Benjamin Franzke
14 years ago
committed by
Kristian Høgsberg
parent
bab41fb70c
commit
315b3dc73b
@ -1,220 +0,0 @@ |
||||
/*
|
||||
* Copyright © 2010 Kristian Høgsberg |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License as published by |
||||
* the Free Software Foundation; either version 2 of the License, or |
||||
* (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software Foundation, |
||||
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
||||
*/ |
||||
|
||||
#include <stdio.h> |
||||
#include <stdlib.h> |
||||
#include <string.h> |
||||
#include <sys/mman.h> |
||||
#include <unistd.h> |
||||
|
||||
#include "compositor.h" |
||||
|
||||
struct wlsc_shm_buffer { |
||||
struct wl_buffer buffer; |
||||
struct wl_list surfaces_attached_to; |
||||
int32_t stride; |
||||
void *data; |
||||
int mapped; |
||||
}; |
||||
|
||||
static void |
||||
destroy_buffer(struct wl_resource *resource, struct wl_client *client) |
||||
{ |
||||
struct wlsc_shm_buffer *buffer = |
||||
container_of(resource, struct wlsc_shm_buffer, buffer.resource); |
||||
struct wlsc_surface *es, *next; |
||||
|
||||
if (buffer->mapped) |
||||
munmap(buffer->data, buffer->stride * buffer->buffer.height); |
||||
else |
||||
free(buffer->data); |
||||
|
||||
wl_list_for_each_safe(es, next, &buffer->surfaces_attached_to, |
||||
buffer_link) { |
||||
es->buffer = NULL; |
||||
wl_list_remove(&es->buffer_link); |
||||
} |
||||
|
||||
free(buffer); |
||||
} |
||||
|
||||
static void |
||||
buffer_damage(struct wl_client *client, struct wl_buffer *buffer_base, |
||||
int32_t x, int32_t y, int32_t width, int32_t height) |
||||
{ |
||||
struct wlsc_shm_buffer *buffer = |
||||
(struct wlsc_shm_buffer *) buffer_base; |
||||
struct wlsc_surface *es; |
||||
|
||||
wl_list_for_each(es, &buffer->surfaces_attached_to, buffer_link) { |
||||
glBindTexture(GL_TEXTURE_2D, es->texture); |
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, |
||||
buffer->buffer.width, buffer->buffer.height, 0, |
||||
GL_BGRA_EXT, GL_UNSIGNED_BYTE, buffer->data); |
||||
/* Hmm, should use glTexSubImage2D() here but GLES2 doesn't
|
||||
* support any unpack attributes except GL_UNPACK_ALIGNMENT. */ |
||||
} |
||||
} |
||||
|
||||
static void |
||||
buffer_destroy(struct wl_client *client, struct wl_buffer *buffer) |
||||
{ |
||||
wl_resource_destroy(&buffer->resource, client); |
||||
} |
||||
|
||||
const static struct wl_buffer_interface buffer_interface = { |
||||
buffer_damage, |
||||
buffer_destroy |
||||
}; |
||||
|
||||
int |
||||
wlsc_is_shm_buffer(struct wl_buffer *buffer) |
||||
{ |
||||
return buffer->resource.object.implementation ==
|
||||
(void (**)(void)) &buffer_interface; |
||||
} |
||||
|
||||
void |
||||
wlsc_shm_buffer_attach(struct wl_buffer *buffer_base, |
||||
struct wl_surface *surface) |
||||
{ |
||||
struct wlsc_surface *es = (struct wlsc_surface *) surface; |
||||
struct wlsc_shm_buffer *buffer = |
||||
(struct wlsc_shm_buffer *) buffer_base; |
||||
|
||||
glBindTexture(GL_TEXTURE_2D, es->texture); |
||||
|
||||
/* Unbind any EGLImage texture that may be bound, so we don't
|
||||
* overwrite it.*/ |
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, |
||||
0, 0, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NULL); |
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, |
||||
buffer->buffer.width, buffer->buffer.height, 0, |
||||
GL_BGRA_EXT, GL_UNSIGNED_BYTE, buffer->data); |
||||
es->visual = buffer->buffer.visual; |
||||
|
||||
if (es->buffer) |
||||
wl_list_remove(&es->buffer_link); |
