I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. Permission to use, copy, modify, and 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. THE 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.
150 lines
3.8 KiB
C
150 lines
3.8 KiB
C
/*
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* Copyright (c) 2012 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* window.c
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* Handles windows.
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*/
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#include <sys/types.h>
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#include <sys/display.h>
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#include <fcntl.h>
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#include <ioleast.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <dispd.h>
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#include "framebuffer.h"
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#include "session.h"
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#include "window.h"
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struct dispd_window* dispd_create_window_game_rgba(struct dispd_session* session)
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{
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if ( session->current_window )
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return NULL;
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if ( !session->is_rgba )
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return NULL;
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size_t size = sizeof(struct dispd_window);
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struct dispd_window* window = (struct dispd_window*) malloc(size);
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if ( !window )
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return NULL;
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memset(window, 0, sizeof(*window));
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window->session = session;
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return session->current_window = window;
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}
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bool dispd_destroy_window(struct dispd_window* window)
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{
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free(window->cached_buffer);
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free(window);
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return true;
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}
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static uint8_t* request_buffer(struct dispd_window* window, size_t size)
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{
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if ( window->cached_buffer )
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{
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if ( window->cached_buffer_size == size )
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{
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uint8_t* ret = window->cached_buffer;
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window->cached_buffer = NULL;
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window->cached_buffer_size = 0;
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return ret;
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}
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free(window->cached_buffer);
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window->cached_buffer = NULL;
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window->cached_buffer_size = 0;
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}
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return (uint8_t*) malloc(size);
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}
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static void return_buffer(struct dispd_window* window, uint8_t* b, size_t size)
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{
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free(window->cached_buffer);
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window->cached_buffer = b;
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window->cached_buffer_size = size;
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}
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struct dispd_framebuffer* dispd_begin_render(struct dispd_window* window)
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{
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struct dispmsg_get_crtc_mode msg;
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msg.msgid = DISPMSG_GET_CRTC_MODE;
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msg.device = window->session->device;
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msg.connector = window->session->connector;
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if ( dispmsg_issue(&msg, sizeof(msg)) != 0 )
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return NULL;
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size_t size = sizeof(struct dispd_framebuffer);
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struct dispd_framebuffer* fb = (struct dispd_framebuffer*) malloc(size);
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if ( !fb )
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return NULL;
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memset(fb, 0, sizeof(*fb));
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fb->window = window;
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fb->width = msg.mode.view_xres;
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fb->height = msg.mode.view_yres;
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fb->bpp = 32;
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fb->pitch = fb->width * fb->bpp / 8;
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fb->datasize = fb->pitch * fb->height;
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fb->data = (uint8_t*) request_buffer(window, fb->datasize);
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if ( !fb->data ) { free(fb); return NULL; }
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return fb;
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}
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bool dispd_finish_render(struct dispd_framebuffer* fb)
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{
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struct dispd_window* window = fb->window;
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bool ret = false;
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struct dispmsg_write_memory msg;
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msg.msgid = DISPMSG_WRITE_MEMORY;
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msg.device = window->session->device;
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msg.offset = 0;
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msg.size = fb->datasize;
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msg.src = fb->data;
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if ( dispmsg_issue(&msg, sizeof(msg)) == 0 )
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ret = true;
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return_buffer(window, fb->data, fb->datasize);
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free(fb);
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return ret;
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}
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uint8_t* dispd_get_framebuffer_data(struct dispd_framebuffer* fb)
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{
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return fb->data;
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}
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size_t dispd_get_framebuffer_pitch(struct dispd_framebuffer* fb)
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{
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return fb->pitch;
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}
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int dispd_get_framebuffer_format(struct dispd_framebuffer* fb)
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{
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return fb->bpp;
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}
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int dispd_get_framebuffer_height(struct dispd_framebuffer* fb)
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{
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return fb->height;
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}
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int dispd_get_framebuffer_width(struct dispd_framebuffer* fb)
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{
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return fb->width;
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}
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