diff options
| -rw-r--r-- | AUTHORS | 3 | ||||
| -rw-r--r-- | NEWS | 3 | ||||
| -rw-r--r-- | boilerplate/Makefile.sources | 1 | ||||
| -rw-r--r-- | boilerplate/Makefile.win32.features | 30 | ||||
| -rw-r--r-- | boilerplate/cairo-boilerplate-vg.c | 350 | ||||
| -rw-r--r-- | build/Makefile.win32.features | 3 | ||||
| -rw-r--r-- | build/Makefile.win32.features-h | 9 | ||||
| -rw-r--r-- | build/configure.ac.features | 3 | ||||
| -rw-r--r-- | configure.ac | 43 | ||||
| -rw-r--r-- | src/Makefile.sources | 3 | ||||
| -rw-r--r-- | src/Makefile.win32.features | 42 | ||||
| -rw-r--r-- | src/cairo-vg-surface.c | 1938 | ||||
| -rw-r--r-- | src/cairo-vg.h | 103 | ||||
| -rw-r--r-- | src/cairo.h | 4 | ||||
| -rw-r--r-- | test/cairo-test.c | 3 | ||||
| -rw-r--r-- | test/get-clip.c | 1 | ||||
| -rw-r--r-- | util/cairo-trace/trace.c | 70 |
17 files changed, 2606 insertions, 3 deletions
@@ -43,7 +43,7 @@ Amaury Jacquot <sxpert@esitcom.org> Documentation review, appplication testing Adrian Johnson <ajohnson@redneon.com> PDF backend improvement Michael Johnson <ahze@ahze.net> Bug fix for pre-C99 compilers Jonathon Jongsma <jonathon.jongsma@gmail.com> Fix documentation typos -Øyvind KolÃ¥s <pippin@freedesktop.org> Bug fixes. Better default values. +Øyvind KolÃ¥s <pippin@freedesktop.org> OpenVG backend, Bug fixes. Better default values. Martin Kretzschmar <martink@gnome.org> Arithmetic fix for 64-bit architectures Mathieu Lacage <Mathieu.Lacage@sophia.inria.fr> several bug/typo fixes Dominic Lachowicz <domlachowicz@gmail.com> PDF conformance fix, fix image surface to zero out contents @@ -89,6 +89,7 @@ Travis Spencer <tspencer@cs.pdx.edu> XCB backend fix Bill Spitzak <spitzak@d2.com> Build fix to find Xrender.h without xrender.pc Zhe Su <james.su@gmail.com> Add support for fontconfig's embeddedbitmap option Owen Taylor <otaylor@redhat.com> Font rewrite, documentation, win32 backend +Pierre Tardy <tardyp@gmail.com> EGL support and testing, OpenVG backend Karl Tomlinson <karlt+@karlt.net> Optimisation and obscure bug fixes (mozilla) Alp Toker <alp@atoker.com> Fix several code/comment typos Malcolm Tredinnick <malcolm@commsecure.com.au> Documentation fixes @@ -24,6 +24,9 @@ New experimental backends: QT + OpenVG - The initial work was done by Øyvind KolÃ¥s, and made ready for + inclusion by Pierre Tardy. + Snapshot 1.9.2 (2009-06-12) =========================== diff --git a/boilerplate/Makefile.sources b/boilerplate/Makefile.sources index f81781fbf..b40df4ce4 100644 --- a/boilerplate/Makefile.sources +++ b/boilerplate/Makefile.sources @@ -40,3 +40,4 @@ cairo_boilerplate_win32_sources = cairo-boilerplate-win32.c cairo-boilerplate-wi cairo_boilerplate_xcb_sources = cairo-boilerplate-xcb.c cairo_boilerplate_xlib_headers = cairo-boilerplate-xlib.h cairo_boilerplate_xlib_sources = cairo-boilerplate-xlib.c +cairo_boilerplate_vg_sources = cairo-boilerplate-vg.c diff --git a/boilerplate/Makefile.win32.features b/boilerplate/Makefile.win32.features index 33eaf5fd9..e691118be 100644 --- a/boilerplate/Makefile.win32.features +++ b/boilerplate/Makefile.win32.features @@ -159,6 +159,36 @@ enabled_cairo_boilerplate_private += $(cairo_boilerplate_directfb_private) enabled_cairo_boilerplate_sources += $(cairo_boilerplate_directfb_sources) endif +unsupported_cairo_boilerplate_headers += $(cairo_boilerplate_vg_headers) +all_cairo_boilerplate_headers += $(cairo_boilerplate_vg_headers) +all_cairo_boilerplate_private += $(cairo_boilerplate_vg_private) +all_cairo_boilerplate_sources += $(cairo_boilerplate_vg_sources) +ifeq ($(CAIRO_HAS_VG_SURFACE),1) +enabled_cairo_boilerplate_headers += $(cairo_boilerplate_vg_headers) +enabled_cairo_boilerplate_private += $(cairo_boilerplate_vg_private) +enabled_cairo_boilerplate_sources += $(cairo_boilerplate_vg_sources) +endif + +supported_cairo_boilerplate_headers += $(cairo_boilerplate_egl_headers) +all_cairo_boilerplate_headers += $(cairo_boilerplate_egl_headers) +all_cairo_boilerplate_private += $(cairo_boilerplate_egl_private) +all_cairo_boilerplate_sources += $(cairo_boilerplate_egl_sources) +ifeq ($(CAIRO_HAS_EGL_FUNCTIONS),1) +enabled_cairo_boilerplate_headers += $(cairo_boilerplate_egl_headers) +enabled_cairo_boilerplate_private += $(cairo_boilerplate_egl_private) +enabled_cairo_boilerplate_sources += $(cairo_boilerplate_egl_sources) +endif + +supported_cairo_boilerplate_headers += $(cairo_boilerplate_glx_headers) +all_cairo_boilerplate_headers += $(cairo_boilerplate_glx_headers) +all_cairo_boilerplate_private += $(cairo_boilerplate_glx_private) +all_cairo_boilerplate_sources += $(cairo_boilerplate_glx_sources) +ifeq ($(CAIRO_HAS_GLX_FUNCTIONS),1) +enabled_cairo_boilerplate_headers += $(cairo_boilerplate_glx_headers) +enabled_cairo_boilerplate_private += $(cairo_boilerplate_glx_private) +enabled_cairo_boilerplate_sources += $(cairo_boilerplate_glx_sources) +endif + unsupported_cairo_boilerplate_headers += $(cairo_boilerplate_script_headers) all_cairo_boilerplate_headers += $(cairo_boilerplate_script_headers) all_cairo_boilerplate_private += $(cairo_boilerplate_script_private) diff --git a/boilerplate/cairo-boilerplate-vg.c b/boilerplate/cairo-boilerplate-vg.c new file mode 100644 index 000000000..224a2d538 --- /dev/null +++ b/boilerplate/cairo-boilerplate-vg.c @@ -0,0 +1,350 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * 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 Chris Wilson. + */ + +#include "cairo-boilerplate-private.h" + +#include <cairo-vg.h> + + /* XXX Not sure how to handle library specific context initialization */ +//#define USE_SHIVA +//#define USE_AMANITH + +#if CAIRO_HAS_GLX_FUNCTIONS + +#include <X11/Xlib.h> +#include <GL/glx.h> + +typedef struct _vg_closure { + Display *dpy; + int screen; + Window win; + + GLXContext ctx; + cairo_surface_t *surface; +} vg_closure_glx_t; + +static void +_cairo_boilerplate_vg_cleanup_glx (void *closure) +{ + vg_closure_glx_t *vgc = closure; + +#ifdef USE_AMANITH + vgDestroyContextAM (); +#endif +#ifdef USE_SHIVA + vgDestroyContextSH (); +#endif + + glXDestroyContext (vgc->dpy, vgc->ctx); + XDestroyWindow (vgc->dpy, vgc->win); + XCloseDisplay (vgc->dpy); + free (vgc); +} + +static cairo_surface_t * +_cairo_boilerplate_vg_create_surface_glx (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + int id, + void **closure) +{ + int rgba_attribs[] = { + GLX_RGBA, + GLX_RED_SIZE, 1, + GLX_GREEN_SIZE, 1, + GLX_BLUE_SIZE, 1, + GLX_ALPHA_SIZE, 1, + GLX_DOUBLEBUFFER, + None + }; + int rgb_attribs[] = { + GLX_RGBA, + GLX_RED_SIZE, 1, + GLX_GREEN_SIZE, 1, + GLX_BLUE_SIZE, 1, + GLX_DOUBLEBUFFER, + None + }; + XVisualInfo *vi; + Display *dpy; + Colormap cmap; + XSetWindowAttributes swa; + cairo_surface_t *surface; + cairo_vg_context_t *context; + vg_closure_glx_t *vgc; + + vgc = malloc (sizeof (vg_closure_glx_t)); + *closure = vgc; + + if (width == 0) + width = 1; + if (height == 0) + height = 1; + + dpy = XOpenDisplay (NULL); + vgc->dpy = dpy; + if (vgc->dpy == NULL) { + fprintf (stderr, "Failed to open display: %s\n", XDisplayName(0)); + free (vgc); + return NULL; + } + + if (content == CAIRO_CONTENT_COLOR) + vi = glXChooseVisual (dpy, DefaultScreen (dpy), rgb_attribs); + else + vi = glXChooseVisual (dpy, DefaultScreen (dpy), rgba_attribs); + + if (vi == NULL) { + fprintf (stderr, "Failed to create RGB, double-buffered visual\n"); + XCloseDisplay (dpy); + free (vgc); + return NULL; + } + + vgc->ctx = glXCreateContext (dpy, vi, NULL, True); + cmap = XCreateColormap (dpy, + RootWindow (dpy, vi->screen), + vi->visual, + AllocNone); + swa.colormap = cmap; + swa.border_pixel = 0; + vgc->win = XCreateWindow (dpy, RootWindow (dpy, vi->screen), + -1, -1, 1, 1, 0, + vi->depth, + InputOutput, + vi->visual, + CWBorderPixel | CWColormap, &swa); + XFreeColormap (dpy, cmap); + XFree (vi); + + XMapWindow (dpy, vgc->win); + + /* we need an active context to initialise VG */ + glXMakeContextCurrent (dpy, vgc->win, vgc->win, vgc->ctx); + +#ifdef USE_AMANITH + vgInitContextAM (width, height, VG_FALSE, VG_TRUE); +#endif +#ifdef USE_SHIVA + vgCreateContextSH (width, height); +#endif + + context = cairo_vg_context_create_for_glx (dpy, vgc->ctx); + vgc->surface = cairo_vg_surface_create (context, content, width, height); + cairo_vg_context_destroy (context); + + surface = vgc->surface; + if (cairo_surface_status (surface)) + _cairo_boilerplate_vg_cleanup_glx (vgc); + + return surface; +} +#endif + +#if CAIRO_HAS_EGL_FUNCTIONS +typedef struct _vg_closure_egl { + EGLDisplay *dpy; + EGLContext *ctx; + EGLSurface *dummy; +} vg_closure_egl_t; + +static void +_cairo_boilerplate_vg_cleanup_egl (void *closure) +{ + vg_closure_egl_t *vgc = closure; + +#ifdef USE_AMANITH + vgDestroyContextAM (); +#endif +#ifdef USE_SHIVA + vgDestroyContextSH (); +#endif + + eglDestroyContext (vgc->dpy, vgc->ctx); + eglDestroySurface (vgc->dpy, vgc->dummy); + eglDestroyDisplay (vgc->dpy); + free (vgc); +} + +static cairo_surface_t * +_cairo_boilerplate_vg_create_surface_egl (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + