Kristian Høgsberg
14 years ago
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98ffc93b95
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3d5bae0700
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/*
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* Copyright © 2010 Kristian Høgsberg |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software Foundation, |
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <sys/mman.h> |
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#include <unistd.h> |
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#include "compositor.h" |
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static void |
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destroy_buffer(struct wl_resource *resource, struct wl_client *client) |
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{ |
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struct wlsc_shm_buffer *buffer = |
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container_of(resource, struct wlsc_shm_buffer, base.base); |
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munmap(buffer->data, buffer->stride * buffer->base.height); |
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free(buffer); |
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} |
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static void |
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buffer_destroy(struct wl_client *client, struct wl_buffer *buffer) |
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{ |
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// wl_resource_destroy(&buffer->base, client);
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} |
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const static struct wl_buffer_interface buffer_interface = { |
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buffer_destroy |
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}; |
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static void |
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shm_buffer_attach(struct wl_buffer *buffer_base, struct wl_surface *surface) |
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{ |
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struct wlsc_surface *es = (struct wlsc_surface *) surface; |
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struct wlsc_shm_buffer *buffer = |
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(struct wlsc_shm_buffer *) buffer_base; |
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glBindTexture(GL_TEXTURE_2D, es->texture); |
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, |
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buffer->base.width, buffer->base.height, 0, |
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GL_RGBA, GL_UNSIGNED_BYTE, buffer->data); |
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es->visual = buffer->base.visual; |
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} |
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static void |
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shm_buffer_damage(struct wl_buffer *buffer_base, |
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struct wl_surface *surface, |
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int32_t x, int32_t y, int32_t width, int32_t height) |
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{ |
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struct wlsc_surface *es = (struct wlsc_surface *) surface; |
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struct wlsc_shm_buffer *buffer = |
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(struct wlsc_shm_buffer *) buffer_base; |
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glBindTexture(GL_TEXTURE_2D, es->texture); |
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, |
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buffer->base.width, buffer->base.height, 0, |
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GL_RGBA, GL_UNSIGNED_BYTE, buffer->data); |
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/* Hmm, should use glTexSubImage2D() here but GLES2 doesn't
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* support any unpack attributes except GL_UNPACK_ALIGNMENT. */ |
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} |
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static void |
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shm_create_buffer(struct wl_client *client, struct wl_shm *shm, |
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uint32_t id, int fd, int32_t width, int32_t height, |
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uint32_t stride, struct wl_visual *visual) |
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{ |
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struct wlsc_compositor *compositor = |
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container_of((struct wlsc_shm *) shm, |
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struct wlsc_compositor, shm); |
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struct wlsc_shm_buffer *buffer; |
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if (visual != &compositor->argb_visual && |
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visual != &compositor->premultiplied_argb_visual && |
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visual != &compositor->rgb_visual) { |
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/* FIXME: Define a real exception event instead of
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* abusing this one */ |
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wl_client_post_event(client, |
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(struct wl_object *) compositor->wl_display, |
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WL_DISPLAY_INVALID_OBJECT, 0); |
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fprintf(stderr, "invalid visual in create_buffer\n"); |
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close(fd); |
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return; |
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} |
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buffer = malloc(sizeof *buffer); |
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if (buffer == NULL) { |
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close(fd); |
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wl_client_post_no_memory(client); |
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return; |
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} |
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buffer->base.compositor = (struct wl_compositor *) compositor; |
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buffer->base.width = width; |
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buffer->base.height = height; |
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buffer->base.visual = visual; |
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buffer->base.attach = shm_buffer_attach; |
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buffer->base.damage = shm_buffer_damage; |
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buffer->stride = stride; |
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buffer->data = |
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mmap(NULL, stride * height, PROT_READ, MAP_SHARED, fd, 0); |
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close(fd); |
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if (buffer->data == MAP_FAILED) { |
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/* FIXME: Define a real exception event instead of
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* abusing this one */ |
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free(buffer); |
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wl_client_post_event(client, |
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(struct wl_object *) compositor->wl_display, |
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WL_DISPLAY_INVALID_OBJECT, 0); |
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fprintf(stderr, "failed to create image for fd %d\n", fd); |
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return; |
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} |
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buffer->base.base.base.id = id; |
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buffer->base.base.base.interface = &wl_buffer_interface; |
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buffer->base.base.base.implementation = (void (**)(void)) |
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&buffer_interface; |
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buffer->base.base.destroy = destroy_buffer; |
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wl_client_add_resource(client, &buffer->base.base); |
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} |
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const static struct wl_shm_interface shm_interface = { |
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shm_create_buffer |
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}; |
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int |
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wlsc_shm_init(struct wlsc_compositor *ec) |
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{ |
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struct wlsc_shm *shm = &ec->shm; |
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shm->base.interface = &wl_shm_interface; |
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shm->base.implementation = (void (**)(void)) &shm_interface; |
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wl_display_add_object(ec->wl_display, &shm->base); |
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wl_display_add_global(ec->wl_display, &shm->base, NULL); |
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return 0; |
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} |
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