mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-24 08:30:16 +00:00
736 lines
18 KiB
C
736 lines
18 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "SDL.h"
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#include "SDL_syswm.h"
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#include "../driver.h"
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#include <stdlib.h>
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#include <string.h>
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#include "../general.h"
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#include "scaler/scaler.h"
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#include "gfx_common.h"
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#include "gfx_context.h"
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#include "fonts/fonts.h"
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#ifdef HAVE_X11
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#include "context/x11_common.h"
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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typedef struct sdl2_tex
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{
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SDL_Texture *tex;
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int w;
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int h;
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int pitch;
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bool active;
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bool rgb32;
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} sdl2_tex_t;
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typedef struct _sdl2_video
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{
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SDL_Window *window;
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SDL_Renderer *renderer;
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sdl2_tex_t frame;
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sdl2_tex_t menu;
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sdl2_tex_t font;
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bool gl;
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bool quitting;
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void *font_data;
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const font_renderer_driver_t *font_driver;
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uint8_t font_r;
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uint8_t font_g;
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uint8_t font_b;
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struct rarch_viewport vp;
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video_info_t video;
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bool should_resize;
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double rotation;
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} sdl2_video_t;
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static void sdl2_gfx_free(void *data);
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static inline void sdl_tex_zero(sdl2_tex_t *t)
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{
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if (t->tex)
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{
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SDL_DestroyTexture(t->tex);
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}
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t->tex = NULL;
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t->w = t->h = t->pitch = 0;
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}
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static void sdl2_init_font(sdl2_video_t *vid, const char *font_path,
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unsigned font_size)
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{
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if (!g_settings.video.font_enable)
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return;
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if (font_renderer_create_default(&vid->font_driver, &vid->font_data,
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*font_path ? font_path : NULL, font_size))
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{
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int r = g_settings.video.msg_color_r * 255;
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int g = g_settings.video.msg_color_g * 255;
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int b = g_settings.video.msg_color_b * 255;
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r = r < 0 ? 0 : (r > 255 ? 255 : r);
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g = g < 0 ? 0 : (g > 255 ? 255 : g);
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b = b < 0 ? 0 : (b > 255 ? 255 : b);
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vid->font_r = r;
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vid->font_g = g;
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vid->font_b = b;
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}
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else
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{
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RARCH_WARN("[SDL]: Could not initialize fonts.\n");
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return;
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}
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const struct font_atlas *atlas = vid->font_driver->get_atlas(vid->font_data);
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SDL_Surface *tmp = SDL_CreateRGBSurfaceFrom(atlas->buffer, atlas->width,
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atlas->height, 8, atlas->width,
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0, 0, 0, 0);
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SDL_Color colors[256];
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int i;
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for (i = 0; i < 256; ++i)
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{
