136 lines
4.3 KiB
C
136 lines
4.3 KiB
C
/*
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* QEMU SDL display driver
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/* Ported SDL 1.2 code to 2.0 by Dave Airlie. */
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/* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
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#undef WIN32_LEAN_AND_MEAN
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#include <SDL.h>
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#include <SDL_syswm.h>
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#include "qemu-common.h"
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#include "ui/console.h"
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#include "ui/input.h"
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#include "ui/sdl2.h"
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#include "sysemu/sysemu.h"
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void sdl2_2d_update(DisplayChangeListener *dcl,
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int x, int y, int w, int h)
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{
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struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
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DisplaySurface *surf = qemu_console_surface(dcl->con);
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SDL_Rect rect;
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if (!surf) {
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return;
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}
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if (!scon->texture) {
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return;
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}
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rect.x = x;
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rect.y = y;
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rect.w = w;
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rect.h = h;
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SDL_UpdateTexture(scon->texture, NULL, surface_data(surf),
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surface_stride(surf));
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SDL_RenderCopy(scon->real_renderer, scon->texture, &rect, &rect);
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SDL_RenderPresent(scon->real_renderer);
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}
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void sdl2_2d_switch(DisplayChangeListener *dcl,
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DisplaySurface *new_surface)
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{
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struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
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DisplaySurface *old_surface = scon->surface;
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int format = 0;
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scon->surface = new_surface;
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if (scon->texture) {
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SDL_DestroyTexture(scon->texture);
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scon->texture = NULL;
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}
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if (!new_surface) {
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sdl2_window_destroy(scon);
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return;
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}
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if (!scon->real_window) {
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sdl2_window_create(scon);
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} else if (old_surface &&
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((surface_width(old_surface) != surface_width(new_surface)) ||
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(surface_height(old_surface) != surface_height(new_surface)))) {
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sdl2_window_resize(scon);
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}
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SDL_RenderSetLogicalSize(scon->real_renderer,
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surface_width(new_surface),
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surface_height(new_surface));
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if (surface_bits_per_pixel(scon->surface) == 16) {
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format = SDL_PIXELFORMAT_RGB565;
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} else if (surface_bits_per_pixel(scon->surface) == 32) {
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format = SDL_PIXELFORMAT_ARGB8888;
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}
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scon->texture = SDL_CreateTexture(scon->real_renderer, format,
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SDL_TEXTUREACCESS_STREAMING,
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surface_width(new_surface),
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surface_height(new_surface));
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sdl2_2d_redraw(scon);
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}
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void sdl2_2d_refresh(DisplayChangeListener *dcl)
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{
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struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
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graphic_hw_update(dcl->con);
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sdl2_poll_events(scon);
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}
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void sdl2_2d_redraw(struct sdl2_console *scon)
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{
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if (!scon->surface) {
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return;
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}
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sdl2_2d_update(&scon->dcl, 0, 0,
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surface_width(scon->surface),
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surface_height(scon->surface));
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}
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bool sdl2_2d_check_format(DisplayChangeListener *dcl,
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pixman_format_code_t format)
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{
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/*
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* We let SDL convert for us a few more formats than,
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* the native ones. Thes are the ones I have tested.
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*/
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return (format == PIXMAN_x8r8g8b8 ||
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format == PIXMAN_b8g8r8x8 ||
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format == PIXMAN_x1r5g5b5 ||
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format == PIXMAN_r5g6b5);
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}
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