int id, + void **closure) +{ + int rgba_attribs[] = { + EGL_RED_SIZE, 8, + EGL_GREEN_SIZE, 8, + EGL_BLUE_SIZE, 8, + EGL_ALPHA_SIZE, 8, + EGL_SURFACE_TYPE, EGL_PBUFFER_BIT, + ELG_RENDERABLE_TYPE, EGL_OPENVG_BIT, + None + }; + int rgb_attribs[] = { + EGL_RED_SIZE, 8, + EGL_GREEN_SIZE, 8, + EGL_BLUE_SIZE, 8, + EGL_ALPHA_SIZE, 8, + EGL_VG_ALPHA_FORMAT, VG_ALPHA_FORMAT_PRE, + EGL_SURFACE_TYPE, EGL_PBUFFER_BIT, + ELG_RENDERABLE_TYPE, EGL_OPENVG_BIT, + None + }; + int dummy_attribs[] = { + EGL_WIDTH, 8, EGL_HEIGHT, 8, + EGL_NONE + }; + EGLDisplay *dpy; + int major, minor; + EGLConfig *config; + int num_configs; + EGLContext *egl_context; + cairo_vg_context_t *context; + cairo_vg_surface_t *surface; + vg_closure_egl_t *vgc; + + dpy = eglGetDisplay (EGL_DEFAULT_DISPLAY); + + if (! eglInitialize (dpy, &major, &minor)) + return NULL; + + eglBindAPI (EGL_OPENVG_API); + + if (! eglChooseConfig (dpy, + attribs, + content == CAIRO_CONTENT_COLOR_ALPHA ? + rgba_attribs : rgb_attribs, + 1, &num_configs) || + num_configs != 1) + { + return NULL; + } + + egl_context = eglCreateContext (dpy, config, NULL, NULL); + if (egl_context == NULL) + return NULL; + + /* Create a dummy surface in order to enable a context to initialise VG */ + dummy = eglCreatePbufferSurface (dpy, config, dummy_attribs); + if (dummy == NULL) + return NULL; + if (! eglMakeCurrent (dpy, dummy, dummy, egl_context)) + return NULL; + +#ifdef USE_AMANITH + vgInitContextAM (width, height, VG_FALSE, VG_TRUE); +#endif +#ifdef USE_SHIVA + vgCreateContextSH (width, height); +#endif + + vgc = xmalloc (sizeof (vg_closure_egl_t)); + vgc->dpy = dpy; + vgc->ctx = egl_context; + vgc->dummy = dummy; + *closure = vgc; + + context = cairo_vg_context_create_for_egl (vgc->dpy, vgc->ctx); + vgc->surface = cairo_vg_surface_create (context, content, width, height); + cairo_vg_context_destroy (context); + + surface = vgc->surface; + if (cairo_surface_status (surface)) + _cairo_boilerplate_vg_cleanup_egl (vgc); + + return surface; +} +#endif + +static void +_cairo_boilerplate_vg_synchronize (void *closure) +{ + vgFinish (); +} + +static const cairo_boilerplate_target_t targets[] = { +#if CAIRO_HAS_GLX_FUNCTIONS + { + "vg-glx", "vg", NULL, NULL, + CAIRO_SURFACE_TYPE_VG, CAIRO_CONTENT_COLOR_ALPHA, 1, + _cairo_boilerplate_vg_create_surface_glx, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_vg_cleanup_glx, + _cairo_boilerplate_vg_synchronize + }, + { + "vg-glx", "vg", NULL, NULL, + CAIRO_SURFACE_TYPE_VG, CAIRO_CONTENT_COLOR, 1, + _cairo_boilerplate_vg_create_surface_glx, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_vg_cleanup_glx, + _cairo_boilerplate_vg_synchronize + }, +#endif +#if CAIRO_HAS_EGL_FUNCTIONS + { + "vg-egl", "vg", NULL, NULL, + CAIRO_SURFACE_TYPE_VG, CAIRO_CONTENT_COLOR_ALPHA, 1, + _cairo_boilerplate_vg_create_surface_egl, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_vg_cleanup_egl, + _cairo_boilerplate_vg_synchronize + }, + { + "vg-egl", "vg", NULL, NULL, + CAIRO_SURFACE_TYPE_VG, CAIRO_CONTENT_COLOR, 1, + _cairo_boilerplate_vg_create_surface_egl, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_vg_cleanup_egl, + _cairo_boilerplate_vg_synchronize + }, +#endif +}; +CAIRO_BOILERPLATE (vg, targets) diff --git a/build/Makefile.win32.features b/build/Makefile.win32.features index 3029c50fc..4d42c8b6e 100644 --- a/build/Makefile.win32.features +++ b/build/Makefile.win32.features @@ -14,6 +14,9 @@ CAIRO_HAS_BEOS_SURFACE=0 CAIRO_HAS_PNG_FUNCTIONS=1 CAIRO_HAS_GLITZ_SURFACE=0 CAIRO_HAS_DIRECTFB_SURFACE=0 +CAIRO_HAS_VG_SURFACE=0 +CAIRO_HAS_EGL_FUNCTIONS=0 +CAIRO_HAS_GLX_FUNCTIONS=0 CAIRO_HAS_SCRIPT_SURFACE=0 CAIRO_HAS_FT_FONT=0 CAIRO_HAS_FC_FONT=0 diff --git a/build/Makefile.win32.features-h b/build/Makefile.win32.features-h index fd5f05d87..2dc43bd17 100644 --- a/build/Makefile.win32.features-h +++ b/build/Makefile.win32.features-h @@ -47,6 +47,15 @@ endif ifeq ($(CAIRO_HAS_DIRECTFB_SURFACE),1) @echo "#define CAIRO_HAS_DIRECTFB_SURFACE 1" >> src/cairo-features.h endif +ifeq ($(CAIRO_HAS_VG_SURFACE),1) + @echo "#define CAIRO_HAS_VG_SURFACE 1" >> src/cairo-features.h +endif +ifeq ($(CAIRO_HAS_EGL_FUNCTIONS),1) + @echo "#define CAIRO_HAS_EGL_FUNCTIONS 1" >> src/cairo-features.h +endif +ifeq ($(CAIRO_HAS_GLX_FUNCTIONS),1) + @echo "#define CAIRO_HAS_GLX_FUNCTIONS 1" >> src/cairo-features.h +endif ifeq ($(CAIRO_HAS_SCRIPT_SURFACE),1) @echo "#define CAIRO_HAS_SCRIPT_SURFACE 1" >> src/cairo-features.h endif diff --git a/build/configure.ac.features b/build/configure.ac.features index 3f866801d..e2d3262a2 100644 --- a/build/configure.ac.features +++ b/build/configure.ac.features @@ -377,6 +377,7 @@ AC_DEFUN([CAIRO_REPORT], echo " glitz: $use_glitz" echo " BeOS: $use_beos" echo " DirectFB: $use_directfb" + echo " OpenVG: $use_vg" echo "" echo "The following font backends:" echo " User: yes (always builtin)" @@ -387,6 +388,8 @@ AC_DEFUN([CAIRO_REPORT], echo "" echo "The following functions:" echo " PNG functions: $use_png" + echo " GLX functions: $use_glx" + echo " EGL functions: $use_egl" echo "" echo "And the following internal features:" echo " gtk-doc: $enable_gtk_doc" diff --git a/configure.ac b/configure.ac index de1be8fd5..2d4d5bb6f 100644 --- a/configure.ac +++ b/configure.ac @@ -242,6 +242,49 @@ CAIRO_ENABLE_SURFACE_BACKEND(directfb, directfb, no, [ dnl =========================================================================== +CAIRO_ENABLE_SURFACE_BACKEND(vg, OpenVG, no, [ + dnl There is no pkgconfig for OpenVG; lets do a header check + AC_CHECK_HEADER(VG/openvg.h,, [use_vg="no (OpenVG headers not found)"]) + if test "x$use_vg" = "xyes"; then + vg_NONPKGCONFIG_CFLAGS= + vg_NONPKGCONFIG_LIBS="-lOpenVG" + need_egl_functions=yes + need_glx_functions=yes + fi +]) + +CAIRO_ENABLE_FUNCTIONS(egl, EGL, auto, [ + if test "x$need_egl_functions" = "xyes"; then + AC_CHECK_HEADER(EGL/egl.h,, [use_egl="no (EGL headers not found)"]) + if test "x$use_egl" = "xyes"; then + egl_NONPKGCONFIG_CFLAGS= + egl_NONPKGCONFIG_LIBS= + for lib in EGL egl13 egl12 egl11; do + if test -z "$egl_NONPKGCONFIG_LIBS"; then + AC_CHECK_LIB($lib, eglGetError, egl_NONPKGCONFIG_LIBS="-l$lib") + fi + done + if test -z "$egl_NONPKGCONFIG_LIBS"; then + use_egl="no (EGL library not found)" + fi + fi + else + use_egl="no (not required by any backend)" + fi +]) + +CAIRO_ENABLE_FUNCTIONS(glx, GLX, auto, [ + if test "x$need_glx_functions" = "xyes"; then + AC_CHECK_HEADER(GL/glx.h,, [use_glx="no (GLX headers not found)"]) + glx_NONPKGCONFIG_CFLAGS= + glx_NONPKGCONFIG_LIBS="-lGL" + else + use_glx="no (not required by any backend)" + fi +]) + +dnl =========================================================================== + any2ppm_cs=no CAIRO_ENABLE_SURFACE_BACKEND(script, script, no, [ any2ppm_cs=yes diff --git a/src/Makefile.sources b/src/Makefile.sources index ef4e1c8f5..6bec91edb 100644 --- a/src/Makefile.sources +++ b/src/Makefile.sources @@ -258,3 +258,6 @@ cairo_directfb_sources = cairo-directfb-surface.c cairo_script_headers = cairo-script.h cairo_script_sources = cairo-script-surface.c + +cairo_vg_headers = cairo-vg.h +cairo_vg_sources = cairo-vg-surface.c diff --git a/src/Makefile.win32.features b/src/Makefile.win32.features index 6b989a80d..0de7b885b 100644 --- a/src/Makefile.win32.features +++ b/src/Makefile.win32.features @@ -217,6 +217,48 @@ ifeq ($(CAIRO_HAS_DIRECTFB_SURFACE),1) enabled_cairo_pkgconf += cairo-directfb.pc endif +unsupported_cairo_headers += $(cairo_vg_headers) +all_cairo_headers += $(cairo_vg_headers) +all_cairo_private += $(cairo_vg_private) +all_cairo_sources += $(cairo_vg_sources) +ifeq ($(CAIRO_HAS_VG_SURFACE),1) +enabled_cairo_headers += $(cairo_vg_headers) +enabled_cairo_private += $(cairo_vg_private) +enabled_cairo_sources += $(cairo_vg_sources) +endif +all_cairo_pkgconf += cairo-vg.pc +ifeq ($(CAIRO_HAS_VG_SURFACE),1) +enabled_cairo_pkgconf += cairo-vg.pc +endif + +supported_cairo_headers += $(cairo_egl_headers) +all_cairo_headers += $(cairo_egl_headers) +all_cairo_private += $(cairo_egl_private) +all_cairo_sources += $(cairo_egl_sources) +ifeq ($(CAIRO_HAS_EGL_FUNCTIONS),1) +enabled_cairo_headers += $(cairo_egl_headers) +enabled_cairo_private += $(cairo_egl_private) +enabled_cairo_sources += $(cairo_egl_sources) +endif +all_cairo_pkgconf += cairo-egl.pc +ifeq ($(CAIRO_HAS_EGL_FUNCTIONS),1) +enabled_cairo_pkgconf += cairo-egl.pc +endif + +supported_cairo_headers += $(cairo_glx_headers) +all_cairo_headers += $(cairo_glx_headers) +all_cairo_private += $(cairo_glx_private) +all_cairo_sources += $(cairo_glx_sources) +ifeq ($(CAIRO_HAS_GLX_FUNCTIONS),1) +enabled_cairo_headers += $(cairo_glx_headers) +enabled_cairo_private += $(cairo_glx_private) +enabled_cairo_sources += $(cairo_glx_sources) +endif +all_cairo_pkgconf += cairo-glx.pc +ifeq ($(CAIRO_HAS_GLX_FUNCTIONS),1) +enabled_cairo_pkgconf += cairo-glx.pc +endif + unsupported_cairo_headers += $(cairo_script_headers) all_cairo_headers += $(cairo_script_headers) all_cairo_private += $(cairo_script_private) diff --git a/src/cairo-vg-surface.c b/src/cairo-vg-surface.c new file mode 100644 index 000000000..de3d0c6fb --- /dev/null +++ b/src/cairo-vg-surface.c @@ -0,0 +1,1938 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Opened Hand Ltd. + * Copyright © 2009 Chris Wilson + * + * 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.og/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. + * + * Contributor(s): + * Pierre Tardy <tardyp@gmail.com> + * Øyvind KolÃ¥s <pippin@gimp.org> + * Vladimi Vukicevic <vladimir@mozilla.com> (stubbed out base backend) + * Chris Wilson <chris@chris-wilson.co.uk> + */ + +#include "cairoint.h" + +#include "cairo-vg.h" + +#include "cairo-path-fixed-private.h" +#include "cairo-meta-surface-private.h" +#include "cairo-cache-private.h" + +#include <pixman.h> +#include <VG/openvg.h> + +//#define OPENVG_DEBUG + +/* + * Work that needs to be done: + * - Glyph cache / proper font support + * + * - First-class paths + * Paths are expensive for OpenVG, reuse paths whenever possible. + * So add a path cache, and first class paths! + */ + +typedef struct _cairo_vg_surface cairo_vg_surface_t; + +/* XXX need GL specific context control. :( */ +struct _cairo_vg_context { + cairo_status_t status; + cairo_reference_count_t ref_count; + + unsigned long target_id; + + VGPaint paint; + cairo_vg_surface_t *source; + double alpha; + + cairo_cache_t snapshot_cache; + + void *display; + void *context; + + cairo_status_t (*create_target) (cairo_vg_context_t *, + cairo_vg_surface_t *); + cairo_status_t (*set_target) (cairo_vg_context_t *, + cairo_vg_surface_t *); + void (*destroy_target) (cairo_vg_context_t *, cairo_vg_surface_t *); +}; + +struct _cairo_vg_surface { + cairo_surface_t base; + + cairo_vg_context_t *context; + + VGImage image; + VGImageFormat format; + int width; + int height; + cairo_bool_t own_image; + + cairo_cache_entry_t snapshot_cache_entry; + + cairo_bool_t clipped; + + unsigned long target_id; +}; + +static const cairo_surface_backend_t cairo_vg_surface_backend; + +slim_hidden_proto (cairo_vg_surface_create); + +static cairo_surface_t * +_vg_surface_create_internal (cairo_vg_context_t *context, + VGImage image, + VGImageFormat format, + int width, int height); + +static cairo_vg_context_t * +_vg_context_reference (cairo_vg_context_t *context) +{ + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&context->ref_count)); + + _cairo_reference_count_inc (&context->ref_count); + + return context; +} + +static cairo_vg_context_t * +_vg_context_lock (cairo_vg_context_t *context) +{ + /* XXX if we need to add locking, then it has to be recursive */ + return context; +} + +static cairo_int_status_t +_vg_context_set_target (cairo_vg_context_t *context, + cairo_vg_surface_t *surface) +{ + cairo_status_t status; + + if (surface->target_id == 0) { + status = context->create_target (context, surface); + if (unlikely (status)) + return status; + } + + if (context->target_id == surface->target_id) + return CAIRO_STATUS_SUCCESS; + + context->target_id = surface->target_id; + + return context->set_target (context, surface); +} + +static void +_vg_context_destroy_target (cairo_vg_context_t *context, + cairo_vg_surface_t *surface) +{ + if (surface->target_id == 0) + return; + + if (context->target_id == surface->target_id) + context->set_target (context, NULL); + + context->destroy_target (context, surface); +} + +static cairo_bool_t +_vg_snapshot_cache_can_remove (const void *entry) +{ + return TRUE; +} + +static void +_vg_snapshot_cache_remove (void *cache_entry) +{ + cairo_vg_surface_t *surface = cairo_container_of (cache_entry, + cairo_vg_surface_t, + snapshot_cache_entry); + surface->snapshot_cache_entry.hash = 0; + cairo_surface_destroy (&surface->base); +} + +static cairo_status_t +_vg_context_init (cairo_vg_context_t *context) +{ + cairo_status_t status; + + context->status = CAIRO_STATUS_SUCCESS; + CAIRO_REFERENCE_COUNT_INIT (&context->ref_count, 1); + + status = _cairo_cache_init (&context->snapshot_cache, + NULL, + _vg_snapshot_cache_can_remove, + _vg_snapshot_cache_remove, + 16*1024*1024); + if (unlikely (status)) + return status; + + context->target_id = 0; + context->source = NULL; + context->alpha = 1.0; + + context->paint = vgCreatePaint (); + vgLoadIdentity (); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_vg_context_destroy (cairo_vg_context_t *context) +{ + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&context->ref_count)); + + if (! _cairo_reference_count_dec_and_test (&context->ref_count)) + return; + + if (context->paint != VG_INVALID_HANDLE) + vgDestroyPaint (context->paint); + + _cairo_cache_fini (&context->snapshot_cache); + free (context); +} + +static void +_vg_context_unlock (cairo_vg_context_t *context) +{ +} + +#ifdef OPENVG_DEBUG +static void check_vg_errors(const char*function,int line) +{ + int err = vgGetError(); + if (err != VG_NO_ERROR){ + printf("%s+%d:vgError detected: 0x%08x.\n",function, line,err); + assert(err == VG_NO_ERROR); + } + +} +#define CHECK_VG_ERRORS() check_vg_errors(__FILE__,__LINE__) +#else +#define CHECK_VG_ERRORS() do{}while(0) +#endif //OPENVG_DEBUG + +static pixman_format_code_t +_vg_format_to_pixman (VGImageFormat format, + cairo_bool_t *needs_premult_fixup) +{ + *needs_premult_fixup = FALSE; + switch (format) { + /* RGB{A,X} channel ordering */ + case VG_sRGBX_8888: return 0; //PIXMAN_r8g8b8x8; + case VG_sRGBA_8888: return 0; + case VG_sRGBA_8888_PRE: return 0; //PIXMAN_r8b8g8a8; + case VG_sRGB_565: return PIXMAN_r5g6b5; + case VG_sRGBA_5551: return 0; + case VG_sRGBA_4444: return 0; + case VG_sL_8: return PIXMAN_g8; + case VG_lRGBX_8888: return 0; + case VG_lRGBA_8888: return 0; + case VG_lRGBA_8888_PRE: return 0; + case VG_lL_8: return 0; + case VG_A_8: return PIXMAN_a8; + case VG_BW_1: return PIXMAN_a1; + case VG_A_1: return PIXMAN_a1; + case VG_A_4: return PIXMAN_a4; + + /* {A,X}RGB channel ordering */ + case VG_sXRGB_8888: return PIXMAN_x8r8g8b8; + case VG_sARGB_8888: *needs_premult_fixup = TRUE; return PIXMAN_a8r8g8b8; + case VG_sARGB_8888_PRE: return PIXMAN_a8r8g8b8; + case VG_sARGB_1555: return 0; + case VG_sARGB_4444: return 0; + case VG_lXRGB_8888: return 0; + case VG_lARGB_8888: return 0; + case VG_lARGB_8888_PRE: return 0; + + /* BGR{A,X} channel ordering */ + case VG_sBGRX_8888: return PIXMAN_b8g8r8x8; + case VG_sBGRA_8888: *needs_premult_fixup = TRUE; return PIXMAN_b8g8r8a8; + case VG_sBGRA_8888_PRE: return PIXMAN_b8g8r8a8; + case VG_sBGR_565: return PIXMAN_b5g6r5; + case VG_sBGRA_5551: return 0; + case VG_sBGRA_4444: return 0; + case VG_lBGRX_8888: return 0; + case VG_lBGRA_8888: return 0; + case VG_lBGRA_8888_PRE: return 0; + + /* {A,X}BGR channel ordering */ + case VG_sXBGR_8888: return PIXMAN_x8b8g8r8; + case VG_sABGR_8888: *needs_premult_fixup = TRUE; return PIXMAN_a8b8g8r8; + case VG_sABGR_8888_PRE: return PIXMAN_a8b8g8r8; + case VG_sABGR_1555: return 0; + case VG_sABGR_4444: return 0; + case VG_lXBGR_8888: return 0; + case VG_lABGR_8888: return 0; + case VG_lABGR_8888_PRE: return 0; + default: return 0; + } +} + +static pixman_format_code_t +_vg_format_to_content (VGImageFormat format) +{ + /* XXX could use more simple bit tests */ + switch (format) { + /* RGB{A,X} channel ordering */ + case VG_sRGBX_8888: return CAIRO_CONTENT_COLOR; + case VG_sRGBA_8888: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sRGBA_8888_PRE: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sRGB_565: return CAIRO_CONTENT_COLOR; + case VG_sRGBA_5551: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sRGBA_4444: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sL_8: return CAIRO_CONTENT_ALPHA; + case VG_lRGBX_8888: return CAIRO_CONTENT_COLOR; + case VG_lRGBA_8888: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_lRGBA_8888_PRE: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_lL_8: return CAIRO_CONTENT_ALPHA; + case VG_A_8: return CAIRO_CONTENT_ALPHA; + case VG_A_4: return CAIRO_CONTENT_ALPHA; + case VG_A_1: return CAIRO_CONTENT_ALPHA; + case VG_BW_1: return CAIRO_CONTENT_ALPHA; + + /* {A,X}RGB channel ordering */ + case VG_sXRGB_8888: return CAIRO_CONTENT_COLOR; + case VG_sARGB_8888: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sARGB_8888_PRE: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sARGB_1555: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sARGB_4444: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_lXRGB_8888: return CAIRO_CONTENT_COLOR; + case VG_lARGB_8888: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_lARGB_8888_PRE: return CAIRO_CONTENT_COLOR_ALPHA; + + /* BGR{A,X} channel ordering */ + case VG_sBGRX_8888: return CAIRO_CONTENT_COLOR; + case VG_sBGRA_8888: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sBGRA_8888_PRE: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sBGR_565: return CAIRO_CONTENT_COLOR; + case VG_sBGRA_5551: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sBGRA_4444: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_lBGRX_8888: