SDL_androidvulkan.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
/*
Simple DirectMedia Layer
Copyright (C) 1997-2016 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.
*/
/*
* @author Mark Callow, www.edgewise-consulting.com. Based on Jacob Lifshay's
* SDL_x11vulkan.c.
*/
#include "../../SDL_internal.h"
#if SDL_VIDEO_VULKAN_SURFACE && SDL_VIDEO_DRIVER_ANDROID
#include "SDL_androidvideo.h"
#include "SDL_androidwindow.h"
#include "SDL_assert.h"
#include "SDL_loadso.h"
#include "SDL_androidvulkan.h"
#include "SDL_syswm.h"
int Android_Vulkan_LoadLibrary(_THIS, const char *path)
{
VkExtensionProperties *extensions = NULL;
Uint32 extensionCount = 0;
SDL_bool hasSurfaceExtension = SDL_FALSE;
SDL_bool hasAndroidSurfaceExtension = SDL_FALSE;
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = NULL;
if(_this->vulkan_config.loader_handle)
return SDL_SetError("Vulkan already loaded");
/* Load the Vulkan loader library */
if(!path)
path = SDL_getenv("SDL_VULKAN_LIBRARY");
if(!path)
path = "libvulkan.so.1";
_this->vulkan_config.loader_handle = SDL_LoadObject(path);
if(!_this->vulkan_config.loader_handle)
return -1;
SDL_strlcpy(_this->vulkan_config.loader_path, path,
SDL_arraysize(_this->vulkan_config.loader_path));
vkGetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)SDL_LoadFunction(
_this->vulkan_config.loader_handle, "vkGetInstanceProcAddr");
if(!vkGetInstanceProcAddr)
goto fail;
_this->vulkan_config.vkGetInstanceProcAddr = (void *)vkGetInstanceProcAddr;
_this->vulkan_config.vkEnumerateInstanceExtensionProperties =
(void *)((PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr)(
VK_NULL_HANDLE, "vkEnumerateInstanceExtensionProperties");
if(!_this->vulkan_config.vkEnumerateInstanceExtensionProperties)
goto fail;
extensions = SDL_Vulkan_CreateInstanceExtensionsList(
(PFN_vkEnumerateInstanceExtensionProperties)
_this->vulkan_config.vkEnumerateInstanceExtensionProperties,
&extensionCount);
if(!extensions)
goto fail;
for(Uint32 i = 0; i < extensionCount; i++)
{
if(SDL_strcmp(VK_KHR_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0)
hasSurfaceExtension = SDL_TRUE;
else if(SDL_strcmp(VK_KHR_ANDROID_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0)
hasAndroidSurfaceExtension = SDL_TRUE;
}
SDL_free(extensions);
if(!hasSurfaceExtension)
{
SDL_SetError("Installed Vulkan doesn't implement the "
VK_KHR_SURFACE_EXTENSION_NAME " extension");
goto fail;
}
else if(!hasAndroidSurfaceExtension)
{
SDL_SetError("Installed Vulkan doesn't implement the "
VK_KHR_ANDROID_SURFACE_EXTENSION_NAME "extension");
goto fail;
}
return 0;
fail:
SDL_UnloadObject(_this->vulkan_config.loader_handle);
_this->vulkan_config.loader_handle = NULL;
return -1;
}
void Android_Vulkan_UnloadLibrary(_THIS)
{
if(_this->vulkan_config.loader_handle)
{
SDL_UnloadObject(_this->vulkan_config.loader_handle);
_this->vulkan_config.loader_handle = NULL;
}
}
SDL_bool Android_Vulkan_GetInstanceExtensions(_THIS,
SDL_Window *window,
unsigned *count,
const char **names)
{
static const char *const extensionsForAndroid[] = {
VK_KHR_SURFACE_EXTENSION_NAME, VK_KHR_ANDROID_SURFACE_EXTENSION_NAME
};
if(!_this->vulkan_config.loader_handle)
{
SDL_SetError("Vulkan is not loaded");
return SDL_FALSE;
}
return SDL_Vulkan_GetInstanceExtensions_Helper(
count, names, SDL_arraysize(extensionsForMir),
extensionsForAndroid);
}
SDL_bool Android_Vulkan_CreateSurface(_THIS,
SDL_Window *window,
VkInstance instance,
VkSurfaceKHR *surface)
{
SDL_WindowData *windowData = (SDL_WindowData *)window->driverdata;
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr =
(PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr;
PFN_vkCreateAndroidSurfaceKHR vkCreateAndroidSurfaceKHR =
(PFN_vkCreateAndroidSurfaceKHR)vkGetInstanceProcAddr(
(VkInstance)instance,
"vkCreateAndroidSurfaceKHR");
VkAndroidSurfaceCreateInfoKHR createInfo = {};
VkResult result;
if(!_this->vulkan_config.loader_handle)
{
SDL_SetError("Vulkan is not loaded");
return SDL_FALSE;
}
if(!vkCreateAndroidSurfaceKHR)
{
SDL_SetError(VK_KHR_Android_SURFACE_EXTENSION_NAME
" extension is not enabled in the Vulkan instance.");
return SDL_FALSE;
}
createInfo.sType = VK_STRUCTURE_TYPE_Android_SURFACE_CREATE_INFO_KHR;
createInfo.pNext = NULL;
createInfo.flags = 0;
createInfo.window = windowData->native_window;
result = vkCreateAndroidSurfaceKHR(instance, &createInfo,
NULL, surface);
if(result != VK_SUCCESS)
{
SDL_SetError("vkCreateAndroidSurfaceKHR failed: %s",
SDL_Vulkan_GetResultString(result));
return SDL_FALSE;
}
return SDL_TRUE;
}
#endif
/* vi: set ts=4 sw=4 expandtab: */