||||
wl_list_insert(&buffer->surfaces_attached_to, &es->buffer_link); |
||||
} |
||||
|
||||
static struct wlsc_shm_buffer * |
||||
wlsc_shm_buffer_init(struct wlsc_compositor *compositor, |
||||
int32_t width, int32_t height, |
||||
int32_t stride, struct wl_visual *visual, |
||||
void *data) |
||||
{ |
||||
struct wlsc_shm_buffer *buffer; |
||||
|
||||
buffer = malloc(sizeof *buffer); |
||||
if (buffer == NULL) |
||||
return NULL; |
||||
|
||||
buffer->buffer.compositor = &compositor->compositor; |
||||
buffer->buffer.width = width; |
||||
buffer->buffer.height = height; |
||||
buffer->buffer.visual = visual; |
||||
buffer->stride = stride; |
||||
buffer->data = data; |
||||
|
||||
wl_list_init(&buffer->surfaces_attached_to); |
||||
|
||||
buffer->buffer.resource.object.interface = &wl_buffer_interface; |
||||
buffer->buffer.resource.object.implementation = (void (**)(void)) |
||||
&buffer_interface; |
||||
|
||||
buffer->buffer.resource.destroy = destroy_buffer; |
||||
|
||||
return buffer; |
||||
} |
||||
|
||||
static void |
||||
shm_create_buffer(struct wl_client *client, struct wl_shm *shm, |
||||
uint32_t id, int fd, int32_t width, int32_t height, |
||||
uint32_t stride, struct wl_visual *visual) |
||||
{ |
||||
struct wlsc_compositor *compositor = |
||||
container_of((struct wlsc_shm *) shm, |
||||
struct wlsc_compositor, shm); |
||||
struct wlsc_shm_buffer *buffer; |
||||
void *data; |
||||
|
||||
/* FIXME: Define a real exception event instead of abusing the
|
||||
* display.invalid_object error */ |
||||
if (visual->object.interface != &wl_visual_interface) { |
||||
wl_client_post_event(client, |
||||
(struct wl_object *) compositor->wl_display, |
||||
WL_DISPLAY_INVALID_OBJECT, 0); |
||||
fprintf(stderr, "invalid visual in create_buffer\n"); |
||||
close(fd); |
||||
return; |
||||
} |
||||
|
||||
if (width < 0 || height < 0 || stride < width) { |
||||
wl_client_post_event(client, |
||||
(struct wl_object *) compositor->wl_display, |
||||
WL_DISPLAY_INVALID_OBJECT, 0); |
||||
fprintf(stderr, |
||||
"invalid width, height or stride in create_buffer\n"); |
||||
close(fd); |
||||
return; |
||||
} |
||||
|
||||
data = mmap(NULL, stride * height, PROT_READ, MAP_SHARED, fd, 0); |
||||
|
||||
close(fd); |
||||
if (data == MAP_FAILED) { |
||||
/* FIXME: Define a real exception event instead of
|
||||
* abusing this one */ |
||||
wl_client_post_event(client, |
||||
(struct wl_object *) compositor->wl_display, |
||||
WL_DISPLAY_INVALID_OBJECT, 0); |
||||
fprintf(stderr, "failed to create image for fd %d\n", fd); |
||||
return; |
||||
} |
||||
|
||||
buffer = wlsc_shm_buffer_init(compositor, width, height, |
||||
stride, visual, data); |
||||
if (buffer == NULL) { |
||||
munmap(data, stride * height); |
||||
wl_client_post_no_memory(client); |
||||
return; |
||||
} |
||||
buffer->mapped = 1; |
||||
|
||||
buffer->buffer.resource.object.id = id; |
||||
|
||||
wl_client_add_resource(client, &buffer->buffer.resource); |
||||
} |
||||
|
||||
const static struct wl_shm_interface shm_interface = { |
||||
shm_create_buffer |
||||
}; |
||||
|
||||
int |
||||
wlsc_shm_init(struct wlsc_compositor *ec) |
||||
{ |
||||
struct wlsc_shm *shm = &ec->shm; |
||||
|
||||
shm->object.interface = &wl_shm_interface; |
||||
shm->object.implementation = (void (**)(void)) &shm_interface; |
||||
wl_display_add_object(ec->wl_display, &shm->object); |
||||
wl_display_add_global(ec->wl_display, &shm->object, NULL); |
||||
|
||||
return 0; |
||||
} |
||||
Loading…
Reference in new issue