72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
/* -*- tab-width: 4; -*- */
|
|
/* vi: set sw=2 ts=4 expandtab: */
|
|
|
|
/*
|
|
* Copyright 2017-2020 Mark Callow.
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @internal
|
|
* @class TextureArray
|
|
* @~English
|
|
*
|
|
* @brief Definition of test sample for loading and displaying the layers of a 2D array texture.
|
|
*
|
|
* @author Mark Callow, github.com/MarkCallow.
|
|
*
|
|
* @par Acknowledgement
|
|
* Thanks to Sascha Willems' - www.saschawillems.de - for the concept,
|
|
* the VulkanTextOverlay class and the shaders used by this test.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
#include <algorithm>
|
|
#include <time.h>
|
|
#include <vector>
|
|
|
|
#include "TextureArray.h"
|
|
#include "ltexceptions.h"
|
|
|
|
VulkanLoadTestSample*
|
|
TextureArray::create(VulkanContext& vkctx,
|
|
uint32_t width, uint32_t height,
|
|
const char* const szArgs, const std::string sBasePath)
|
|
{
|
|
return new TextureArray(vkctx, width, height, szArgs, sBasePath);
|
|
}
|
|
|
|
#define INSTANCE_COUNT_CONST_ID 1
|
|
#define INSTANCES_DECLARED_IN_SHADER 30
|
|
|
|
TextureArray::TextureArray(VulkanContext& vkctx,
|
|
uint32_t width, uint32_t height,
|
|
const char* const szArgs, const std::string sBasePath)
|
|
: InstancedSampleBase(vkctx, width, height, szArgs, sBasePath)
|
|
{
|
|
zoom = -15.0f;
|
|
|
|
|
|
if (texture.layerCount == 1) {
|
|
std::stringstream message;
|
|
|
|
message << "TextureArray requires an array texture.";
|
|
throw std::runtime_error(message.str());
|
|
}
|
|
|
|
try {
|
|
prepare("instancing.frag.spv", "instancing.vert.spv",
|
|
INSTANCE_COUNT_CONST_ID, texture.layerCount,
|
|
INSTANCES_DECLARED_IN_SHADER);
|
|
} catch (std::exception& e) {
|
|
(void)e; // To quiet unused variable warnings from some compilers.
|
|
//cleanup(); // See explanation in TextureMipmap.cpp
|
|
throw;
|
|
}
|
|
}
|
|
|
|
|