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colors[i].r = colors[i].g = colors[i].b = i;
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colors[i].a = 255;
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}
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SDL_Palette *pal = SDL_AllocPalette(256);
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SDL_SetPaletteColors(pal, colors, 0, 256);
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SDL_SetSurfacePalette(tmp, pal);
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SDL_SetColorKey(tmp, SDL_TRUE, 0);
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vid->font.tex = SDL_CreateTextureFromSurface(vid->renderer, tmp);
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if (vid->font.tex)
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{
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vid->font.w = atlas->width;
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vid->font.h = atlas->height;
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vid->font.active = true;
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SDL_SetTextureBlendMode(vid->font.tex, SDL_BLENDMODE_ADD);
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}
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else
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RARCH_WARN("[SDL]: Failed to initialize font texture: %s\n", SDL_GetError());
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SDL_FreePalette(pal);
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SDL_FreeSurface(tmp);
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}
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static void sdl2_render_msg(sdl2_video_t *vid, const char *msg)
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{
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unsigned width = vid->vp.width;
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unsigned height = vid->vp.height;
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int x, y, delta_x, delta_y;
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if (!vid->font_data)
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return;
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x = g_settings.video.msg_pos_x * width;
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y = (1.0f - g_settings.video.msg_pos_y) * height;
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delta_x = 0;
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delta_y = 0;
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SDL_SetTextureColorMod(vid->font.tex, vid->font_r, vid->font_g, vid->font_b);
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for (; *msg; msg++)
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{
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const struct font_glyph *gly = vid->font_driver->get_glyph(vid->font_data, (uint8_t)*msg);
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if (!gly)
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gly = vid->font_driver->get_glyph(vid->font_data, '?');
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if (!gly)
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continue;
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int off_x = gly->draw_offset_x;
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int off_y = gly->draw_offset_y;
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int tex_x = gly->atlas_offset_x;
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int tex_y = gly->atlas_offset_y;
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SDL_Rect srcrect = {
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tex_x, tex_y,
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gly->width, gly->height
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};
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SDL_Rect dstrect = {
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x + delta_x + off_x, y + delta_y + off_y,
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gly->width, gly->height
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};
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SDL_RenderCopyEx(vid->renderer, vid->font.tex, &srcrect, &dstrect, 0, NULL, SDL_FLIP_NONE);
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delta_x += gly->advance_x;
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delta_y -= gly->advance_y;
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}
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}
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static void sdl2_gfx_set_handles(sdl2_video_t *vid)
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{
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// SysWMinfo headers are broken on OSX. :(
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#if defined(_WIN32) || defined(HAVE_X11)
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SDL_SysWMinfo info;
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SDL_VERSION(&info.version);
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if (SDL_GetWindowWMInfo(vid->window, &info) == 1)
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{
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#if defined(_WIN32)
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driver.display_type = RARCH_DISPLAY_WIN32;
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driver.video_display = 0;
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driver.video_window = (uintptr_t)info.info.win.window;
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#elif defined(HAVE_X11)
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driver.display_type = RARCH_DISPLAY_X11;
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driver.video_display = (uintptr_t)info.info.x11.display;
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driver.video_window = (uintptr_t)info.info.x11.window;
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#endif
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}
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#endif
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}
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static void sdl2_init_renderer(sdl2_video_t *vid)
