def __createCommandBuffers(self):
allocInfo = _vk.CommandBufferAllocateInfo()
allocInfo.commandPool = self.__commandPool
allocInfo.level = _vk.VK_COMMAND_BUFFER_LEVEL_PRIMARY
allocInfo.commandBufferCount = len(self.__swapChainFramebuffers)
self.__commandBuffers = self.__device.allocateCommandBuffers(allocInfo)
for i in range(len(self.__commandBuffers)):
cmdBuffer = self.__commandBuffers[i]
print("commandBuffer is valid: {}".format(cmdBuffer.isValid))
beginInfo = _vk.CommandBufferBeginInfo()
beginInfo.flags = _vk.VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT
cmdBuffer.begin(beginInfo)
renderPassInfo = _vk.RenderPassBeginInfo()
renderPassInfo.renderPass = self.__renderPass
renderPassInfo.framebuffer = self.__swapChainFramebuffers[i]
renderPassInfo.renderArea.offset = _vk.Offset2D(0, 0)
renderPassInfo.renderArea.extent = self.__swapChainExtent
renderPassInfo.clearValues = [_vk.ClearValue(_vk.ClearColorValue(0.0, 0.0, 0.0, 1.0)),]
cmdBuffer.beginRenderPass(renderPassInfo, _vk.VK_SUBPASS_CONTENTS_INLINE)
cmdBuffer.bindPipeline(_vk.VK_PIPELINE_BIND_POINT_GRAPHICS, self.__graphicsPipeline)
cmdBuffer.draw(3, 1, 0, 0)
cmdBuffer.endRenderPass()
cmdBuffer.end()
#i += 1
print("commandBuffer is valid: {}".format(cmdBuffer.isValid))
def __createGraphicsPipeline(self):
vertShaderModule = self.__device.createShaderModule(
'shaders/17_shader_vertexbuffer_vert.spv')
fragShaderModule = self.__device.createShaderModule(
'shaders/17_shader_vertexbuffer_frag.spv')
vertShaderStageInfo = _vk.PipelineShaderStageCreateInfo()
vertShaderStageInfo.stage = _vk.VK_SHADER_STAGE_VERTEX_BIT
vertShaderStageInfo.module = vertShaderModule
vertShaderStageInfo.name = 'main'
fragShaderStageInfo = _vk.PipelineShaderStageCreateInfo()
fragShaderStageInfo.stage = _vk.VK_SHADER_STAGE_FRAGMENT_BIT
fragShaderStageInfo.module = fragShaderModule
fragShaderStageInfo.name = 'main'
shaderStages = [vertShaderStageInfo, fragShaderStageInfo]
vertexInputInfo = _vk.PipelineVertexInputStateCreateInfo()
vertexInputInfo.vertexBindingDescriptions = [
Vertex.getBindingDescription(),
]
vertexInputInfo.vertexAttributeDescriptions = Vertex.getAttributeDescriptions(
)
inputAssembly = _vk.PipelineInputAssemblyStateCreateInfo()
inputAssembly.topology = _vk.VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST
inputAssembly.primitiveRestartEnable = False
viewport = _vk.Viewport()
viewport.x = 0.0
viewport.y = 0.0
viewport.width = float(self.__swapChainExtent.width)
viewport.height = float(self.__swapChainExtent.height)
viewport.minDepth = 0.0
viewport.maxDepth = 1.0
scissor = _vk.Rect2D()
scissor.offset = _vk.Offset2D(0, 0)
scissor.extent = self.__swapChainExtent
viewportState = _vk.PipelineViewportStateCreateInfo()
viewportState.viewports = [
viewport,
]
viewportState.scissors = [
scissor,
]
rasterizer = _vk.PipelineRasterizationStateCreateInfo()
rasterizer.depthClampEnable = False
rasterizer.rasterizerDiscardEnable = False
rasterizer.polygonMode = _vk.VK_POLYGON_MODE_FILL
rasterizer.lineWidth = 1.0
rasterizer.cullMode = _vk.VK_CULL_MODE_BACK_BIT
rasterizer.frontFace = _vk.VK_FRONT_FACE_CLOCKWISE
rasterizer.depthBiasEnable = False
multisampling = _vk.PipelineMultisampleStateCreateInfo()
multisampling.sampleShadingEnable = False
multisampling.rasterizationSamples = _vk.VK_SAMPLE_COUNT_1_BIT
colorBlendAttachment = _vk.PipelineColorBlendAttachmentState()
colorBlendAttachment.colorWriteMask = _vk.VK_COLOR_COMPONENT_R_BIT | _vk.VK_COLOR_COMPONENT_G_BIT | _vk.VK_COLOR_COMPONENT_B_BIT | _vk.VK_COLOR_COMPONENT_A_BIT
colorBlendAttachment.blendEnable = False
colorBlending = _vk.PipelineColorBlendStateCreateInfo()
