diff options
Diffstat (limited to 'examples/declarative/rendercontrol/rendercontrol_opengl/cuberenderer.py')
| -rw-r--r-- | examples/declarative/rendercontrol/rendercontrol_opengl/cuberenderer.py | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/examples/declarative/rendercontrol/rendercontrol_opengl/cuberenderer.py b/examples/declarative/rendercontrol/rendercontrol_opengl/cuberenderer.py deleted file mode 100644 index 4a3bf737c..000000000 --- a/examples/declarative/rendercontrol/rendercontrol_opengl/cuberenderer.py +++ /dev/null @@ -1,186 +0,0 @@ -# Copyright (C) 2022 The Qt Company Ltd. -# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause - -import ctypes -import numpy -from OpenGL.GL import (GL_COLOR_BUFFER_BIT, GL_CULL_FACE, GL_CW, - GL_DEPTH_BUFFER_BIT, GL_DEPTH_TEST, GL_FALSE, GL_FLOAT, - GL_TEXTURE_2D, GL_TRIANGLES) - -from PySide6.QtGui import (QMatrix4x4, QOffscreenSurface, QOpenGLContext, - QOpenGLFunctions, QWindow) -from PySide6.QtOpenGL import (QOpenGLBuffer, QOpenGLShader, - QOpenGLShaderProgram, QOpenGLVertexArrayObject) -from shiboken6 import VoidPtr - - -VERTEXSHADER_SOURCE = """attribute highp vec4 vertex; -attribute lowp vec2 coord; -varying lowp vec2 v_coord; -uniform highp mat4 matrix; -void main() { - v_coord = coord; - gl_Position = matrix * vertex; -} -""" - - -FRAGMENTSHADER_SOURCE = """varying lowp vec2 v_coord; -uniform sampler2D sampler; -void main() { - gl_FragColor = vec4(texture2D(sampler, v_coord).rgb, 1.0); -} -""" - - -FLOAT_SIZE = ctypes.sizeof(ctypes.c_float) - - -VERTEXES = numpy.array([-0.5, 0.5, 0.5, 0.5, -0.5, 0.5, -0.5, -0.5, 0.5, - 0.5, -0.5, 0.5, -0.5, 0.5, 0.5, 0.5, 0.5, 0.5, - -0.5, -0.5, -0.5, 0.5, -0.5, -0.5, -0.5, 0.5, -0.5, - 0.5, 0.5, -0.5, -0.5, 0.5, -0.5, 0.5, -0.5, -0.5, - - 0.5, -0.5, -0.5, 0.5, -0.5, 0.5, 0.5, 0.5, -0.5, - 0.5, 0.5, 0.5, 0.5, 0.5, -0.5, 0.5, -0.5, 0.5, - -0.5, 0.5, -0.5, -0.5, -0.5, 0.5, -0.5, -0.5, -0.5, - -0.5, -0.5, 0.5, -0.5, 0.5, -0.5, -0.5, 0.5, 0.5, - - 0.5, 0.5, -0.5, -0.5, 0.5, 0.5, -0.5, 0.5, -0.5, - -0.5, 0.5, 0.5, 0.5, 0.5, -0.5, 0.5, 0.5, 0.5, - -0.5, -0.5, -0.5, -0.5, -0.5, 0.5, 0.5, -0.5, -0.5, - 0.5, -0.5, 0.5, 0.5, -0.5, -0.5, -0.5, -0.5, 0.5], - dtype=numpy.float32) - - -TEX_COORDS = numpy.array([0.0, 0.0, 1.0, 1.0, 1.0, 0.0, - 1.0, 1.0, 0.0, 0.0, 0.0, 1.0, - 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, - 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, - - 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, - 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, - 0.0, 0.0, 1.0, 1.0, 1.0, 0.0, - 1.0, 1.0, 0.0, 0.0, 0.0, 1.0, - - 0.0, 1.0, 1.0, 0.0, 1.0, 1.0, - 1.0, 0.0, 0.0, 1.0, 0.0, 0.0, - 1.0, 0.0, 1.0, 1.0, 0.0, 0.0, - 0.0, 1.0, 0.0, 0.0, 1.0, 1.0], dtype=numpy.float32) - - -class CubeRenderer(): - def __init__(self, offscreenSurface): - self.m_angle = 0 - self.m_offscreenSurface = offscreenSurface - self.m_context = None - self.m_program = None - self.m_vbo = None - self.m_vao = None - self.m_matrixLoc = 0 - self.m_proj = QMatrix4x4() - - def __del__(self): - # Use a temporary offscreen surface to do the