mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-04 22:46:46 +00:00
965 lines
26 KiB
C
965 lines
26 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2017 - Daniel De Matteis
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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 <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <math.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <X11/extensions/XShm.h>
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#include <X11/extensions/Xv.h>
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#include <X11/extensions/Xvlib.h>
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#include <retro_inline.h>
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#ifdef HAVE_CONFIG_H
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#include "../../config.h"
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#endif
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#ifdef HAVE_MENU
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#include "../../menu/menu_driver.h"
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#endif
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#include "../font_driver.h"
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#include "../../configuration.h"
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#include "../../frontend/frontend_driver.h"
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#include "../../verbosity.h"
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#include "../common/x11_common.h"
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/* Adapted from bSNES and MPlayer source. */
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typedef struct xv
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{
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GC gc;
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XShmSegmentInfo shminfo;
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XvPortID port;
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int depth;
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int visualid;
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XvImage *image;
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uint32_t fourcc;
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unsigned width;
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unsigned height;
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bool keep_aspect;
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struct video_viewport vp;
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uint8_t *ytable;
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uint8_t *utable;
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uint8_t *vtable;
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void *font;
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const font_renderer_driver_t *font_driver;
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unsigned luma_index[2];
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unsigned chroma_u_index;
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unsigned chroma_v_index;
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uint8_t font_y;
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uint8_t font_u;
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uint8_t font_v;
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void (*render_func)(struct xv*, const void *frame,
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unsigned width, unsigned height, unsigned pitch);
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} xv_t;
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static void xv_set_nonblock_state(void *data, bool state)
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{
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xv_t *xv = (xv_t*)data;
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Atom atom = XInternAtom(g_x11_dpy, "XV_SYNC_TO_VBLANK", true);
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if (atom != None && xv->port)
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XvSetPortAttribute(g_x11_dpy, xv->port, atom, !state);
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else
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RARCH_WARN("Failed to set SYNC_TO_VBLANK attribute.\n");
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}
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static INLINE void xv_calculate_yuv(uint8_t *y, uint8_t *u, uint8_t *v,
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unsigned r, unsigned g, unsigned b)
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{
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int y_ = (int)(+((double)r * 0.257) + ((double)g * 0.504)
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+ ((double)b * 0.098) + 16.0);
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int u_ = (int)(-((double)r * 0.148) - ((double)g * 0.291)
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+ ((double)b * 0.439) + 128.0);
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int v_ = (int)(+((double)r * 0.439) - ((double)g * 0.368)
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- ((double)b * 0.071) + 128.0);
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*y = y_ < 0 ? 0 : (y_ > 255 ? 255 : y_);
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*u = y_ < 0 ? 0 : (u_ > 255 ? 255 : u_);
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*v = v_ < 0 ? 0 : (v_ > 255 ? 255 : v_);
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}
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static void xv_init_yuv_tables(xv_t *xv)
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{
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unsigned i;
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xv->ytable = (uint8_t*)malloc(0x10000);
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xv->utable = (uint8_t*)malloc(0x10000);
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xv->vtable = (uint8_t*)malloc(0x10000);
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for (i = 0; i < 0x10000; i++)
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{
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/* Extract RGB565 color data from i */
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unsigned r = (i >> 11) & 0x1f;
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unsigned g = (i >> 5) & 0x3f;
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unsigned b = (i >> 0) & 0x1f;
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r = (r << 3) | (r >> 2); /* R5->R8 */
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g = (g << 2) | (g >> 4); /* G6->G8 */
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b = (b << 3) | (b >> 2); /* B5->B8 */
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xv_calculate_yuv(&xv->ytable[i],
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&xv->utable[i], &xv->vtable[i], r, g, b);
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}
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}
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static void xv_init_font(xv_t *xv, const char *font_path, unsigned font_size)
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{
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settings_t *settings = config_get_ptr();
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if (!settings->bools.video_font_enable)
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return;
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if (font_renderer_create_default((const void**)&xv->font_driver,
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&xv->font, *settings->paths.path_font
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? settings->paths.path_font : NULL,
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settings->floats.video_font_size))
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{
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int r, g, b;
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r = settings->floats.video_msg_color_r * 255;
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r = (r < 0 ? 0 : (r > 255 ? 255 : r));
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g = settings->floats.video_msg_color_g * 255;
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g = (g < 0 ? 0 : (g > 255 ? 255 : g));
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b = settings->floats.video_msg_color_b * 255;
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b = (b < 0 ? 0 : (b > 255 ? 255 : b));
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xv_calculate_yuv(&xv->font_y, &xv->font_u, &xv->font_v,
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r, g, b);
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}
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else
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RARCH_LOG("[XVideo]: Could not initialize fonts.\n");
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}
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/* We render @ 2x scale to combat chroma downsampling.
