| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "../SDL_internal.h" |
| |
| #include "SDL_vulkan_internal.h" |
| #include "SDL_error.h" |
| |
| /* !!! FIXME: this file doesn't match coding standards for SDL (brace position, etc). */ |
| |
| #if SDL_VIDEO_VULKAN |
| |
| const char *SDL_Vulkan_GetResultString(VkResult result) |
| { |
| switch((int)result) |
| { |
| case VK_SUCCESS: |
| return "VK_SUCCESS"; |
| case VK_NOT_READY: |
| return "VK_NOT_READY"; |
| case VK_TIMEOUT: |
| return "VK_TIMEOUT"; |
| case VK_EVENT_SET: |
| return "VK_EVENT_SET"; |
| case VK_EVENT_RESET: |
| return "VK_EVENT_RESET"; |
| case VK_INCOMPLETE: |
| return "VK_INCOMPLETE"; |
| case VK_ERROR_OUT_OF_HOST_MEMORY: |
| return "VK_ERROR_OUT_OF_HOST_MEMORY"; |
| case VK_ERROR_OUT_OF_DEVICE_MEMORY: |
| return "VK_ERROR_OUT_OF_DEVICE_MEMORY"; |
| case VK_ERROR_INITIALIZATION_FAILED: |
| return "VK_ERROR_INITIALIZATION_FAILED"; |
| case VK_ERROR_DEVICE_LOST: |
| return "VK_ERROR_DEVICE_LOST"; |
| case VK_ERROR_MEMORY_MAP_FAILED: |
| return "VK_ERROR_MEMORY_MAP_FAILED"; |
| case VK_ERROR_LAYER_NOT_PRESENT: |
| return "VK_ERROR_LAYER_NOT_PRESENT"; |
| case VK_ERROR_EXTENSION_NOT_PRESENT: |
| return "VK_ERROR_EXTENSION_NOT_PRESENT"; |
| case VK_ERROR_FEATURE_NOT_PRESENT: |
| return "VK_ERROR_FEATURE_NOT_PRESENT"; |
| case VK_ERROR_INCOMPATIBLE_DRIVER: |
| return "VK_ERROR_INCOMPATIBLE_DRIVER"; |
| case VK_ERROR_TOO_MANY_OBJECTS: |
| return "VK_ERROR_TOO_MANY_OBJECTS"; |
| case VK_ERROR_FORMAT_NOT_SUPPORTED: |
| return "VK_ERROR_FORMAT_NOT_SUPPORTED"; |
| case VK_ERROR_FRAGMENTED_POOL: |
| return "VK_ERROR_FRAGMENTED_POOL"; |
| case VK_ERROR_SURFACE_LOST_KHR: |
| return "VK_ERROR_SURFACE_LOST_KHR"; |
| case VK_ERROR_NATIVE_WINDOW_IN_USE_KHR: |
| return "VK_ERROR_NATIVE_WINDOW_IN_USE_KHR"; |
| case VK_SUBOPTIMAL_KHR: |
| return "VK_SUBOPTIMAL_KHR"; |
| case VK_ERROR_OUT_OF_DATE_KHR: |
| return "VK_ERROR_OUT_OF_DATE_KHR"; |
| case VK_ERROR_INCOMPATIBLE_DISPLAY_KHR: |
| return "VK_ERROR_INCOMPATIBLE_DISPLAY_KHR"; |
| case VK_ERROR_VALIDATION_FAILED_EXT: |
| return "VK_ERROR_VALIDATION_FAILED_EXT"; |
| case VK_ERROR_OUT_OF_POOL_MEMORY_KHR: |
| return "VK_ERROR_OUT_OF_POOL_MEMORY_KHR"; |
| case VK_ERROR_INVALID_SHADER_NV: |
| return "VK_ERROR_INVALID_SHADER_NV"; |
| case VK_RESULT_MAX_ENUM: |
| case VK_RESULT_RANGE_SIZE: |
| break; |
| } |
| if(result < 0) |
| return "VK_ERROR_<Unknown>"; |
| return "VK_<Unknown>"; |
| } |
| |
| VkExtensionProperties *SDL_Vulkan_CreateInstanceExtensionsList( |
| PFN_vkEnumerateInstanceExtensionProperties vkEnumerateInstanceExtensionProperties, |
| Uint32 *extensionCount) |
| { |
| Uint32 count = 0; |
| VkResult result = vkEnumerateInstanceExtensionProperties(NULL, &count, NULL); |
| VkExtensionProperties *retval; |
| if(result == VK_ERROR_INCOMPATIBLE_DRIVER) |
| { |
| /* Avoid the ERR_MAX_STRLEN limit by passing part of the message |
| * as a string argument. |
| */ |
| SDL_SetError( |
| "You probably don't have a working Vulkan driver installed. %s %s %s(%d)", |
| "Getting Vulkan extensions failed:", |
| "vkEnumerateInstanceExtensionProperties returned", |
| SDL_Vulkan_GetResultString(result), |
| (int)result); |
| return NULL; |
| } |
| else if(result != VK_SUCCESS) |
| { |
| SDL_SetError( |
| "Getting Vulkan extensions failed: vkEnumerateInstanceExtensionProperties returned " |
| "%s(%d)", |
| SDL_Vulkan_GetResultString(result), |
| (int)result); |
| return NULL; |
| } |
