src/noop-renderer.c

   1 /*
   2  * Copyright © 2012 Intel Corporation
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and
   5  * its documentation for any purpose is hereby granted without fee, provided
   6  * that the above copyright notice appear in all copies and that both that
   7  * copyright notice and this permission notice appear in supporting
   8  * documentation, and that the name of the copyright holders not be used in
   9  * advertising or publicity pertaining to distribution of the software
  10  * without specific, written prior permission.  The copyright holders make
  11  * no representations about the suitability of this software for any
  12  * purpose.  It is provided "as is" without express or implied warranty.
  13  *
  14  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
  15  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  16  * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
  17  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  18  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
  19  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  20  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  21  */
  22
  23 #define _GNU_SOURCE
  24
  25 #include <stdlib.h>
  26
  27 #include "compositor.h"
  28
  29 static int
  30 noop_renderer_read_pixels(struct weston_output *output,
  31                                pixman_format_code_t format, void *pixels,
  32                                uint32_t x, uint32_t y,
  33                                uint32_t width, uint32_t height)
  34 {
  35         return 0;
  36 }
  37
  38 static void
  39 noop_renderer_repaint_output(struct weston_output *output,
  40                              pixman_region32_t *output_damage)
  41 {
  42 }
  43
  44 static void
  45 noop_renderer_flush_damage(struct weston_surface *surface)
  46 {
  47 }
  48
  49 static void
  50 noop_renderer_attach(struct weston_surface *es, struct wl_buffer *buffer)
  51 {
  52 }
  53
  54 static int
  55 noop_renderer_create_surface(struct weston_surface *surface)
  56 {
  57         return 0;
  58 }
  59
  60 static void
  61 noop_renderer_surface_set_color(struct weston_surface *surface,
  62                  float red, float green, float blue, float alpha)
  63 {
  64 }
  65
  66 static void
  67 noop_renderer_destroy_surface(struct weston_surface *surface)
  68 {
  69 }
  70
  71 static void
  72 noop_renderer_destroy(struct weston_compositor *ec)
  73 {
  74         free(ec->renderer);
  75         ec->renderer = NULL;
  76 }
  77
  78 WL_EXPORT int
  79 noop_renderer_init(struct weston_compositor *ec)
  80 {
  81         struct weston_renderer *renderer;
  82
  83         renderer = malloc(sizeof *renderer);
  84         if (renderer == NULL)
  85                 return -1;
  86
  87         renderer->read_pixels = noop_renderer_read_pixels;
  88         renderer->repaint_output = noop_renderer_repaint_output;
  89         renderer->flush_damage = noop_renderer_flush_damage;
  90         renderer->attach = noop_renderer_attach;
  91         renderer->create_surface = noop_renderer_create_surface;
  92         renderer->surface_set_color = noop_renderer_surface_set_color;
  93         renderer->destroy_surface = noop_renderer_destroy_surface;
  94         renderer->destroy = noop_renderer_destroy;
  95         ec->renderer = renderer;
  96
  97         return 0;
  98 }