mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-23 11:18:25 +00:00
806 lines
23 KiB
C
806 lines
23 KiB
C
/* SSNES - A frontend for libretro.
|
|
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
|
|
*
|
|
* SSNES is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* SSNES is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
|
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
* PURPOSE. See the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with SSNES.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "driver.h"
|
|
#include "general.h"
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <signal.h>
|
|
#include <math.h>
|
|
#ifdef HAVE_FREETYPE
|
|
#include "fonts.h"
|
|
#endif
|
|
#include "gfx_common.h"
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Xutil.h>
|
|
#include <X11/Xatom.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/shm.h>
|
|
#include <X11/extensions/XShm.h>
|
|
#include <X11/extensions/Xv.h>
|
|
#include <X11/extensions/Xvlib.h>
|
|
|
|
// Adapted from bSNES and MPlayer source.
|
|
|
|
typedef struct xv
|
|
{
|
|
Display *display;
|
|
GC gc;
|
|
Window window;
|
|
Colormap colormap;
|
|
XShmSegmentInfo shminfo;
|
|
|
|
Atom quit_atom;
|
|
bool focus;
|
|
|
|
XvPortID port;
|
|
int depth;
|
|
int visualid;
|
|
|
|
XvImage *image;
|
|
uint32_t fourcc;
|
|
|
|
unsigned width;
|
|
unsigned height;
|
|
bool keep_aspect;
|
|
|
|
uint8_t *ytable;
|
|
uint8_t *utable;
|
|
uint8_t *vtable;
|
|
|
|
#ifdef HAVE_FREETYPE
|
|
font_renderer_t *font;
|
|
|
|
unsigned luma_index[2];
|
|
unsigned chroma_u_index;
|
|
unsigned chroma_v_index;
|
|
|
|
uint8_t font_y;
|
|
uint8_t font_u;
|
|
uint8_t font_v;
|
|
#endif
|
|
|
|
void (*render_func)(struct xv*, const void *frame, unsigned width, unsigned height, unsigned pitch);
|
|
} xv_t;
|
|
|
|
static void xv_set_nonblock_state(void *data, bool state)
|
|
{
|
|
xv_t *xv = (xv_t*)data;
|
|
Atom atom = XInternAtom(xv->display, "XV_SYNC_TO_VBLANK", true);
|
|
if (atom != None && xv->port)
|
|
XvSetPortAttribute(xv->display, xv->port, atom, !state);
|
|
else
|
|
SSNES_WARN("Failed to set SYNC_TO_VBLANK attribute.\n");
|
|
}
|
|
|
|
static volatile sig_atomic_t g_quit = 0;
|
|
static void sighandler(int sig)
|
|
{
|
|
g_quit = 1;
|
|
}
|
|
|
|
static inline void calculate_yuv(uint8_t *y, uint8_t *u, uint8_t *v, unsigned r, unsigned g, unsigned b)
|
|
{
|
|
int y_ = (int)(+((double)r * 0.257) + ((double)g * 0.504) + ((double)b * 0.098) + 16.0);
|
|
int u_ = (int)(-((double)r * 0.148) - ((double)g * 0.291) + ((double)b * 0.439) + 128.0);
|
|
int v_ = (int)(+((double)r * 0.439) - ((double)g * 0.368) - ((double)b * 0.071) + 128.0);
|
|
|
|
*y = y_ < 0 ? 0 : (y_ > 255 ? 255 : y_);
|
|
*u = y_ < 0 ? 0 : (u_ > 255 ? 255 : u_);
|
|
*v = v_ < 0 ? 0 : (v_ > 255 ? 255 : v_);
|
|
}
|
|
|
|
static void init_yuv_tables(xv_t *xv)
|
|
{
|
|
xv->ytable = (uint8_t*)malloc(0x8000);
|
|
xv->utable = (uint8_t*)malloc(0x8000);
|
|
xv->vtable = (uint8_t*)malloc(0x8000);
|
|
|
|