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* Also makes fonts more bearable. */
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static void render16_yuy2(xv_t *xv, const void *input_,
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unsigned width, unsigned height, unsigned pitch)
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{
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unsigned x, y;
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const uint16_t *input = (const uint16_t*)input_;
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uint8_t *output = (uint8_t*)xv->image->data;
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for (y = 0; y < height; y++)
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{
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for (x = 0; x < width; x++)
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{
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uint16_t p = *input++;
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uint8_t y0 = xv->ytable[p];
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uint8_t u = xv->utable[p];
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uint8_t v = xv->vtable[p];
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unsigned img_width = xv->width << 1;
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output[0] = output[img_width] = y0;
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output[1] = output[img_width + 1] = u;
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output[2] = output[img_width + 2] = y0;
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output[3] = output[img_width + 3] = v;
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output += 4;
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}
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input += (pitch >> 1) - width;
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output += (xv->width - width) << 2;
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}
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}
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static void render16_uyvy(xv_t *xv, const void *input_,
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unsigned width, unsigned height, unsigned pitch)
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{
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unsigned x, y;
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const uint16_t *input = (const uint16_t*)input_;
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uint8_t *output = (uint8_t*)xv->image->data;
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for (y = 0; y < height; y++)
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{
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for (x = 0; x < width; x++)
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{
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uint16_t p = *input++;
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uint8_t y0 = xv->ytable[p];
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uint8_t u = xv->utable[p];
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uint8_t v = xv->vtable[p];
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unsigned img_width = xv->width << 1;
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output[0] = output[img_width] = u;
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output[1] = output[img_width + 1] = y0;
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output[2] = output[img_width + 2] = v;
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output[3] = output[img_width + 3] = y0;
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output += 4;
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}
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input += (pitch >> 1) - width;
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output += (xv->width - width) << 2;
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}
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}
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static void render32_yuy2(xv_t *xv, const void *input_,
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unsigned width, unsigned height, unsigned pitch)
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{
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unsigned x, y;
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const uint32_t *input = (const uint32_t*)input_;
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uint8_t *output = (uint8_t*)xv->image->data;
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for (y = 0; y < height; y++)
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{
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for (x = 0; x < width; x++)
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{
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uint8_t y0, u, v;
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unsigned img_width;
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uint32_t p = *input++;
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p = ((p >> 8) & 0xf800) | ((p >> 5) & 0x07e0)
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| ((p >> 3) & 0x1f); /* ARGB -> RGB16 */
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y0 = xv->ytable[p];
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u = xv->utable[p];
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v = xv->vtable[p];
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img_width = xv->width << 1;
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output[0] = output[img_width] = y0;
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output[1] = output[img_width + 1] = u;
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output[2] = output[img_width + 2] = y0;
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output[3] = output[img_width + 3] = v;
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output += 4;
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}
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input += (pitch >> 2) - width;
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output += (xv->width - width) << 2;
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}
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}
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static void render32_uyvy(xv_t *xv, const void *input_,
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unsigned width, unsigned height, unsigned pitch)
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{
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unsigned x, y;
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const uint32_t *input = (const uint32_t*)input_;
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uint16_t *output = (uint16_t*)xv->image->data;
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for (y = 0; y < height; y++)
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{
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for (x = 0; x < width; x++)
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{
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uint8_t y0, u, v;
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unsigned img_width;
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uint32_t p = *input++;
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p = ((p >> 8) & 0xf800)
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| ((p >> 5) & 0x07e0) | ((p >> 3) & 0x1f); /* ARGB -> RGB16 */
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y0 = xv->ytable[p];
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u = xv->utable[p];
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v = xv->vtable[p];
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img_width = xv->width << 1;