colorBlending.logicOpEnable = False
colorBlending.logicOp = _vk.VK_LOGIC_OP_COPY
colorBlending.attachments = [
colorBlendAttachment,
]
colorBlending.blendConstants = [0.0, 0.0, 0.0, 0.0]
pipelineLayoutInfo = _vk.PipelineLayoutCreateInfo()
self.__pipelineLayout = self.__device.createPipelineLayout(
pipelineLayoutInfo)
pipelineInfo = _vk.GraphicsPipelineCreateInfo()
pipelineInfo.stages = shaderStages
pipelineInfo.vertexInputState = vertexInputInfo
pipelineInfo.inputAssemblyState = inputAssembly
pipelineInfo.viewportState = viewportState
pipelineInfo.rasterizationState = rasterizer
pipelineInfo.multisampleState = multisampling
pipelineInfo.colorBlendState = colorBlending
pipelineInfo.layout = self.__pipelineLayout
pipelineInfo.renderPass = self.__renderPass
pipelineInfo.subpass = 0
#pipelineInfo.basePipelineHandle = _vk.Pipeline()
graphicsPipelines = self.__device.createGraphicsPipelines(
_vk.PipelineCache(), [
pipelineInfo,
])
self.__graphicsPipeline = graphicsPipelines[0]
del vertShaderModule
del fragShaderModule
def __createGraphicsPipeline(self):
vertShaderModule = self.__device.createShaderModule('shaders/09_shader_base_vert.spv')
fragShaderModule = self.__device.createShaderModule('shaders/09_shader_base_frag.spv')
vertShaderStageInfo = _vk.PipelineShaderStageCreateInfo()
vertShaderStageInfo.stage = _vk.VK_SHADER_STAGE_VERTEX_BIT
vertShaderStageInfo.module = vertShaderModule
vertShaderStageInfo.name = 'main'
fragShaderStageInfo = _vk.PipelineShaderStageCreateInfo()
fragShaderStageInfo.stage = _vk.VK_SHADER_STAGE_FRAGMENT_BIT
fragShaderStageInfo.module = fragShaderModule
fragShaderStageInfo.name = 'main'
shaderStages = [vertShaderStageInfo, fragShaderStageInfo]
vertexInputInfo = _vk.PipelineVertexInputStateCreateInfo()
inputAssembly = _vk.PipelineInputAssemblyStateCreateInfo()
inputAssembly.topology = _vk.VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST
inputAssembly.primitiveRestartEnable = False
viewport = _vk.Viewport()
viewport.x = 0.0
viewport.y = 0.0
viewport.width = float(self.__swapChainExtent.width)
viewport.height = float(self.__swapChainExtent.height)
viewport.minDepth= 0.0
viewport.maxDepth = 1.0
scissor = _vk.Rect2D()
scissor.offset = _vk.Offset2D(0, 0)
scissor.extent = self.__swapChainExtent
viewportState = _vk.PipelineViewportStateCreateInfo()
viewportState.viewports = [viewport, ]
viewportState.scissors = [scissor, ]
rasterizer = _vk.PipelineRasterizationStateCreateInfo()
rasterizer.depthClampEnable = False
rasterizer.rasterizerDiscardEnable = False
rasterizer.polygonMode = _vk.VK_POLYGON_MODE_FILL
rasterizer.lineWidth = 1.0
rasterizer.cullMode = _vk.VK_CULL_MODE_BACK_BIT
rasterizer.frontFace = _vk.VK_FRONT_FACE_CLOCKWISE
rasterizer.depthBiasEnable = False
multisampling = _vk.PipelineMultisampleStateCreateInfo()
multisampling.sampleShadingEnable = False
multisampling.rasterizationSamples = _vk.VK_SAMPLE_COUNT_1_BIT
colorBlendAttachment = _vk.PipelineColorBlendAttachmentState()
colorBlendAttachment.colorWriteMask = _vk.VK_COLOR_COMPONENT_R_BIT | _vk.VK_COLOR_COMPONENT_G_BIT | _vk.VK_COLOR_COMPONENT_B_BIT | _vk.VK_COLOR_COMPONENT_A_BIT
colorBlendAttachment.blendEnable = False
colorBlending = _vk.PipelineColorBlendStateCreateInfo()
colorBlending.logicOpEnable = False
colorBlending.logicOp = _vk.VK_LOGIC_OP_COPY
colorBlending.attachments = [colorBlendAttachment, ]
colorBlending.blendConstants = [0.0, 0.0, 0.0, 0.0]
pipelineLayoutInfo = _vk.PipelineLayoutCreateInfo()
self.__pipelineLayout = self.__device.createPipelineLayout(pipelineLayoutInfo)
print("pipeline layout is valid: {}".format(self.__pipelineLayout.isValid))
del vertShaderModule
del fragShaderModule