| if(count == 0) |
| { |
| retval = SDL_calloc(1, sizeof(VkExtensionProperties)); // so we can return non-null |
| } |
| else |
| { |
| retval = SDL_calloc(count, sizeof(VkExtensionProperties)); |
| } |
| if(!retval) |
| { |
| SDL_OutOfMemory(); |
| return NULL; |
| } |
| result = vkEnumerateInstanceExtensionProperties(NULL, &count, retval); |
| if(result != VK_SUCCESS) |
| { |
| SDL_SetError( |
| "Getting Vulkan extensions failed: vkEnumerateInstanceExtensionProperties returned " |
| "%s(%d)", |
| SDL_Vulkan_GetResultString(result), |
| (int)result); |
| SDL_free(retval); |
| return NULL; |
| } |
| *extensionCount = count; |
| return retval; |
| } |
| |
| SDL_bool SDL_Vulkan_GetInstanceExtensions_Helper(unsigned *userCount, |
| const char **userNames, |
| unsigned nameCount, |
| const char *const *names) |
| { |
| if (userNames) { |
| unsigned i; |
| |
| if (*userCount < nameCount) { |
| SDL_SetError("Output array for SDL_Vulkan_GetInstanceExtensions needs to be at least %d big", nameCount); |
| return SDL_FALSE; |
| } |
| for (i = 0; i < nameCount; i++) { |
| userNames[i] = names[i]; |
| } |
| } |
| *userCount = nameCount; |
| return SDL_TRUE; |
| } |
| |
| /* Alpha modes, in order of preference */ |
| static const VkDisplayPlaneAlphaFlagBitsKHR alphaModes[4] = { |
| VK_DISPLAY_PLANE_ALPHA_OPAQUE_BIT_KHR, |
| VK_DISPLAY_PLANE_ALPHA_GLOBAL_BIT_KHR, |
| VK_DISPLAY_PLANE_ALPHA_PER_PIXEL_BIT_KHR, |
| VK_DISPLAY_PLANE_ALPHA_PER_PIXEL_PREMULTIPLIED_BIT_KHR, |
| }; |
| |
| SDL_bool SDL_Vulkan_Display_CreateSurface(void *vkGetInstanceProcAddr_, |
| VkInstance instance, |
| VkSurfaceKHR *surface) |
| { |
| PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = |
| (PFN_vkGetInstanceProcAddr)vkGetInstanceProcAddr_; |
| #define VULKAN_INSTANCE_FUNCTION(name) \ |
| PFN_##name name = (PFN_##name)vkGetInstanceProcAddr((VkInstance)instance, #name) |
| VULKAN_INSTANCE_FUNCTION(vkEnumeratePhysicalDevices); |
| VULKAN_INSTANCE_FUNCTION(vkGetPhysicalDeviceDisplayPropertiesKHR); |
| VULKAN_INSTANCE_FUNCTION(vkGetDisplayModePropertiesKHR); |
| VULKAN_INSTANCE_FUNCTION(vkGetPhysicalDeviceDisplayPlanePropertiesKHR); |
| VULKAN_INSTANCE_FUNCTION(vkGetDisplayPlaneCapabilitiesKHR); |
| VULKAN_INSTANCE_FUNCTION(vkGetDisplayPlaneSupportedDisplaysKHR); |
| VULKAN_INSTANCE_FUNCTION(vkCreateDisplayPlaneSurfaceKHR); |
| #undef VULKAN_INSTANCE_FUNCTION |
| VkDisplaySurfaceCreateInfoKHR createInfo; |
| VkResult result; |
| uint32_t physicalDeviceCount = 0; |
| VkPhysicalDevice *physicalDevices = NULL; |
| uint32_t physicalDeviceIndex; |
| const char *chosenDisplayId; |
| int displayId = 0; /* Counting from physical device 0, display 0 */ |
| |
| if(!vkEnumeratePhysicalDevices || |
| !vkGetPhysicalDeviceDisplayPropertiesKHR || |
| !vkGetDisplayModePropertiesKHR || |
| !vkGetPhysicalDeviceDisplayPlanePropertiesKHR || |
| !vkGetDisplayPlaneCapabilitiesKHR || |
| !vkGetDisplayPlaneSupportedDisplaysKHR || |
| !vkCreateDisplayPlaneSurfaceKHR) |
| { |
| SDL_SetError(VK_KHR_DISPLAY_EXTENSION_NAME |
| " extension is not enabled in the Vulkan instance."); |
| goto error; |
| } |
| |
| if ((chosenDisplayId = SDL_getenv("SDL_VULKAN_DISPLAY")) != NULL) |
| { |
| displayId = SDL_atoi(chosenDisplayId); |
| } |
| |
| /* Enumerate physical devices */ |
| result = |
| vkEnumeratePhysicalDevices(instance, &physicalDeviceCount, NULL); |
| if(result != VK_SUCCESS) |
| { |
| SDL_SetError("Could not enumerate Vulkan physical devices"); |
