def run(self):
# start loop
while not glfw.glfwWindowShouldClose(self.win) and not self.exitNow:
# render
self.renderer.draw()
# swap buffers
glfw.glfwSwapBuffers(self.win)
# wait for events
glfw.glfwWaitEvents()
# end
glfw.glfwTerminate()
def run(self):
# start loop
while not glfw.glfwWindowShouldClose(self.win) and not self.exitNow:
# render
self.renderer.draw()
# swap buffers
glfw.glfwSwapBuffers(self.win)
# wait for events
glfw.glfwWaitEvents()
# end
glfw.glfwTerminate()
def main():
# verify input
if len(sys.argv) == 1:
# check if the standard input is a tty (not a pipe)
if sys.stdin.isatty():
print("Incorrect syntax, use:")
print(' > ' + sys.argv[0] + " image.png")
# show a default image if exists
sys.argv.append('/Users/facciolo/uiskentuie_standing_stone.png')
try:
from os import stat
stat(sys.argv[1])
except OSError:
sys.exit(1)
# otherwise use stdin as input (because it should be a pipe)
else:
sys.argv.append('-')
# pick the first image
I1 = sys.argv[1]
# globals
global D,V,DD,current_image_idx
tic()
# read the image
# Usually this is done with change_image, but this is a special case
# as we must find out the image size before creating the window
D.imageBitmapTiles,D.w,D.h,D.nch,D.v_min,D.v_max = load_image(I1)
D.filename = I1
from os import stat, path
if I1 != '-' and path.exists(I1):
D.mtime = (stat(I1).st_mtime)
V.data_min, V.data_max= D.v_min,D.v_max
V.reset_scale_bias()
toc('loadImage+data->RGBbitmap')
## image list
current_image_idx = 0
DD[current_image_idx] = D
tic()
# Initialize the library
# for some reason glfwInit changes the current dir, so I change it back!
from os import getcwd,chdir
savepath = getcwd()
if not glfw.glfwInit():
sys.exit(1)
chdir(savepath)
# TODO REMOVE : needed for the text
import OpenGL.GLUT as glut
glut.glutInit()
# Create a windowed mode window and its OpenGL context
window = glfw.glfwCreateWindow(D.w, D.h, "Vflip! (reloaded)", None, None)
if not window:
glfw.glfwTerminate()
sys.exit(1)
# Make the window's context current
glfw.glfwMakeContextCurrent(window)
# event handlers
glfw.glfwSetKeyCallback(window, keyboard_callback)
glfw.glfwSetMouseButtonCallback(window, mouseButtons_callback)
glfw.glfwSetScrollCallback(window, mouseWheel_callback)
glfw.glfwSetCursorPosCallback(window, mouseMotion_callback)
glfw.glfwSetFramebufferSizeCallback(window, resize_callback)
glfw.glfwSetWindowRefreshCallback(window,display)
# glfw.glfwSetCharCallback (window, unicode_char_callback)
toc('glfw init')
# setup texture
tic()
setupTexturesFromImageTiles(D.imageBitmapTiles,D.w,D.h,D.nch)
glFinish() # Flush and wait
toc('texture setup')
print (0,D.filename, (D.w,D.h,D.nch), (D.v_min,D.v_max))
##########
######## SETUP FRAGMENT SHADER FOR CONTRAST CHANGE
##########
# http://www.cityinabottle.org/nodebox/shader/
# http://www.seethroughskin.com/blog/?p=771
# http://python-opengl-examples.blogspot.com.es/
# http://www.lighthouse3d.com/tutorials/glsl-core-tutorial/fragment-shader/
global program, SHADERS, SHADER_PROGRAMS
for s in SHADERS.keys():
SHADER_PROGRAMS[s] = compileProgram(
compileShader(SHADERS[s], GL_FRAGMENT_SHADER),
);
glLinkProgram( SHADER_PROGRAMS[s] )
program = SHADER_PROGRAMS['rgba']
#global program
# try to activate/enable shader program
# handle errors wisely
try:
glUseProgram(program)
except OpenGL.error.GLError:
print(glGetProgramInfoLog(program))
raise
# set the values of the shader uniform variables (global)
shader_a= glGetUniformLocation(program, "shader_a")
glUniform1f(shader_a,V.scale_param)
shader_b= glGetUniformLocation(program, "shader_b")
glUniform1f(shader_b,V.bias_param)
shader_c= glGetUniformLocation(program, "shader_c")
glUniform1i(shader_c,V.inv_param)
# # first display
# display(window)
## glFlush()
# Loop until the user closes the window
while not glfw.glfwWindowShouldClose(window):
# Render here
if V.redisp:
# Try to resize the window if needed
# this process the window resize requests generated by the application
# the user window resize requests requests go directly to resize_callback
if V.resize and not (D.w,D.h) == glfw.glfwGetFramebufferSize(window) and not V.window_has_been_resized_by_the_user:
glfw.glfwSetWindowSize(window,D.w,D.h)
# I know it's not been the user so I reset the variable to 0
V.window_has_been_resized_by_the_user=0
V.resize = 0
if V.TOGGLE_FIT_TO_WINDOW_SIZE: V.update_zoom_position_to_fit_window()
V.redisp = display(window)
# Swap front and back buffers
glfw.glfwSwapBuffers(window)
V.mute_wheel=0
V.mute_sweep=0
V.mute_keyboard=0
# Poll for and process events
#glfw.glfwPollEvents()
glfw.glfwWaitEvents()
glfw.glfwTerminate()
