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kmsdrm: Properly zero-initialize CreateInfo structs

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As written, these contain undefined stack contents, which in practice
causes crashes/hangs and/or triggers the validation layers (they
complain about `pNext` and `flags` not being NULL).
This commit is contained in:
Niklas Haas 2021-07-19 11:26:54 +02:00 committed by Ryan C. Gordon
parent 9170c0c7f8
commit 760074270a
1 changed files with 3 additions and 0 deletions
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src/video/kmsdrm/SDL_kmsdrmvulkan.c
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@ -394,6 +394,8 @@ SDL_bool KMSDRM_Vulkan_CreateSurface(_THIS,
/* SDL (and DRM, if we look at drmModeModeInfo vrefresh) uses plain integer Hz for
display mode refresh rate, but Vulkan expects higher precision. */
new_mode_parameters.refreshRate = window->fullscreen_mode.refresh_rate * 1000;
SDL_zero(display_mode_create_info);
display_mode_create_info.sType = VK_STRUCTURE_TYPE_DISPLAY_MODE_CREATE_INFO_KHR;
display_mode_create_info.parameters = new_mode_parameters;
result = vkCreateDisplayModeKHR(gpu,
@ -419,6 +421,7 @@ SDL_bool KMSDRM_Vulkan_CreateSurface(_THIS,
image_size.width = window->w;
image_size.height = window->h;
SDL_zero(display_plane_surface_create_info);
display_plane_surface_create_info.sType = VK_STRUCTURE_TYPE_DISPLAY_SURFACE_CREATE_INFO_KHR;
display_plane_surface_create_info.displayMode = display_mode;
/* For now, simply use the first plane. */