0b71a5d5ca
Add new sdl2-gl.c file, with display rendering functions using opengl. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/*
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* QEMU SDL display driver -- opengl support
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*
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* Copyright (c) 2014 Red Hat
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*
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* Authors:
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* Gerd Hoffmann <kraxel@redhat.com>
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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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#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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static void sdl2_gl_render_surface(struct sdl2_console *scon)
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{
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int ww, wh;
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SDL_GL_MakeCurrent(scon->real_window, scon->winctx);
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SDL_GetWindowSize(scon->real_window, &ww, &wh);
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surface_gl_setup_viewport(scon->gls, scon->surface, ww, wh);
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surface_gl_render_texture(scon->gls, scon->surface);
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SDL_GL_SwapWindow(scon->real_window);
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}
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void sdl2_gl_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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assert(scon->opengl);
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SDL_GL_MakeCurrent(scon->real_window, scon->winctx);
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surface_gl_update_texture(scon->gls, scon->surface, x, y, w, h);
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scon->updates++;
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}
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void sdl2_gl_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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assert(scon->opengl);
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SDL_GL_MakeCurrent(scon->real_window, scon->winctx);
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surface_gl_destroy_texture(scon->gls, scon->surface);
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scon->surface = new_surface;
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if (!new_surface) {
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console_gl_fini_context(scon->gls);
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scon->gls = NULL;
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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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scon->gls = console_gl_init_context();
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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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surface_gl_create_texture(scon->gls, scon->surface);
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}
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void sdl2_gl_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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assert(scon->opengl);
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graphic_hw_update(dcl->con);
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if (scon->updates && scon->surface) {
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scon->updates = 0;
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sdl2_gl_render_surface(scon);
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}
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sdl2_poll_events(scon);
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}
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void sdl2_gl_redraw(struct sdl2_console *scon)
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{
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assert(scon->opengl);
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if (scon->surface) {
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sdl2_gl_render_surface(scon);
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}
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}
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