SDL_Vulkan_GetDrawableSize.html

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   9 <title>SDL_Vulkan_GetDrawableSize</title>
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  12 <a href="index.html">\96Ú\8e\9f</a> - <a href="ApiByCategory.html">API(\8b@\94\\95Ê)</a> - <a href="CategoryVulkan.html">Vulkan\83O\83\89\83t\83B\83b\83N</a> - SDL_Vulkan_GetDrawableSize
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  14 <h1>SDL_Vulkan_GetDrawableSize</h1>
  15 \83E\83B\83\93\83h\83E\82Ì\83s\83N\83Z\83\8b\82ð\8f\91\82«\8d\9e\82ß\82é\91w\82Ì\83T\83C\83Y\82ð\93¾\82é. \82±\82Ì\8aÖ\90\94\82Í\83E\83B\83\93\83h\83E\82Æ\8aÖ\98A\95t\82¯\82ç\82ê\82½VkExtent\82Ì\83r\83\85\81[\83|\81[\83g\83T\83C\83Y\82â\83V\83U\81[\8bé\8c`\82È\82Ç\82Ì\90Ý\92è\82Ì\82½\82ß\82É\8eg\82í\82ê\82é
  16 <h2>\8d\\95¶</h2>
  17 <code>void SDL_Vulkan_GetDrawableSize(SDL_Window* window, int* w, int* h)</code>
  18 <h2>\88ø\90\94</h2>
  19 <table border="1" summary="SDL_Vulkan_GetDrawableSize">
  20 <tr><td>window</td><td>\83T\83C\83Y\82ð\92²\82×\82éSDL_Window</td></tr>
  21 <tr><td>w</td><td>\95\9d\82ð\91ã\93ü\82·\82é\95Ï\90\94\82Ö\82Ì\83|\83C\83\93\83^\82Ü\82½\82ÍNULL</td></tr>
  22 <tr><td>h</td><td>\8d\82\82³\82ð\91ã\93ü\82·\82é\95Ï\90\94\82Ö\82Ì\83|\83C\83\93\83^\82Ü\82½\82ÍNULL</td></tr>
  23 </table>
  24 <h2>\83T\83\93\83v\83\8b\83R\81[\83h</h2>
  25 <p>
  26 <code>
  27 <pre>
  28 // C++17\82È\82ç\82Î\82±\82ê\82Ì\91ã\82í\82è\82Éstd::clamp()\82ð\8eg\82¤\82±\82Æ
  29 #define CLAMP(x, lo, hi)    ((x) < (lo) ? (lo) : (x) > (hi) ? (hi) : (x))
  30
  31 SDL_Window *window;
  32 VkSurfaceKHR surface;
  33 VkPhysicalDevice physicalDevice;
  34
  35 // window = SDL_CreateWindow(...);
  36 if (!SDL_Vulkan_CreateSurface(window, instance, &surface)) {
  37     // handle error
  38 }
  39 // physicalDevice = ...;
  40
  41 // ...
  42
  43 // Swapchain\90¶\90¬
  44
  45 VkSurfaceCapabilitiesKHR capabilities;
  46 vkGetPhysicalDeviceSurfaceCapabilitiesKHR(physicalDevice, surface, &capabilities);
  47
  48 int width;
  49 int height;
  50 SDL_Vulkan_GetDrawableSize(window, &width, &height);
  51
  52 width = CLAMP(width, capabilities.minImageExtent.width, capabilities.maxImageExtent.width);
  53 height = CLAMP(height, capabilities.minImageExtent.height, capabilities.maxImageExtent.height);
  54
  55 // ...
  56
  57 // vkCreateSwapchainKHR(...);
  58 </pre>
  59 </code>
  60 <h2>\8fÚ\8d×</h2>
  61 <p>
  62 \8d\82DPI\82Ö\82Ì\83\8c\83\93\83_\83\8a\83\93\83O, \97á\82¦\82Î\8d\82DPI(Apple\82Å\82Í"Retina"\82Æ\8cÄ\82Î\82ê\82é)\82É\91Î\89\9e\82µ\82½\8aÂ\8b«\82ÅSDL_WINDOW_ALLOW_HIGHDPI\82ð\8ew\92è\82µ\82Ä\90¶\90¬\82µ\82½\83E\83B\83\93\83h\83E\82Ì\8fê\8d\87\82Í, \82±\82Ì\8aÖ\90\94\82ª\96ß\82·\92l\82Í<a href="SDL_GetWindowSize.html">SDL_GetWindowSize()</a>\82Æ\82Í\82¨\82»\82ç\82\88Ù\82È\82é. \82»\82µ\82Ä, <a href="SDL_HINT_VIDEO_HIGHDPI_DISABLED.html">SDL_HINT_VIDEO_HIGHDPI_DISABLED</a>\83q\83\93\83g\82Å\96³\8cø\82É\82·\82é\82±\82Æ\82Í\82Å\82«\82È\82¢.
  63 </p>
  64 <h2>\83o\81[\83W\83\87\83\93</h2>
  65 2.0.6\88È\8d~
  66 <h2>\8aÖ\98A\8d\80\96Ú(\8aÖ\90\94)</h2>
  67 <a href="SDL_CreateWindow.html">SDL_CreateWindow</a><br>
  68 <a href="SDL_GetWindowSize.html">SDL_GetWindowSize</a><br>
  69 <a href="SDL_Vulkan_CreateSurface.html">SDL_Vulkan_CreateSurface</a><br>
  70 <h2>SDL Wiki\82Ö\82Ì\83\8a\83\93\83N</h2>
  71 <a href="https://wiki.libsdl.org/SDL_Vulkan_GetDrawableSize">SDL_Vulkan_GetDrawableSize - SDL Wiki</a>
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