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output[0] = output[img_width] = u;
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output[1] = output[img_width + 1] = y0;
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output[2] = output[img_width + 2] = v;
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output[3] = output[img_width + 3] = y0;
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output += 4;
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}
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input += (pitch >> 2) - width;
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output += (xv->width - width) << 2;
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}
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}
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struct format_desc
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{
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void (*render_16)(xv_t *xv, const void *input,
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unsigned width, unsigned height, unsigned pitch);
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void (*render_32)(xv_t *xv, const void *input,
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unsigned width, unsigned height, unsigned pitch);
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char components[4];
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unsigned luma_index[2];
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unsigned u_index;
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unsigned v_index;
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};
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static const struct format_desc formats[] = {
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{
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render16_yuy2,
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render32_yuy2,
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{ 'Y', 'U', 'Y', 'V' },
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{ 0, 2 },
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1,
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3,
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},
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{
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render16_uyvy,
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render32_uyvy,
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{ 'U', 'Y', 'V', 'Y' },
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{ 1, 3 },
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0,
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2,
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},
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};
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static bool xv_adaptor_set_format(xv_t *xv, Display *dpy,
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XvPortID port, const video_info_t *video)
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{
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int i;
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unsigned j;
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int format_count;
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XvImageFormatValues *format = XvListImageFormats(
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g_x11_dpy, port, &format_count);
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if (!format)
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return false;
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for (i = 0; i < format_count; i++)
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{
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for (j = 0; j < ARRAY_SIZE(formats); j++)
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{
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if (format[i].type == XvYUV
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&& format[i].bits_per_pixel == 16
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&& format[i].format == XvPacked)
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{
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if (format[i].component_order[0] == formats[j].components[0] &&
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format[i].component_order[1] == formats[j].components[1] &&
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format[i].component_order[2] == formats[j].components[2] &&
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format[i].component_order[3] == formats[j].components[3])
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{
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xv->fourcc = format[i].id;
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xv->render_func = video->rgb32
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? formats[j].render_32 : formats[j].render_16;
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xv->luma_index[0] = formats[j].luma_index[0];
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xv->luma_index[1] = formats[j].luma_index[1];
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xv->chroma_u_index = formats[j].u_index;
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xv->chroma_v_index = formats[j].v_index;
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XFree(format);
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return true;
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}
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}
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}
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}
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XFree(format);
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return false;
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}
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static void xv_calc_out_rect(bool keep_aspect,
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struct video_viewport *vp,
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unsigned vp_width, unsigned vp_height)
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{
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settings_t *settings = config_get_ptr();
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vp->full_width = vp_width;
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vp->full_height = vp_height;
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if (settings->bools.video_scale_integer)
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video_viewport_get_scaled_integer(vp, vp_width, vp_height,
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video_driver_get_aspect_ratio(), keep_aspect);
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else if (!keep_aspect)
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{
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vp->x = 0;
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vp->y = 0;
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vp->width = vp_width;
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vp->height = vp_height;
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}
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else
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{
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float desired_aspect = video_driver_get_aspect_ratio();
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float device_aspect = (float)vp_width / vp_height;
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/* If the aspect ratios of screen and desired aspect ratio
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* are sufficiently equal (floating point stuff),
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* assume they are actually equal.
