformat, false, sRGB);
GLenum gltarget = OpenGL::getGLTextureType(texType);
if (texType == TEXTURE_CUBE)
gltarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X + slice;
if (isPixelFormatCompressed(pixelformat))
{
if (r.x != 0 || r.y != 0)
throw love::Exception("x and y parameters must be 0 for compressed images.");
if (texType == TEXTURE_2D || texType == TEXTURE_CUBE)
glCompressedTexImage2D(gltarget, level, fmt.internalformat, r.w, r.h, 0, size, data);
else if (texType == TEXTURE_2D_ARRAY || texType == TEXTURE_VOLUME)
glCompressedTexSubImage3D(gltarget, level, 0, 0, slice, r.w, r.h, 1, fmt.internalformat, size, data);
}
else
{
if (texType == TEXTURE_2D || texType == TEXTURE_CUBE)
glTexSubImage2D(gltarget, level, r.x, r.y, r.w, r.h, fmt.externalformat, fmt.type, data);
else if (texType == TEXTURE_2D_ARRAY || texType == TEXTURE_VOLUME)
glTexSubImage3D(gltarget, level, r.x, r.y, slice, r.w, r.h, 1, fmt.externalformat, fmt.type, data);
}
}
void Image::uploadImageData(love::image::ImageDataBase *d, int level, int slice)
{
love::image::ImageData *id = dynamic_cast<love::image::ImageData *>(d);
love::thread::EmptyLock lock;
if (id != nullptr)
lock.setLock(id->getMutex());
Rect rect = {0, 0, d->getWidth(), d->getHeight()};
uploadByteData(d->getFormat(), d->getData(), d->getSize(), rect, level, slice);
}
bool Image::loadVolatile()
{
if (texture != 0)
@@ -301,9 +255,9 @@ bool Image::loadVolatile()
// GL_EXT_sRGB doesn't support glGenerateMipmap for sRGB textures.
if (sRGB && (GLAD_ES_VERSION_2_0 && GLAD_EXT_sRGB && !GLAD_ES_VERSION_3_0)
&& data.size() <= 1)
&& mipmapsType != MIPMAPS_DATA)
{
settings.mipmaps = false;
mipmapsType = MIPMAPS_NONE;
filter.mipmap = FILTER_NONE;
}
}
@@ -312,7 +266,7 @@ bool Image::loadVolatile()
if ((GLAD_ES_VERSION_2_0 && !(GLAD_ES_VERSION_3_0 || GLAD_OES_texture_npot))
&& (pixelWidth != nextP2(pixelWidth) || pixelHeight != nextP2(pixelHeight)))
{
settings.mipmaps = false;
mipmapsType = MIPMAPS_NONE;
filter.mipmap = FILTER_NONE;
}
@@ -320,38 +274,43 @@ bool Image::loadVolatile()
glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS, &maxMipmapSharpness);
glGenTextures(1, &texture);
gl.bindTextureToUnit(texture, 0, false);
gl.bindTextureToUnit(this, 0, false);
setFilter(filter);
setWrap(wrap);
setMipmapSharpness(mipmapSharpness);
bool loaddefault = false;
int max2Dsize = gl.getMax2DTextureSize();
int max3Dsize = gl.getMax3DTextureSize();
if ((texType == TEXTURE_2D || texType == TEXTURE_2D_ARRAY) && (pixelWidth > max2Dsize || pixelHeight > max2Dsize))
loaddefault = true;
else if (texType == TEXTURE_2D_ARRAY && layers > gl.getMaxTextureLayers())
loaddefault = true;
else if (texType == TEXTURE_CUBE && (pixelWidth > gl.getMaxCubeTextureSize() || pixelWidth != pixelHeight))
loaddefault = true;
else if (texType == TEXTURE_VOLUME && (pixelWidth > max3Dsize || pixelHeight > max3Dsize || depth > max3Dsize))
loaddefault = true;
// Use a default texture if the size is too big for the system.
if (pixelWidth > gl.getMaxTextureSize() || pixelHeight > gl.getMaxTextureSize())
if (loaddefault)
{
loadDefaultTexture();
return true;
}
if (!settings.mipmaps && (GLAD_ES_VERSION_3_0 || GLAD_VERSION_1_0))
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
setFilter(filter);
setWrap(wrap);
setMipmapSharpness(mipmapSharpness);
if (settings.mipmaps && !isCompressed() && data.size() <= 1 &&
!(GLAD_ES_VERSION_2_0 || GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_object))
{
// Auto-generate mipmaps every time the texture is modified, if
// glGenerateMipmap isn't supported.
