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Added ETC2 and ASTC texture variants (Refs #174)

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This commit is contained in:
saschawillems 2017-03-10 15:20:08 +01:00
parent c688f7394c
commit a5a2211489
8 changed files with 96 additions and 49 deletions
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47
texture/texture.cpp
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@ -497,6 +497,31 @@ public:
vkFreeMemory(device, texture.deviceMemory, nullptr);
}
void loadTextures()
{
// Vulkan core supports three different compressed texture formats
// As the support differs between implemementations we need to check device features and select a proper format and file
std::string filename;
VkFormat format;
if (deviceFeatures.textureCompressionBC) {
filename = "metalplate01_bc2_unorm.ktx";
format = VK_FORMAT_BC3_UNORM_BLOCK;
}
else if (deviceFeatures.textureCompressionASTC_LDR) {
filename = "metalplate01_astc_8x8_unorm.ktx";
format = VK_FORMAT_ASTC_8x8_UNORM_BLOCK;
}
else if (deviceFeatures.textureCompressionETC2) {
filename = "metalplate01_etc2_unorm.ktx";
format = VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK;
}
else {
vks::tools::exitFatal("Device does not support any compressed texture format!", "Error");
}
loadTexture(getAssetPath() + "textures/" + filename, format, false);
}
void buildCommandBuffers()
{
VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
@ -591,26 +616,6 @@ public:
indices.data()));
}
// Texture loading is done here
void loadAssets()
{
// Vulkan core supports three different compressed texture formats
// As the support differs between implemementations we need to check and load the proper texture
// Block compression (BC) is common on desktops, ETC and ASTC on mobile
if (deviceFeatures.textureCompressionBC) {
loadTexture(getAssetPath() + "textures/metalplate01_bc2_unorm.ktx", VK_FORMAT_BC2_UNORM_BLOCK, false);
}
else if (deviceFeatures.textureCompressionASTC_LDR) {
loadTexture(getAssetPath() + "textures/metalplate01_astc_8x8_unorm.ktx", VK_FORMAT_ASTC_8x8_UNORM_BLOCK, false);
}
else if (deviceFeatures.textureCompressionETC2) {
loadTexture(getAssetPath() + "textures/metalplate01_etc2_unorm.ktx", VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK, false);
}
else {
vks::tools::exitFatal("Device does not support any compressed texture format!", "Error");
}
}
void setupVertexDescriptions()
{
// Binding description
@ -848,7 +853,7 @@ public:
void prepare()
{
VulkanExampleBase::prepare();
loadAssets();
loadTextures();
generateQuad();
setupVertexDescriptions();
prepareUniformBuffers();