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*/
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if (fabs(device_aspect - desired_aspect) < 0.0001)
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{
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vp->x = 0;
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vp->y = 0;
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vp->width = vp_width;
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vp->height = vp_height;
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}
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else if (device_aspect > desired_aspect)
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{
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float delta = (desired_aspect / device_aspect - 1.0) / 2.0 + 0.5;
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vp->x = vp_width * (0.5 - delta);
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vp->y = 0;
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vp->width = 2.0 * vp_width * delta;
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vp->height = vp_height;
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}
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else
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{
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float delta = (device_aspect / desired_aspect - 1.0) / 2.0 + 0.5;
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vp->x = 0;
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vp->y = vp_height * (0.5 - delta);
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vp->width = vp_width;
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vp->height = 2.0 * vp_height * delta;
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}
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}
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}
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static void *xv_init(const video_info_t *video,
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const input_driver_t **input, void **input_data)
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{
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unsigned i;
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int ret;
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XWindowAttributes target;
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char buf[128] = {0};
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char title[128] = {0};
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XSetWindowAttributes attributes = {0};
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XVisualInfo visualtemplate = {0};
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unsigned width = 0;
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unsigned height = 0;
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unsigned adaptor_count = 0;
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int visualmatches = 0;
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Atom atom = 0;
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void *xinput = NULL;
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XVisualInfo *visualinfo = NULL;
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XvAdaptorInfo *adaptor_info = NULL;
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const struct retro_game_geometry *geom = NULL;
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struct retro_system_av_info *av_info = NULL;
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settings_t *settings = config_get_ptr();
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xv_t *xv = (xv_t*)calloc(1, sizeof(*xv));
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if (!xv)
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return NULL;
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XInitThreads();
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g_x11_dpy = XOpenDisplay(NULL);
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if (g_x11_dpy == NULL)
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{
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RARCH_ERR("[XVideo]: Cannot connect to the X server.\n");
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RARCH_ERR("[XVideo]: Check DISPLAY variable and if X is running.\n");
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goto error;