for (unsigned i = 0; i < 0x8000; i++)
|
|
{
|
|
// Extract RGB555 color data from i
|
|
unsigned r = (i >> 10) & 0x1F, g = (i >> 5) & 0x1F, b = (i) & 0x1F;
|
|
r = (r << 3) | (r >> 2); // R5->R8
|
|
g = (g << 3) | (g >> 2); // G5->G8
|
|
b = (b << 3) | (b >> 2); // B5->B8
|
|
|
|
calculate_yuv(&xv->ytable[i], &xv->utable[i], &xv->vtable[i], r, g, b);
|
|
}
|
|
}
|
|
|
|
// Source: MPlayer
|
|
static void hide_mouse(xv_t *xv)
|
|
{
|
|
Cursor no_ptr;
|
|
Pixmap bm_no;
|
|
XColor black, dummy;
|
|
Colormap colormap;
|
|
static char bm_no_data[] = {0, 0, 0, 0, 0, 0, 0, 0};
|
|
colormap = DefaultColormap(xv->display, DefaultScreen(xv->display));
|
|
if (!XAllocNamedColor(xv->display, colormap, "black", &black, &dummy))
|
|
return;
|
|
|
|
bm_no = XCreateBitmapFromData(xv->display, xv->window, bm_no_data, 8, 8);
|
|
no_ptr = XCreatePixmapCursor(xv->display, bm_no, bm_no, &black, &black, 0, 0);
|
|
XDefineCursor(xv->display, xv->window, no_ptr);
|
|
XFreeCursor(xv->display, no_ptr);
|
|
if (bm_no != None)
|
|
XFreePixmap(xv->display, bm_no);
|
|
XFreeColors(xv->display, colormap, &black.pixel, 1, 0);
|
|
}
|
|
|
|
static Atom XA_NET_WM_STATE;
|
|
static Atom XA_NET_WM_STATE_FULLSCREEN;
|
|
#define XA_INIT(x) XA##x = XInternAtom(xv->display, #x, False)
|
|
#define _NET_WM_STATE_ADD 1
|
|
|
|
// Source: MPlayer
|
|
static void set_fullscreen(xv_t *xv)
|
|
{
|
|
XA_INIT(_NET_WM_STATE);
|
|
XA_INIT(_NET_WM_STATE_FULLSCREEN);
|
|
|
|
if (!XA_NET_WM_STATE || !XA_NET_WM_STATE_FULLSCREEN)
|
|
{
|
|
SSNES_WARN("X11: Cannot set fullscreen.\n");
|
|
return;
|
|
}
|
|
|
|
XEvent xev;
|
|
|
|
xev.xclient.type = ClientMessage;
|
|
xev.xclient.serial = 0;
|
|
xev.xclient.send_event = True;
|
|
xev.xclient.message_type = XA_NET_WM_STATE;
|
|
xev.xclient.window = xv->window;
|
|
xev.xclient.format = 32;
|
|
xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
|
|
xev.xclient.data.l[1] = XA_NET_WM_STATE_FULLSCREEN;
|
|
xev.xclient.data.l[2] = 0;
|
|
xev.xclient.data.l[3] = 0;
|
|
xev.xclient.data.l[4] = 0;
|
|
|
|
XSendEvent(xv->display, DefaultRootWindow(xv->display), False,
|
|
SubstructureRedirectMask | SubstructureNotifyMask,
|
|
&xev);
|
|
}
|
|
|
|
static void xv_init_font(xv_t *xv, const char *font_path, unsigned font_size)
|
|
{
|
|
#ifdef HAVE_FREETYPE
|
|
if (!g_settings.video.font_enable)
|
|
return;
|
|
|
|
const char *path = font_path;
|
|
if (!*path)
|
|
path = font_renderer_get_default_font();
|
|
|
|
if (path)
|
|
{
|
|
xv->font = font_renderer_new(path, font_size);
|
|
if (xv->font)
|
|
{
|
|
int r = g_settings.video.msg_color_r * 255;
|
|
r = (r < 0 ? 0 : (r > 255 ? 255 : r));
|
|
int g = g_settings.video.msg_color_g * 255;
|
|
g = (g < 0 ? 0 : (g > 255 ? 255 : g));
|
|
int b = g_settings.video.msg_color_b * 255;
|
|
b = (b < 0 ? 0 : (b > 255 ? 255 : b));
|
|
|
|
calculate_yuv(&xv->font_y, &xv->font_u, &xv->font_v,
|
|
r, g, b);
|
|
}
|
|
else
|
|
SSNES_WARN("Failed to init font.\n");
|
|
}
|
|
else
|
|
SSNES_LOG("Did not find default font.\n");
|
|
#endif
|
|
}
|
|
|
|