return CAIRO_CONTENT_COLOR; + case VG_lBGRA_8888: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_lBGRA_8888_PRE: return CAIRO_CONTENT_COLOR_ALPHA; + + /* {A,X}BGR channel ordering */ + case VG_sXBGR_8888: return CAIRO_CONTENT_COLOR; + case VG_sABGR_8888: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sABGR_8888_PRE: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sABGR_1555: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_sABGR_4444: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_lXBGR_8888: return CAIRO_CONTENT_COLOR; + case VG_lABGR_8888: return CAIRO_CONTENT_COLOR_ALPHA; + case VG_lABGR_8888_PRE: return CAIRO_CONTENT_COLOR_ALPHA; + default: return 0; + } +} + +static VGImageFormat +_vg_format_from_pixman (pixman_format_code_t format) +{ + /* XXX _PRE needs fixup */ + switch ((int) format) { + case PIXMAN_r5g6b5: return VG_sRGB_565; + case PIXMAN_g8: return VG_sL_8; + case PIXMAN_a8: return VG_A_8; + case PIXMAN_a1: return VG_BW_1; + case PIXMAN_x8r8g8b8: return VG_sXRGB_8888; + case PIXMAN_a8r8g8b8: return VG_sARGB_8888; // _PRE + case PIXMAN_b8g8r8x8: return VG_sBGRX_8888; + case PIXMAN_b8g8r8a8: return VG_sBGRA_8888; // _PRE + case PIXMAN_b5g6r5: return VG_sBGR_565; + case PIXMAN_x8b8g8r8: return VG_sXBGR_8888; + case PIXMAN_a8b8g8r8: return VG_sABGR_8888; // _PRE + default: return 0; + } +} + +static VGImageFormat +_vg_format_for_content (cairo_content_t content) +{ + switch (content) { + case CAIRO_CONTENT_ALPHA: return VG_A_8; + case CAIRO_CONTENT_COLOR: return VG_sXRGB_8888; + default: ASSERT_NOT_REACHED; + case CAIRO_CONTENT_COLOR_ALPHA: return VG_sARGB_8888; // _PRE + } +} + +static cairo_surface_t * +_vg_surface_create_similar (void *abstract_surface, + cairo_content_t content, + int width, + int height) +{ + cairo_vg_surface_t *surface = abstract_surface; + + if (width > vgGeti (VG_MAX_IMAGE_WIDTH) || + height > vgGeti (VG_MAX_IMAGE_HEIGHT)) + { + return NULL; + } + + return cairo_vg_surface_create (surface->context, content, width, height); +} + +static cairo_int_status_t +_vg_surface_intersect_clip_path (void *abstract_surface, + cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_vg_surface_t *surface = abstract_surface; + cairo_vg_surface_t *mask; + cairo_rectangle_int_t extents, clip_extents; + cairo_solid_pattern_t white; + cairo_status_t status; + + if (path == NULL) { + surface->clipped = FALSE; + vgMask (VG_INVALID_HANDLE, + VG_FILL_MASK, 0, 0, surface->width, surface->height); + vgSeti (VG_MASKING, VG_FALSE); + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; + } + + extents.x = extents.y = 0; + extents.width = surface->width; + extents.height = surface->height; + _cairo_path_fixed_approximate_clip_extents (path, &clip_extents); + if (! _cairo_rectangle_intersect (&clip_extents, &extents)) + surface->clipped = TRUE; + + if (surface->clipped) + return CAIRO_STATUS_SUCCESS; + + mask = (cairo_vg_surface_t *) + _vg_surface_create_similar (surface, CAIRO_CONTENT_ALPHA, + surface->width, surface->height); + if (unlikely (mask == NULL)) + return CAIRO_INT_STATUS_UNSUPPORTED; + if (unlikely (mask->base.status)) + return mask->base.status; + + _cairo_pattern_init_solid (&white, CAIRO_COLOR_WHITE, CAIRO_CONTENT_ALPHA); + status = _cairo_surface_fill (&mask->base, + CAIRO_OPERATOR_SOURCE, &white.base, + path, fill_rule, tolerance, antialias, + NULL); + if (status) { + cairo_surface_destroy (&mask->base); + return status; + } + + vgSeti (VG_MASKING, VG_TRUE); + vgMask (mask->image, VG_INTERSECT_MASK, 0, 0, mask->width, mask->height); + + cairo_surface_destroy (&mask->base); + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_vg_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_vg_surface_t *surface = abstract_surface; + + extents->x = 0; + extents->y = 0; + extents->width = surface->width; + extents->height = surface->height; + + return CAIRO_STATUS_SUCCESS; +} + +#define MAX_SEG 16 /* max number of knots to upload in a batch */ + +typedef struct _vg_path { + VGPath path; + cairo_matrix_t *ctm_inverse; + + VGubyte gseg[MAX_SEG]; + VGfloat gdata[MAX_SEG*3*2]; + int dcount; + int scount; +} vg_path_t; + +static cairo_status_t +_vg_move_to (void *closure, + const cairo_point_t *point) +{ + vg_path_t *path = closure; + double x = _cairo_fixed_to_double (point->x); + double y = _cairo_fixed_to_double (point->y); + + if (path->ctm_inverse) + cairo_matrix_transform_point (path->ctm_inverse, &x, &y); + + path->gseg[path->scount++] = VG_MOVE_TO; + path->gdata[path->dcount++] = x; + path->gdata[path->dcount++] = y; + + if (path->scount >= MAX_SEG-1) { + vgAppendPathData (path->path, path->scount, path->gseg, path->gdata); + path->scount = 0; + path->dcount = 0; + } + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_vg_line_to (void *closure, + const cairo_point_t *point) +{ + vg_path_t *path = closure; + double x = _cairo_fixed_to_double (point->x); + double y = _cairo_fixed_to_double (point->y); + + if (path->ctm_inverse) + cairo_matrix_transform_point (path->ctm_inverse, &x, &y); + + path->gseg[path->scount++] = VG_LINE_TO; + path->gdata[path->dcount++] = x; + path->gdata[path->dcount++] = y; + + if (path->scount >= MAX_SEG-1) { + vgAppendPathData (path->path, path->scount, path->gseg, path->gdata); + path->scount = 0; + path->dcount = 0; + } + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_vg_curve_to (void *closure, + const cairo_point_t *p0, + const cairo_point_t *p1, + const cairo_point_t *p2) +{ + vg_path_t *path = closure; + double x0 = _cairo_fixed_to_double (p0->x); + double y0 = _cairo_fixed_to_double (p0->y); + double x1 = _cairo_fixed_to_double (p1->x); + double y1 = _cairo_fixed_to_double (p1->y); + double x2 = _cairo_fixed_to_double (p2->x); + double y2 = _cairo_fixed_to_double (p2->y); + + if (path->ctm_inverse) { + cairo_matrix_transform_point (path->ctm_inverse, &x0, &y0); + cairo_matrix_transform_point (path->ctm_inverse, &x1, &y1); + cairo_matrix_transform_point (path->ctm_inverse, &x2, &y2); + } + + path->gseg[path->scount++] = VG_CUBIC_TO; + path->gdata[path->dcount++] = x0; + path->gdata[path->dcount++] = y0; + path->gdata[path->dcount++] = x1; + path->gdata[path->dcount++] = y1; + path->gdata[path->dcount++] = x2; + path->gdata[path->dcount++] = y2; + + if (path->scount >= MAX_SEG-1) { + vgAppendPathData(path->path, path->scount, path->gseg, path->gdata); + path->scount = 0; + path->dcount = 0; + } + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_vg_close_path (void *closure) +{ + vg_path_t *path = closure; + + path->gseg[path->scount++] = VG_CLOSE_PATH; + + if (path->scount >= MAX_SEG-1) { + vgAppendPathData (path->path, path->scount, path->gseg, path->gdata); + path->scount = 0; + path->dcount = 0; + } + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static void +_vg_path_from_cairo (vg_path_t *vg_path, + cairo_path_fixed_t *path) +{ + cairo_status_t status; + + vg_path->scount = 0; + vg_path->dcount = 0; + + status = _cairo_path_fixed_interpret (path, + CAIRO_DIRECTION_FORWARD, + _vg_move_to, + _vg_line_to, + _vg_curve_to, + _vg_close_path, + vg_path); + assert (status == CAIRO_STATUS_SUCCESS); + + vgAppendPathData (vg_path->path, + vg_path->scount, vg_path->gseg, vg_path->gdata); + CHECK_VG_ERRORS(); +} + +static cairo_bool_t +_vg_is_supported_operator (cairo_operator_t op) +{ + switch ((int) op) { + case CAIRO_OPERATOR_SOURCE: + case CAIRO_OPERATOR_OVER: + case CAIRO_OPERATOR_IN: + case CAIRO_OPERATOR_DEST_OVER: + case CAIRO_OPERATOR_DEST_IN: + case CAIRO_OPERATOR_ADD: + return TRUE; + + default: + return FALSE; + } +} + +static VGBlendMode +_vg_operator (cairo_operator_t op) +{ + switch ((int) op) { + case CAIRO_OPERATOR_SOURCE: + return VG_BLEND_SRC; + case CAIRO_OPERATOR_OVER: + return VG_BLEND_SRC_OVER; + case CAIRO_OPERATOR_IN: + return VG_BLEND_SRC_IN; + case CAIRO_OPERATOR_DEST_OVER: + return VG_BLEND_DST_OVER; + case CAIRO_OPERATOR_DEST_IN: + return VG_BLEND_DST_IN; + case CAIRO_OPERATOR_ADD: + return VG_BLEND_ADDITIVE; + default: + ASSERT_NOT_REACHED; + return VG_BLEND_SRC_OVER; + } +} + +static VGFillRule +_vg_fill_rule_from_cairo (cairo_fill_rule_t rule) +{ + switch (rule) { + case CAIRO_FILL_RULE_EVEN_ODD: return VG_EVEN_ODD; + case CAIRO_FILL_RULE_WINDING: return VG_NON_ZERO; + } + + ASSERT_NOT_REACHED; + return VG_NON_ZERO; +} + +static VGRenderingQuality +_vg_rendering_quality_from_cairo (cairo_antialias_t aa) +{ + switch (aa) { + case CAIRO_ANTIALIAS_DEFAULT: + case CAIRO_ANTIALIAS_SUBPIXEL: + return VG_RENDERING_QUALITY_BETTER; + + case CAIRO_ANTIALIAS_GRAY: + return VG_RENDERING_QUALITY_FASTER; + + case CAIRO_ANTIALIAS_NONE: + return VG_RENDERING_QUALITY_NONANTIALIASED; + } + + ASSERT_NOT_REACHED; + return VG_RENDERING_QUALITY_BETTER; +} + +static VGCapStyle +_vg_line_cap_from_cairo (cairo_line_cap_t cap) +{ + switch (cap) { + case CAIRO_LINE_CAP_BUTT: return VG_CAP_BUTT; + case CAIRO_LINE_CAP_ROUND: return VG_CAP_ROUND; + case CAIRO_LINE_CAP_SQUARE: return VG_CAP_SQUARE; + } + + ASSERT_NOT_REACHED; + return