diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.sources | 1 | ||||
| -rw-r--r-- | src/Makefile.win32.features | 8 | ||||
| -rw-r--r-- | src/cairo-egl-context.c | 168 | ||||
| -rw-r--r-- | src/cairo-gl.h | 14 |
4 files changed, 191 insertions, 0 deletions
diff --git a/src/Makefile.sources b/src/Makefile.sources index 4ef397ca8..e92ec8b9d 100644 --- a/src/Makefile.sources +++ b/src/Makefile.sources @@ -315,6 +315,7 @@ cairo_gl_headers = cairo-gl.h cairo_gl_private = cairo-gl-private.h cairo_gl_sources = cairo-gl-surface.c cairo-gl-glyphs.c cairo-gl-shaders.c cairo_glx_sources += cairo-glx-context.c +cairo_egl_sources += cairo-egl-context.c cairo_directfb_headers = cairo-directfb.h cairo_directfb_sources = cairo-directfb-surface.c diff --git a/src/Makefile.win32.features b/src/Makefile.win32.features index 42fb6964b..05efd047e 100644 --- a/src/Makefile.win32.features +++ b/src/Makefile.win32.features @@ -273,6 +273,14 @@ ifeq ($(CAIRO_HAS_PNG_FUNCTIONS),1) enabled_cairo_pkgconf += cairo-png.pc endif +supported_cairo_headers += $(cairo_glew_headers) +all_cairo_headers += $(cairo_glew_headers) +all_cairo_private += $(cairo_glew_private) +all_cairo_sources += $(cairo_glew_sources) +enabled_cairo_headers += $(cairo_glew_headers) +enabled_cairo_private += $(cairo_glew_private) +enabled_cairo_sources += $(cairo_glew_sources) + unsupported_cairo_headers += $(cairo_gl_headers) all_cairo_headers += $(cairo_gl_headers) all_cairo_private += $(cairo_gl_private) diff --git a/src/cairo-egl-context.c b/src/cairo-egl-context.c new file mode 100644 index 000000000..7093ea032 --- /dev/null +++ b/src/cairo-egl-context.c @@ -0,0 +1,168 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Eric Anholt + * Copyright © 2009 Chris Wilson + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl Worth <cworth@cworth.org> + * Chris Wilson <chris@chris-wilson.co.uk> + */ + +#include "cairoint.h" + +#include "cairo-gl-private.h" + +#include "cairo-error-private.h" + +typedef struct _cairo_egl_context { + cairo_gl_context_t base; + + EGLDisplay display; + EGLContext context; +} cairo_egl_context_t; + +typedef struct _cairo_egl_surface { + cairo_gl_surface_t base; + + EGLSurface egl; +} cairo_egl_surface_t; + +static void +_egl_make_current (void *abstract_ctx, + cairo_gl_surface_t *abstract_surface) +{ + cairo_egl_context_t *ctx = abstract_ctx; + cairo_egl_surface_t *surface = (cairo_egl_surface_t *) abstract_surface; + + eglMakeCurrent(ctx->display, surface->egl, surface->egl, ctx->context); +} + +static void +_egl_swap_buffers (void *abstract_ctx, + cairo_gl_surface_t *abstract_surface) +{ + cairo_egl_context_t *ctx = abstract_ctx; + cairo_egl_surface_t *surface = (cairo_egl_surface_t *) abstract_surface; + + eglSwapBuffers (ctx->display, surface->egl); +} + +static void +_egl_destroy (void *abstract_ctx) +{ + cairo_egl_context_t *ctx = abstract_ctx; + + eglMakeCurrent (ctx->display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); +} + +cairo_device_t * +cairo_egl_device_create (EGLDisplay dpy, EGLContext egl) +{ + cairo_egl_context_t *ctx; + cairo_status_t status; + int attribs[] = { + EGL_WIDTH, 1, + EGL_HEIGHT, 1, + EGL_NONE, + }; + EGLSurface surface; + EGLConfig *configs; + EGLint numConfigs; + + ctx = calloc (1, sizeof (cairo_egl_context_t)); + if (unlikely (ctx == NULL)) + return _cairo_gl_context_create_in_error (CAIRO_STATUS_NO_MEMORY); + + ctx->display = dpy; + ctx->context = egl; + + ctx->base.make_current = _egl_make_current; + ctx->base.swap_buffers = _egl_swap_buffers; + ctx->base.destroy = _egl_destroy; + + /* dummy surface, meh. */ + eglGetConfigs (dpy, NULL, 0, &numConfigs); + configs = malloc (sizeof(*configs) *numConfigs); + if (configs == NULL) { + free (ctx); + return _cairo_gl_context_create_in_error (CAIRO_STATUS_NO_MEMORY); + } + eglGetConfigs (dpy, configs, numConfigs, &numConfigs); + surface = eglCreatePbufferSurface (dpy, configs[0], attribs); + free (configs); + + if (surface == NULL) { + free (ctx); + return _cairo_gl_context_create_in_error (CAIRO_STATUS_NO_MEMORY); + } + + if (! eglMakeCurrent (dpy, surface, 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); + 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; +} + +cairo_surface_t * +cairo_gl_surface_create_for_egl (cairo_device_t *device, + EGLSurface egl, + int width, + int height) +{ + cairo_egl_surface_t *surface; + + if (unlikely (device->status)) + return _cairo_surface_create_in_error (device->status); + + if (device->backend->type != CAIRO_DEVICE_TYPE_GL) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + + surface = calloc (1, sizeof (cairo_egl_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_gl_surface_init (device, &surface->base, + CAIRO_CONTENT_COLOR_ALPHA, width, height); + surface->egl = egl; + + return &surface->base.base; +} diff --git a/src/cairo-gl.h b/src/cairo-gl.h index 9df9bb7e1..2b73f3f43 100644 --- a/src/cairo-gl.h +++ b/src/cairo-gl.h @@ -72,6 +72,20 @@ cairo_gl_surface_create_for_window (cairo_device_t *device, int width, int height); #endif +#if CAIRO_HAS_EGL_FUNCTIONS +#include <EGL/egl.h> + +cairo_public cairo_device_t * +cairo_egl_device_create (EGLDisplay dpy, EGLContext egl); + +cairo_public cairo_surface_t * +cairo_gl_surface_create_for_egl (cairo_device_t *device, + EGLSurface egl, + int width, + int height); + +#endif + CAIRO_END_DECLS #else /* CAIRO_HAS_GL_SURFACE */ |