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
}
GLenum gltextype = OpenGL::getGLTextureType(texType);
if (mipmapsType == MIPMAPS_NONE && (GLAD_ES_VERSION_3_0 || GLAD_VERSION_1_0))
glTexParameteri(gltextype, GL_TEXTURE_MAX_LEVEL, 0);
while (glGetError() != GL_NO_ERROR); // Clear errors.
try
{
if (isCompressed())
loadFromCompressedData();
else
loadFromImageData();
loadData();
GLenum glerr = glGetError();
if (glerr != GL_NO_ERROR)
@@ -365,13 +324,12 @@ bool Image::loadVolatile()
}
size_t prevmemsize = textureMemorySize;
textureMemorySize = 0;
if (isCompressed())
textureMemorySize = cdata[0]->getSize();
else
textureMemorySize = data[0]->getSize();
for (int slice = 0; slice < data.getSliceCount(0); slice++)
textureMemorySize += data.get(slice, 0)->getSize();
if (settings.mipmaps)
if (getMipmapCount() > 1)
textureMemorySize *= 1.33334;
gl.updateTextureMemorySize(prevmemsize, textureMemorySize);
@@ -392,53 +350,61 @@ void Image::unloadVolatile()
textureMemorySize = 0;
}
bool Image::refresh(int xoffset, int yoffset, int w, int h)
void Image::replacePixels(love::image::ImageDataBase *d, int slice, int mipmap, bool reloadmipmaps)
{
// No effect if the texture hasn't been created yet.
if (texture == 0 || usingDefaultTexture)
return false;
return;
if (xoffset < 0 || yoffset < 0 || w <= 0 || h <= 0 ||
(xoffset + w) > pixelWidth || (yoffset + h) > pixelHeight)
if (d->getFormat() != getPixelFormat())
throw love::Exception("Pixel formats must match.");
if (mipmap < 0 || (mipmapsType != MIPMAPS_DATA && mipmap > 0) || mipmap >= getMipmapCount())
throw love::Exception("Invalid image mipmap index.");
if (slice < 0 || (texType == TEXTURE_CUBE && slice >= 6)
|| (texType == TEXTURE_VOLUME && slice >= std::max(getDepth() >> mipmap, 1))
|| (texType == TEXTURE_2D_ARRAY && slice >= getLayerCount()))
{
throw love::Exception("Invalid rectangle dimensions.");
throw love::Exception("Invalid image slice index.");
}
OpenGL::TempDebugGroup debuggroup("Image refresh");
love::image::ImageDataBase *oldd = data.get(slice, mipmap);
gl.bindTextureToUnit(texture, 0, false);
if (oldd == nullptr)
throw love::Exception("Image does not store ImageData!");
if (isCompressed())
{
loadFromCompressedData();
return true;
}
int w = d->getWidth();
int h = d->getHeight();
bool isSRGB = sRGB;
OpenGL::TextureFormat fmt = OpenGL::convertPixelFormat(format, false, isSRGB);
if (w != oldd->getWidth() || h != oldd->getHeight())
throw love::Exception("Dimensions must match the texture's dimensions for the specified mipmap level.");
int mipcount = settings.mipmaps ? (int) data.size() : 1;
d->retain();
oldd->release();
// Reupload the sub-rectangle of each mip level (if we have custom mipmaps.)
for (int i = 0; i < mipcount; i++)
{
const image::pixel *pdata = (const image::pixel *) data[i]->getData();
pdata += yoffset * data[i]->getWidth() + xoffset;
data.set(slice, mipmap, d);
thread::Lock lock(data[i]->getMutex());
glTexSubImage2D(GL_TEXTURE_2D, i, xoffset, yoffset, w, h,
fmt.externalformat, fmt.type, pdata);
OpenGL::TempDebugGroup debuggroup("Image replace pixels");
xoffset /= 2;
yoffset /= 2;
w = std::max(w / 2, 1);
h = std::max(h / 2, 1);
}
gl.bindTextureToUnit(this, 0, false);
if (data.size() <= 1)
uploadImageData(d, mipmap, slice);
if (reloadmipmaps && mipmap == 0 && getMipmapCount() > 1)
generateMipmaps();
}
return true;
void Image::replacePixels(const void *data, size_t size, const Rect &rect, int slice, int mipmap, bool reloadmipmaps)
{
OpenGL::TempDebugGroup debuggroup("Image replace pixels");
gl.bindTextureToUnit(this, 0, false);
uploadByteData(format, data, size, rect, mipmap, slice);