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}
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av_info = video_viewport_get_system_av_info();
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if (av_info)
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geom = &av_info->geometry;
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if (!XShmQueryExtension(g_x11_dpy))
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{
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RARCH_ERR("[XVideo]: XShm extension not found.\n");
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goto error;
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}
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xv->keep_aspect = video->force_aspect;
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/* Find an appropriate Xv port. */
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xv->port = 0;
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ret = XvQueryAdaptors(g_x11_dpy,
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DefaultRootWindow(g_x11_dpy), &adaptor_count, &adaptor_info);
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if (ret != Success)
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{
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if (ret == XvBadExtension)
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RARCH_ERR("[XVideo]: Xv extension not found.\n");
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else if (ret == XvBadAlloc)
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RARCH_ERR("[XVideo]: XvQueryAdaptors() failed to allocate memory.\n");
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else
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RARCH_ERR("[XVideo]: Unkown error in XvQueryAdaptors().\n");
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goto error;
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}
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|
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if (adaptor_count == 0)
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{
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RARCH_ERR("[XVideo]: XvQueryAdaptors() found 0 adaptors.\n");
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goto error;
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}
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|
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for (i = 0; i < adaptor_count; i++)
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{
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/* Find adaptor that supports both input (memory->drawable)
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* and image (drawable->screen) masks. */
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|
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if (adaptor_info[i].num_formats < 1)
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continue;
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if (!(adaptor_info[i].type & XvInputMask))
|
|
continue;
|
|
if (!(adaptor_info[i].type & XvImageMask))
|
|
continue;
|
|
if (!xv_adaptor_set_format(xv, g_x11_dpy,
|
|
adaptor_info[i].base_id, video))
|
|
continue;
|
|
|
|
xv->port = adaptor_info[i].base_id;
|
|
xv->depth = adaptor_info[i].formats->depth;
|
|
xv->visualid = adaptor_info[i].formats->visual_id;
|
|
|
|
RARCH_LOG("[XVideo]: Found suitable XvPort #%u\n", (unsigned)xv->port);
|
|
break;
|
|
}
|
|
XvFreeAdaptorInfo(adaptor_info);
|
|
|
|
if (xv->port == 0)
|
|
{
|
|
RARCH_ERR("[XVideo]: Failed to find valid XvPort or format.\n");
|
|
goto error;
|
|
}
|
|
|
|
visualtemplate.visualid = xv->visualid;
|
|
visualtemplate.screen = DefaultScreen(g_x11_dpy);
|
|
visualtemplate.depth = xv->depth;
|
|
visualtemplate.visual = 0;
|
|
visualinfo = XGetVisualInfo(g_x11_dpy, VisualIDMask |
|
|
VisualScreenMask | VisualDepthMask, &visualtemplate, &visualmatches);
|
|
|
|
if (!visualinfo)
|
|
goto error;
|
|
|
|
if (visualmatches < 1 || !visualinfo->visual)
|
|
{
|
|
RARCH_ERR("[XVideo]: Unable to find Xv-compatible visual.\n");
|
|
goto error;
|
|
}
|
|
|
|
g_x11_cmap = XCreateColormap(g_x11_dpy,
|
|
DefaultRootWindow(g_x11_dpy), visualinfo->visual, AllocNone);
|
|
|
|
attributes.colormap = g_x11_cmap;
|
|
attributes.border_pixel = 0;
|
|
attributes.event_mask = StructureNotifyMask | KeyPressMask |
|
|
