155 lines
3.9 KiB
C
155 lines
3.9 KiB
C
/*******************************************************************************
|
|
|
|
Copyright(C) Jonas 'Sortie' Termansen 2012.
|
|
|
|
This file is part of dispd.
|
|
|
|
dispd is free software: you can redistribute it and/or modify it under the
|
|
terms of the GNU Lesser General Public License as published by the Free
|
|
Software Foundation, either version 3 of the License, or (at your option)
|
|
any later version.
|
|
|
|
dispd 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 Lesser General Public License for more
|
|
details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with dispd. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
window.c
|
|
Handles windows.
|
|
|
|
*******************************************************************************/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/display.h>
|
|
|
|
#include <fcntl.h>
|
|
#include <ioleast.h>
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include <dispd.h>
|
|
|
|
#include "framebuffer.h"
|
|
#include "session.h"
|
|
#include "window.h"
|
|
|
|
struct dispd_window* dispd_create_window_game_rgba(struct dispd_session* session)
|
|
{
|
|
if ( session->current_window )
|
|
return NULL;
|
|
if ( !session->is_rgba )
|
|
return NULL;
|
|
size_t size = sizeof(struct dispd_window);
|
|
struct dispd_window* window = (struct dispd_window*) malloc(size);
|
|
if ( !window )
|
|
return NULL;
|
|
memset(window, 0, sizeof(*window));
|
|
window->session = session;
|
|
return session->current_window = window;
|
|
}
|
|
|
|
bool dispd_destroy_window(struct dispd_window* window)
|
|
{
|
|
free(window->cached_buffer);
|
|
free(window);
|
|
return true;
|
|
}
|
|
|
|
static uint8_t* request_buffer(struct dispd_window* window, size_t size)
|
|
{
|
|
if ( window->cached_buffer )
|
|
{
|
|
if ( window->cached_buffer_size == size )
|
|
{
|
|
uint8_t* ret = window->cached_buffer;
|
|
window->cached_buffer = NULL;
|
|
window->cached_buffer_size = 0;
|
|
return ret;
|
|
}
|
|
free(window->cached_buffer);
|
|
window->cached_buffer = NULL;
|
|
window->cached_buffer_size = 0;
|
|
}
|
|
return (uint8_t*) malloc(size);
|
|
}
|
|
|
|
static void return_buffer(struct dispd_window* window, uint8_t* b, size_t size)
|
|
{
|
|
free(window->cached_buffer);
|
|
window->cached_buffer = b;
|
|
window->cached_buffer_size = size;
|
|
}
|
|
|
|
struct dispd_framebuffer* dispd_begin_render(struct dispd_window* window)
|
|
{
|
|
struct dispmsg_get_crtc_mode msg;
|
|
msg.msgid = DISPMSG_GET_CRTC_MODE;
|
|
msg.device = window->session->device;
|
|
msg.connector = window->session->connector;
|
|
if ( dispmsg_issue(&msg, sizeof(msg)) != 0 )
|
|
return NULL;
|
|
size_t size = sizeof(struct dispd_framebuffer);
|
|
struct dispd_framebuffer* fb = (struct dispd_framebuffer*) malloc(size);
|
|
if ( !fb )
|
|
return NULL;
|
|
memset(fb, 0, sizeof(*fb));
|
|
fb->window = window;
|
|
fb->width = msg.mode.view_xres;
|
|
fb->height = msg.mode.view_yres;
|
|
fb->bpp = 32;
|
|
fb->pitch = fb->width * fb->bpp / 8;
|
|
fb->datasize = fb->pitch * fb->height;
|
|
fb->data = (uint8_t*) request_buffer(window, fb->datasize);
|
|
if ( !fb->data ) { free(fb); return NULL; }
|
|
return fb;
|
|
}
|
|
|
|
bool dispd_finish_render(struct dispd_framebuffer* fb)
|
|
{
|
|
struct dispd_window* window = fb->window;
|
|
bool ret = false;
|
|
struct dispmsg_write_memory msg;
|
|
msg.msgid = DISPMSG_WRITE_MEMORY;
|
|
msg.device = window->session->device;
|
|
msg.offset = 0;
|
|
msg.size = fb->datasize;
|
|
msg.src = fb->data;
|
|
if ( dispmsg_issue(&msg, sizeof(msg)) == 0 )
|
|
ret = true;
|
|
return_buffer(window, fb->data, fb->datasize);
|
|
free(fb);
|
|
return ret;
|
|
}
|
|
|
|
uint8_t* dispd_get_framebuffer_data(struct dispd_framebuffer* fb)
|
|
{
|
|
return fb->data;
|
|
}
|
|
|
|
size_t dispd_get_framebuffer_pitch(struct dispd_framebuffer* fb)
|
|
{
|
|
return fb->pitch;
|
|
}
|
|
|
|
int dispd_get_framebuffer_format(struct dispd_framebuffer* fb)
|
|
{
|
|
return fb->bpp;
|
|
}
|
|
|
|
int dispd_get_framebuffer_height(struct dispd_framebuffer* fb)
|
|
{
|
|
return fb->height;
|
|
}
|
|
|
|
int dispd_get_framebuffer_width(struct dispd_framebuffer* fb)
|
|
{
|
|
return fb->width;
|
|
}
|