fdo-mirrors/cairo
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/cairo/cairo.git synced 2026-05-04 09:28:03 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

egl: Implement acquire and release for EGL backend

Browse source
This commit is contained in:
Kristian Høgsberg 2010-06-17 17:38:00 -04:00
parent 7ab9ce1b91
commit 67e84d6123
1 changed files with 37 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

46
src/cairo-egl-context.c
View file

@ -47,6 +47,11 @@ typedef struct _cairo_egl_context {
EGLDisplay display;
EGLContext context;
EGLContext prev_context;
EGLSurface prev_draw_surface;
EGLSurface prev_read_surface;
EGLSurface dummy_surface;
} cairo_egl_context_t;
typedef struct _cairo_egl_surface {
@ -55,6 +60,29 @@ typedef struct _cairo_egl_surface {
EGLSurface egl;
} cairo_egl_surface_t;
static void
_egl_acquire (void *abstract_ctx)
{
cairo_egl_context_t *ctx = abstract_ctx;
ctx->prev_context = eglGetCurrentContext ();
ctx->prev_draw_surface = eglGetCurrentSurface (EGL_DRAW);
ctx->prev_read_surface = eglGetCurrentSurface (EGL_READ);
eglMakeCurrent (ctx->display,
ctx->dummy_surface, ctx->dummy_surface, ctx->context);
}
static void
_egl_release (void *abstract_ctx)
{
cairo_egl_context_t *ctx = abstract_ctx;
eglMakeCurrent (ctx->display,
EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
}
static void
_egl_make_current (void *abstract_ctx,
cairo_gl_surface_t *abstract_surface)
@ -80,7 +108,9 @@ _egl_destroy (void *abstract_ctx)
{
cairo_egl_context_t *ctx = abstract_ctx;
eglMakeCurrent (ctx->display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglMakeCurrent (ctx->display,
EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroySurface (ctx->display, ctx->dummy_surface);
}
cairo_device_t *
@ -93,7 +123,6 @@ cairo_egl_device_create (EGLDisplay dpy, EGLContext egl)
EGL_HEIGHT, 1,
EGL_NONE,
};
EGLSurface surface;
EGLConfig *configs;
EGLint numConfigs;
@ -104,8 +133,8 @@ cairo_egl_device_create (EGLDisplay dpy, EGLContext egl)
ctx->display = dpy;
ctx->context = egl;
ctx->base.acquire = NULL; /* FIXME */
ctx->base.release = NULL; /* FIXME */
ctx->base.acquire = _egl_acquire;
ctx->base.release = _egl_release;
ctx->base.make_current = _egl_make_current;
ctx->base.swap_buffers = _egl_swap_buffers;
ctx->base.destroy = _egl_destroy;
@ -118,27 +147,26 @@ cairo_egl_device_create (EGLDisplay dpy, EGLContext egl)
return _cairo_gl_context_create_in_error (CAIRO_STATUS_NO_MEMORY);
}
eglGetConfigs (dpy, configs, numConfigs, &numConfigs);
surface = eglCreatePbufferSurface (dpy, configs[0], attribs);
ctx->dummy_surface = eglCreatePbufferSurface (dpy, configs[0], attribs);
free (configs);
if (surface == NULL) {
if (ctx->dummy_surface == NULL) {
free (ctx);
return _cairo_gl_context_create_in_error (CAIRO_STATUS_NO_MEMORY);
}
if (! eglMakeCurrent (dpy, surface, surface, egl)) {
if (!eglMakeCurrent (dpy, ctx->dummy_surface, ctx->dummy_surface, egl)) {
free (ctx);
return _cairo_gl_context_create_in_error (CAIRO_STATUS_NO_MEMORY);
}
status = _cairo_gl_context_init (&ctx->base);
if (unlikely (status)) {
eglDestroySurface (dpy, surface);
eglDestroySurface (dpy, ctx->dummy_surface);
free (ctx);
return _cairo_gl_context_create_in_error (status);
}
eglDestroySurface (dpy, surface);
eglMakeCurrent (dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
return &ctx->base.base;