SDL  2.0
SDL_vivantevulkan.c
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
4 
5  This software is provided 'as-is', without any express or implied
6  warranty. In no event will the authors be held liable for any damages
7  arising from the use of this software.
8 
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12 
13  1. The origin of this software must not be misrepresented; you must not
14  claim that you wrote the original software. If you use this software
15  in a product, an acknowledgment in the product documentation would be
16  appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18  misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20 */
21 
22 /*
23  * @author Wladimir J. van der Laan. Based on Jacob Lifshay's
24  * SDL_x11vulkan.c, Mark Callow's SDL_androidvulkan.c, and
25  * the FSL demo framework.
26  */
27 
28 #include "../../SDL_internal.h"
29 
30 #if SDL_VIDEO_VULKAN && SDL_VIDEO_DRIVER_VIVANTE
31 
32 #include "SDL_vivantevideo.h"
33 #include "SDL_assert.h"
34 
35 #include "SDL_loadso.h"
36 #include "SDL_vivantevulkan.h"
37 #include "SDL_syswm.h"
38 #include "SDL_log.h"
39 
40 int VIVANTE_Vulkan_LoadLibrary(_THIS, const char *path)
41 {
42  VkExtensionProperties *extensions = NULL;
43  Uint32 i, extensionCount = 0;
44  SDL_bool hasSurfaceExtension = SDL_FALSE;
45  SDL_bool hasDisplayExtension = SDL_FALSE;
48  return SDL_SetError("Vulkan already loaded");
49 
50  /* Load the Vulkan loader library */
51  if(!path)
52  path = SDL_getenv("SDL_VULKAN_LIBRARY");
53  if(!path)
54  {
55  /* If no path set, try Vivante fb vulkan driver explicitly */
56  path = "libvulkan-fb.so";
59  {
60  /* If that couldn't be loaded, fall back to default name */
61  path = "libvulkan.so";
63  }
64  } else {
66  }
68  return -1;
71  SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "vivante: Loaded vulkan driver %s", path);
73  _this->vulkan_config.loader_handle, "vkGetInstanceProcAddr");
75  goto fail;
79  VK_NULL_HANDLE, "vkEnumerateInstanceExtensionProperties");
81  goto fail;
82  extensions = SDL_Vulkan_CreateInstanceExtensionsList(
85  &extensionCount);
86  if(!extensions)
87  goto fail;
88  for(i = 0; i < extensionCount; i++)
89  {
90  if(SDL_strcmp(VK_KHR_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0)
91  hasSurfaceExtension = SDL_TRUE;
92  else if(SDL_strcmp(VK_KHR_DISPLAY_EXTENSION_NAME, extensions[i].extensionName) == 0)
93  hasDisplayExtension = SDL_TRUE;
94  }
95  SDL_free(extensions);
96  if(!hasSurfaceExtension)
97  {
98  SDL_SetError("Installed Vulkan doesn't implement the "
99  VK_KHR_SURFACE_EXTENSION_NAME " extension");
100  goto fail;
101  }
102  else if(!hasDisplayExtension)
103  {
104  SDL_SetError("Installed Vulkan doesn't implement the "
105  VK_KHR_DISPLAY_EXTENSION_NAME "extension");
106  goto fail;
107  }
108  return 0;
109 
110 fail:
113  return -1;
114 }
115 
116 void VIVANTE_Vulkan_UnloadLibrary(_THIS)
117 {
119  {
122  }
123 }
124 
125 SDL_bool VIVANTE_Vulkan_GetInstanceExtensions(_THIS,
127  unsigned *count,
128  const char **names)
129 {
130  static const char *const extensionsForVivante[] = {
132  };
134  {
135  SDL_SetError("Vulkan is not loaded");
136  return SDL_FALSE;
137  }
138  return SDL_Vulkan_GetInstanceExtensions_Helper(
139  count, names, SDL_arraysize(extensionsForVivante),
140  extensionsForVivante);
141 }
