def _compile(self):
if self.shader:
return
if self.compiling:
return
self.compiling = True
self.shader = gl.glCreateShaderObjectARB(self.shaderType())
if self.shader == 0:
raise GLSLException('faled to create shader object')
prog = c_char_p(self.prog)
length = c_int(-1)
gl.glShaderSourceARB(self.shader, 1,
cast(byref(prog), POINTER(POINTER(c_char))),
byref(length))
gl.glCompileShaderARB(self.shader)
self.compiling = False
compile_status = c_int(0)
gl.glGetObjectParameterivARB(self.shader,
gl.GL_OBJECT_COMPILE_STATUS_ARB,
byref(compile_status))
if not compile_status.value:
err = glsl_log(self.shader)
gl.glDeleteObjectARB(self.shader)
self.shader = 0
raise GLSLException('failed to compile shader', err)
def _compile(self):
if self.shader:
return
if self.compiling:
return
self.compiling = True
self.shader = gl.glCreateShaderObjectARB(self.shaderType())
if self.shader == 0:
raise GLSLException('faled to create shader object')
prog = c_char_p(self.prog)
length = c_int(-1)
gl.glShaderSourceARB(self.shader,
1,
cast(byref(prog), POINTER(POINTER(c_char))),
byref(length))
gl.glCompileShaderARB(self.shader)
self.compiling = False
compile_status = c_int(0)
gl.glGetObjectParameterivARB(self.shader, gl.GL_OBJECT_COMPILE_STATUS_ARB, byref(compile_status))
if not compile_status.value:
err = glsl_log(self.shader)
gl.glDeleteObjectARB(self.shader)
self.shader = 0
raise GLSLException('failed to compile shader', err)
def compileFlat(self):
if self.isCompiled():
return
self.shader = gl.glCreateShaderObjectARB(self.shaderType())
if self.shader == 0:
raise GLSLException('faled to create shader object')
all_source = [b'\n'.join(self._source())]
prog = (c_char_p * len(all_source))(*all_source)
length = (c_int * len(all_source))(-1)
gl.glShaderSourceARB(self.shader, len(all_source),
cast(prog, POINTER(POINTER(c_char))), length)
gl.glCompileShaderARB(self.shader)
compile_status = c_int(0)
gl.glGetObjectParameterivARB(self.shader,
gl.GL_OBJECT_COMPILE_STATUS_ARB,
byref(compile_status))
if not compile_status.value:
err = glsl_log(self.shader)
gl.glDeleteObjectARB(self.shader)
self.shader = 0
raise GLSLException('failed to compile shader', err)
def compileFlat(self):
if self.isCompiled():
return
self.shader = gl.glCreateShaderObjectARB(self.shaderType())
if self.shader == 0:
raise GLSLException('faled to create shader object')
all_source = [b'\n'.join(self._source())]
prog = (c_char_p * len(all_source))(*all_source)
length = (c_int * len(all_source))(-1)
gl.glShaderSourceARB(self.shader,
len(all_source),
cast(prog, POINTER(POINTER(c_char))),
length)
gl.glCompileShaderARB(self.shader)
compile_status = c_int(0)
gl.glGetObjectParameterivARB(self.shader, gl.GL_OBJECT_COMPILE_STATUS_ARB, byref(compile_status))
if not compile_status.value:
err = glsl_log(self.shader)
gl.glDeleteObjectARB(self.shader)
self.shader = 0
raise GLSLException('failed to compile shader', err)
def compileShader( source, shaderType ):
"""Compile shader source of given type (only needed by compileProgram)"""
shader = gl.glCreateShaderObjectARB(shaderType)
#were we given a source string or a ShaderCode object?
if hasattr(source, 'src'): source = source.src
prog = c_char_p(source)
length = c_int(-1)
gl.glShaderSourceARB(shader,
1,
cast(byref(prog), POINTER(POINTER(c_char))),
byref(length))
gl.glCompileShaderARB(shader)
#check for errors
status = c_int()
gl.glGetShaderiv(shader, gl.GL_COMPILE_STATUS, byref(status))
if not status.value:
# retrieve the log length
gl.glGetShaderiv(shader, gl.GL_INFO_LOG_LENGTH, byref(status))
# create a buffer for the log
buffer = create_string_buffer(status.value)#from ctypes
# retrieve the log text
gl.glGetProgramInfoLog(shader, status, None, buffer)
# print the log to the console
print buffer.value
gl.glDeleteShader(shader)
raise ValueError, 'Shader compilation failed'
return shader
def compileShader(source, shaderType):
"""Compile shader source of given type (only needed by compileProgram)"""
shader = gl.glCreateShaderObjectARB(shaderType)
#were we given a source string or a ShaderCode object?
if hasattr(source, 'src'): source = source.src
prog = c_char_p(source)
length = c_int(-1)
gl.glShaderSourceARB(shader, 1,
cast(byref(prog), POINTER(POINTER(c_char))),
byref(length))
gl.glCompileShaderARB(shader)
#check for errors
status = c_int()
gl.glGetShaderiv(shader, gl.GL_COMPILE_STATUS, byref(status))
if not status.value:
# retrieve the log length
gl.glGetShaderiv(shader, gl.GL_INFO_LOG_LENGTH, byref(status))
# create a buffer for the log
buffer = create_string_buffer(status.value) #from ctypes
# retrieve the log text
gl.glGetProgramInfoLog(shader, status, None, buffer)
# print the log to the console
print buffer.value
gl.glDeleteShader(shader)
raise ValueError, 'Shader compilation failed'
return shader
def compileShader(source, shaderType):
"""Compile shader source of given type (only needed by compileProgram)"""
shader = GL.glCreateShaderObjectARB(shaderType)
prog = c_char_p(source)
length = c_int(-1)
GL.glShaderSourceARB(shader, 1,
cast(byref(prog), POINTER(POINTER(c_char))),
byref(length))
GL.glCompileShaderARB(shader)
#check for errors
status = c_int()
GL.glGetShaderiv(shader, GL.GL_COMPILE_STATUS, byref(status))
if not status.value:
print_log(shader)
GL.glDeleteShader(shader)
raise ValueError, 'Shader compilation failed'
return shader
def compileShader( source, shaderType ):
"""Compile shader source of given type (only needed by compileProgram)"""
shader = GL.glCreateShaderObjectARB(shaderType)
prog = c_char_p(source)
length = c_int(-1)
GL.glShaderSourceARB(shader,
1,
cast(byref(prog), POINTER(POINTER(c_char))),
byref(length))
GL.glCompileShaderARB(shader)
#check for errors
status = c_int()
GL.glGetShaderiv(shader, GL.GL_COMPILE_STATUS, byref(status))
if not status.value:
print_log(shader)
GL.glDeleteShader(shader)
raise ValueError, 'Shader compilation failed'
return shader
def compileShader(source, shaderType):
"""Compile shader source of given type (only needed by compileProgram)
"""
shader = GL.glCreateShaderObjectARB(shaderType)
# if Py3 then we need to convert our (unicode) str into bytes for C
if type(source) != bytes:
source = source.encode()
prog = c_char_p(source)
length = c_int(-1)
GL.glShaderSourceARB(shader, 1,
cast(byref(prog), POINTER(POINTER(c_char))),
byref(length))
GL.glCompileShaderARB(shader)
# check for errors
status = c_int()
GL.glGetShaderiv(shader, GL.GL_COMPILE_STATUS, byref(status))
if not status.value:
GL.glDeleteShader(shader)
raise ValueError('Shader compilation failed')
return shader