mirrors
/
roar
mirror of https://github.com/lalbornoz/roar.git
1
Fork 0
Code Issues Packages Projects Releases Wiki Activity
roar/ENNTool/ENNToolGLCanvasPanel.py

205 lines
8.8 KiB
Python
Raw Blame History

#!/usr/bin/env python3
#
# ENNTool -- mIRC art animation tool (for EFnet #MiRCART) (WIP)
# Copyright (c) 2018 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
# This project is licensed under the terms of the MIT license.
#
# References:
# Wed, 27 Jun 2018 16:02:10 +0200 [1] <https://www.opengl.org/discussion_boards/showthread.php/125843-default-camera?p=954801&viewfull=1#post954801>
# Wed, 27 Jun 2018 16:02:11 +0200 [2] <https://www.opengl.org/discussion_boards/showthread.php/167808-2D-texture-problem-lines-between-textures>
# Wed, 27 Jun 2018 16:02:12 +0200 [3] <https://www.khronos.org/opengl/wiki/How_lighting_works#Good_Settings.>
# Wed, 27 Jun 2018 16:02:13 +0200 [4] <https://www.khronos.org/opengl/wiki/Common_Mistakes>
# Wed, 27 Jun 2018 16:02:14 +0200 [5] <https://www.khronos.org/opengl/wiki/Pixel_Transfer#Pixel_layout>
# Thu, 28 Jun 2018 18:32:50 +0200 [6] <https://stackoverflow.com/questions/18935203/shader-position-vec4-or-vec3>
# Tue, 03 Jul 2018 14:34:57 +0200 [7] <https://gamedev.stackexchange.com/questions/107793/binding-and-unbinding-what-would-you-do>
#
from ENNToolMiRCARTColours import ENNToolMiRCARTColoursFloat
from OpenGL.GL import *
from OpenGL.GL import shaders
import ctypes, wx, wx.glcanvas
class ENNToolGLCanvas(wx.glcanvas.GLCanvas):
# {{{ initOpenGL(self, cameraPos=(-5.0, 3.0, -5)): XXX
def initOpenGL(self, cameraPos=(-5.0, 3.0, -5)):
self.glContext = wx.glcanvas.GLContext(self)
self.SetCurrent(self.glContext)
# [1]
glViewport(0, 0, *self.curSize)
glMatrixMode(GL_PROJECTION)
glLoadIdentity(); glFrustum(-1, 1, -1, 1, 1, 100);
glMatrixMode(GL_MODELVIEW)
glEnable(GL_DEPTH_TEST)
glTranslatef(*cameraPos)
# }}}
# {{{ initShaders(self): XXX
def initShaders(self):
# Fragment shader
fs = shaders.compileShader("""
#version 330 core
in vec2 frgTexCoord;
in vec3 frgFgColour;
in vec3 frgBgColour;
uniform sampler2D texture;
layout(location = 0) out vec4 fragColour;
void main() {
vec4 texel = texture2D(texture, frgTexCoord);
if (texel.r == 0.0 && texel.g == 0.0 && texel.b == 0.0 && texel.a == 0.0) {
fragColour = vec4(frgBgColour.r, frgBgColour.g, frgBgColour.b, 1.0);
} else {
fragColour = vec4(frgFgColour.r, frgFgColour.g, frgFgColour.b, 1.0);
}
}
""", GL_FRAGMENT_SHADER)
# Vertex shader
vs = shaders.compileShader("""
#version 330 core
layout(location = 0) in vec4 vertex;
layout(location = 1) in vec2 texcoord;
layout(location = 2) in vec3 vexFgColour;
layout(location = 3) in vec3 vexBgColour;
out vec2 frgTexCoord;
out vec3 frgFgColour;
out vec3 frgBgColour;
uniform mat4 modelview;
uniform mat4 projection;
void main() {
gl_Position = projection * modelview * vertex;
frgTexCoord = texcoord;
frgFgColour = vexFgColour;
frgBgColour = vexBgColour;
}
""", GL_VERTEX_SHADER)
self.shader = shaders.compileProgram(vs, fs)
# }}}
# {{{ renderFrame(self, artTextureId, artVbo, artVboLen): XXX
def renderFrame(self, artTextureId, artVbo, artVboLen):
# Bind VBO and named texture & install shader program object
glBindBuffer(GL_ARRAY_BUFFER, artVbo)
glBindTexture(GL_TEXTURE_2D, artTextureId)
glUseProgram(self.shader)
# Specify modelview and projection matrix & texture unit uniforms for shader programs
modelview, projection = (GLfloat * 16)(), (GLfloat * 16)()
glGetFloatv(GL_MODELVIEW_MATRIX, modelview)
glGetFloatv(GL_PROJECTION_MATRIX, projection)
glUniformMatrix4fv(glGetUniformLocation(self.shader, "modelview"), 1, GL_FALSE, modelview)
glUniformMatrix4fv(glGetUniformLocation(self.shader, "projection"), 1, GL_FALSE, projection)
glUniform1i(glGetUniformLocation(self.shader, "texture"), 0)
# VBO vertices location
glEnableVertexAttribArray(0)