KeyReleaseMask | ButtonReleaseMask | ButtonPressMask | DestroyNotify | ClientMessage;
|
|
|
|
if (video->fullscreen)
|
|
{
|
|
width = (((video->width == 0) && geom) ? geom->base_width : video->width);
|
|
height = (((video->height == 0) && geom) ? geom->base_height : video->height);
|
|
}
|
|
else
|
|
{
|
|
width = video->width;
|
|
height = video->height;
|
|
}
|
|
g_x11_win = XCreateWindow(g_x11_dpy, DefaultRootWindow(g_x11_dpy),
|
|
0, 0, width, height,
|
|
0, xv->depth, InputOutput, visualinfo->visual,
|
|
CWColormap | CWBorderPixel | CWEventMask, &attributes);
|
|
|
|
XFree(visualinfo);
|
|
XSetWindowBackground(g_x11_dpy, g_x11_win, 0);
|
|
|
|
XMapWindow(g_x11_dpy, g_x11_win);
|
|
|
|
video_driver_get_window_title(title, sizeof(title));
|
|
|
|
if (title[0])
|
|
XStoreName(g_x11_dpy, g_x11_win, title);
|
|
|
|
x11_set_window_attr(g_x11_dpy, g_x11_win);
|
|
|
|
if (video->fullscreen)
|
|
{
|
|
x11_windowed_fullscreen(g_x11_dpy, g_x11_win);
|
|
x11_show_mouse(g_x11_dpy, g_x11_win, false);
|
|
}
|
|
|
|
xv->gc = XCreateGC(g_x11_dpy, g_x11_win, 0, 0);
|
|
|
|
/* Set colorkey to auto paint, so that Xv video output is always visible. */
|
|
atom = XInternAtom(g_x11_dpy, "XV_AUTOPAINT_COLORKEY", true);
|
|
if (atom != None)
|
|
XvSetPortAttribute(g_x11_dpy, xv->port, atom, 1);
|
|
|
|
if (geom)
|
|
{
|
|
xv->width = geom->max_width;
|
|
xv->height = geom->max_height;
|
|
}
|
|
|
|
xv->image = XvShmCreateImage(g_x11_dpy, xv->port, xv->fourcc,
|
|
NULL, xv->width, xv->height, &xv->shminfo);
|
|
|
|
if (!xv->image)
|
|
{
|
|
RARCH_ERR("[XVideo]: XShmCreateImage failed.\n");
|
|
goto error;
|
|
}
|
|
|
|
xv->width = xv->image->width;
|
|
xv->height = xv->image->height;
|
|
xv->shminfo.shmid = shmget(IPC_PRIVATE, xv->image->data_size, IPC_CREAT | 0777);
|
|
xv->shminfo.shmaddr = xv->image->data = (char*)shmat(xv->shminfo.shmid, NULL, 0);
|
|
xv->shminfo.readOnly = false;
|
|
|
|
if (!XShmAttach(g_x11_dpy, &xv->shminfo))
|
|
{
|
|
RARCH_ERR("[XVideo]: XShmAttach failed.\n");
|
|
goto error;
|
|
}
|
|
XSync(g_x11_dpy, False);
|
|
memset(xv->image->data, 128, xv->image->data_size);
|
|
|
|
x11_install_quit_atom();
|
|
|
|
frontend_driver_install_signal_handler();
|
|
|
|
xv_set_nonblock_state(xv, !video->vsync);
|
|
|
|
if (input && input_data)
|
|
{
|
|
xinput = input_x.init(settings->arrays.input_joypad_driver);
|
|
if (xinput)
|
|
{
|
|
*input = &input_x;
|
|
*input_data = xinput;
|
|
}
|
|
else
|
|
*input = NULL;
|
|
}
|
|
|
|
xv_init_yuv_tables(xv);
|
|
xv_init_font(xv, settings->paths.path_font, settings->floats.video_font_size);
|
|
|
|
if (!x11_input_ctx_new(true))
|
|
goto error;
|
|
|
|
XGetWindowAttributes(g_x11_dpy, g_x11_win, &target);
|
|
xv_calc_out_rect(xv->keep_aspect, &xv->vp, target.width, target.height);
|
|
xv->vp.full_width = target.width;
|
|
xv->vp.full_height = target.height;
|
|
|
|
return xv;
|
|
|
|
error:
|
|
if (visualinfo)
|
|
XFree(visualinfo);
|
|
free(xv);
|
|
return NULL;
|
|
}
|
|
|
|
static bool xv_check_resize(xv_t *xv, unsigned width, unsigned height)
|
|
{
|
|
/* We render @ 2x scale to combat chroma downsampling. */
|
|
if (xv->width != (width << 1) || xv->height != (height << 1))
|
|
{
|
|
xv->width = width << 1;
|
|
xv->height = height << 1;
|
|
|
|
XShmDetach(g_x11_dpy, &xv->shminfo);
|
|
shmdt(xv->shminfo.shmaddr);
|
|
shmctl(xv->shminfo.shmid, IPC_RMID, NULL);
|
|
XFree(xv->image);
|
|
|
|
memset(&xv->shminfo, 0, sizeof(xv->shminfo));
|
|
xv->image = XvShmCreateImage(g_x11_dpy, xv->port, xv->fourcc,
|
|
NULL, xv->width, xv->height, &xv->shminfo);
|
|
|
|
if (xv->image == None)
|
|
{
|
|
RARCH_ERR("[XVideo]: Failed to create image.\n");
|
|
return false;
|
|
}
|
|
|
|
xv->width = xv->image->width;
|
|
xv->height = xv->image->height;
|
|
|
|
xv->shminfo.shmid =
|
|
shmget(IPC_PRIVATE, xv->image->data_size, IPC_CREAT | 0777);
|
|
|
|
if (xv->shminfo.shmid < 0)
|
|
{
|
|
RARCH_ERR("[XVideo]: Failed to init SHM.\n");
|
|
return false;
|
|
}
|
|
|
|
xv->shminfo.shmaddr = xv->image->data =
|
|
(char*)shmat(xv->shminfo.shmid, NULL, 0);
|
|
xv->shminfo.readOnly = false;
|
|
|
|
if (!XShmAttach(g_x11_dpy, &xv->shminfo))
|
|
{
|
|
RARCH_ERR("[XVideo]: Failed to reattch XvShm image.\n");
|
|
return false;
|
|
}
|
|
XSync(g_x11_dpy, False);
|
|
memset(xv->image->data, 128, xv->image->data_size);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/* TODO: Is there some way to render directly like GL?