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{
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unsigned flags = SDL_RENDERER_ACCELERATED;
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if (vid->video.vsync)
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flags |= SDL_RENDERER_PRESENTVSYNC;
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SDL_ClearHints();
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SDL_SetHintWithPriority(SDL_HINT_RENDER_VSYNC,
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vid->video.vsync ? "1" : "0", SDL_HINT_OVERRIDE);
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vid->renderer = SDL_CreateRenderer(vid->window, -1, flags);
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if (!vid->renderer)
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{
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RARCH_ERR("[SDL]: Failed to initialize renderer: %s", SDL_GetError());
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return;
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}
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SDL_SetRenderDrawColor(vid->renderer, 0, 0, 0, 255);
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}
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static void sdl_refresh_renderer(sdl2_video_t *vid)
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{
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SDL_RenderClear(vid->renderer);
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SDL_Rect r = { vid->vp.x, vid->vp.y, vid->vp.width, vid->vp.height };
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SDL_RenderSetViewport(vid->renderer, &r);
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// breaks int scaling
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// SDL_RenderSetLogicalSize(vid->renderer, vid->vp.width, vid->vp.height);
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}
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static void sdl_refresh_viewport(sdl2_video_t *vid)
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{
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int win_w, win_h;
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SDL_GetWindowSize(vid->window, &win_w, &win_h);
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vid->vp.x = 0;
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vid->vp.y = 0;
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vid->vp.width = win_w;
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vid->vp.height = win_h;
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vid->vp.full_width = win_w;
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vid->vp.full_height = win_h;
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if (g_settings.video.scale_integer)
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gfx_scale_integer(&vid->vp, win_w, win_h, g_extern.system.aspect_ratio,
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vid->video.force_aspect);
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else if (g_settings.video.aspect_ratio_idx == ASPECT_RATIO_CUSTOM)
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{
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const struct rarch_viewport *custom = &g_extern.console.screen.viewports.custom_vp;
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vid->vp.x = custom->x;
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vid->vp.y = custom->y;
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vid->vp.width = custom->width;
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vid->vp.height = custom->height;
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}
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else if (vid->video.force_aspect)
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{
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float delta;
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float device_aspect = (float)win_w / win_h;
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float desired_aspect = g_extern.system.aspect_ratio;
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if (fabsf(device_aspect - desired_aspect) < 0.0001f)
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{
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/* If the aspect ratios of screen and desired aspect ratio are
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* sufficiently equal (floating point stuff), assume they are
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* actually equal. */
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}
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else if (device_aspect > desired_aspect)
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{
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delta = (desired_aspect / device_aspect - 1.0f) / 2.0f + 0.5f;
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vid->vp.x = (int)roundf(win_w * (0.5f - delta));
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vid->vp.width = (unsigned)roundf(2.0f * win_w * delta);
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}
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else
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{
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delta = (device_aspect / desired_aspect - 1.0f) / 2.0f + 0.5f;
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vid->vp.y = (int)roundf(win_h * (0.5f - delta));
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vid->vp.height = (unsigned)roundf(2.0f * win_h * delta);
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}
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}
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vid->should_resize = false;
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sdl_refresh_renderer(vid);
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}
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static void sdl_refresh_input_size(sdl2_video_t *vid, bool menu, bool rgb32,
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unsigned width, unsigned height, unsigned pitch)
