SDL  2.0
SDL_x11opengles.c
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 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_X11 && SDL_VIDEO_OPENGL_EGL
24 
25 #include "SDL_x11video.h"
26 #include "SDL_x11opengles.h"
27 #include "SDL_x11opengl.h"
28 
29 /* EGL implementation of SDL OpenGL support */
30 
31 int
32 X11_GLES_LoadLibrary(_THIS, const char *path)
33 {
35 
36  /* If the profile requested is not GL ES, switch over to X11_GL functions */
38  #if SDL_VIDEO_OPENGL_GLX
39  X11_GLES_UnloadLibrary(_this);
40  _this->GL_LoadLibrary = X11_GL_LoadLibrary;
41  _this->GL_GetProcAddress = X11_GL_GetProcAddress;
42  _this->GL_UnloadLibrary = X11_GL_UnloadLibrary;
43  _this->GL_CreateContext = X11_GL_CreateContext;
44  _this->GL_MakeCurrent = X11_GL_MakeCurrent;
45  _this->GL_SetSwapInterval = X11_GL_SetSwapInterval;
46  _this->GL_GetSwapInterval = X11_GL_GetSwapInterval;
47  _this->GL_SwapWindow = X11_GL_SwapWindow;
48  _this->GL_DeleteContext = X11_GL_DeleteContext;
49  return X11_GL_LoadLibrary(_this, path);
50  #else
51  return SDL_SetError("SDL not configured with OpenGL/GLX support");
52  #endif
53  }
54 
55  return SDL_EGL_LoadLibrary(_this, path, (NativeDisplayType) data->display, 0);
56 }
57 
58 XVisualInfo *
59 X11_GLES_GetVisual(_THIS, Display * display, int screen)
60 {
61 
62  XVisualInfo *egl_visualinfo = NULL;
63  EGLint visual_id;
64  XVisualInfo vi_in;
65  int out_count;
66 
67  if (!_this->egl_data) {
68  /* The EGL library wasn't loaded, SDL_GetError() should have info */
69  return NULL;
70  }
71 
72  if (_this->egl_data->eglGetConfigAttrib(_this->egl_data->egl_display,
73  _this->egl_data->egl_config,
75  &visual_id) == EGL_FALSE || !visual_id) {
76  /* Use the default visual when all else fails */
77  vi_in.screen = screen;
78  egl_visualinfo = X11_XGetVisualInfo(display,
79  VisualScreenMask,
80  &vi_in, &out_count);
81  } else {
82  vi_in.screen = screen;
83  vi_in.visualid = visual_id;
84  egl_visualinfo = X11_XGetVisualInfo(display, VisualScreenMask | VisualIDMask, &vi_in, &out_count);
85  }
86 
87  return egl_visualinfo;
88 }
89 
91 X11_GLES_CreateContext(_THIS, SDL_Window * window)
92 {
94  SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
95  Display *display = data->videodata->display;
96 
97  X11_XSync(display, False);
98  context = SDL_EGL_CreateContext(_this, data->egl_surface);
99  X11_XSync(display, False);
100 
101  return context;
102 }
103 
104 SDL_EGL_SwapWindow_impl(X11)
105 SDL_EGL_MakeCurrent_impl(X11)
106 
107 #endif /* SDL_VIDEO_DRIVER_X11 && SDL_VIDEO_OPENGL_EGL */
108 
109 /* vi: set ts=4 sw=4 expandtab: */
struct wl_display * display
int(* GL_SetSwapInterval)(_THIS, int interval)
Definition: SDL_sysvideo.h:261
static screen_context_t context
Definition: video.c:25
set set set set set set set macro pixldst1 abits if abits op else op endif endm macro pixldst2 abits if abits op else op endif endm macro pixldst4 abits if abits op else op endif endm macro pixldst0 abits op endm macro pixldst3 mem_operand op endm macro pixldst30 mem_operand op endm macro pixldst abits if abits elseif abits elseif abits elseif abits elseif abits pixldst0 abits else pixldst0 abits pixldst0 abits pixldst0 abits pixldst0 abits endif elseif abits else pixldst0 abits pixldst0 abits endif elseif