| goto error; |
| } |
| if(physicalDeviceCount == 0) |
| { |
| SDL_SetError("No Vulkan physical devices"); |
| goto error; |
| } |
| physicalDevices = SDL_malloc(sizeof(VkPhysicalDevice) * physicalDeviceCount); |
| if(!physicalDevices) |
| { |
| SDL_OutOfMemory(); |
| goto error; |
| } |
| result = |
| vkEnumeratePhysicalDevices(instance, &physicalDeviceCount, physicalDevices); |
| if(result != VK_SUCCESS) |
| { |
| SDL_SetError("Error enumerating physical devices"); |
| goto error; |
| } |
| |
| for(physicalDeviceIndex = 0; physicalDeviceIndex < physicalDeviceCount; |
| physicalDeviceIndex++) |
| { |
| VkPhysicalDevice physicalDevice = physicalDevices[physicalDeviceIndex]; |
| uint32_t displayPropertiesCount = 0; |
| VkDisplayPropertiesKHR *displayProperties = NULL; |
| uint32_t displayModePropertiesCount = 0; |
| VkDisplayModePropertiesKHR *displayModeProperties = NULL; |
| int bestMatchIndex = -1; |
| uint32_t refreshRate = 0; |
| uint32_t i; |
| uint32_t displayPlanePropertiesCount = 0; |
| int planeIndex = -1; |
| VkDisplayKHR display; |
| VkDisplayPlanePropertiesKHR *displayPlaneProperties = NULL; |
| VkExtent2D extent; |
| VkDisplayPlaneCapabilitiesKHR planeCaps; |
| |
| /* Get information about the physical displays */ |
| result = |
| vkGetPhysicalDeviceDisplayPropertiesKHR(physicalDevice, &displayPropertiesCount, NULL); |
| if (result != VK_SUCCESS || displayPropertiesCount == 0) |
| { |
| /* This device has no physical device display properties, move on to next. */ |
| continue; |
| } |
| SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "vulkandisplay: Number of display properties for device %u: %u", |
| physicalDeviceIndex, displayPropertiesCount); |
| |
| if ( (displayId < 0) || (((uint32_t) displayId) >= displayPropertiesCount) ) |
| { |
| /* Display id specified was higher than number of available displays, move to next physical device. */ |
| displayId -= displayPropertiesCount; |
| continue; |
| } |
| |
| displayProperties = SDL_malloc(sizeof(VkDisplayPropertiesKHR) * displayPropertiesCount); |
| if(!displayProperties) |
| { |
| SDL_OutOfMemory(); |
| goto error; |
| } |
| |
| result = |
| vkGetPhysicalDeviceDisplayPropertiesKHR(physicalDevice, &displayPropertiesCount, displayProperties); |
| if (result != VK_SUCCESS || displayPropertiesCount == 0) { |
| SDL_free(displayProperties); |
| SDL_SetError("Error enumerating physical device displays"); |
| goto error; |
| } |
| |
| display = displayProperties[displayId].display; |
| extent = displayProperties[displayId].physicalResolution; |
| SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "vulkandisplay: Display: %s Native resolution: %ux%u", |
| displayProperties[displayId].displayName, extent.width, extent.height); |
| |
| SDL_free(displayProperties); |
| displayProperties = NULL; |
| |
| /* Get display mode properties for the chosen display */ |
| result = |
| vkGetDisplayModePropertiesKHR(physicalDevice, display, &displayModePropertiesCount, NULL); |
| if (result != VK_SUCCESS || displayModePropertiesCount == 0) |
| { |
| SDL_SetError("Error enumerating display modes"); |
| goto error; |
| } |
| SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "vulkandisplay: Number of display modes: %u", displayModePropertiesCount); |
| |
| displayModeProperties = SDL_malloc(sizeof(VkDisplayModePropertiesKHR) * displayModePropertiesCount); |
| if(!displayModeProperties) |
| { |
| SDL_OutOfMemory(); |
