1 /*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2020 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 #include "../../SDL_internal.h"
22
23 #if SDL_VIDEO_DRIVER_NACL
24
25 #include "ppapi/c/pp_errors.h"
26 #include "ppapi/c/pp_instance.h"
27 #include "ppapi_simple/ps.h"
28 #include "ppapi_simple/ps_interface.h"
29 #include "ppapi_simple/ps_event.h"
30 #include "nacl_io/nacl_io.h"
31
32 #include "SDL_naclvideo.h"
33 #include "SDL_naclwindow.h"
34 #include "SDL_naclevents_c.h"
35 #include "SDL_naclopengles.h"
36 #include "SDL_video.h"
37 #include "../SDL_sysvideo.h"
38 #include "../../events/SDL_events_c.h"
39
40 #define NACLVID_DRIVER_NAME "nacl"
41
42 /* Static init required because NACL_SetScreenResolution
43 * may appear even before SDL starts and we want to remember
44 * the window width and height
45 */
46 static SDL_VideoData nacl = {0};
47
48 void
NACL_SetScreenResolution(int width,int height,Uint32 format)49 NACL_SetScreenResolution(int width, int height, Uint32 format)
50 {
51 PP_Resource context;
52
53 nacl.w = width;
54 nacl.h = height;
55 nacl.format = format;
56
57 if (nacl.window) {
58 nacl.window->w = width;
59 nacl.window->h = height;
60 SDL_SendWindowEvent(nacl.window, SDL_WINDOWEVENT_RESIZED, width, height);
61 }
62
63 /* FIXME: Check threading issues...otherwise use a hardcoded _this->context across all threads */
64 context = (PP_Resource) SDL_GL_GetCurrentContext();
65 if (context) {
66 PSInterfaceGraphics3D()->ResizeBuffers(context, width, height);
67 }
68
69 }
70
71
72
73 /* Initialization/Query functions */
74 static int NACL_VideoInit(_THIS);
75 static void NACL_VideoQuit(_THIS);
76
NACL_Available(void)77 static int NACL_Available(void) {
78 return PSGetInstanceId() != 0;
79 }
80
NACL_DeleteDevice(SDL_VideoDevice * device)81 static void NACL_DeleteDevice(SDL_VideoDevice *device) {
82 SDL_VideoData *driverdata = (SDL_VideoData*) device->driverdata;
83 driverdata->ppb_core->ReleaseResource((PP_Resource) driverdata->ppb_message_loop);
84 /* device->driverdata is not freed because it points to static memory */
85 SDL_free(device);
86 }
87
88 static int
NACL_SetDisplayMode(_THIS,SDL_VideoDisplay * display,SDL_DisplayMode * mode)89 NACL_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)
90 {
91 return 0;
92 }
93
NACL_CreateDevice(int devindex)94 static SDL_VideoDevice *NACL_CreateDevice(int devindex) {
95 SDL_VideoDevice *device;
96
97 /* Initialize all variables that we clean on shutdown */
98 device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
99 if (!device) {
100 SDL_OutOfMemory();
101 return NULL;
102 }
103 device->driverdata = &nacl;
104
105 /* Set the function pointers */
106 device->VideoInit = NACL_VideoInit;
107 device->VideoQuit = NACL_VideoQuit;
108 device->PumpEvents = NACL_PumpEvents;
109
110 device->CreateSDLWindow = NACL_CreateWindow;
111 device->SetWindowTitle = NACL_SetWindowTitle;
112 device->DestroyWindow = NACL_DestroyWindow;
113
114 device->SetDisplayMode = NACL_SetDisplayMode;
115
116 device->free = NACL_DeleteDevice;
117
118 /* GL pointers */
119 device->GL_LoadLibrary = NACL_GLES_LoadLibrary;
120 device->GL_GetProcAddress = NACL_GLES_GetProcAddress;
121 device->GL_UnloadLibrary = NACL_GLES_UnloadLibrary;
122 device->GL_CreateContext = NACL_GLES_CreateContext;
123 device->GL_MakeCurrent = NACL_GLES_MakeCurrent;
124 device->GL_SetSwapInterval = NACL_GLES_SetSwapInterval;
125 device->GL_GetSwapInterval = NACL_GLES_GetSwapInterval;
126 device->GL_SwapWindow = NACL_GLES_SwapWindow;
127 device->GL_DeleteContext = NACL_GLES_DeleteContext;
128
129
130 return device;
131 }
132
133 VideoBootStrap NACL_bootstrap = {
134 NACLVID_DRIVER_NAME, "SDL Native Client Video Driver",
135 NACL_Available, NACL_CreateDevice
136 };
137
NACL_VideoInit(_THIS)138 int NACL_VideoInit(_THIS) {
139 SDL_VideoData *driverdata = (SDL_VideoData *) _this->driverdata;
140 SDL_DisplayMode mode;
141
142 SDL_zero(mode);
143 mode.format = driverdata->format;
144 mode.w = driverdata->w;
145 mode.h = driverdata->h;
146 mode.refresh_rate = 0;
147 mode.driverdata = NULL;
148 if (SDL_AddBasicVideoDisplay(&mode) < 0) {
149 return -1;
150 }
151
152 SDL_AddDisplayMode(&_this->displays[0], &mode);
153
154 PSInterfaceInit();
155 driverdata->instance = PSGetInstanceId();
156 driverdata->ppb_graphics = PSInterfaceGraphics3D();
157 driverdata->ppb_message_loop = PSInterfaceMessageLoop();
158 driverdata->ppb_core = PSInterfaceCore();
159 driverdata->ppb_fullscreen = PSInterfaceFullscreen();
160 driverdata->ppb_instance = PSInterfaceInstance();
161 driverdata->ppb_image_data = PSInterfaceImageData();
162 driverdata->ppb_view = PSInterfaceView();
163 driverdata->ppb_var = PSInterfaceVar();
164 driverdata->ppb_input_event = (PPB_InputEvent*) PSGetInterface(PPB_INPUT_EVENT_INTERFACE);
165 driverdata->ppb_keyboard_input_event = (PPB_KeyboardInputEvent*) PSGetInterface(PPB_KEYBOARD_INPUT_EVENT_INTERFACE);
166 driverdata->ppb_mouse_input_event = (PPB_MouseInputEvent*) PSGetInterface(PPB_MOUSE_INPUT_EVENT_INTERFACE);
167 driverdata->ppb_wheel_input_event = (PPB_WheelInputEvent*) PSGetInterface(PPB_WHEEL_INPUT_EVENT_INTERFACE);
168 driverdata->ppb_touch_input_event = (PPB_TouchInputEvent*) PSGetInterface(PPB_TOUCH_INPUT_EVENT_INTERFACE);
169
170
171 driverdata->message_loop = driverdata->ppb_message_loop->Create(driverdata->instance);
172
173 PSEventSetFilter(PSE_ALL);
174
175 /* We're done! */
176 return 0;
177 }
178
NACL_VideoQuit(_THIS)179 void NACL_VideoQuit(_THIS) {
180 }
181
182 #endif /* SDL_VIDEO_DRIVER_NACL */
183 /* vi: set ts=4 sw=4 expandtab: */
184