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{
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sdl2_tex_t *target = menu ? &vid->menu : &vid->frame;
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if (!target->tex || target->w != width || target->h != height
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|| target->rgb32 != rgb32 || target->pitch != pitch)
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{
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unsigned format;
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sdl_tex_zero(target);
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RARCH_PERFORMANCE_INIT(sdl_create_texture);
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RARCH_PERFORMANCE_START(sdl_create_texture);
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if (menu)
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format = rgb32 ? SDL_PIXELFORMAT_ARGB8888 : SDL_PIXELFORMAT_RGBA4444;
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else /* this assumes the frontend will convert 0RGB1555 to RGB565 */
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format = rgb32 ? SDL_PIXELFORMAT_ARGB8888 : SDL_PIXELFORMAT_RGB565;
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SDL_SetHintWithPriority(SDL_HINT_RENDER_SCALE_QUALITY,
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(vid->video.smooth || menu) ? "linear" : "nearest",
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SDL_HINT_OVERRIDE);
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target->tex = SDL_CreateTexture(vid->renderer, format,
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SDL_TEXTUREACCESS_STREAMING, width, height);
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RARCH_PERFORMANCE_STOP(sdl_create_texture);
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if (!target->tex)
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{
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RARCH_ERR("Failed to create %s texture: %s\n", menu ? "menu" : "main",
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SDL_GetError());
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return;
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}
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if (menu)
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SDL_SetTextureBlendMode(target->tex, SDL_BLENDMODE_BLEND);
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target->w = width;
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target->h = height;
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target->pitch = pitch;
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target->rgb32 = rgb32;
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target->active = true;
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}
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}
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static void *sdl2_gfx_init(const video_info_t *video, const input_driver_t **input, void **input_data)
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{
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#ifdef _WIN32
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gfx_set_dwm();
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#endif
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#ifdef HAVE_X11
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XInitThreads();
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#endif
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int i;
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if (SDL_WasInit(0) == 0)
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{
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if (SDL_Init(SDL_INIT_VIDEO) < 0)
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return NULL;
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}
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else if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
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return NULL;
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sdl2_video_t *vid = (sdl2_video_t*)calloc(1, sizeof(*vid));
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if (!vid)
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return NULL;
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RARCH_LOG("[SDL]: Available renderers (change with $SDL_RENDER_DRIVER):\n");
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for (i = 0; i < SDL_GetNumRenderDrivers(); ++i)
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{
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SDL_RendererInfo renderer;
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if (SDL_GetRenderDriverInfo(i, &renderer) == 0)
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RARCH_LOG("\t%s\n", renderer.name);
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}
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RARCH_LOG("[SDL]: Available displays:\n");
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for(i = 0; i < SDL_GetNumVideoDisplays(); ++i)
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{
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SDL_DisplayMode mode;
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if (SDL_GetCurrentDisplayMode(i, &mode) < 0)
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RARCH_LOG("\tDisplay #%i mode: unknown.\n", i);
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else
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RARCH_LOG("\tDisplay #%i mode: %ix%i@%ihz.\n", i, mode.w, mode.h,
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mode.refresh_rate);
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}
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// void *sdl_input = NULL;
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if (!video->fullscreen)
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RARCH_LOG("[SDL]: Creating window @ %ux%u\n", video->width, video->height);
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unsigned flags;
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if (video->fullscreen)
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{
