def createTexture(self, gl, width=None, height=None,
wrapMode=QOpenGLTexture.ClampToEdge, format=QOpenGLTexture.RGBA8U, filter=QOpenGLTexture.Linear,
filename=None, allocate=True, **kwparams):
''' Creates texture object with required parameters '''
assert width is not None or filename is not None
if height is None: height = width
if filename:
texture = QOpenGLTexture(QImage('{}/{}'.format(Resources.directory, filename)).mirrored(), QOpenGLTexture.DontGenerateMipMaps)
else:
texture = QOpenGLTexture(QOpenGLTexture.Target2D)
texture.setFormat(format)
texture.setSize(width, height)
if allocate: texture.allocateStorage()
texture.setMinificationFilter(filter)
texture.setMagnificationFilter(filter)
texture.setWrapMode(wrapMode)
assert texture.create()
texture.bind()
for k, v in kwparams.items():
gl.glTexParameteri(gl.GL_TEXTURE_2D, getattr(gl, k), v)
texture.release()
return texture
def asQOpenGLTexture(self, gl, context):
if not self.data:
return
if self.glFormat.requirements:
minVersion, extensions = self.glFormat.requirements
glVersion = (gl.glGetIntegerv(gl.GL_MAJOR_VERSION),
gl.glGetIntegerv(gl.GL_MINOR_VERSION))
if glVersion < minVersion or minVersion < (1, 0):
compatible = False
for extension in extensions:
if context.hasExtension(extension):
compatible = True
break
if not compatible:
qCritical(
self.__tr(
"OpenGL driver incompatible with texture format."))
return None
if self.header.dwCaps2 & DDSDefinitions.DDS_HEADER.Caps2.DDSCAPS2_CUBEMAP:
texture = QOpenGLTexture(QOpenGLTexture.TargetCubeMap)
if self.header.dwWidth != self.header.dwHeight:
qCritical(self.__tr("Cubemap faces must be square"))
return None
else:
# Assume GL_TEXTURE_2D for now
texture = QOpenGLTexture(QOpenGLTexture.Target2D)
# Assume single layer for now
# self.texture.setLayers(1)
mipCount = self.mipLevels()
texture.setAutoMipMapGenerationEnabled(False)
texture.setMipLevels(mipCount)
texture.setMipLevelRange(0, mipCount - 1)
texture.setSize(self.header.dwWidth, self.header.dwHeight)
texture.setFormat(self.glFormat.internalFormat)
texture.allocateStorage()
if self.header.dwCaps2 & DDSDefinitions.DDS_HEADER.Caps2.DDSCAPS2_CUBEMAP:
# Lisa hasn't whipped David Wang into shape yet. At least there are fewer bugs than under Raja.
# The specific bug has been reported and AMD "will try to reproduce it soon"
noDSA = "Radeon" in gl.glGetString(
gl.GL_RENDERER) and self.glFormat.compressed
if noDSA:
texture.bind()
faceIndex = 0
for face in ddsCubemapFaces:
if self.header.dwCaps2 & face:
for i in range(mipCount):
if self.glFormat.compressed:
if not noDSA:
texture.setCompressedData(
i, 0, ddsCubemapFaces[face],
len(self.data[faceIndex * mipCount + i]),
self.data[faceIndex * mipCount + i])
else:
gl.glCompressedTexSubImage2D(
ddsCubemapFaces[face], i, 0, 0,
max(self.header.dwWidth // 2**i, 1),
max(self.header.dwHeight // 2**i,
1), self.glFormat.internalFormat,
len(self.data[faceIndex * mipCount + i]),
self.data[faceIndex * mipCount + i])
else:
texture.setData(
i, 0, ddsCubemapFaces[face],
self.glFormat.format, self.glFormat.type,
self.glFormat.converter(
self.data[faceIndex * mipCount + i]))
faceIndex += 1
if noDSA:
texture.release()
else:
for i in range(mipCount):
if self.glFormat.compressed:
texture.setCompressedData(i, 0, len(self.data[i]),
self.data[i])
else:
texture.setData(i, 0, self.glFormat.format,
self.glFormat.type,
self.glFormat.converter(self.data[i]))
texture.setWrapMode(QOpenGLTexture.ClampToEdge)
if self.glFormat.samplerType != "F":
# integer textures can't be filtered
texture.setMinMagFilters(QOpenGLTexture.NearestMipMapNearest,
QOpenGLTexture.Nearest)
return texture
