def loadEmpty(self, size, format):
self.pixelSize = size
self.size = (1.0, 1.0)
self.format = format
Texture.bind(self)
glTexImage2D(GL_TEXTURE_2D, 0, format, size[0], size[1], 0,
format, GL_UNSIGNED_BYTE, "\x00" * (size[0] * size[1] * 4))
def loadRaw(self, size, string, format, components):
"""Load a raw image from the given string. 'format' is a constant such as
GL_RGB or GL_RGBA that can be passed to gluBuild2DMipmaps.
"""
self.pixelSize = size
self.size = (1.0, 1.0)
self.format = format
self.components = components
(w, h) = size
Texture.bind(self)
glPixelStorei(GL_UNPACK_ALIGNMENT, 1)
if self.useMipmaps:
gluBuild2DMipmaps(self.glTarget, components, w, h, format, GL_UNSIGNED_BYTE, string)
else:
glTexImage2D(self.glTarget, 0, components, w, h, 0, format, GL_UNSIGNED_BYTE, string)
def loadTex2D(self, fname, type = GL_RGB):
file = os.path.join(self.workdir,fname)
if os.path.exists(file):
img = pygame.image.load(file)
noise = pygame.image.tostring(img, "RGB")
else:
Log.debug("Can't load %s; generating random 2D noise instead." % fname)
return self.makeNoise2D(16)
texture = 0
glBindTexture(GL_TEXTURE_2D, texture)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexImage2D(GL_TEXTURE_2D, 0, 1, img.get_width(), img.get_height(), 0, type, GL_UNSIGNED_BYTE, noise)
return texture
def makeNoise2D(self,size=64, c = 1, type = GL_RED):
texels=[]
for i in range(size):
texels.append([])
for j in range(size):
texels[i].append(random())
self.smoothNoise(size, 2, texels)
self.smoothNoise(size, 3, texels)
self.smoothNoise(size, 4, texels)
for i in range(size):
for j in range(size):
texels[i][j] = int(255 * texels[i][j])
texture = 0
glBindTexture(GL_TEXTURE_2D, texture)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexImage2D(GL_TEXTURE_2D, 0, c,size, size, 0, type, GL_UNSIGNED_BYTE, texels)
return texture
def textureSetup(self):
# Free memory if we already allocated space for textures.
if len(self.animTexs) > 0:
glDeleteTextures(self.animTexs)
self.animTexs = glGenTextures(len(self.animImgs))
for texIdx, img in enumerate(self.animImgs):
animSize = img.get_size()
if img.get_alpha is None:
color = "RGB"
colorGL = GL_RGB
else:
color = "RGBA"
colorGL = GL_RGBA
# Log.debug("AnimationPlayer: Image %d format: %s (%dx%d)" % (texIdx, color, animSize[0], animSize[1]))
glBindTexture(GL_TEXTURE_2D, self.animTexs[texIdx])
surfaceData = pygame.image.tostring(img, color, True)
# Linear filtering
glTexImage2D(GL_TEXTURE_2D, 0, 3, animSize[0], animSize[1], 0, colorGL,
GL_UNSIGNED_BYTE, surfaceData)
# MipMapping
# gluBuild2DMipmaps(GL_TEXTURE_2D, colorGL,
# animSize[0], animSize[1], colorGL,
# GL_UNSIGNED_BYTE, surfaceData)
glTexParameteri(GL_TEXTURE_2D,
GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameteri(GL_TEXTURE_2D,
GL_TEXTURE_MIN_FILTER, GL_LINEAR)
Log.debug("AnimationPlayer progress: %d%%" % \
( 100*(texIdx+1+len(self.animImgs)) / \
(2*len(self.animImgs)) ))
# Resize animation (polygon) to respect resolution ratio
# (The math is actually simple, take the time to draw it down if required)
winRes = float(self.winWidth)/float(self.winHeight)
animWidth = float(self.animImgs[0].get_size()[0])
animHeight = float(self.animImgs[0].get_size()[1])
animRes = animWidth/animHeight
vtxX = 1.0
vtxY = 1.0
if winRes > animRes:
r = float(self.winHeight)/animHeight
vtxX = 1.0 - abs(self.winWidth-r*animWidth) / (float(self.winWidth))
elif winRes < animRes:
r = float(self.winWidth)/animWidth
vtxY = 1.0 - abs(self.winHeight-r*animHeight) / (float(self.winHeight))
# Vertices
animVtx = array([[-vtxX, vtxY],
[ vtxX, -vtxY],
[ vtxX, vtxY],
[-vtxX, vtxY],
[-vtxX, -vtxY],
[ vtxX, -vtxY]], dtype=float32)
# Texture coordinates
texCoord = array([[0.0, 1.0],
[1.0, 0.0],
[1.0, 1.0],
[0.0, 1.0],
[0.0, 0.0],
[1.0, 0.0]], dtype=float32)
# Create a compiled OpenGL call list and do array-based drawing
# Could have used GL_QUADS but IIRC triangles are recommended
self.animList = cmglList()
with self.animList:
glEnable(GL_TEXTURE_2D)
glColor3f(1., 1., 1.)
cmglDrawArrays(GL_TRIANGLE_STRIP, vertices=animVtx, texcoords=texCoord)
glDisable(GL_TEXTURE_2D)
