SDL 2.0
SDL_naclopengles.c
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1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2019 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/* NaCl SDL video GLES 2 driver implementation */
26
27#include "SDL_video.h"
28#include "SDL_naclvideo.h"
29
30#if SDL_LOADSO_DLOPEN
31#include "dlfcn.h"
32#endif
33
34#include "ppapi/gles2/gl2ext_ppapi.h"
35#include "ppapi_simple/ps.h"
36
37/* GL functions */
38int
40{
41 /* FIXME: Support dynamic linking when PNACL supports it */
42 return glInitializePPAPI(PSGetInterface) == 0;
43}
44
45void *
46NACL_GLES_GetProcAddress(_THIS, const char *proc)
47{
48#if SDL_LOADSO_DLOPEN
49 return dlsym( 0 /* RTLD_DEFAULT */, proc);
50#else
51 return NULL;
52#endif
53}
54
55void
57{
58 /* FIXME: Support dynamic linking when PNACL supports it */
59 glTerminatePPAPI();
60}
61
62int
64{
66 /* FIXME: Check threading issues...otherwise use a hardcoded _this->context across all threads */
67 driverdata->ppb_instance->BindGraphics(driverdata->instance, (PP_Resource) sdl_context);
68 glSetCurrentContextPPAPI((PP_Resource) sdl_context);
69 return 0;
70}
71
74{
76 PP_Resource context, share_context = 0;
77 /* 64 seems nice. */
78 Sint32 attribs[64];
79 int i = 0;
80
82 share_context = (PP_Resource) SDL_GL_GetCurrentContext();
83 }
84
85 /* FIXME: Some ATTRIBS from PP_Graphics3DAttrib are not set here */
86
87 attribs[i++] = PP_GRAPHICS3DATTRIB_WIDTH;
88 attribs[i++] = window->w;
89 attribs[i++] = PP_GRAPHICS3DATTRIB_HEIGHT;
90 attribs[i++] = window->h;
91 attribs[i++] = PP_GRAPHICS3DATTRIB_RED_SIZE;
93 attribs[i++] = PP_GRAPHICS3DATTRIB_GREEN_SIZE;
95 attribs[i++] = PP_GRAPHICS3DATTRIB_BLUE_SIZE;
97
99 attribs[i++] = PP_GRAPHICS3DATTRIB_ALPHA_SIZE;
101 }
102
103 /*if (_this->gl_config.buffer_size) {
104 attribs[i++] = EGL_BUFFER_SIZE;
105 attribs[i++] = _this->gl_config.buffer_size;
106 }*/
107
108 attribs[i++] = PP_GRAPHICS3DATTRIB_DEPTH_SIZE;
110
112 attribs[i++] = PP_GRAPHICS3DATTRIB_STENCIL_SIZE;
114 }
115
117 attribs[i++] = PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS;
119 }
120
122 attribs[i++] = PP_GRAPHICS3DATTRIB_SAMPLES;
124 }
125
126 attribs[i++] = PP_GRAPHICS3DATTRIB_NONE;
127
128 context = driverdata->ppb_graphics->Create(driverdata->instance, share_context, attribs);
129
130 if (context) {
131 /* We need to make the context current, otherwise nothing works */
133 }
134
135 return (SDL_GLContext) context;
136}
137
138
139
140int
141NACL_GLES_SetSwapInterval(_THIS, int interval)
142{
143 /* STUB */
144 return SDL_Unsupported();
145}
146
147int
149{
150 /* STUB */
151 return 0;
152}
153
154int
156{
157 SDL_VideoData *driverdata = (SDL_VideoData *) _this->driverdata;
158 struct PP_CompletionCallback callback = { NULL, 0, PP_COMPLETIONCALLBACK_FLAG_NONE };
159 if (driverdata->ppb_graphics->SwapBuffers((PP_Resource) SDL_GL_GetCurrentContext(), callback ) != 0) {
160 return SDL_SetError("SwapBuffers failed");
161 }
162 return 0;
163}
164
165void
167{
168 SDL_VideoData *driverdata = (SDL_VideoData *) _this->driverdata;
169 driverdata->ppb_core->ReleaseResource((PP_Resource) context);
170}
171
172#endif /* SDL_VIDEO_DRIVER_NACL */
173
174/* vi: set ts=4 sw=4 expandtab: */
#define _THIS
#define SDL_SetError
#define SDL_GL_MakeCurrent
#define SDL_GL_GetCurrentContext
#define SDL_Unsupported()
Definition: SDL_error.h:53
int NACL_GLES_SwapWindow(_THIS, SDL_Window *window)
int NACL_GLES_GetSwapInterval(_THIS)
void NACL_GLES_DeleteContext(_THIS, SDL_GLContext context)
void * NACL_GLES_GetProcAddress(_THIS, const char *proc)
int NACL_GLES_MakeCurrent(_THIS, SDL_Window *window, SDL_GLContext context)
int NACL_GLES_SetSwapInterval(_THIS, int interval)
void NACL_GLES_UnloadLibrary(_THIS)
int NACL_GLES_LoadLibrary(_THIS, const char *path)
SDL_GLContext NACL_GLES_CreateContext(_THIS, SDL_Window *window)
GLsizei const GLchar *const * path
const GLint * attribs
int32_t Sint32
Definition: SDL_stdinc.h:197
static SDL_VideoDevice * _this
Definition: SDL_video.c:118
void * SDL_GLContext
An opaque handle to an OpenGL context.
Definition: SDL_video.h:193
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
#define NULL
Definition: begin_code.h:167
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
const PPB_Instance * ppb_instance
Definition: SDL_naclvideo.h:46
const PPB_Graphics3D * ppb_graphics
Definition: SDL_naclvideo.h:42
const PPB_Core * ppb_core
Definition: SDL_naclvideo.h:44
PP_Instance instance
Definition: SDL_naclvideo.h:57
struct SDL_VideoDevice::@262 gl_config
int share_with_current_context
Definition: SDL_sysvideo.h:347
The type used to identify a window.
Definition: SDL_sysvideo.h:74
static Uint32 callback(Uint32 interval, void *param)
Definition: testtimer.c:34
static screen_context_t context
Definition: video.c:25