abits else error unsupported bpp *numpix else pixst endif endm macro pixld1_s mem_operand if asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl elseif asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl else error unsupported endif endm macro pixld2_s mem_operand if mov asr add asl add asl mov asr sub UNIT_X add asl mov asr add asl add asl mov asr add UNIT_X add asl else pixld1_s mem_operand pixld1_s mem_operand endif endm macro pixld0_s mem_operand if asr adds SRC_WIDTH_FIXED bpl add asl elseif asr adds SRC_WIDTH_FIXED bpl add asl endif endm macro pixld_s_internal mem_operand if mem_operand pixld2_s mem_operand pixdeinterleave basereg elseif mem_operand elseif mem_operand elseif mem_operand elseif mem_operand pixld0_s mem_operand else pixld0_s mem_operand pixld0_s mem_operand pixld0_s mem_operand pixld0_s mem_operand endif elseif mem_operand else pixld0_s mem_operand pixld0_s mem_operand endif elseif mem_operand else error unsupported mem_operand if bpp mem_operand endif endm macro vuzp8 reg2 vuzp d d &reg2 endm macro vzip8 reg2 vzip d d &reg2 endm macro pixdeinterleave basereg basereg basereg basereg basereg endif endm macro pixinterleave basereg basereg basereg basereg basereg endif endm macro PF boost_increment endif if endif PF tst PF addne PF subne PF cmp ORIG_W if endif if endif if endif PF subge ORIG_W PF subges if endif if endif if endif endif endm macro cache_preload_simple endif if dst_r_bpp pld [DST_R, #(PREFETCH_DISTANCE_SIMPLE *dst_r_bpp/8)] endif if mask_bpp pld if[MASK, #(PREFETCH_DISTANCE_SIMPLE *mask_bpp/8)] endif endif endm macro fetch_mask_pixblock pixld mask_basereg pixblock_size MASK endm macro ensure_destination_ptr_alignment process_pixblock_tail_head if beq irp local skip1(dst_w_bpp<=(lowbit *8)) &&((lowbit *8)<(pixblock_size *dst_w_bpp)) .if lowbit< 16 tst DST_R
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
int(* GL_LoadLibrary)(_THIS, const char *path)
Definition: SDL_sysvideo.h:255
#define EGL_NATIVE_VISUAL_ID
Definition: egl.h:93
struct SDL_VideoDevice::@33 gl_config
static SDL_VideoDevice * _this
Definition: SDL_video.c:121
void * SDL_GLContext
An opaque handle to an OpenGL context.
Definition: SDL_video.h:193
SDL_GLContext(* GL_CreateContext)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:258
#define _THIS
struct SDL_VideoData * videodata
int(* GL_MakeCurrent)(_THIS, SDL_Window *window, SDL_GLContext context)
Definition: SDL_sysvideo.h:259
khronos_int32_t EGLint
Definition: eglplatform.h:122
#define EGL_FALSE
Definition: egl.h:84
void(* GL_UnloadLibrary)(_THIS)
Definition: SDL_sysvideo.h:257
#define NULL
Definition: begin_code.h:164
#define SDL_SetError
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
int(* GL_SwapWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:263
The type used to identify a window.
Definition: SDL_sysvideo.h:73
EGLNativeDisplayType NativeDisplayType
Definition: eglplatform.h:110
GLsizei const GLchar *const * path
void * driverdata
Definition: SDL_sysvideo.h:111
void(* GL_DeleteContext)(_THIS, SDL_GLContext context)
Definition: SDL_sysvideo.h:264
int(* GL_GetSwapInterval)(_THIS)
Definition: SDL_sysvideo.h:262
SDL_Renderer * screen
void *(* GL_GetProcAddress)(_THIS, const char *proc)
Definition: SDL_sysvideo.h:256
EGLSurface egl_surface