VG_CAP_BUTT; +} + +static VGJoinStyle +_vg_line_join_from_cairo (cairo_line_join_t join) +{ + switch (join) { + case CAIRO_LINE_JOIN_MITER: return VG_JOIN_MITER; + case CAIRO_LINE_JOIN_ROUND: return VG_JOIN_ROUND; + case CAIRO_LINE_JOIN_BEVEL: return VG_JOIN_BEVEL; + } + + ASSERT_NOT_REACHED; + return VG_JOIN_MITER; +} + +static void +_vg_matrix_from_cairo (VGfloat *dst, const cairo_matrix_t *src) +{ + dst[0] = /* sx */ src->xx; + dst[1] = /* shy */ src->yx; + dst[2] = /* w0 */ 0; + dst[3] = /* shx */ src->xy; + dst[4] = /* sy */ src->yy; + dst[5] = /* w1 */ 0; + dst[6] = /* tx */ src->x0; + dst[7] = /* ty */ src->y0; + dst[8] = /* w2 */ 0; +} + +static cairo_status_t +_vg_setup_gradient_stops (cairo_vg_context_t *context, + const cairo_gradient_pattern_t *pattern) +{ + VGint numstops = pattern->n_stops; + VGfloat *stops, stack_stops[CAIRO_STACK_ARRAY_LENGTH (VGfloat)]; + int i; + + if (numstops*5 < ARRAY_LENGTH (stack_stops)) { + stops = stack_stops; + } else { + stops = _cairo_malloc_ab (numstops, 5*sizeof (VGfloat)); + if (unlikely (stops == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + for (i = 0; i < numstops; i++) { + stops[i*5 + 0] = pattern->stops[i].offset; + stops[i*5 + 1] = pattern->stops[i].color.red; + stops[i*5 + 2] = pattern->stops[i].color.green; + stops[i*5 + 3] = pattern->stops[i].color.blue; + stops[i*5 + 4] = pattern->stops[i].color.alpha * context->alpha; + } + + vgSetParameterfv (context->paint, + VG_PAINT_COLOR_RAMP_STOPS, numstops * 5, stops); + + if (stops != stack_stops) + free (stops); + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static void +_vg_set_source_matrix (const cairo_pattern_t *pat) +{ + cairo_matrix_t mat; + cairo_status_t status; + VGfloat vmat[9]; + + mat = pat->matrix; + status = cairo_matrix_invert (&mat); + assert (status == CAIRO_STATUS_SUCCESS); + + _vg_matrix_from_cairo (vmat, &mat); + + vgSeti (VG_MATRIX_MODE, VG_MATRIX_FILL_PAINT_TO_USER); + vgLoadMatrix (vmat); + vgSeti (VG_MATRIX_MODE, VG_MATRIX_STROKE_PAINT_TO_USER); + vgLoadMatrix (vmat); + vgSeti (VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE); + + CHECK_VG_ERRORS(); +} + +static cairo_status_t +_vg_setup_linear_source (cairo_vg_context_t *context, + const cairo_linear_pattern_t *lpat) +{ + VGfloat linear[4]; + + linear[0] = _cairo_fixed_to_double (lpat->p1.x); + linear[1] = _cairo_fixed_to_double (lpat->p1.y); + linear[2] = _cairo_fixed_to_double (lpat->p2.x); + linear[3] = _cairo_fixed_to_double (lpat->p2.y); + + vgSetParameteri (context->paint, + VG_PAINT_COLOR_RAMP_SPREAD_MODE, + VG_COLOR_RAMP_SPREAD_PAD); + vgSetParameteri (context->paint, + VG_PAINT_TYPE, + VG_PAINT_TYPE_LINEAR_GRADIENT); + vgSetParameterfv (context->paint, + VG_PAINT_LINEAR_GRADIENT, 4, linear); + + _vg_set_source_matrix (&lpat->base.base); + + CHECK_VG_ERRORS(); + return _vg_setup_gradient_stops (context, &lpat->base); + +} + +static cairo_status_t +_vg_setup_radial_source (cairo_vg_context_t *context, + cairo_radial_pattern_t *rpat) +{ + VGfloat radial[5]; + + radial[0] = _cairo_fixed_to_double (rpat->c1.x); + radial[1] = _cairo_fixed_to_double (rpat->c1.y); + radial[2] = _cairo_fixed_to_double (rpat->c2.x); + radial[3] = _cairo_fixed_to_double (rpat->c2.y); + radial[4] = _cairo_fixed_to_double (rpat->r2); + + vgSetParameteri (context->paint, + VG_PAINT_COLOR_RAMP_SPREAD_MODE, VG_COLOR_RAMP_SPREAD_PAD); + vgSetParameteri (context->paint, + VG_PAINT_TYPE, VG_PAINT_TYPE_RADIAL_GRADIENT); + vgSetParameterfv (context->paint, + VG_PAINT_RADIAL_GRADIENT, 5, radial); + + _vg_set_source_matrix (&rpat->base.base); + + /* FIXME: copy/adapt fixes from SVG backend to add inner radius */ + + CHECK_VG_ERRORS(); + return _vg_setup_gradient_stops (context, &rpat->base); +} + +static cairo_status_t +_vg_setup_solid_source (cairo_vg_context_t *context, + cairo_solid_pattern_t *spat) +{ + VGfloat color[] = { + spat->color.red, + spat->color.green, + spat->color.blue, + spat->color.alpha * context->alpha + }; + + vgSetParameteri (context->paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR); + vgSetParameterfv (context->paint, VG_PAINT_COLOR, 4, color); + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_vg_surface_t * +_vg_clone_meta_surface (cairo_vg_context_t *context, + cairo_surface_t *surface) +{ + VGImage vg_image; + VGImageFormat format; + cairo_status_t status; + cairo_rectangle_int_t extents; + cairo_vg_surface_t *clone; + + status = _cairo_surface_get_extents (surface, &extents); + if (status) + return NULL; + + if (extents.width > vgGeti (VG_MAX_IMAGE_WIDTH) || + extents.height > vgGeti (VG_MAX_IMAGE_HEIGHT)) + { + return NULL; + } + + format = _vg_format_for_content (surface->content); + + /* NONALIASED, FASTER, BETTER */ + vg_image = vgCreateImage (format, + extents.width, extents.height, + VG_IMAGE_QUALITY_FASTER); + clone = (cairo_vg_surface_t *) + _vg_surface_create_internal (context, vg_image, format, + extents.width, extents.height); + cairo_surface_set_device_offset (&clone->base, -extents.x, -extents.y); + + status = cairo_meta_surface_replay (surface, &clone->base); + if (unlikely (status)) { + cairo_surface_destroy (&clone->base); + return (cairo_vg_surface_t *) _cairo_surface_create_in_error (status); + } + + return clone; +} + +static cairo_vg_surface_t * +_vg_clone_image_surface (cairo_vg_context_t *context, + cairo_surface_t *surface) +{ + cairo_image_surface_t *image; + void *image_extra; + cairo_status_t status; + VGImage vg_image; + VGImageFormat format; + cairo_rectangle_int_t extents; + cairo_vg_surface_t *clone; + + if (surface->backend->acquire_source_image == NULL) + return NULL; + + status = _cairo_surface_get_extents (surface, &extents); + if (status) + return NULL; + + if (extents.width > vgGeti (VG_MAX_IMAGE_WIDTH) || + extents.height > vgGeti (VG_MAX_IMAGE_HEIGHT)) + { + return NULL; + } + + status = _cairo_surface_acquire_source_image (surface, + &image, &image_extra); + if (unlikely (status)) + return (cairo_vg_surface_t *) _cairo_surface_create_in_error (status); + + format = _vg_format_from_pixman (image->pixman_format); + if (format == 0) + format = _vg_format_for_content (image->base.content); + + /* NONALIASED, FASTER, BETTER */ + vg_image = vgCreateImage (format, + image->width, image->height, + VG_IMAGE_QUALITY_FASTER); + clone = (cairo_vg_surface_t *) + _vg_surface_create_internal (context, vg_image, format, + image->width, image->height); + if (unlikely (clone->base.status)) + return clone; + + vgImageSubData (clone->image, + image->data, image->stride, + format, 0, 0, image->width, image->height); + + _cairo_surface_release_source_image (surface, image, image_extra); + + return clone; +} + +static void +_vg_surface_remove_from_cache (cairo_surface_t *abstract_surface) +{ + cairo_vg_surface_t *surface = (cairo_vg_surface_t *) abstract_surface; + + if (surface->snapshot_cache_entry.hash) { + cairo_vg_context_t *context; + + context = _vg_context_lock (surface->context); + _cairo_cache_remove (&context->snapshot_cache, + &surface->snapshot_cache_entry); + _vg_context_unlock (context); + + surface->snapshot_cache_entry.hash = 0; + } +} + +static cairo_status_t +_vg_setup_surface_source (cairo_vg_context_t *context, + cairo_surface_pattern_t *spat) +{ + cairo_surface_t *snapshot; + cairo_vg_surface_t *clone; + cairo_status_t status; + + snapshot = _cairo_surface_has_snapshot (spat->surface, + &cairo_vg_surface_backend, + spat->surface->content); + if (snapshot != NULL) { + clone = (cairo_vg_surface_t *) cairo_surface_reference (snapshot); + goto DONE; + } + + if (_cairo_surface_is_meta (spat->surface)) + clone = _vg_clone_meta_surface (context, spat->surface); + else + clone = _vg_clone_image_surface (context, spat->surface); + if (clone == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + if (unlikely (clone->base.status)) + return clone->base.status; + + clone->snapshot_cache_entry.hash = clone->base.unique_id; + status = _cairo_cache_insert (&context->snapshot_cache, + &clone->snapshot_cache_entry); + if (unlikely (status)) { + clone->snapshot_cache_entry.hash = 0; + cairo_surface_destroy (&clone->base); + return status; + } + + status = _cairo_surface_attach_snapshot (spat->surface, &clone->base, + _vg_surface_remove_from_cache); + if (unlikely (status)) { + cairo_surface_destroy (&clone->base); + return status; + } + +DONE: + cairo_surface_destroy (&context->source->base); + context->source = clone; + + vgSetParameteri (context->paint, VG_PAINT_TYPE, VG_PAINT_TYPE_PATTERN); + + switch (spat->base.extend) { + case CAIRO_EXTEND_PAD: + vgSetParameteri (context->paint, + VG_PAINT_PATTERN_TILING_MODE, + VG_TILE_PAD); + break; + + case CAIRO_EXTEND_NONE: + vgSetParameteri (context->paint, + VG_PAINT_PATTERN_TILING_MODE, + VG_TILE_FILL); + { + VGfloat color[] = {0,0,0,0}; + vgSetfv (VG_TILE_FILL_COLOR, 4, color); + } + break; + + case CAIRO_EXTEND_REPEAT: + vgSetParameteri (context->paint, + VG_PAINT_PATTERN_TILING_MODE, + VG_TILE_REPEAT); + break; + + default: + ASSERT_NOT_REACHED; + case CAIRO_EXTEND_REFLECT: + vgSetParameteri (context->paint, + VG_PAINT_PATTERN_TILING_MODE, + VG_TILE_REFLECT); + break; + } + vgPaintPattern (context->paint, context->source->image); + + _vg_set_source_matrix (&spat->base); + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +setup_source (cairo_vg_context_t *context, + const cairo_pattern_t *source) +{ + switch (source->type) { + case CAIRO_PATTERN_TYPE_SOLID: + return _vg_setup_solid_source (context, + (cairo_solid_pattern_t *) source); + case CAIRO_PATTERN_TYPE_LINEAR: + return _vg_setup_linear_source (context, + (cairo_linear_pattern_t *) source); + case CAIRO_PATTERN_TYPE_RADIAL: + return _vg_setup_radial_source (context, + (cairo_radial_pattern_t *) source); + case CAIRO_PATTERN_TYPE_SURFACE: + return _vg_setup_surface_source (context, + (cairo_surface_pattern_t *) source); + default: + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_UNSUPPORTED; + } +} + +static cairo_int_status_t +_vg_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t*source, + cairo_path_fixed_t *path, + cairo_stroke_style_t *style, + cairo_matrix_t *ctm, + cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + cairo_rectangle_int_t *extents) +{ + cairo_vg_surface_t *surface = abstract_surface; + cairo_vg_context_t *context; + cairo_status_t status; + VGfloat state[9]; + VGfloat strokeTransform[9]; + vg_path_t vg_path; + + if (surface->clipped) + return CAIRO_STATUS_SUCCESS; + + if (! _vg_is_supported_operator (op)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + context = _vg_context_lock (surface->context); + status = _vg_context_set_target (context, surface); + if (status) { + _vg_context_unlock (context); + return status; + } + + status = setup_source (context, source); + if (status) { + _vg_context_unlock (context); + return status; + } + + vg_path.path = vgCreatePath (VG_PATH_FORMAT_STANDARD, + VG_PATH_DATATYPE_F, + 1, 0, 0, 0, + VG_PATH_CAPABILITY_ALL); + + vgGetMatrix (state); + _vg_matrix_from_cairo (strokeTransform, ctm); + vgMultMatrix (strokeTransform); + + vg_path.ctm_inverse = ctm_inverse; + + _vg_path_from_cairo (&vg_path, path); + + /* XXX DASH_PATTERN, DASH_PHASE */ + vgSetf (VG_STROKE_LINE_WIDTH, style->line_width); + vgSetf (VG_STROKE_MITER_LIMIT, style->miter_limit); + vgSetf (VG_STROKE_JOIN_STYLE, _vg_line_join_from_cairo (style->line_join)); + vgSetf (VG_STROKE_CAP_STYLE, _vg_line_cap_from_cairo (style->line_cap)); + + vgSeti (VG_BLEND_MODE, _vg_operator (op)); + + vgSetPaint (context->paint, VG_STROKE_PATH); + + vgDrawPath (vg_path.path, VG_STROKE_PATH); + + vgDestroyPath (vg_path.path); + + vgLoadMatrix (state); + + CHECK_VG_ERRORS(); + _vg_context_unlock (context); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_vg_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + cairo_rectangle_int_t *extents) +{ + cairo_vg_surface_t *surface = abstract_surface; + cairo_vg_context_t *context; + cairo_status_t status; + vg_path_t vg_path; + + if (surface->clipped) + return CAIRO_STATUS_SUCCESS; + + if (op == CAIRO_OPERATOR_DEST) + return CAIRO_STATUS_SUCCESS; + + if (! _vg_is_supported_operator (op)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + context = _vg_context_lock (surface->context); + status = _vg_context_set_target (context, surface); + if (status) { + _vg_context_unlock (context); + return status; + } + + status = setup_source (context, source); + if (status) { + _vg_context_unlock (context); + return status; + } + + vg_path.path = vgCreatePath (VG_PATH_FORMAT_STANDARD, + VG_PATH_DATATYPE_F, + 1, 0, + 0, 0, + VG_PATH_CAPABILITY_ALL); + vg_path.ctm_inverse = NULL; + + _vg_path_from_cairo (&vg_path, path); + + /* XXX tolerance */ + + vgSeti (VG_BLEND_MODE, _vg_operator (op)); + vgSetf (VG_FILL_RULE, _vg_fill_rule_from_cairo (fill_rule)); + vgSetf (VG_RENDERING_QUALITY, _vg_rendering_quality_from_cairo (antialias)); + + vgSetPaint (context->paint, VG_FILL_PATH); + + vgDrawPath (vg_path.path, VG_FILL_PATH); + + vgDestroyPath (vg_path.path); + + _vg_context_unlock (context); + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_vg_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_rectangle_int_t *extents) +{ + cairo_vg_surface_t *surface = abstract_surface; + cairo_vg_context_t *context; + cairo_status_t status; + + if (surface->clipped) + return CAIRO_STATUS_SUCCESS; + + if (op == CAIRO_OPERATOR_DEST) + return CAIRO_STATUS_SUCCESS; + + if (! _vg_is_supported_operator (op)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + context = _vg_context_lock (surface->context); + status = _vg_context_set_target (context, surface); + if (status) { + _vg_context_unlock (context); + return status; + } + + status = setup_source (context, source); + if (status) { + _vg_context_unlock (context); + return status; + } + + vgSeti (VG_BLEND_MODE, _vg_operator (op)); + vgSetPaint (context->paint, VG_FILL_PATH); + + { /* creating a rectangular path that should cover the extent */ + VGubyte segs[] = { + VG_MOVE_TO_ABS, VG_LINE_TO_ABS, + VG_LINE_TO_ABS, VG_LINE_TO_ABS, + VG_CLOSE_PATH + }; + VGfloat data[] = { + 0, 0, + surface->width, 0, + surface->width, surface->height, + 0, surface->height + }; + VGPath fullext; + + fullext = vgCreatePath (VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, + 1,0,0,0, VG_PATH_CAPABILITY_ALL); + vgAppendPathData (fullext, sizeof(segs), segs, data); + + vgDrawPath (fullext, VG_FILL_PATH); + + vgDestroyPath (fullext); + } + + _vg_context_unlock (context); + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_vg_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + cairo_rectangle_int_t *extents) +{ + cairo_vg_surface_t *surface = abstract_surface; + cairo_status_t status; + + if (surface->clipped) + return CAIRO_STATUS_SUCCESS; + + if (! _vg_is_supported_operator (op)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Handle paint-with-alpha to do fades cheaply */ + if (mask->type == CAIRO_PATTERN_TYPE_SOLID) { + cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) mask; + cairo_vg_context_t *context = _vg_context_lock (surface->context); + double alpha = context->alpha; + + context->alpha = solid->color.alpha; + status = _vg_surface_paint (abstract_surface, op, source, extents); + context->alpha = alpha; + + _vg_context_unlock (context); + + return status; + } + + return CAIRO_INT_STATUS_UNSUPPORTED; +} + +static void +_vg_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + _cairo_font_options_init_default (options); + + cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_ON); +} + +static cairo_int_status_t +_vg_surface_show_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + int *remaining_glyphs, + cairo_rectangle_int_t *extents) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_path_fixed_t path; + + if (num_glyphs <= 0) + return CAIRO_STATUS_SUCCESS; + + _cairo_path_fixed_init (&path); + + /* XXX Glyph cache! OpenVG font support in 1.1? */ + + status = _cairo_scaled_font_glyph_path (scaled_font, + glyphs, num_glyphs, + &path); + if (unlikely (status)) + goto BAIL; + + status = _vg_surface_fill (abstract_surface, + op, source, &path, + CAIRO_FILL_RULE_WINDING, + CAIRO_GSTATE_TOLERANCE_DEFAULT, + CAIRO_ANTIALIAS_SUBPIXEL, + extents); +BAIL: + _cairo_path_fixed_fini (&path); + return status; +} + +static inline int +multiply_alpha (int alpha, int color) +{ + int temp = alpha * color + 0x80; + return (temp + (temp >> 8)) >> 8; +} + +static void +premultiply_argb (uint8_t *data, + int width, + int height, + int stride) +{ + int i; + + while (height --) { + uint32_t *row = (uint32_t *) data; + + for (i = 0; i < width; i++) { + uint32_t p = row[i]; + uint8_t alpha; + + alpha = p >> 24; + if (alpha == 0) { + row[i] = 0; + } else if (alpha != 0xff) { + uint8_t r = multiply_alpha (alpha, (p >> 16) & 0xff); + uint8_t g = multiply_alpha (alpha, (p >> 8) & 0xff); + uint8_t b = multiply_alpha (alpha, (p >> 0) & 0xff); + row[i] = (alpha << 24) | (r << 16) | (g << 8) | (b << 0); + } + } + + data += stride; + } +} + +static cairo_int_status_t +_vg_get_image (cairo_vg_surface_t *surface, + int x, int y, + int width, int height, + cairo_image_surface_t **image_out) +{ + cairo_image_surface_t *image; + pixman_image_t *pixman_image; + pixman_format_code_t pixman_format; + cairo_bool_t needs_premultiply; + + pixman_format = _vg_format_to_pixman (surface->format, + &needs_premultiply); + if (pixman_format == 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + pixman_image = pixman_image_create_bits (pixman_format, + width, height, + NULL, 0); + if (unlikely (pixman_image == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + vgFinish (); + CHECK_VG_ERRORS(); + + vgGetImageSubData (surface->image, + pixman_image_get_data (pixman_image), + pixman_image_get_stride (pixman_image), + surface->format, + x, y, width, height); + + image = (cairo_image_surface_t *) + _cairo_image_surface_create_for_pixman_image (pixman_image, + pixman_format); + if (unlikely (image->base.status)) { + pixman_image_unref (pixman_image); + return image->base.status; + } + + if (needs_premultiply) + premultiply_argb (image->data, width, height, image->stride); + + *image_out = image; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_vg_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_vg_surface_t *surface = abstract_surface; + + CHECK_VG_ERRORS(); + *image_extra = NULL; + return _vg_get_image (surface, + 0, 0, surface->width, surface->height, + image_out); +} + +static void +_vg_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + cairo_surface_destroy (&image->base); +} + +static cairo_status_t +_vg_surface_acquire_dest_image (void *abstract_surface, + cairo_rectangle_int_t *interest_rect, + cairo_image_surface_t **image_out, + cairo_rectangle_int_t *image_rect_out, + void **image_extra) +{ + cairo_vg_surface_t *surface = abstract_surface; + + *image_rect_out = *interest_rect; + *image_extra = NULL; + return _vg_get_image (surface, + interest_rect->x, interest_rect->y, + interest_rect->width, interest_rect->height, + image_out); +} + +static void +unpremultiply_argb (uint8_t *data, + int width, + int height, + int stride) +{ + int i; + + while (height--) { + uint32_t *row = (uint32_t *) data; + + for (i = 0; i < width; i ++) { + uint32_t p = row[i]; + uint8_t alpha; + + alpha = p >> 24; + if (alpha == 0) { + row[i] = 0; + } else if (alpha != 0xff) { + uint8_t r = (((p >> 16) & 0xff) * 255 + alpha / 2) / alpha; + uint8_t g = (((p >> 8) & 0xff) * 255 + alpha / 2) / alpha; + uint8_t b = (((p >> 0) & 0xff) * 255 + alpha / 2) / alpha; + row[i] = (alpha << 24) | (r << 16) | (g << 8) | (b << 0); + } + } + + data += stride; + } +} + +static void +_vg_surface_release_dest_image (void *abstract_surface, + cairo_rectangle_int_t *interest_rect, + cairo_image_surface_t *image, + cairo_rectangle_int_t *image_rect, + void *image_extra) +{ + cairo_vg_surface_t *surface = abstract_surface; + cairo_bool_t needs_unpremultiply; + + /* XXX clipping is incorrect + * We can either composite through the current clip mask using fill, + * or what for the clipping overhaul patches, due to land any time + * soon now... + */ + + _vg_format_to_pixman (surface->format, &needs_unpremultiply); + if (needs_unpremultiply) { + unpremultiply_argb (image->data, + image->width, image->height, + image->stride); + } + + vgImageSubData (surface->image, + image->data, image->stride, + surface->format, + image_rect->x, image_rect->y, + image_rect->width, image_rect->height); + + cairo_surface_destroy (&image->base); +} + +static cairo_status_t +_vg_surface_finish (void *abstract_surface) +{ + cairo_vg_surface_t *surface = abstract_surface; + cairo_vg_context_t *context = _vg_context_lock (surface->context); + + if (surface->snapshot_cache_entry.hash) { + _cairo_cache_remove (&context->snapshot_cache, + &surface->snapshot_cache_entry); + + surface->snapshot_cache_entry.hash = 0; + } + + if (surface->own_image) + vgDestroyImage (surface->image); + + _vg_context_destroy_target (context, surface); + + _vg_context_unlock (context); + _vg_context_destroy (context); + + CHECK_VG_ERRORS(); + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t cairo_vg_surface_backend = { + CAIRO_SURFACE_TYPE_VG, + _vg_surface_create_similar, + _vg_surface_finish, + _vg_surface_acquire_source_image, + _vg_surface_release_source_image, + _vg_surface_acquire_dest_image, + _vg_surface_release_dest_image, + NULL, /* clone_similar */ + NULL, /* composite */ + NULL, /* fill_rectangles */ + NULL, /* composite_trapezoids */ + NULL, /* create_span_renderer */ + NULL, /* check_span_renderer */ + NULL, /* copy_page */ + NULL, /* show_page */ + NULL, /* set_clip_region */ + _vg_surface_intersect_clip_path, + _vg_surface_get_extents, + NULL, /* old_show_glyphs */ + _vg_surface_get_font_options, /* get_font_options */ + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + NULL, /* scaled_font_fini */ + NULL, /* scaled_glyph_fini */ + + _vg_surface_paint, + _vg_surface_mask, + _vg_surface_stroke, + _vg_surface_fill, + _vg_surface_show_glyphs, + + NULL, /* snapshot */ + NULL, /* is_similar */ + NULL, /* reset */ +}; + +static cairo_surface_t * +_vg_surface_create_internal (cairo_vg_context_t *context, + VGImage image, + VGImageFormat format, + int width, int height) +{ + cairo_vg_surface_t *surface; + + surface = malloc (sizeof (cairo_vg_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + surface->context = _vg_context_reference (context); + + surface->image = image; + surface->format = format; + + _cairo_surface_init (&surface->base, + &cairo_vg_surface_backend, + _vg_format_to_content (format)); + + surface->width = width; + surface->height = height; + surface->clipped = FALSE; + + surface->snapshot_cache_entry.hash = 0; + + surface->target_id = 0; + + /* Force an initial "clip", that resets the mask */ + _vg_surface_intersect_clip_path (surface, NULL, 0, 0.0, 0); + + CHECK_VG_ERRORS(); + return &surface->base; +} + +cairo_surface_t * +cairo_vg_surface_create_for_image (cairo_vg_context_t *context, + VGImage image, + VGImageFormat format, + int width, int height) +{ + cairo_bool_t premult; + + if (context->status) + return _cairo_surface_create_in_error (context->status); + + if (image == VG_INVALID_HANDLE) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + if (_vg_format_to_pixman (format, &premult) == 0) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + + return _vg_surface_create_internal (context, image, format, width, height); +} + +cairo_surface_t * +cairo_vg_surface_create (cairo_vg_context_t *context, + cairo_content_t content, + int width, + int height) +{ + VGImage image; + VGImageFormat format; + cairo_surface_t *surface; + + if (context->status) + return _cairo_surface_create_in_error (context->status); + + if (! CAIRO_CONTENT_VALID (content)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_CONTENT)); + + if (width > vgGeti (VG_MAX_IMAGE_WIDTH) || + height > vgGeti (VG_MAX_IMAGE_HEIGHT)) + { + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + } + + + format = _vg_format_for_content (content); + image = vgCreateImage (format, width, height, VG_IMAGE_QUALITY_BETTER); + if (image == VG_INVALID_HANDLE) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + surface = _vg_surface_create_internal (context, + image, format, width, height); + if (unlikely (surface->status)) + return surface; + + ((cairo_vg_surface_t *) surface)->own_image = TRUE; + return surface; +} +slim_hidden_def (cairo_vg_surface_create); + +VGImage +cairo_vg_surface_get_image (cairo_surface_t *abstract_surface) +{ + cairo_vg_surface_t *surface; + + if (abstract_surface->backend != &cairo_vg_surface_backend) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return VG_INVALID_HANDLE; + } + + surface = (cairo_vg_surface_t *) abstract_surface; + return surface->image; +} + +int +cairo_vg_surface_get_width (cairo_surface_t *abstract_surface) +{ + cairo_vg_surface_t *surface; + + if (abstract_surface->backend != &cairo_vg_surface_backend) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + surface = (cairo_vg_surface_t *) abstract_surface; + return surface->width; +} + +int +cairo_vg_surface_get_height (cairo_surface_t *abstract_surface) +{ + cairo_vg_surface_t *surface; + + if (abstract_surface->backend != &cairo_vg_surface_backend) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + surface = (cairo_vg_surface_t *) abstract_surface; + return surface->height; +} + +VGImageFormat +cairo_vg_surface_get_format (cairo_surface_t *abstract_surface) +{ + cairo_vg_surface_t *surface; + + if (abstract_surface->backend != &cairo_vg_surface_backend) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + surface = (cairo_vg_surface_t *) abstract_surface; + return surface->format; +} + +/* GL specific context support :-( + * + * OpenVG like cairo defers creation of surface (and the necessary + * paraphernalia to the application. + */ + +static const cairo_vg_context_t _vg_context_nil = { + CAIRO_STATUS_NO_MEMORY, + CAIRO_REFERENCE_COUNT_INVALID +}; + +static const cairo_vg_context_t _vg_context_nil_invalid_visual = { + CAIRO_STATUS_INVALID_VISUAL, + CAIRO_REFERENCE_COUNT_INVALID +}; + +#if CAIRO_HAS_GLX_FUNCTIONS +#include <GL/glx.h> + +static cairo_status_t +glx_create_target (cairo_vg_context_t *context, + cairo_vg_surface_t *surface) +{ + /* XXX hmm, magic required for creating an FBO points to VGImage! */ + return CAIRO_INT_STATUS_UNSUPPORTED; +} + +static cairo_status_t +glx_set_target (cairo_vg_context_t *context, + cairo_vg_surface_t *surface) +{ +#if 0 + glXMakeContextCurrent (context->display, + (GLXDrawable) surface->target_id, + (GLXDrawable) surface->target_id, + context->context); +#else + return CAIRO_INT_STATUS_UNSUPPORTED; +#endif +} + +static void +glx_destroy_target (cairo_vg_context_t *context, + cairo_vg_surface_t *surface) +{ +} + +cairo_vg_context_t * +cairo_vg_context_create_for_glx (Display *dpy, GLXContext ctx) +{ + cairo_vg_context_t *context; + cairo_status_t