source/backends/vulkan/texture1d_backend.cpp

   1 #include "device.h"
   2 #include "texture1d.h"
   3 #include "texture1d_backend.h"
   4 #include "vulkan.h"
   5
   6 using namespace std;
   7
   8 namespace Msp {
   9 namespace GL {
  10
  11 VulkanTexture1D::VulkanTexture1D():
  12         Texture(VK_IMAGE_VIEW_TYPE_1D)
  13 { }
  14
  15 void VulkanTexture1D::fill_image_info(void *ii) const
  16 {
  17         const Texture1D &self = *static_cast<const Texture1D *>(this);
  18
  19         VkImageCreateInfo *image_info = static_cast<VkImageCreateInfo *>(ii);
  20         image_info->imageType = VK_IMAGE_TYPE_1D;
  21         image_info->extent.width = self.width;
  22 }
  23
  24 void VulkanTexture1D::sub_image(unsigned level, int x, unsigned wd, const void *data)
  25 {
  26         const Texture1D &self = *static_cast<const Texture1D *>(this);
  27
  28         unsigned level_size = self.get_level_size(level);
  29         bool discard = (x==0 && wd==level_size);
  30
  31         size_t data_size = wd*get_pixel_size(storage_fmt);
  32         void *staging = device.get_transfer_queue().prepare_transfer(this, false, data_size,
  33                 [this, level, discard](){
  34                         change_layout(level, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, discard);
  35                 },
  36                 [this, level, x, wd](VkCommandBuffer cmd_buf, VkBuffer staging_buf, size_t src_off){
  37                         const VulkanFunctions &vk = device.get_functions();
  38
  39                         VkBufferImageCopy region = { };
  40                         region.bufferOffset = src_off;
  41                         region.imageSubresource.aspectMask = get_vulkan_aspect(get_components(storage_fmt));
  42                         region.imageSubresource.mipLevel = level;
  43                         region.imageSubresource.baseArrayLayer = 0;
  44                         region.imageSubresource.layerCount = 1;
  45                         region.imageOffset = { x, 0, 0 };
  46                         region.imageExtent = { wd, 1, 1 };
  47                         vk.CmdCopyBufferToImage(cmd_buf, staging_buf, handle, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &region);
  48                 });
  49
  50         stage_pixels(staging, data, wd);
  51 }
  52
  53 void VulkanTexture1D::fill_mipmap_blit(unsigned level, void *b)
  54 {
  55         const Texture1D &self = *static_cast<const Texture1D *>(this);
  56         VkImageBlit &blit = *static_cast<VkImageBlit *>(b);
  57
  58         int src_size = self.get_level_size(level);
  59         int dst_size = self.get_level_size(level+1);
  60
  61         blit.srcOffsets[1] = { src_size, 1, 1 };
  62         blit.dstOffsets[1] = { dst_size, 1, 1 };
  63 }
  64
  65 size_t VulkanTexture1D::get_data_size() const
  66 {
  67         return 0;
  68 }
  69
  70 } // namespace GL
  71 } // namespace Msp