diff -r 000000000000 -r ca70ae20a155 src/extras/gles_demo.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/extras/gles_demo.py Tue Feb 16 10:07:05 2010 +0530 @@ -0,0 +1,183 @@ +# +# gles_demo.py +# +# Copyright (c) 2006-2007 Nokia Corporation +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +import appuifw, sys, e32, time +from glcanvas import * +from gles import * +from key_codes import * + +class GLESDemo: + varray = array(GL_BYTE, 3, [ + -1,1,1, 1,1,1, 1,-1,1, -1,-1,1, + -1,1,-1, 1,1,-1, 1,-1,-1, -1,-1,-1 + ]) + + indices = array(GL_UNSIGNED_BYTE, 3, [ + 1,0,3, 1,3,2, 2,6,5, 2,5,1, 7,4,5, 7,5,6, + 0,4,7, 0,7,3, 5,4,0, 5,0,1, 3,7,6, 3,6,2 + ]) + + colors = array(GL_UNSIGNED_BYTE, 4, [ + 0,255,0,255, 0,0,255,255, 0,255,0,255, 255,0,0,255, + 0,0,255,255, 255,0,0,255, 0,0,255,255, 0,255,0,255 + ]) + + texcoords = array(GL_BYTE, 2, [ + 0,0, 0,1, 1,0, 1,1, 0,0, 0,1, 1,0, 1,1 + ] ) + + # initialize texture array (just used for passing texture data to glTexImage2D or glTexSubImage2D...) + texture = array(GL_UNSIGNED_BYTE, 4, [ + 255,0,0,255, 255,0,0,255, 0,255,0,255, 0,255,0,255, + 255,0,0,255, 255,0,0,255, 0,255,0,255, 0,255,0,255, + 0,0,255,255, 0,0,255,255, 0,255,255,255, 0,255,255,255, + 0,0,255,255, 0,0,255,255, 0,255,255,255, 0,255,255,255, + ] ) + + def __init__(self): + """Initializes OpenGL ES, sets the vertex and color arrays and pointers, +and selects the shading mode.""" + # It's best to set these before creating the GL Canvas + self.iFrame=0 + self.exitflag = False + + self.render=0 + + self.old_body=appuifw.app.body + try: + self.canvas=GLCanvas(redraw_callback=self.redraw) + appuifw.app.body=self.canvas + except Exception,e: + appuifw.note(u"Exception: %s" % (e)) + self.set_exit() + return + + appuifw.app.menu = [ + (u"Exit", self.set_exit) + ] + + self.initgl() + self.render=1 + + def initgl(self): + # Initialize texture stuff + self.texhandle = glGenTextures( 1 ) + glBindTexture(GL_TEXTURE_2D, self.texhandle) + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, self.texture) + glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE) + + # Disable mip mapping + glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ) + glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ) + + # Initialize array pointers + glVertexPointerb(self.varray) + + glColorPointerub(self.colors) + glTexCoordPointerb(self.texcoords) + glEnableClientState(GL_VERTEX_ARRAY) + glEnableClientState(GL_COLOR_ARRAY) + glEnableClientState(GL_TEXTURE_COORD_ARRAY) + + # Set up state + glEnable(GL_CULL_FACE) + glEnable(GL_TEXTURE_2D) + glDisable(GL_DEPTH_TEST) + glClearColorx(0,0,0,65536) + glClear(GL_COLOR_BUFFER_BIT) + + glViewport(0, 0, self.canvas.size[0], self.canvas.size[1]) + glMatrixMode( GL_PROJECTION ) + glFrustumf( -1.0, 1.0, -1.0, 1.0, 3.0, 1000.0 ) + glMatrixMode( GL_MODELVIEW ) + glLoadIdentity() + glTranslatef(0,0,-100.0) + glScalef(15,15,15) + + glLoadIdentity() + glTranslatef(0,0,-100.0) + glScalef(15,15,15) + + def redraw(self,frame=None): + """Draws and animates the objects. +The frame number determines the amount of rotation.""" + if self.render != 1: + return + self.iFrame += 1 + + glClear(GL_COLOR_BUFFER_BIT) + + glPushMatrix() + glTranslatef(-2,-2,-2) + glRotatef(self.iFrame/1.1, 5,2,3) + glMatrixMode( GL_TEXTURE ) + glLoadIdentity() + glRotatef(self.iFrame/0.7, 0.5, 0.7, 0.2) + glScalef(10,10,10) + glMatrixMode( GL_MODELVIEW ) + glDrawElementsub(GL_TRIANGLES, self.indices) + glPopMatrix() + + glPushMatrix() + glTranslatef(2,3,-3) + glRotatef(self.iFrame/1.8, 3,2,3) + glMatrixMode( GL_TEXTURE ) + glLoadIdentity() + glRotatef(self.iFrame/0.7, 0.1, 0.2, 0.3) + glScalef(10,10,10) + glMatrixMode( GL_MODELVIEW ) + glDrawElementsub(GL_TRIANGLES, self.indices) + glPopMatrix() + + glPushMatrix() + glRotatef(self.iFrame/1.5, 1,2,3) + glMatrixMode( GL_TEXTURE ) + glLoadIdentity() + glRotatef(self.iFrame/0.5, 0.5, 0.3, 0.2) + glScalef(10,10,10) + glMatrixMode( GL_MODELVIEW ) + glDrawElementsub(GL_TRIANGLES, self.indices) + glPopMatrix() + + def close_canvas(self): # break reference cycles + # Uninitializing OpenGL calls should be made before the GLCanvas is deleted + glDeleteTextures([self.texhandle]) + appuifw.app.body=self.old_body + self.canvas=None + + appuifw.app.exit_key_handler=None + + def set_exit(self): + self.exitflag = True + self.render = 0 + + def run(self): + appuifw.app.exit_key_handler=self.set_exit + while not self.exitflag: + self.canvas.drawNow() + e32.ao_sleep(0.0001) + self.close_canvas() + +appuifw.app.screen='full' +try: + app=GLESDemo() +except Exception,e: + appuifw.note(u"Cannot start: %s" % (e)) +else: + app.run() + del app