status; + + context = malloc (sizeof (*context)); + if (unlikely (context == NULL)) + return (cairo_vg_context_t *) &_vg_context_nil; + + context->display = dpy; + context->context = ctx; + + context->create_target = glx_create_target; + context->set_target = glx_set_target; + context->destroy_target = glx_destroy_target; + + status = _vg_context_init (context); + if (unlikely (status)) { + free (context); + return (cairo_vg_context_t *) &_vg_context_nil; + } + + return context; +} +#endif + +#if CAIRO_HAS_EGL_FUNCTIONS +static cairo_status_t +egl_create_target (cairo_vg_context_t *context, + cairo_vg_surface_t *surface) +{ + EGLSurface *egl_surface; +#define RED 1 +#define GREEN 3 +#define BLUE 5 +#define ALPHA 7 + int attribs[] = { + EGL_RED_SIZE, 0, + EGL_GREEN_SIZE, 0, + EGL_BLUE_SIZE, 0, + EGL_ALPHA_SIZE, 0, + EGL_SURFACE_TYPE, EGL_PBUFFER_BIT, + EGL_RENDERABLE_TYPE, EGL_OPENVG_BIT, + EGL_NONE + }; + pixman_format_code_t pixman_format; + EGLConfig config; + int num_configs = 0; + cairo_bool_t needs_premultiply; + + pixman_format = _vg_format_to_pixman (surface->format, &needs_premultiply); + if (pixman_format == 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* XXX no control over pixel ordering! */ + attribs[RED] = PIXMAN_FORMAT_R (pixman_format); + attribs[GREEN] = PIXMAN_FORMAT_G (pixman_format); + attribs[BLUE] = PIXMAN_FORMAT_B (pixman_format); + attribs[ALPHA] = PIXMAN_FORMAT_A (pixman_format); + + if (! eglChooseConfig (context->display, + attribs, + &config, 1, &num_configs) || + num_configs != 1) + { + fprintf(stderr, "Error: eglChooseConfig() failed.\n"); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + egl_surface = + eglCreatePbufferFromClientBuffer (context->display, + EGL_OPENVG_IMAGE, + (EGLClientBuffer) surface->image, + config, + NULL); + surface->target_id = (unsigned long) egl_surface; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +egl_set_target (cairo_vg_context_t *context, + cairo_vg_surface_t *surface) +{ + if (! eglMakeCurrent (context->display, + (EGLSurface *) surface->target_id, + (EGLSurface *) surface->target_id, + context->context)) + { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +egl_destroy_target (cairo_vg_context_t *context, + cairo_vg_surface_t *surface) +{ + eglDestroySurface (context->display, + (EGLSurface *) surface->target_id); +} + +cairo_vg_context_t * +cairo_vg_context_create_for_egl (EGLDisplay egl_display, + EGLContext egl_context) +{ + cairo_vg_context_t *context; + cairo_status_t status; + + context = malloc (sizeof (*context)); + if (unlikely (context == NULL)) + return (cairo_vg_context_t *) &_vg_context_nil; + + status = _vg_context_init (context); + if (unlikely (status)) { + free (context); + return (cairo_vg_context_t *) &_vg_context_nil; + } + + context->display = egl_display; + context->context = egl_context; + + context->create_target = egl_create_target; + context->set_target = egl_set_target; + context->destroy_target = egl_destroy_target; + + return context; +} +#endif + +cairo_status_t +cairo_vg_context_status (cairo_vg_context_t *context) +{ + return context->status; +} + +void +cairo_vg_context_destroy (cairo_vg_context_t *context) +{ + if (context == NULL || CAIRO_REFERENCE_COUNT_IS_INVALID (&context->ref_count)) + return; + + _vg_context_destroy (context); +} diff --git a/src/cairo-vg.h b/src/cairo-vg.h new file mode 100644 index 000000000..98392fc2d --- /dev/null +++ b/src/cairo-vg.h @@ -0,0 +1,103 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2007 * Mozilla Corporation + * Copyright © 2009 Chris Wilson + * + * 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 Mozilla Corporation. + * + * Contributor(s): + * Vladimir Vukicevic <vladimir@mozilla.com> + * Chris Wilson <chris@chris-wilson.co.uk> + */ + +#ifndef CAIRO_VG_H +#define CAIRO_VG_H + +#include "cairo.h" + +#if CAIRO_HAS_VG_SURFACE + +#include <VG/openvg.h> + +CAIRO_BEGIN_DECLS + +typedef struct _cairo_vg_context cairo_vg_context_t; + +#if CAIRO_HAS_GLX_FUNCTIONS +typedef struct __GLXcontextRec *GLXContext; +typedef struct _XDisplay Display; + +cairo_public cairo_vg_context_t * +cairo_vg_context_create_for_glx (Display *dpy, + GLXContext ctx); +#endif + +#if CAIRO_HAS_EGL_FUNCTIONS +#include <EGL/egl.h> + +cairo_public cairo_vg_context_t * +cairo_vg_context_create_for_egl (EGLDisplay egl_display, + EGLContext egl_context); +#endif + +cairo_public cairo_status_t +cairo_vg_context_status (cairo_vg_context_t *context); + +cairo_public void +cairo_vg_context_destroy (cairo_vg_context_t *context); + +cairo_public cairo_surface_t * +cairo_vg_surface_create (cairo_vg_context_t *context, + cairo_content_t content, int width, int height); + +cairo_public cairo_surface_t * +cairo_vg_surface_create_for_image (cairo_vg_context_t *context, + VGImage image, + VGImageFormat format, + int width, int height); + +cairo_public VGImage +cairo_vg_surface_get_image (cairo_surface_t *abstract_surface); + +cairo_public VGImageFormat +cairo_vg_surface_get_format (cairo_surface_t *abstract_surface); + +cairo_public int +cairo_vg_surface_get_height (cairo_surface_t *abstract_surface); + +cairo_public int +cairo_vg_surface_get_width (cairo_surface_t *abstract_surface); + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_VG_SURFACE*/ +# error Cairo was not compiled with support for the OpenVG backend +#endif /* CAIRO_HAS_VG_SURFACE*/ + +#endif /* CAIRO_VG_H */ diff --git a/src/cairo.h b/src/cairo.h index 8cfcf5fd7..48ecc37b8 100644 --- a/src/cairo.h +++ b/src/cairo.h @@ -1942,6 +1942,7 @@ cairo_surface_status (cairo_surface_t *surface); * @CAIRO_SURFACE_TYPE_SCRIPT: The surface is of type script, since 1.10 * @CAIRO_SURFACE_TYPE_QT: The surface is of type Qt, since 1.10 * @CAIRO_SURFACE_TYPE_META: The surface is a meta-type, since 1.10 + * @CAIRO_SURFACE_TYPE_VG: The surface is a OpenVG surface, since 1.10 * * #cairo_surface_type_t is used to describe the type of a given * surface. The surface types are also known as "backends" or "surface @@ -1983,7 +1984,8 @@ typedef enum _cairo_surface_type { CAIRO_SURFACE_TYPE_QUARTZ_IMAGE, CAIRO_SURFACE_TYPE_SCRIPT, CAIRO_SURFACE_TYPE_QT, - CAIRO_SURFACE_TYPE_META + CAIRO_SURFACE_TYPE_META, + CAIRO_SURFACE_TYPE_VG } cairo_surface_type_t; cairo_public cairo_surface_type_t diff --git a/test/cairo-test.c b/test/cairo-test.c index 26e7a1505..b5d098de7 100644 --- a/test/cairo-test.c +++ b/test/cairo-test.c @@ -855,7 +855,8 @@ REPEAT: if (cairo_surface_status (surface)) { MF (MEMFAULT_PRINT_FAULTS ()); - cairo_test_log (ctx, "Error: Created an error surface\n"); + cairo_test_log (ctx, "Error: Created an error surface: %s\n", + cairo_status_to_string (cairo_surface_status (surface))); ret = CAIRO_TEST_FAILURE; goto UNWIND_STRINGS; } diff --git a/test/get-clip.c b/test/get-clip.c index c7414b4ac..5232a0e00 100644 --- a/test/get-clip.c +++ b/test/get-clip.c @@ -141,6 +141,7 @@ draw (cairo_t *cr, int width, int height) case CAIRO_SURFACE_TYPE_SCRIPT: case CAIRO_SURFACE_TYPE_QT: case CAIRO_SURFACE_TYPE_META: + case CAIRO_SURFACE_TYPE_VG: default: uses_clip_rects = FALSE; break; diff --git a/util/cairo-trace/trace.c b/util/cairo-trace/trace.c index 26e0d02b2..3af1fffd3 100644 --- a/util/cairo-trace/trace.c +++ b/util/cairo-trace/trace.c @@ -4357,3 +4357,73 @@ cairo_meta_surface_replay (cairo_surface_t *meta, cairo_surface_t *target) return ret; } + +#if CAIRO_HAS_VG_SURFACE +#include <cairo-vg.h> +cairo_surface_t * +cairo_vg_surface_create (cairo_vg_context_t *context, + cairo_content_t content, + int width, int height) +{ + cairo_surface_t *ret; + long surface_id; + + ret = DLCALL (cairo_vg_surface_create, context, content, width, height); + surface_id = _create_surface_id (ret); + + _emit_line_info (); + if (_write_lock ()) { + _trace_printf ("dict\n" + " /type /vg set\n" + " /content //%s set\n" + " /width %d set\n" + " /height %d set\n" + " surface dup /s%ld exch def\n", + _content_to_string (content), + width, height, + surface_id); + _surface_object_set_size (ret, width, height); + _get_object (SURFACE, ret)->defined = true; + _push_operand (SURFACE, ret); + _write_unlock (); + } + + return ret; +} + +cairo_surface_t * +cairo_vg_surface_create_for_image (cairo_vg_context_t *context, + VGImage image, + VGImageFormat format, + int width, int height) +{ + cairo_surface_t *ret; + long surface_id; + + ret = DLCALL (cairo_vg_surface_create_for_image, + context, image, format, width, height); + surface_id = _create_surface_id (ret); + + _emit_line_info (); + if (_write_lock ()) { + cairo_content_t content; + + content = DLCALL (cairo_surface_get_content, ret); + _trace_printf ("dict\n" + " /type /vg set\n" + " /content //%s set\n" + " /width %d set\n" + " /height %d set\n" + " surface dup /s%ld exch def\n", + _content_to_string (content), + width, height, + surface_id); + _surface_object_set_size (ret, width, height); + _get_object (SURFACE, ret)->defined = true; + _push_operand (SURFACE, ret); + _write_unlock (); + } + + return ret; +} +#endif |