| goto error; |
| } |
| |
| result = |
| vkGetDisplayModePropertiesKHR(physicalDevice, display, &displayModePropertiesCount, displayModeProperties); |
| if (result != VK_SUCCESS || displayModePropertiesCount == 0) { |
| SDL_SetError("Error enumerating display modes"); |
| SDL_free(displayModeProperties); |
| goto error; |
| } |
| |
| /* Try to find a display mode that matches the native resolution */ |
| for (i = 0; i < displayModePropertiesCount; ++i) |
| { |
| if (displayModeProperties[i].parameters.visibleRegion.width == extent.width && |
| displayModeProperties[i].parameters.visibleRegion.height == extent.height && |
| displayModeProperties[i].parameters.refreshRate > refreshRate) |
| { |
| bestMatchIndex = i; |
| refreshRate = displayModeProperties[i].parameters.refreshRate; |
| } |
| } |
| if (bestMatchIndex < 0) |
| { |
| SDL_SetError("Found no matching display mode"); |
| SDL_free(displayModeProperties); |
| goto error; |
| } |
| |
| SDL_zero(createInfo); |
| createInfo.displayMode = displayModeProperties[bestMatchIndex].displayMode; |
| SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "vulkandisplay: Matching mode %ux%u with refresh rate %u", |
| displayModeProperties[bestMatchIndex].parameters.visibleRegion.width, |
| displayModeProperties[bestMatchIndex].parameters.visibleRegion.height, |
| refreshRate); |
| |
| SDL_free(displayModeProperties); |
| displayModeProperties = NULL; |
| |
| /* Try to find a plane index that supports our display */ |
| result = |
| vkGetPhysicalDeviceDisplayPlanePropertiesKHR(physicalDevice, &displayPlanePropertiesCount, NULL); |
| if (result != VK_SUCCESS || displayPlanePropertiesCount == 0) |
| { |
| SDL_SetError("Error enumerating display planes"); |
| goto error; |
| } |
| SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "vulkandisplay: Number of display planes: %u", displayPlanePropertiesCount); |
| |
| displayPlaneProperties = SDL_malloc(sizeof(VkDisplayPlanePropertiesKHR) * displayPlanePropertiesCount); |
| if(!displayPlaneProperties) |
| { |
| SDL_OutOfMemory(); |
| goto error; |
| } |
| |
| result = |
| vkGetPhysicalDeviceDisplayPlanePropertiesKHR(physicalDevice, &displayPlanePropertiesCount, displayPlaneProperties); |
| if (result != VK_SUCCESS || displayPlanePropertiesCount == 0) |
| { |
| SDL_SetError("Error enumerating display plane properties"); |
| SDL_free(displayPlaneProperties); |
| goto error; |
| } |
| |
| for (i = 0; i < displayPlanePropertiesCount; ++i) |
| { |
| uint32_t planeSupportedDisplaysCount = 0; |
| VkDisplayKHR *planeSupportedDisplays = NULL; |
| uint32_t j; |
| |
| /* Check if plane is attached to a display, if not, continue. */ |
| if (displayPlaneProperties[i].currentDisplay == VK_NULL_HANDLE) |
| continue; |
| |
| /* Check supported displays for this plane. */ |
| result = |
| vkGetDisplayPlaneSupportedDisplaysKHR(physicalDevice, i, &planeSupportedDisplaysCount, NULL); |
| if (result != VK_SUCCESS || planeSupportedDisplaysCount == 0) |
| { |
| continue; /* No supported displays, on to next plane. */ |
| } |
| SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "vulkandisplay: Number of supported displays for plane %u: %u", i, planeSupportedDisplaysCount); |
| |
| planeSupportedDisplays = SDL_malloc(sizeof(VkDisplayKHR) * planeSupportedDisplaysCount); |
| if(!planeSupportedDisplays) |
| { |
| SDL_free(displayPlaneProperties); |
| SDL_OutOfMemory(); |
| goto error; |
| } |
| |
| result = |