|
|
* Hacky C code is hacky. */
|
|
static void xv_render_msg(xv_t *xv, const char *msg,
|
|
unsigned width, unsigned height)
|
|
{
|
|
int x, y, msg_base_x, msg_base_y;
|
|
unsigned i, luma_index[2], pitch;
|
|
unsigned chroma_u_index, chroma_v_index;
|
|
settings_t *settings = config_get_ptr();
|
|
const struct font_atlas *atlas = NULL;
|
|
|
|
if (!xv->font)
|
|
return;
|
|
|
|
atlas = xv->font_driver->get_atlas(xv->font);
|
|
|
|
msg_base_x = settings->floats.video_msg_pos_x * width;
|
|
msg_base_y = height * (1.0f - settings->floats.video_msg_pos_y);
|
|
|
|
luma_index[0] = xv->luma_index[0];
|
|
luma_index[1] = xv->luma_index[1];
|
|
|
|
chroma_u_index = xv->chroma_u_index;
|
|
chroma_v_index = xv->chroma_v_index;
|
|
|
|
pitch = width << 1; /* YUV formats used are 16 bpp. */
|
|
|
|
for (; *msg; msg++)
|
|
{
|
|
int base_x, base_y, glyph_width, glyph_height, max_width, max_height;
|
|
const uint8_t *src = NULL;
|
|
uint8_t *out = NULL;
|
|
const struct font_glyph *glyph =
|
|
xv->font_driver->get_glyph(xv->font, (uint8_t)*msg);
|
|
|
|
if (!glyph)
|
|
continue;
|
|
|
|
/* Make sure we always start on the correct boundary
|
|
* so the indices are correct. */
|
|
base_x = (msg_base_x + glyph->draw_offset_x + 1) & ~1;
|
|
base_y = msg_base_y + glyph->draw_offset_y;
|
|
|
|
glyph_width = glyph->width;
|
|
glyph_height = glyph->height;
|
|
|
|
src = atlas->buffer + glyph->atlas_offset_x +
|
|
glyph->atlas_offset_y * atlas->width;
|
|
|
|
if (base_x < 0)
|
|
{
|
|
src -= base_x;
|
|
glyph_width += base_x;
|
|
base_x = 0;
|
|
}
|
|
|
|
if (base_y < 0)
|
|
{
|
|
src -= base_y * (int)atlas->width;
|
|
glyph_height += base_y;
|
|
base_y = 0;
|
|
}
|
|
|
|
max_width = width - base_x;
|
|
max_height = height - base_y;
|
|
|
|
if (max_width <= 0 || max_height <= 0)
|
|
continue;
|
|
|
|
if (glyph_width > max_width)
|
|
glyph_width = max_width;
|
|
if (glyph_height > max_height)
|
|
glyph_height = max_height;
|
|
|
|
out = (uint8_t*)xv->image->data + base_y * pitch + (base_x << 1);
|
|
|
|
for (y = 0; y < glyph_height; y++, src += atlas->width, out += pitch)
|
|
{
|
|
/* 2 input pixels => 4 bytes (2Y, 1U, 1V). */
|
|
|
|
for (x = 0; x < glyph_width; x += 2)
|
|
{
|
|
unsigned alpha[2], alpha_sub, blended;
|
|
int out_x = x << 1;
|
|
|
|
alpha[0] = src[x + 0];
|
|
alpha[1] = 0;
|
|
|
|
if (x + 1 < glyph_width)
|
|
alpha[1] = src[x + 1];
|
|
|
|
/* Blended alpha for the sub-sampled U/V channels. */
|
|
alpha_sub = (alpha[0] + alpha[1]) >> 1;
|
|
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
unsigned blended = (xv->font_y * alpha[i]
|
|
+ ((256 - alpha[i]) * out[out_x + luma_index[i]])) >> 8;
|
|
out[out_x + luma_index[i]] = blended;
|
|
}
|
|
|
|
/* Blend chroma channels */
|
|
blended = (xv->font_u * alpha_sub
|
|
+ ((256 - alpha_sub) * out[out_x + chroma_u_index])) >> 8;
|
|
out[out_x + chroma_u_index] = blended;
|
|
|
|
blended = (xv->font_v * alpha_sub
|
|
+ ((256 - alpha_sub) * out[out_x + chroma_v_index])) >> 8;
|
|
out[out_x + chroma_v_index] = blended;
|
|
}
|
|
}
|
|
|
|
msg_base_x += glyph->advance_x;
|
|
msg_base_y += glyph->advance_y;
|
|
}
|
|
}
|
|
|
|