// We render @ 2x scale to combat chroma downsampling. Also makes fonts more bearable :)
|
|
static void render16_yuy2(xv_t *xv, const void *input_, unsigned width, unsigned height, unsigned pitch)
|
|
{
|
|
const uint16_t *input = (const uint16_t*)input_;
|
|
uint8_t *output = (uint8_t*)xv->image->data;
|
|
|
|
for (unsigned y = 0; y < height; y++)
|
|
{
|
|
for (unsigned x = 0; x < width; x++)
|
|
{
|
|
uint16_t p = *input++;
|
|
|
|
uint8_t y0 = xv->ytable[p];
|
|
uint8_t u = xv->utable[p];
|
|
uint8_t v = xv->vtable[p];
|
|
|
|
unsigned img_width = xv->width << 1;
|
|
output[0] = output[img_width] = y0;
|
|
output[1] = output[img_width + 1] = u;
|
|
output[2] = output[img_width + 2] = y0;
|
|
output[3] = output[img_width + 3] = v;
|
|
output += 4;
|
|
}
|
|
|
|
input += (pitch >> 1) - width;
|
|
output += (xv->width - width) << 2;
|
|
}
|
|
}
|
|
|
|
static void render16_uyvy(xv_t *xv, const void *input_, unsigned width, unsigned height, unsigned pitch)
|
|
{
|
|
const uint16_t *input = (const uint16_t*)input_;
|
|
uint8_t *output = (uint8_t*)xv->image->data;
|
|
|
|
for (unsigned y = 0; y < height; y++)
|
|
{
|
|
for (unsigned x = 0; x < width; x++)
|
|
{
|
|
uint16_t p = *input++;
|
|
|
|
uint8_t y0 = xv->ytable[p];
|
|
uint8_t u = xv->utable[p];
|
|
uint8_t v = xv->vtable[p];
|
|
|
|
unsigned img_width = xv->width << 1;
|
|
output[0] = output[img_width] = u;
|
|
output[1] = output[img_width + 1] = y0;
|
|
output[2] = output[img_width + 2] = v;
|
|
output[3] = output[img_width + 3] = y0;
|
|
output += 4;
|
|
}
|
|
|
|
input += (pitch >> 1) - width;
|
|
output += (xv->width - width) << 2;
|
|
}
|
|
}
|
|
|
|
static void render32_yuy2(xv_t *xv, const void *input_, unsigned width, unsigned height, unsigned pitch)
|
|
{
|
|
const uint32_t *input = (const uint32_t*)input_;
|
|
uint8_t *output = (uint8_t*)xv->image->data;
|
|
|
|
for (unsigned y = 0; y < height; y++)
|
|
{
|
|
for (unsigned x = 0; x < width; x++)
|
|
{
|
|
uint32_t p = *input++;
|
|
p = ((p >> 9) & 0x7c00) | ((p >> 6) & 0x03e0) | ((p >> 3) & 0x1f); // ARGB -> RGB15
|
|
|
|
uint8_t y0 = xv->ytable[p];
|
|
uint8_t u = xv->utable[p];
|
|
uint8_t v = xv->vtable[p];
|
|
|
|
unsigned img_width = xv->width << 1;
|
|
output[0] = output[img_width] = y0;
|
|
output[1] = output[img_width + 1] = u;
|
|
output[2] = output[img_width + 2] = y0;
|
|
output[3] = output[img_width + 3] = v;
|
|
output += 4;
|
|
}
|
|
|
|
input += (pitch >> 2) - width;
|
|
output += (xv->width - width) << 2;
|
|
}
|
|
}
|
|
|
|
static void render32_uyvy(xv_t *xv, const void *input_, unsigned width, unsigned height, unsigned pitch)
|
|
{
|
|
const uint32_t *input = (const uint32_t*)input_;
|
|
uint16_t *output = (uint16_t*)xv->image->data;
|
|
|
|
for (unsigned y = 0; y < height; y++)
|
|
{
|
|
for (unsigned x = 0; x < width; x++)
|
|
{
|
|
uint32_t p = *input++;
|
|
p = ((p >> 9) & 0x7c00) | ((p >> 6) & 0x03e0) | ((p >> 3) & 0x1f); // ARGB -> RGB15
|
|
|
|
uint8_t y0 = xv->ytable[p];
|
|
uint8_t u = xv->utable[p];
|
|