| vkGetDisplayPlaneSupportedDisplaysKHR(physicalDevice, i, &planeSupportedDisplaysCount, planeSupportedDisplays); |
| if (result != VK_SUCCESS || planeSupportedDisplaysCount == 0) |
| { |
| SDL_SetError("Error enumerating supported displays, or no supported displays"); |
| SDL_free(planeSupportedDisplays); |
| SDL_free(displayPlaneProperties); |
| goto error; |
| } |
| |
| for (j = 0; j < planeSupportedDisplaysCount && planeSupportedDisplays[j] != display; ++j) |
| ; |
| |
| SDL_free(planeSupportedDisplays); |
| planeSupportedDisplays = NULL; |
| |
| if (j == planeSupportedDisplaysCount) |
| { |
| /* This display is not supported for this plane, move on. */ |
| continue; |
| } |
| |
| result = vkGetDisplayPlaneCapabilitiesKHR(physicalDevice, createInfo.displayMode, i, &planeCaps); |
| if (result != VK_SUCCESS) |
| { |
| SDL_SetError("Error getting display plane capabilities"); |
| SDL_free(displayPlaneProperties); |
| goto error; |
| } |
| |
| /* Check if plane fulfills extent requirements. */ |
| if (extent.width >= planeCaps.minDstExtent.width && extent.height >= planeCaps.minDstExtent.height && |
| extent.width <= planeCaps.maxDstExtent.width && extent.height <= planeCaps.maxDstExtent.height) |
| { |
| /* If it does, choose this plane. */ |
| SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "vulkandisplay: Choosing plane %d, minimum extent %dx%d maximum extent %dx%d", i, |
| planeCaps.minDstExtent.width, planeCaps.minDstExtent.height, |
| planeCaps.maxDstExtent.width, planeCaps.maxDstExtent.height); |
| planeIndex = i; |
| break; |
| } |
| } |
| |
| if (planeIndex < 0) |
| { |
| SDL_SetError("No plane supports the selected resolution"); |
| SDL_free(displayPlaneProperties); |
| goto error; |
| } |
| |
| createInfo.planeIndex = planeIndex; |
| createInfo.planeStackIndex = displayPlaneProperties[planeIndex].currentStackIndex; |
| SDL_free(displayPlaneProperties); |
| displayPlaneProperties = NULL; |
| |
| /* Find a supported alpha mode. Not all planes support OPAQUE */ |
| createInfo.alphaMode = VK_DISPLAY_PLANE_ALPHA_OPAQUE_BIT_KHR; |
| for (i = 0; i < SDL_arraysize(alphaModes); i++) { |
| if (planeCaps.supportedAlpha & alphaModes[i]) { |
| createInfo.alphaMode = alphaModes[i]; |
| break; |
| } |
| } |
| SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "vulkandisplay: Chose alpha mode 0x%x", createInfo.alphaMode); |
| |
| /* Found a match, finally! Fill in extent, and break from loop */ |
| createInfo.imageExtent = extent; |
| break; |
| } |
| |
| SDL_free(physicalDevices); |
| physicalDevices = NULL; |
| |
| if (physicalDeviceIndex == physicalDeviceCount) |
| { |
| SDL_SetError("No usable displays found or requested display out of range"); |
| return SDL_FALSE; |
| } |
| |
| createInfo.sType = VK_STRUCTURE_TYPE_DISPLAY_SURFACE_CREATE_INFO_KHR; |
| createInfo.transform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR; |
| createInfo.globalAlpha = 1.0f; |
| |
| result = vkCreateDisplayPlaneSurfaceKHR(instance, &createInfo, |
| NULL, surface); |
| if(result != VK_SUCCESS) |
| { |
| SDL_SetError("vkCreateDisplayPlaneSurfaceKHR failed: %s", |
| SDL_Vulkan_GetResultString(result)); |
| return SDL_FALSE; |
| } |
| SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "vulkandisplay: Created surface"); |
| return SDL_TRUE; |
| error: |
| SDL_free(physicalDevices); |
| return SDL_FALSE; |
| } |
| |
| #endif |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