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flags = g_settings.video.windowed_fullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : SDL_WINDOW_FULLSCREEN;
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}
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else
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flags = SDL_WINDOW_RESIZABLE;
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vid->window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
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video->width, video->height, flags);
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if (!vid->window)
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{
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RARCH_ERR("[SDL]: Failed to init SDL window: %s\n", SDL_GetError());
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goto error;
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}
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vid->video = *video;
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vid->video.smooth = g_settings.video.smooth;
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vid->should_resize = true;
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sdl_tex_zero(&vid->frame);
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sdl_tex_zero(&vid->menu);
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if (video->fullscreen)
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SDL_ShowCursor(SDL_DISABLE);
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sdl2_init_renderer(vid);
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sdl2_init_font(vid, g_settings.video.font_path, g_settings.video.font_size);
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sdl2_gfx_set_handles(vid);
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*input = NULL;
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*input_data = NULL;
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return vid;
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error:
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sdl2_gfx_free(vid);
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return NULL;
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}
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static void check_window(sdl2_video_t *vid)
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{
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SDL_Event event;
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SDL_PumpEvents();
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while (SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_QUIT, SDL_WINDOWEVENT) > 0)
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{
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switch (event.type)
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{
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case SDL_QUIT:
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vid->quitting = true;
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break;
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case SDL_WINDOWEVENT:
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if (event.window.event == SDL_WINDOWEVENT_RESIZED)
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vid->should_resize = true;
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break;
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default:
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break;
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}
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}
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}
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|
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static bool sdl2_gfx_frame(void *data, const void *frame, unsigned width,
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unsigned height, unsigned pitch, const char *msg)
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{
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sdl2_video_t *vid = (sdl2_video_t*)data;
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if (vid->should_resize)
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sdl_refresh_viewport(vid);
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if (frame)
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{
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sdl_refresh_input_size(vid, false, vid->video.rgb32, width, height, pitch);
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RARCH_PERFORMANCE_INIT(sdl_copy_frame);
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RARCH_PERFORMANCE_START(sdl_copy_frame);
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SDL_UpdateTexture(vid->frame.tex, NULL, frame, pitch);
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RARCH_PERFORMANCE_STOP(sdl_copy_frame);
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}
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SDL_RenderCopyEx(vid->renderer, vid->frame.tex, NULL, NULL, vid->rotation, NULL, SDL_FLIP_NONE);
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#ifdef HAVE_MENU
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if (driver.menu_ctx && driver.menu_ctx->frame)
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driver.menu_ctx->frame();
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#endif
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if (vid->menu.active)
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SDL_RenderCopy(vid->renderer, vid->menu.tex, NULL, NULL);
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|
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if (msg)
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sdl2_render_msg(vid, msg);
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SDL_RenderPresent(vid->renderer);
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|
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char buf[128];
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if (gfx_get_fps(buf, sizeof(buf), NULL, 0))
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SDL_SetWindowTitle(vid->window, buf);
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g_extern.frame_count++;