uint8_t v = xv->vtable[p];
|
|
|
|
unsigned img_width = xv->width << 1;
|
|
output[0] = output[img_width] = u;
|
|
output[1] = output[img_width + 1] = y0;
|
|
output[2] = output[img_width + 2] = v;
|
|
output[3] = output[img_width + 3] = y0;
|
|
output += 4;
|
|
}
|
|
|
|
input += (pitch >> 2) - width;
|
|
output += (xv->width - width) << 2;
|
|
}
|
|
}
|
|
|
|
struct format_desc
|
|
{
|
|
void (*render_16)(xv_t *xv, const void *input,
|
|
unsigned width, unsigned height, unsigned pitch);
|
|
void (*render_32)(xv_t *xv, const void *input,
|
|
unsigned width, unsigned height, unsigned pitch);
|
|
char components[4];
|
|
unsigned luma_index[2];
|
|
unsigned u_index;
|
|
unsigned v_index;
|
|
};
|
|
|
|
static const struct format_desc formats[] = {
|
|
{
|
|
render16_yuy2,
|
|
render32_yuy2,
|
|
{ 'Y', 'U', 'Y', 'V' },
|
|
{ 0, 2 },
|
|
1,
|
|
3,
|
|
},
|
|
{
|
|
render16_uyvy,
|
|
render32_uyvy,
|
|
{ 'U', 'Y', 'V', 'Y' },
|
|
{ 1, 3 },
|
|
0,
|
|
2,
|
|
},
|
|
};
|
|
|
|
static bool adaptor_set_format(xv_t *xv, Display *dpy, XvPortID port, const video_info_t *video)
|
|
{
|
|
int format_count;
|
|
XvImageFormatValues *format = XvListImageFormats(xv->display, port, &format_count);
|
|
if (!format)
|
|
return false;
|
|
|
|
for (int i = 0; i < format_count; i++)
|
|
{
|
|
for (unsigned j = 0; j < sizeof(formats) / sizeof(formats[0]); j++)
|
|
{
|
|
if (format[i].type == XvYUV && format[i].bits_per_pixel == 16 && format[i].format == XvPacked)
|
|
{
|
|
if (format[i].component_order[0] == formats[j].components[0] &&
|
|
format[i].component_order[1] == formats[j].components[1] &&
|
|
format[i].component_order[2] == formats[j].components[2] &&
|
|
format[i].component_order[3] == formats[j].components[3])
|
|
{
|
|
xv->fourcc = format[i].id;
|
|
xv->render_func = video->rgb32 ? formats[j].render_32 : formats[j].render_16;
|
|
|
|
#ifdef HAVE_FREETYPE
|
|
xv->luma_index[0] = formats[j].luma_index[0];
|
|
xv->luma_index[1] = formats[j].luma_index[1];
|
|
xv->chroma_u_index = formats[j].u_index;
|
|
xv->chroma_v_index = formats[j].v_index;
|
|
#endif
|
|
XFree(format);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
XFree(format);
|
|
return false;
|
|
}
|
|
|
|
static void *xv_init(const video_info_t *video, const input_driver_t **input, void **input_data)
|
|
{
|
|
xv_t *xv = (xv_t*)calloc(1, sizeof(*xv));
|
|
if (!xv)
|
|
return NULL;
|
|
|
|
xv->display = XOpenDisplay(NULL);
|
|
struct sigaction sa;
|
|
unsigned adaptor_count = 0;
|
|
int visualmatches = 0;
|
|
XSetWindowAttributes attributes = {0};
|
|
unsigned width = 0, height = 0;
|
|
char buf[128];
|
|
Atom atom = 0;
|
|
void *xinput = NULL;
|
|
XVisualInfo *visualinfo = NULL;
|
|
XVisualInfo visualtemplate = {0};
|
|
const struct retro_game_geometry *geom = &g_extern.system.av_info.geometry;
|
|
|
|
if (!XShmQueryExtension(xv->display))
|
|
{
|
|
SSNES_ERR("XVideo: XShm extension not found.\n");
|
|
goto error;
|
|
}
|
|
|
|
xv->keep_aspect = video->force_aspect;
|
|
|
|
// Find an appropriate Xv port.