glVertexAttribPointer(0, 3, GL_FLOAT, False, 44, ctypes.c_void_p(0))
glVertexPointer(3, GL_FLOAT, 44, ctypes.c_void_p(0))
# VBO texture coordinates
glEnableVertexAttribArray(1)
glVertexAttribPointer(1, 2, GL_FLOAT, False, 44, ctypes.c_void_p(12))
glTexCoordPointer(2, GL_FLOAT, 44, ctypes.c_void_p(12))
# VBO foreground colours
glEnableVertexAttribArray(2)
glVertexAttribPointer(2, 3, GL_FLOAT, False, 44, ctypes.c_void_p(20))
glTexCoordPointer(3, GL_FLOAT, 44, ctypes.c_void_p(20))
# VBO background colours
glEnableVertexAttribArray(3)
glVertexAttribPointer(3, 3, GL_FLOAT, False, 44, ctypes.c_void_p(32))
glTexCoordPointer(3, GL_FLOAT, 44, ctypes.c_void_p(32))
# Clear colour and depth buffer, draw quads from VBO & clear state
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glDrawArrays(GL_QUADS, 0, artVboLen)
glDisableVertexAttribArray(0)
glBindTexture(GL_TEXTURE_2D, 0)
# }}}
# {{{ renderMiRCART(self, artInfo, artMap, centre=True, canvasCols=100, cubeSize=(0.1, 0.2)): XXX
def renderMiRCART(self, artInfo, artMap, centre=True, canvasCols=100, cubeSize=(0.1, 0.2)):
curPos, vertices, numVertices = [0, 0, 0], [], 0
for numRow in range(len(artMap)):
if centre and (len(artMap[numRow]) < canvasCols):
curPos[0] += (((canvasCols - len(artMap[numRow])) * cubeSize[0]) / 2)
for numCol in range(len(artMap[numRow])):
cubeFg = artMap[numRow][numCol][0]
cubeBg = artMap[numRow][numCol][1]
cubeAttrs = artMap[numRow][numCol][2]
cubeChar = artMap[numRow][numCol][3]
artCell = artInfo[cubeAttrs][cubeChar]
# Top Right, Top Left
vertices += curPos
vertices += artCell[0:2]
vertices += [*ENNToolMiRCARTColoursFloat[cubeFg]]
vertices += [*ENNToolMiRCARTColoursFloat[cubeBg]]
vertices += [curPos[0] - cubeSize[0], curPos[1], curPos[2]]
vertices += artCell[2:4]
vertices += ENNToolMiRCARTColoursFloat[cubeFg]
vertices += ENNToolMiRCARTColoursFloat[cubeBg]
# Bottom Left, Bottom Right
vertices += [curPos[0] - cubeSize[0], curPos[1] - cubeSize[1], curPos[2]]
vertices += artCell[4:6]
vertices += [*ENNToolMiRCARTColoursFloat[cubeFg]]
vertices += [*ENNToolMiRCARTColoursFloat[cubeBg]]
vertices += [curPos[0], curPos[1] - cubeSize[1], curPos[2]]
vertices += artCell[6:8]
vertices += ENNToolMiRCARTColoursFloat[cubeFg]
vertices += ENNToolMiRCARTColoursFloat[cubeBg]
curPos[0], numVertices = curPos[0] + cubeSize[0], numVertices + 4
curPos[0], curPos[1] = 0, curPos[1] - cubeSize[1]
artVbo = glGenBuffers(1)
glBindBuffer(GL_ARRAY_BUFFER, artVbo)
glBufferData(GL_ARRAY_BUFFER,
(ctypes.c_float*len(vertices))(*vertices),
GL_STATIC_DRAW)
return artVbo, len(vertices), -curPos[1], numVertices
# }}}
# {{{ __init__(self, parentCanvas, size): initialisation method
def __init__(self, parentCanvas, size):
super().__init__(parentCanvas, size=size)
self.curSize = list(size)
self.parentCanvas = parentCanvas
# }}}
class ENNToolGLPanel(wx.Panel):
"""XXX"""
# {{{ onPaint(self, event): XXX
def onPaint(self, event):
eventDc = wx.PaintDC(self)
eventUpdates = wx.RegionIterator(self.GetUpdateRegion())
paintFlag = True if eventUpdates.HaveRects() else False
if self.frameFun != None:
self.frameFun()
# }}}
# {{{ onTimer(self, event): XXX
def onTimer(self, event):
if self.frameFun != None:
if not self.frameFun():
event.GetTimer().Stop()
event.GetTimer().Destroy()
# }}}
# {{{ __init__(self, parent, size, defaultPos=(24,24), parentFrame=None): initialisation method
def __init__(self, parent, size, defaultPos=(24,24), parentFrame=None):
super().__init__(parent, pos=defaultPos, size=size)
self.curPos = list(defaultPos); self.curSize = list(size);
self.Bind(wx.EVT_PAINT, self.onPaint)
self.frameFun = None
self.timerTimer = wx.Timer(self, 1)
self.timerTimer.Start(40)
self.Bind(wx.EVT_TIMER, self.onTimer, self.timerTimer)
# }}}
# vim:expandtab foldmethod=marker sw=4 ts=4 tw=120
Reference in New Issue View Git Blame Copy Permalink