SDL  2.0
SDL_waylandopengles.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_WAYLAND && SDL_VIDEO_OPENGL_EGL
24 
25 #include "../SDL_sysvideo.h"
26 #include "../../events/SDL_windowevents_c.h"
27 #include "SDL_waylandvideo.h"
28 #include "SDL_waylandopengles.h"
29 #include "SDL_waylandwindow.h"
30 #include "SDL_waylandevents_c.h"
31 #include "SDL_waylanddyn.h"
32 
33 #include "xdg-shell-client-protocol.h"
34 #include "xdg-shell-unstable-v6-client-protocol.h"
35 
36 /* EGL implementation of SDL OpenGL ES support */
37 
38 int
39 Wayland_GLES_LoadLibrary(_THIS, const char *path) {
40  int ret;
42 
43  ret = SDL_EGL_LoadLibrary(_this, path, (NativeDisplayType) data->display, 0);
44 
46  WAYLAND_wl_display_flush(data->display);
47 
48  return ret;
49 }
50 
51 
54 {
56  context = SDL_EGL_CreateContext(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);
57  WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );
58 
59  return context;
60 }
61 
62 int
64 {
65  SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
66 
67  if (SDL_EGL_SwapBuffers(_this, data->egl_surface) < 0) {
68  return -1;
69  }
70 
71  // Wayland-EGL forbids drawing calls in-between SwapBuffers and wl_egl_window_resize
73 
74  WAYLAND_wl_display_flush( data->waylandData->display );
75 
76  return 0;
77 }
78 
79 int
81 {
82  int ret;
83 
84  if (window && context) {
85  ret = SDL_EGL_MakeCurrent(_this, ((SDL_WindowData *) window->driverdata)->egl_surface, context);
86  }
87  else {
88  ret = SDL_EGL_MakeCurrent(_this, NULL, NULL);
89  }
90 
91  WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );
92 
93  return ret;
94 }
95 
96 void
98 {
100  if (window->driverdata) {
101  data = (SDL_WindowData *) window->driverdata;
102 
103  if (w) {
104  *w = window->w * data->scale_factor;
105  }
106 
107  if (h) {
108  *h = window->h * data->scale_factor;
109  }
110  }
111 }
112 
113 void
115 {
116  SDL_EGL_DeleteContext(_this, context);
117  WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );
118 }
119 
120 #endif /* SDL_VIDEO_DRIVER_WAYLAND && SDL_VIDEO_OPENGL_EGL */
121 
122 /* vi: set ts=4 sw=4 expandtab: */
SDL_waylandvideo.h
SDL_waylandevents_c.h
SDL_VideoDevice::driverdata
void * driverdata
Definition: SDL_sysvideo.h:389
Wayland_GLES_MakeCurrent
int Wayland_GLES_MakeCurrent(_THIS, SDL_Window *window, SDL_GLContext context)
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
Wayland_GLES_LoadLibrary
int Wayland_GLES_LoadLibrary(_THIS, const char *path)
NULL
#define NULL
Definition: begin_code.h:167
Wayland_GLES_GetDrawableSize
void Wayland_GLES_GetDrawableSize(_THIS, SDL_Window *window, int *w, int *h)
Wayland_GLES_CreateContext
SDL_GLContext Wayland_GLES_CreateContext(_THIS, SDL_Window *window)
SDL_WindowData
Definition: SDL_androidwindow.h:39
SDL_waylandopengles.h
Wayland_GLES_SwapWindow
int Wayland_GLES_SwapWindow(_THIS, SDL_Window *window)
Wayland_HandlePendingResize
void Wayland_HandlePendingResize(SDL_Window *window)
path
GLsizei const GLchar *const * path
Definition: SDL_opengl_glext.h:3733
Wayland_PumpEvents
void Wayland_PumpEvents(_THIS)
h
GLfloat GLfloat GLfloat GLfloat h
Definition: SDL_opengl_glext.h:1949
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:75
Wayland_GLES_DeleteContext
void Wayland_GLES_DeleteContext(_THIS, SDL_GLContext context)
SDL_GLContext
void * SDL_GLContext
An opaque handle to an OpenGL context.
Definition: SDL_video.h:192
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_waylandwindow.h
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
SDL_waylanddyn.h
SDL_VideoData
Definition: SDL_androidvideo.h:37
w
GLubyte GLubyte GLubyte GLubyte w
Definition: SDL_opengl_glext.h:734