static bool xv_frame(void *data, const void *frame, unsigned width,
|
|
unsigned height, uint64_t frame_count,
|
|
unsigned pitch, const char *msg, video_frame_info_t *video_info)
|
|
{
|
|
XWindowAttributes target;
|
|
xv_t *xv = (xv_t*)data;
|
|
|
|
if (!frame)
|
|
return true;
|
|
|
|
if (!xv_check_resize(xv, width, height))
|
|
return false;
|
|
|
|
XGetWindowAttributes(g_x11_dpy, g_x11_win, &target);
|
|
xv->render_func(xv, frame, width, height, pitch);
|
|
|
|
xv_calc_out_rect(xv->keep_aspect, &xv->vp, target.width, target.height);
|
|
xv->vp.full_width = target.width;
|
|
xv->vp.full_height = target.height;
|
|
|
|
#ifdef HAVE_MENU
|
|
menu_driver_frame(video_info);
|
|
#endif
|
|
|
|
if (msg)
|
|
xv_render_msg(xv, msg, width << 1, height << 1);
|
|
|
|
XvShmPutImage(g_x11_dpy, xv->port, g_x11_win, xv->gc, xv->image,
|
|
0, 0, width << 1, height << 1,
|
|
xv->vp.x, xv->vp.y, xv->vp.width, xv->vp.height,
|
|
true);
|
|
XSync(g_x11_dpy, False);
|
|
|
|
x11_update_title(NULL, video_info);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool xv_suppress_screensaver(void *data, bool enable)
|
|
{
|
|
(void)data;
|
|
|
|
if (video_driver_display_type_get() != RARCH_DISPLAY_X11)
|
|
return false;
|
|
|
|
x11_suspend_screensaver(video_driver_window_get(), enable);
|
|
return true;
|
|
}
|
|
|
|
static bool xv_has_windowed(void *data)
|
|
{
|
|
(void)data;
|
|
|
|
/* TODO - verify. */
|
|
return true;
|
|
}
|
|
|
|
static void xv_free(void *data)
|
|
{
|
|
xv_t *xv = (xv_t*)data;
|
|
|
|
if (!xv)
|
|
return;
|
|
|
|
x11_input_ctx_destroy();
|
|
|
|
XShmDetach(g_x11_dpy, &xv->shminfo);
|
|
shmdt(xv->shminfo.shmaddr);
|
|
shmctl(xv->shminfo.shmid, IPC_RMID, NULL);
|
|
XFree(xv->image);
|
|
|
|
x11_window_destroy(true);
|
|
x11_colormap_destroy();
|
|
|
|
XCloseDisplay(g_x11_dpy);
|
|
|
|
free(xv->ytable);
|
|
free(xv->utable);
|
|
free(xv->vtable);
|
|
|
|
if (xv->font)
|
|
xv->font_driver->free(xv->font);
|
|
|
|
free(xv);
|
|
}
|
|
|
|
static void xv_viewport_info(void *data, struct video_viewport *vp)
|
|
{
|
|
xv_t *xv = (xv_t*)data;
|
|
*vp = xv->vp;
|
|
}
|
|
|
|
static void xv_set_rotation(void *data, unsigned rotation)
|
|
{
|
|
(void)data;
|
|
(void)rotation;
|
|
}
|
|
|
|
static bool xv_read_viewport(void *data, uint8_t *buffer, bool is_idle)
|
|
{
|
|
(void)data;
|
|
(void)buffer;
|
|
|
|
return true;
|
|
}
|
|
|
|
static void xv_get_poke_interface(void *data,
|
|
const video_poke_interface_t **iface)
|
|
{
|
|
(void)data;
|
|
(void)iface;
|
|
}
|
|
|
|
static bool xv_set_shader(void *data,
|
|
enum rarch_shader_type type, const char *path)
|
|
{
|
|
(void)data;
|
|
(void)type;
|
|
(void)path;
|
|
|
|
return false;
|
|
}
|
|
|
|
video_driver_t video_xvideo = {
|
|
xv_init,
|
|
xv_frame,
|
|
xv_set_nonblock_state,
|
|
x11_alive,
|
|
x11_has_focus_internal,
|
|
xv_suppress_screensaver,
|
|
xv_has_windowed,
|
|
xv_set_shader,
|
|
xv_free,
|
|
"xvideo",
|
|
NULL, /* set_viewport */
|
|
xv_set_rotation,
|
|
xv_viewport_info,
|
|
xv_read_viewport,
|
|
NULL, /* read_frame_raw */
|
|
#ifdef HAVE_OVERLAY
|
|
NULL, /* overlay_interface */
|
|
#endif
|
|
xv_get_poke_interface
|
|
};
|