cleanup. There may not - # be a native window surface available anymore at self stage. - self.m_context.makeCurrent(self.m_offscreenSurface) - del self.m_program - del self.m_vbo - del self.m_vao - self.m_context.doneCurrent() - - def init(self, w, share): - self.m_context = QOpenGLContext() - self.m_context.setShareContext(share) - self.m_context.setFormat(w.requestedFormat()) - self.m_context.create() - if not self.m_context.makeCurrent(w): - return - - f = self.m_context.functions() - f.glClearColor(0.0, 0.1, 0.25, 1.0) - f.glViewport(0, 0, w.width() * w.devicePixelRatio(), - w.height() * w.devicePixelRatio()) - - self.m_program = QOpenGLShaderProgram() - self.m_program.addCacheableShaderFromSourceCode(QOpenGLShader.Vertex, - VERTEXSHADER_SOURCE) - self.m_program.addCacheableShaderFromSourceCode(QOpenGLShader.Fragment, - FRAGMENTSHADER_SOURCE) - self.m_program.bindAttributeLocation("vertex", 0) - self.m_program.bindAttributeLocation("coord", 1) - self.m_program.link() - self.m_matrixLoc = self.m_program.uniformLocation("matrix") - - self.m_vao = QOpenGLVertexArrayObject() - self.m_vao.create() - vaoBinder = QOpenGLVertexArrayObject.Binder(self.m_vao) - - self.m_vbo = QOpenGLBuffer() - self.m_vbo.create() - self.m_vbo.bind() - - vertexCount = 36 - self.m_vbo.allocate(FLOAT_SIZE * vertexCount * 5) - vertex_data = VERTEXES.tobytes() - tex_coord_data = TEX_COORDS.tobytes() - self.m_vbo.write(0, VoidPtr(vertex_data), - FLOAT_SIZE * vertexCount * 3) - self.m_vbo.write(FLOAT_SIZE * vertexCount * 3, - VoidPtr(tex_coord_data), - FLOAT_SIZE * vertexCount * 2) - self.m_vbo.release() - - if self.m_vao.isCreated(): - self.setupVertexAttribs() - - def resize(self, w, h): - self.m_proj.setToIdentity() - self.m_proj.perspective(45, w / float(h), 0.01, 100.0) - - def setupVertexAttribs(self): - self.m_vbo.bind() - self.m_program.enableAttributeArray(0) - self.m_program.enableAttributeArray(1) - f = self.m_context.functions() - - null = VoidPtr(0) - pointer = VoidPtr(36 * 3 * FLOAT_SIZE) - f.glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, null) - f.glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, pointer) - self.m_vbo.release() - - def render(self, w, share, texture): - if not self.m_context: - self.init(w, share) - - if not self.m_context.makeCurrent(w): - return - - f = self.m_context.functions() - f.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) - - if texture: - f.glBindTexture(GL_TEXTURE_2D, texture) - f.glFrontFace(GL_CW) # because our cube's vertex data is such - f.glEnable(GL_CULL_FACE) - f.glEnable(GL_DEPTH_TEST) - - self.m_program.bind() - vaoBinder = QOpenGLVertexArrayObject.Binder(self.m_vao) - # If VAOs are not supported, set the vertex attributes every time. - if not self.m_vao.isCreated(): - self.setupVertexAttribs() - - m = QMatrix4x4() - m.translate(0, 0, -2) - m.rotate(90, 0, 0, 1) - m.rotate(self.m_angle, 0.5, 1, 0) - self.m_angle += 0.5 - - self.m_program.setUniformValue(self.m_matrixLoc, self.m_proj * m) - - # Draw the cube. - f.glDrawArrays(GL_TRIANGLES, 0, 36) - - self.m_context.swapBuffers(w) |