SDL  2.0
SDL_x11opengles.c
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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_X11 && SDL_VIDEO_OPENGL_EGL
24 
25 #include "SDL_hints.h"
26 #include "SDL_x11video.h"
27 #include "SDL_x11opengles.h"
28 #include "SDL_x11opengl.h"
29 
30 /* EGL implementation of SDL OpenGL support */
31 
32 int
33 X11_GLES_LoadLibrary(_THIS, const char *path)
34 {
36 
37  /* If the profile requested is not GL ES, switch over to X11_GL functions */
40  #if SDL_VIDEO_OPENGL_GLX
41  X11_GLES_UnloadLibrary(_this);
42  _this->GL_LoadLibrary = X11_GL_LoadLibrary;
43  _this->GL_GetProcAddress = X11_GL_GetProcAddress;
44  _this->GL_UnloadLibrary = X11_GL_UnloadLibrary;
45  _this->GL_CreateContext = X11_GL_CreateContext;
46  _this->GL_MakeCurrent = X11_GL_MakeCurrent;
47  _this->GL_SetSwapInterval = X11_GL_SetSwapInterval;
48  _this->GL_GetSwapInterval = X11_GL_GetSwapInterval;
49  _this->GL_SwapWindow = X11_GL_SwapWindow;
50  _this->GL_DeleteContext = X11_GL_DeleteContext;
51  return X11_GL_LoadLibrary(_this, path);
52  #else
53  return SDL_SetError("SDL not configured with OpenGL/GLX support");
54  #endif
55  }
56 
57  return SDL_EGL_LoadLibrary(_this, path, (NativeDisplayType) data->display, 0);
58 }
59 
60 XVisualInfo *
61 X11_GLES_GetVisual(_THIS, Display * display, int screen)
62 {
63 
64  XVisualInfo *egl_visualinfo = NULL;
65  EGLint visual_id;
66  XVisualInfo vi_in;
67  int out_count;
68 
69  if (!_this->egl_data) {
70  /* The EGL library wasn't loaded, SDL_GetError() should have info */
71  return NULL;
72  }
73 
74  if (_this->egl_data->eglGetConfigAttrib(_this->egl_data->egl_display,
75  _this->egl_data->egl_config,
77  &visual_id) == EGL_FALSE || !visual_id) {
78  /* Use the default visual when all else fails */
79  vi_in.screen = screen;
80  egl_visualinfo = X11_XGetVisualInfo(display,
81  VisualScreenMask,
82  &vi_in, &out_count);
83  } else {
84  vi_in.screen = screen;
85  vi_in.visualid = visual_id;
86  egl_visualinfo = X11_XGetVisualInfo(display, VisualScreenMask | VisualIDMask, &vi_in, &out_count);
87  }
88 
89  return egl_visualinfo;
90 }
91 
93 X11_GLES_CreateContext(_THIS, SDL_Window * window)
94 {
96  SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
97  Display *display = data->videodata->display;
98 
99  X11_XSync(display, False);
100  context = SDL_EGL_CreateContext(_this, data->egl_surface);
101  X11_XSync(display, False);
102 
103  return context;
104 }
105 
106 SDL_EGL_SwapWindow_impl(X11)
107 SDL_EGL_MakeCurrent_impl(X11)
108 
109 #endif /* SDL_VIDEO_DRIVER_X11 && SDL_VIDEO_OPENGL_EGL */
110 
111 /* vi: set ts=4 sw=4 expandtab: */
screen
SDL_Renderer * screen
Definition: testgamecontroller.c:64
SDL_VideoDevice::driverdata
void * driverdata
Definition: SDL_sysvideo.h:389
SDL_x11video.h
if
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 skip1(dst_w_bpp<=(lowbit *8)) &&((lowbit *8)<(pixblock_size *dst_w_bpp)) .if lowbit< 16 tst DST_R
Definition: pixman-arm-neon-asm.h:469
NULL
#define NULL
Definition: begin_code.h:167
SDL_x11opengl.h
SDL_WindowData
Definition: SDL_androidwindow.h:38
SDL_VideoDevice::profile_mask
int profile_mask
Definition: SDL_sysvideo.h:354
path
GLsizei const GLchar *const * path
Definition: SDL_opengl_glext.h:3733
EGL_NATIVE_VISUAL_ID
#define EGL_NATIVE_VISUAL_ID
Definition: egl.h:93
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:74
SDL_VideoDevice::gl_config
struct SDL_VideoDevice::@255 gl_config
SDL_GetHintBoolean
#define SDL_GetHintBoolean
Definition: SDL_dynapi_overrides.h:608
SDL_FALSE
@ SDL_FALSE
Definition: SDL_stdinc.h:163
context
static screen_context_t context
Definition: video.c:25
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:121
NativeDisplayType
EGLNativeDisplayType NativeDisplayType
Definition: eglplatform.h:110
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
SDL_GL_CONTEXT_PROFILE_ES
@ SDL_GL_CONTEXT_PROFILE_ES
Definition: SDL_video.h:232
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
SDL_x11opengles.h
SDL_HINT_VIDEO_X11_FORCE_EGL
#define SDL_HINT_VIDEO_X11_FORCE_EGL
A variable controlling whether X11 should use GLX or EGL by default.
Definition: SDL_hints.h:256
SDL_VideoData::display
struct wl_display * display
Definition: SDL_waylandvideo.h:50
SDL_VideoDevice::GL_SetSwapInterval
int(* GL_SetSwapInterval)(_THIS, int interval)
Definition: SDL_sysvideo.h:262
SDL_GLContext
void * SDL_GLContext
An opaque handle to an OpenGL context.
Definition: SDL_video.h:192
EGLint
khronos_int32_t EGLint
Definition: eglplatform.h:122
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:30
SDL_VideoDevice::GL_MakeCurrent
int(* GL_MakeCurrent)(_THIS, SDL_Window *window, SDL_GLContext context)
Definition: SDL_sysvideo.h:260
SDL_VideoDevice::GL_LoadLibrary
int(* GL_LoadLibrary)(_THIS, const char *path)
Definition: SDL_sysvideo.h:256
SDL_VideoDevice::GL_UnloadLibrary
void(* GL_UnloadLibrary)(_THIS)
Definition: SDL_sysvideo.h:258
SDL_VideoDevice::GL_CreateContext
SDL_GLContext(* GL_CreateContext)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:259
SDL_hints.h
SDL_VideoDevice::GL_GetSwapInterval
int(* GL_GetSwapInterval)(_THIS)
Definition: SDL_sysvideo.h:263
SDL_VideoDevice::GL_SwapWindow
int(* GL_SwapWindow)(_THIS, SDL_Window *window)
Definition: SDL_sysvideo.h:264
SDL_WindowData::videodata
struct SDL_VideoData * videodata
Definition: SDL_cocoawindow.h:121
SDL_VideoDevice::GL_GetProcAddress
void *(* GL_GetProcAddress)(_THIS, const char *proc)
Definition: SDL_sysvideo.h:257
SDL_VideoDevice::GL_DeleteContext
void(* GL_DeleteContext)(_THIS, SDL_GLContext context)
Definition: SDL_sysvideo.h:265
EGL_FALSE
#define EGL_FALSE
Definition: egl.h:84
SDL_VideoData
Definition: SDL_androidvideo.h:36