diff options
Diffstat (limited to 'pugl/detail/x11_cairo.c')
| -rw-r--r-- | pugl/detail/x11_cairo.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/pugl/detail/x11_cairo.c b/pugl/detail/x11_cairo.c deleted file mode 100644 index 0112c4e..0000000 --- a/pugl/detail/x11_cairo.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - Copyright 2012-2020 David Robillard <d@drobilla.net> - - Permission to use, copy, modify, and/or distribute this software for any - purpose with or without fee is hereby granted, provided that the above - copyright notice and this permission notice appear in all copies. - - THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -*/ - -/** - @file x11_cairo.c - @brief Cairo graphics backend for X11. -*/ - -#include "pugl/detail/types.h" -#include "pugl/detail/x11.h" -#include "pugl/pugl.h" -#include "pugl/pugl_cairo.h" - -#include <X11/Xutil.h> -#include <cairo-xlib.h> -#include <cairo.h> - -#include <stdlib.h> - -typedef struct { - cairo_surface_t* back; - cairo_surface_t* front; - cairo_t* cr; -} PuglX11CairoSurface; - -static void -puglX11CairoClose(PuglView* view) -{ - PuglInternals* const impl = view->impl; - PuglX11CairoSurface* const surface = (PuglX11CairoSurface*)impl->surface; - - cairo_surface_destroy(surface->front); - cairo_surface_destroy(surface->back); - surface->front = surface->back = NULL; -} - -static PuglStatus -puglX11CairoOpen(PuglView* view) -{ - PuglInternals* const impl = view->impl; - PuglX11CairoSurface* const surface = (PuglX11CairoSurface*)impl->surface; - - surface->back = cairo_xlib_surface_create(impl->display, - impl->win, - impl->vi->visual, - (int)view->frame.width, - (int)view->frame.height); - - surface->front = cairo_surface_create_similar( - surface->back, - cairo_surface_get_content(surface->back), - (int)view->frame.width, - (int)view->frame.height); - - if (cairo_surface_status(surface->back) || - cairo_surface_status(surface->front)) { - puglX11CairoClose(view); - return PUGL_CREATE_CONTEXT_FAILED; - } - - return PUGL_SUCCESS; -} - -static PuglStatus -puglX11CairoCreate(PuglView* view) -{ - PuglInternals* const impl = view->impl; - - impl->surface = (cairo_surface_t*)calloc(1, sizeof(PuglX11CairoSurface)); - - return PUGL_SUCCESS; -} - -static PuglStatus -puglX11CairoDestroy(PuglView* view) -{ - PuglInternals* const impl = view->impl; - PuglX11CairoSurface* const surface = (PuglX11CairoSurface*)impl->surface; - - puglX11CairoClose(view); - free(surface); - - return PUGL_SUCCESS; -} - -static PuglStatus -puglX11CairoEnter(PuglView* view, const PuglEventExpose* expose) -{ - PuglInternals* const impl = view->impl; - PuglX11CairoSurface* const surface = (PuglX11CairoSurface*)impl->surface; - PuglStatus st = PUGL_SUCCESS; - - if (expose && !(st = puglX11CairoOpen(view))) { - surface->cr = cairo_create(surface->front); - - if (cairo_status(surface->cr)) { - st = PUGL_CREATE_CONTEXT_FAILED; - } - } - - return st; -} - -static PuglStatus -puglX11CairoLeave(PuglView* view, const PuglEventExpose* expose) -{ - PuglInternals* const impl = view->impl; - PuglX11CairoSurface* const surface = (PuglX11CairoSurface*)impl->surface; - - if (expose) { - // Destroy front context and create a new one for drawing to the back - cairo_destroy(surface->cr); - surface->cr = cairo_create(surface->back); - - // Clip to expose region - cairo_rectangle(surface->cr, - expose->x, - expose->y, - expose->width, - expose->height); - cairo_clip(surface->cr); - - // Paint front onto back - cairo_set_source_surface(surface->cr, surface->front, 0, 0); - cairo_paint(surface->cr); - - // Flush to X and close everything - cairo_destroy(surface->cr); - cairo_surface_flush(surface->back); - puglX11CairoClose(view); - surface->cr = NULL; - } - - return PUGL_SUCCESS; -} - -static void* -puglX11CairoGetContext(PuglView* view) -{ - PuglInternals* const impl = view->impl; - PuglX11CairoSurface* const surface = (PuglX11CairoSurface*)impl->surface; - - return surface->cr; -} - -const PuglBackend* -puglCairoBackend(void) -{ - static const PuglBackend backend = {puglX11StubConfigure, - puglX11CairoCreate, - puglX11CairoDestroy, - puglX11CairoEnter, - puglX11CairoLeave, - puglX11CairoGetContext}; - - return &backend; -} |