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return true;
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}
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|
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static void sdl2_gfx_set_nonblock_state(void *data, bool toggle)
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{
|
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sdl2_video_t *vid = (sdl2_video_t*)data;
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|
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vid->video.vsync = !toggle;
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sdl_refresh_renderer(vid);
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}
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|
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static bool sdl2_gfx_alive(void *data)
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{
|
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sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
check_window(vid);
|
|
return !vid->quitting;
|
|
}
|
|
|
|
static bool sdl2_gfx_focus(void *data)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
unsigned flags = (SDL_WINDOW_INPUT_FOCUS | SDL_WINDOW_MOUSE_FOCUS);
|
|
return (SDL_GetWindowFlags(vid->window) & flags) == flags;
|
|
}
|
|
|
|
static void sdl2_gfx_free(void *data)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
if (!vid)
|
|
return;
|
|
|
|
if (vid->renderer)
|
|
SDL_DestroyRenderer(vid->renderer);
|
|
|
|
if (vid->window)
|
|
SDL_DestroyWindow(vid->window);
|
|
|
|
SDL_QuitSubSystem(SDL_INIT_VIDEO);
|
|
|
|
if (vid->font_data)
|
|
vid->font_driver->free(vid->font_data);
|
|
|
|
free(vid);
|
|
}
|
|
|
|
static void sdl2_gfx_set_rotation(void *data, unsigned rotation)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
vid->rotation = 270 * rotation;
|
|
}
|
|
|
|
static void sdl2_gfx_viewport_info(void *data, struct rarch_viewport *vp)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
*vp = vid->vp;
|
|
}
|
|
|
|
static bool sdl2_gfx_read_viewport(void *data, uint8_t *buffer)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
|
|
RARCH_PERFORMANCE_INIT(sdl2_gfx_read_viewport);
|
|
RARCH_PERFORMANCE_START(sdl2_gfx_read_viewport);
|
|
|
|
rarch_render_cached_frame();
|
|
|
|
SDL_Surface *surf = SDL_GetWindowSurface(vid->window);
|
|
SDL_Surface *bgr24 = SDL_ConvertSurfaceFormat(surf, SDL_PIXELFORMAT_BGR24, 0);
|
|
|
|
if (!bgr24)
|
|
{
|
|
RARCH_WARN("Failed to convert viewport data to BGR24: %s", SDL_GetError());
|
|
return false;
|
|
}
|
|
|
|
memcpy(buffer, bgr24->pixels, bgr24->h * bgr24->pitch);
|
|
|
|
RARCH_PERFORMANCE_STOP(sdl2_gfx_read_viewport);
|
|
|
|
return true;
|
|
}
|
|
|
|
void sdl2_poke_set_filtering(void *data, unsigned index, bool smooth)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
vid->video.smooth = smooth;
|
|
|
|
// sdl_refresh_renderer(vid);
|
|
|
|
sdl_tex_zero(&vid->frame);
|
|
}
|
|
|
|
static void sdl2_poke_set_aspect_ratio(void *data, unsigned aspectratio_index)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
|
|
switch (aspectratio_index)
|
|
{
|
|
case ASPECT_RATIO_SQUARE:
|
|
gfx_set_square_pixel_viewport(g_extern.system.av_info.geometry.base_width,
|
|
g_extern.system.av_info.geometry.base_height);
|
|
break;
|
|
|
|
case ASPECT_RATIO_CORE:
|
|
gfx_set_core_viewport();
|
|
break;
|
|
|
|
case ASPECT_RATIO_CONFIG:
|
|
gfx_set_config_viewport();
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
g_extern.system.aspect_ratio = aspectratio_lut[aspectratio_index].value;
|
|
|
|
vid->video.force_aspect = true;
|
|
vid->should_resize = true;
|
|
}
|
|
|
|
void sdl2_poke_apply_state_changes(void *data)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
vid->should_resize = true;
|
|
}
|
|
|
|
void sdl2_poke_set_texture_frame(void *data, const void *frame, bool rgb32,
|
|
unsigned width, unsigned height, float alpha)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
|
|
if (frame)
|
|
{
|
|
sdl_refresh_input_size(vid, true, rgb32, width, height,
|
|
width * (rgb32 ? 4 : 2));
|
|
|
|
RARCH_PERFORMANCE_INIT(copy_texture_frame);
|
|
RARCH_PERFORMANCE_START(copy_texture_frame);
|
|
|
|
SDL_UpdateTexture(vid->menu.tex, NULL, frame, vid->menu.pitch);
|
|
|
|
RARCH_PERFORMANCE_STOP(copy_texture_frame);
|
|
}
|
|
}
|
|
|
|
void sdl2_poke_texture_enable(void *data, bool enable, bool full_screen)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
|
|
vid->menu.active = enable;
|
|
}
|
|
|
|
void sdl2_poke_set_osd_msg(void *data, const char *msg, const struct font_params *params)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
sdl2_render_msg(vid, msg);
|
|
fprintf(stderr, "[SDL]: OSD MSG: %s\n", msg);
|
|
}
|
|
|
|
void sdl2_show_mouse(void *data, bool state)
|
|
{
|
|
(void)data;
|
|
SDL_ShowCursor(state);
|
|
}
|
|
|
|
void sdl2_grab_mouse_toggle(void *data)
|
|
{
|
|
sdl2_video_t *vid = (sdl2_video_t*)data;
|
|
SDL_SetWindowGrab(vid->window, SDL_GetWindowGrab(vid->window));
|
|
}
|
|
|
|
static video_poke_interface_t sdl2_video_poke_interface = {
|
|
sdl2_poke_set_filtering,
|
|
#ifdef HAVE_FBO
|
|
NULL,
|
|
NULL,
|
|
#endif
|
|
sdl2_poke_set_aspect_ratio,
|
|
sdl2_poke_apply_state_changes,
|
|
#ifdef HAVE_MENU
|
|
sdl2_poke_set_texture_frame,
|
|
sdl2_poke_texture_enable,
|
|
#endif
|
|
sdl2_poke_set_osd_msg,
|
|
sdl2_show_mouse,
|
|
sdl2_grab_mouse_toggle,
|
|
NULL,
|
|
};
|
|
|
|
void sdl2_gfx_poke_interface(void *data, const video_poke_interface_t **iface)
|
|
{
|
|
(void)data;
|
|
*iface = &sdl2_video_poke_interface;
|
|
}
|
|
|
|
static bool sdl2_gfx_set_shader(void *data,
|
|
enum rarch_shader_type type, const char *path)
|
|
{
|
|
(void)data;
|
|
(void)type;
|
|
(void)path;
|
|
|
|
return false;
|
|
}
|
|
|
|
video_driver_t video_sdl2 = {
|
|
sdl2_gfx_init,
|
|
sdl2_gfx_frame,
|
|
sdl2_gfx_set_nonblock_state,
|
|
sdl2_gfx_alive,
|
|
sdl2_gfx_focus,
|
|
sdl2_gfx_set_shader,
|
|
sdl2_gfx_free,
|
|
"sdl2",
|
|
|
|
sdl2_gfx_set_rotation,
|
|
sdl2_gfx_viewport_info,
|
|
sdl2_gfx_read_viewport,
|
|
#ifdef HAVE_OVERLAY
|
|
NULL, //void (*overlay_interface)(void *data, const video_overlay_interface_t **iface);
|
|
#endif
|
|
sdl2_gfx_poke_interface
|
|
};
|
|
|