SDL 2.0
SDL_waylandopengles.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_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
35
36/* EGL implementation of SDL OpenGL ES support */
37
38int
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
62int
64{
65 SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
66 struct wl_region *region;
67
68 if (SDL_EGL_SwapBuffers(_this, data->egl_surface) < 0) {
69 return -1;
70 }
71
72 // Wayland-EGL forbids drawing calls in-between SwapBuffers and wl_egl_window_resize
73 if (data->resize.pending) {
74 if (data->scale_factor != data->resize.scale_factor) {
75 window->w = 0;
76 window->h = 0;
77 }
78 SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, data->resize.width, data->resize.height);
79 window->w = data->resize.width;
80 window->h = data->resize.height;
81 data->scale_factor = data->resize.scale_factor;
82 wl_surface_set_buffer_scale(data->surface, data->scale_factor);
83 WAYLAND_wl_egl_window_resize(data->egl_window, window->w * data->scale_factor, window->h * data->scale_factor, 0, 0);
84
85 if (data->resize.configure) {
86 if (data->waylandData->shell.xdg) {
87 xdg_surface_ack_configure(data->shell_surface.xdg.surface, data->resize.serial);
88 } else if (data->waylandData->shell.zxdg) {
89 zxdg_surface_v6_ack_configure(data->shell_surface.zxdg.surface, data->resize.serial);
90 }
91 data->resize.configure = SDL_FALSE;
92 }
93
94 region = wl_compositor_create_region(data->waylandData->compositor);
95 wl_region_add(region, 0, 0, window->w, window->h);
96 wl_surface_set_opaque_region(data->surface, region);
97 wl_region_destroy(region);
98
99 data->resize.pending = SDL_FALSE;
100 }
101
102 WAYLAND_wl_display_flush( data->waylandData->display );
103
104 return 0;
105}
106
107int
109{
110 int ret;
111
112 if (window && context) {
113 ret = SDL_EGL_MakeCurrent(_this, ((SDL_WindowData *) window->driverdata)->egl_surface, context);
114 }
115 else {
116 ret = SDL_EGL_MakeCurrent(_this, NULL, NULL);
117 }
118
119 WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );
120
121 return ret;
122}
123
124void
126{
128 if (window->driverdata) {
129 data = (SDL_WindowData *) window->driverdata;
130
131 if (w) {
132 *w = window->w * data->scale_factor;
133 }
134
135 if (h) {
136 *h = window->h * data->scale_factor;
137 }
138 }
139}
140
141void
143{
144 SDL_EGL_DeleteContext(_this, context);
145 WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );
146}
147
148#endif /* SDL_VIDEO_DRIVER_WAYLAND && SDL_VIDEO_OPENGL_EGL */
149
150/* vi: set ts=4 sw=4 expandtab: */
#define _THIS
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
GLsizei const GLchar *const * path
GLfloat GLfloat GLfloat GLfloat h
GLubyte GLubyte GLubyte GLubyte w
@ SDL_FALSE
Definition: SDL_stdinc.h:163
static SDL_VideoDevice * _this
Definition: SDL_video.c:118
void * SDL_GLContext
An opaque handle to an OpenGL context.
Definition: SDL_video.h:193
@ SDL_WINDOWEVENT_RESIZED
Definition: SDL_video.h:155
void Wayland_PumpEvents(_THIS)
int Wayland_GLES_SwapWindow(_THIS, SDL_Window *window)
int Wayland_GLES_LoadLibrary(_THIS, const char *path)
int Wayland_GLES_MakeCurrent(_THIS, SDL_Window *window, SDL_GLContext context)
SDL_GLContext Wayland_GLES_CreateContext(_THIS, SDL_Window *window)
void Wayland_GLES_GetDrawableSize(_THIS, SDL_Window *window, int *w, int *h)
void Wayland_GLES_DeleteContext(_THIS, SDL_GLContext context)
int SDL_SendWindowEvent(SDL_Window *window, Uint8 windowevent, int data1, int data2)
#define NULL
Definition: begin_code.h:167
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
EGLNativeDisplayType NativeDisplayType
Definition: eglplatform.h:110
static struct wl_region * wl_compositor_create_region(struct wl_compositor *wl_compositor)
static void wl_region_add(struct wl_region *wl_region, int32_t x, int32_t y, int32_t width, int32_t height)
static void wl_region_destroy(struct wl_region *wl_region)
static void wl_surface_set_opaque_region(struct wl_surface *wl_surface, struct wl_region *region)
static void wl_surface_set_buffer_scale(struct wl_surface *wl_surface, int32_t scale)
static void xdg_surface_ack_configure(struct xdg_surface *xdg_surface, uint32_t serial)
static void zxdg_surface_v6_ack_configure(struct zxdg_surface_v6 *zxdg_surface_v6, uint32_t serial)
The type used to identify a window.
Definition: SDL_sysvideo.h:74
static screen_context_t context
Definition: video.c:25