if (reloadmipmaps && mipmap == 0 && getMipmapCount() > 1)
generateMipmaps();
}
ptrdiff_t Image::getHandle() const
@@ -446,21 +412,11 @@ ptrdiff_t Image::getHandle() const
return texture;
}
const std::vector<StrongRef<love::image::ImageData>> &Image::getImageData() const
{
return data;
}
const std::vector<StrongRef<love::image::CompressedImageData>> &Image::getCompressedData() const
{
return cdata;
}
void Image::setFilter(const Texture::Filter &f)
{
if (!validateFilter(f, settings.mipmaps))
if (!validateFilter(f, getMipmapCount() > 1))
{
if (f.mipmap != FILTER_NONE && !settings.mipmaps)
if (f.mipmap != FILTER_NONE && getMipmapCount() == 1)
throw love::Exception("Non-mipmapped image cannot have mipmap filtering.");
else
throw love::Exception("Invalid texture filter.");
@@ -468,7 +424,7 @@ void Image::setFilter(const Texture::Filter &f)
filter = f;
if (!data.empty() && !OpenGL::hasTextureFilteringSupport(data[0]->getFormat()))
if (!OpenGL::hasTextureFilteringSupport(getPixelFormat()))
{
filter.mag = filter.min = FILTER_NEAREST;
@@ -483,57 +439,64 @@ void Image::setFilter(const Texture::Filter &f)
filter.min = filter.mag = FILTER_NEAREST;
}
gl.bindTextureToUnit(texture, 0, false);
gl.setTextureFilter(filter);
gl.bindTextureToUnit(this, 0, false);
gl.setTextureFilter(texType, filter);
}
bool Image::setWrap(const Texture::Wrap &w)
{
bool success = true;
bool forceclamp = texType == TEXTURE_CUBE;
wrap = w;
// If we only have limited NPOT support then the wrap mode must be CLAMP.
if ((GLAD_ES_VERSION_2_0 && !(GLAD_ES_VERSION_3_0 || GLAD_OES_texture_npot))
&& (pixelWidth != nextP2(pixelWidth) || pixelHeight != nextP2(pixelHeight)))
&& (pixelWidth != nextP2(pixelWidth) || pixelHeight != nextP2(pixelHeight) || depth != nextP2(depth)))
{
if (wrap.s != WRAP_CLAMP || wrap.t != WRAP_CLAMP)
forceclamp = true;
}
if (forceclamp)
{
if (wrap.s != WRAP_CLAMP || wrap.t != WRAP_CLAMP || wrap.r != WRAP_CLAMP)
success = false;
// If we only have limited NPOT support then the wrap mode must be CLAMP.
wrap.s = wrap.t = WRAP_CLAMP;
wrap.s = wrap.t = wrap.r = WRAP_CLAMP;
}
if (!gl.isClampZeroTextureWrapSupported())
{
if (wrap.s == WRAP_CLAMP_ZERO)
wrap.s = WRAP_CLAMP;
if (wrap.t == WRAP_CLAMP_ZERO)
wrap.t = WRAP_CLAMP;
if (wrap.s == WRAP_CLAMP_ZERO) wrap.s = WRAP_CLAMP;
if (wrap.t == WRAP_CLAMP_ZERO) wrap.t = WRAP_CLAMP;
if (wrap.r == WRAP_CLAMP_ZERO) wrap.r = WRAP_CLAMP;
}
gl.bindTextureToUnit(texture, 0, false);
gl.setTextureWrap(wrap);
gl.bindTextureToUnit(this, 0, false);
gl.setTextureWrap(texType, wrap);
return success;
}
void Image::setMipmapSharpness(float sharpness)
bool Image::setMipmapSharpness(float sharpness)
{
// OpenGL ES doesn't support LOD bias via glTexParameter.
if (!GLAD_VERSION_1_4)
return;
return false;
// LOD bias has the range (-maxbias, maxbias)
mipmapSharpness = std::min(std::max(sharpness, -maxMipmapSharpness + 0.01f), maxMipmapSharpness - 0.01f);
gl.bindTextureToUnit(texture, 0, false);
gl.bindTextureToUnit(this, 0, false);
// negative bias is sharper
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_LOD_BIAS, -mipmapSharpness);
GLenum gltextype = OpenGL::getGLTextureType(texType);
glTexParameterf(gltextype, GL_TEXTURE_LOD_BIAS, -mipmapSharpness);
return true;
}
float Image::getMipmapSharpness() const
bool Image::isFormatLinear() const
{
return mipmapSharpness;
return isGammaCorrect() && !sRGB;
}
bool Image::isCompressed() const
@@ -541,6 +504,11 @@ bool Image::isCompressed() const
return compressed;
}
Image::MipmapsType Image::getMipmapsType() const
{
return mipmapsType;
}
bool Image::isFormatSupported(PixelFormat pixelformat)
{
return OpenGL::isPixelFormatSupported(pixelformat, false, false);