142 
143 SDL_bool VIVANTE_Vulkan_CreateSurface(_THIS,
145  VkInstance instance,
146  VkSurfaceKHR *surface)
147 {
149  {
150  SDL_SetError("Vulkan is not loaded");
151  return SDL_FALSE;
152  }
153  return SDL_Vulkan_Display_CreateSurface(_this->vulkan_config.vkGetInstanceProcAddr, instance, surface);
154 }
155 
156 #endif
157 
158 /* vi: set ts=4 sw=4 expandtab: */
159 
Uint32
uint32_t Uint32
Definition: SDL_stdinc.h:203
SDL_strlcpy
#define SDL_strlcpy
Definition: SDL_dynapi_overrides.h:394
SDL_VideoDevice::vkGetInstanceProcAddr
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr
Definition: SDL_sysvideo.h:372
PFN_vkGetInstanceProcAddr
PFN_vkVoidFunction(VKAPI_PTR * PFN_vkGetInstanceProcAddr)(VkInstance instance, const char *pName)
Definition: vulkan_core.h:2859
NULL
#define NULL
Definition: begin_code.h:167
surface
EGLSurface surface
Definition: eglext.h:248
SDL_log.h
count
GLuint GLuint GLsizei count
Definition: SDL_opengl.h:1571
VK_KHR_DISPLAY_EXTENSION_NAME
#define VK_KHR_DISPLAY_EXTENSION_NAME
Definition: vulkan_core.h:4953
vkGetInstanceProcAddr
VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL vkGetInstanceProcAddr(VkInstance instance, const char *pName)
SDL_UnloadObject
#define SDL_UnloadObject
Definition: SDL_dynapi_overrides.h:234
path
GLsizei const GLchar *const * path
Definition: SDL_opengl_glext.h:3730
SDL_LoadObject
#define SDL_LoadObject
Definition: SDL_dynapi_overrides.h:232
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDL_vivantevideo.h
VK_KHR_SURFACE_EXTENSION_NAME
#define VK_KHR_SURFACE_EXTENSION_NAME
Definition: vulkan_core.h:4669
SDL_FALSE
@ SDL_FALSE
Definition: SDL_stdinc.h:163
VK_NULL_HANDLE
#define VK_NULL_HANDLE
Definition: vulkan_core.h:49
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:118
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
PFN_vkEnumerateInstanceExtensionProperties
VkResult(VKAPI_PTR * PFN_vkEnumerateInstanceExtensionProperties)(const char *pLayerName, uint32_t *pPropertyCount, VkExtensionProperties *pProperties)
Definition: vulkan_core.h:2863
SDL_free
#define SDL_free
Definition: SDL_dynapi_overrides.h:377
SDL_VideoDevice::loader_handle
void * loader_handle
Definition: SDL_sysvideo.h:376
SDL_LogDebug
#define SDL_LogDebug
Definition: SDL_dynapi_overrides.h:33
SDL_VideoDevice::loader_path
char loader_path[256]
Definition: SDL_sysvideo.h:375
SDL_LOG_CATEGORY_VIDEO
@ SDL_LOG_CATEGORY_VIDEO
Definition: SDL_log.h:71
SDL_assert.h
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
names
GLuint GLuint * names
Definition: SDL_opengl_glext.h:4956
SDL_VideoDevice::vkEnumerateInstanceExtensionProperties
PFN_vkEnumerateInstanceExtensionProperties vkEnumerateInstanceExtensionProperties
Definition: SDL_sysvideo.h:373
SDL_arraysize
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115
SDL_vivantevulkan.h
SDL_getenv
#define SDL_getenv
Definition: SDL_dynapi_overrides.h:378
SDL_TRUE
@ SDL_TRUE
Definition: SDL_stdinc.h:164
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:30
SDL_LoadFunction
void * SDL_LoadFunction(void *handle, const char *name)
VkExtensionProperties
Definition: vulkan_core.h:2047
SDL_strcmp
#define SDL_strcmp
Definition: SDL_dynapi_overrides.h:417
SDL_VideoDevice::vulkan_config
struct SDL_VideoDevice::@263 vulkan_config
SDL_loadso.h
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:161
SDL_syswm.h