|
|
xv->port = 0;
|
|
XvAdaptorInfo *adaptor_info;
|
|
XvQueryAdaptors(xv->display, DefaultRootWindow(xv->display), &adaptor_count, &adaptor_info);
|
|
for (unsigned i = 0; i < adaptor_count; i++)
|
|
{
|
|
// Find adaptor that supports both input (memory->drawable) and image (drawable->screen) masks.
|
|
if (adaptor_info[i].num_formats < 1) continue;
|
|
if (!(adaptor_info[i].type & XvInputMask)) continue;
|
|
if (!(adaptor_info[i].type & XvImageMask)) continue;
|
|
if (!adaptor_set_format(xv, xv->display, 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;
|
|
|
|
SSNES_LOG("XVideo: Found suitable XvPort #%u\n", (unsigned)xv->port);
|
|
break;
|
|
}
|
|
XvFreeAdaptorInfo(adaptor_info);
|
|
|
|
if (xv->port == 0)
|
|
{
|
|
SSNES_ERR("XVideo: Failed to find valid XvPort or format.\n");
|
|
goto error;
|
|
}
|
|
|
|
visualtemplate.visualid = xv->visualid;
|
|
visualtemplate.screen = DefaultScreen(xv->display);
|
|
visualtemplate.depth = xv->depth;
|
|
visualtemplate.visual = 0;
|
|
visualinfo = XGetVisualInfo(xv->display, VisualIDMask | VisualScreenMask | VisualDepthMask, &visualtemplate, &visualmatches);
|
|
if (visualmatches < 1 || !visualinfo->visual)
|
|
{
|
|
if (visualinfo) XFree(visualinfo);
|
|
SSNES_ERR("XVideo: Unable to find Xv-compatible visual.\n");
|
|
goto error;
|
|
}
|
|
|
|
xv->colormap = XCreateColormap(xv->display, DefaultRootWindow(xv->display), visualinfo->visual, AllocNone);
|
|
attributes.colormap = xv->colormap;
|
|
attributes.border_pixel = 0;
|
|
attributes.event_mask = StructureNotifyMask | DestroyNotify | ClientMessage;
|
|
|
|
width = video->fullscreen ? ((video->width == 0) ? geom->base_width : video->width) : video->width;
|
|
height = video->fullscreen ? ((video->height == 0) ? geom->base_height : video->height) : video->height;
|
|
xv->window = XCreateWindow(xv->display, DefaultRootWindow(xv->display),
|
|
0, 0, width, height,
|
|
0, xv->depth, InputOutput, visualinfo->visual,
|
|
CWColormap | CWBorderPixel | CWEventMask, &attributes);
|
|
|
|
XFree(visualinfo);
|
|
XSetWindowBackground(xv->display, xv->window, 0);
|
|
|
|
XMapWindow(xv->display, xv->window);
|
|
|
|
if (gfx_window_title(buf, sizeof(buf)))
|
|
XStoreName(xv->display, xv->window, buf);
|
|
|
|
if (video->fullscreen)
|
|
set_fullscreen(xv);
|
|
hide_mouse(xv);
|
|
|
|
xv->gc = XCreateGC(xv->display, xv->window, 0, 0);
|
|
|
|
// Set colorkey to auto paint, so that Xv video output is always visible
|
|
atom = XInternAtom(xv->display, "XV_AUTOPAINT_COLORKEY", true);
|
|
if (atom != None) XvSetPortAttribute(xv->display, xv->port, atom, 1);
|
|
|
|
xv->width = geom->max_width;
|
|
xv->height = geom->max_height;
|
|
|
|
xv->image = XvShmCreateImage(xv->display, xv->port, xv->fourcc, NULL, xv->width, xv->height, &xv->shminfo);
|
|
if (!xv->image)
|
|
{
|
|
SSNES_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(xv->display, &xv->shminfo))
|
|
{
|
|
SSNES_ERR("XVideo: XShmAttach failed.\n");
|
|
goto error;
|
|
}
|
|
XSync(xv->display, False);
|
|
memset(xv->image->data, 128, xv->image->data_size);
|
|
|
|
xv->quit_atom = XInternAtom(xv->display, "WM_DELETE_WINDOW", False);
|
|
if (xv->quit_atom)
|
|
XSetWMProtocols(xv->display, xv->window, &xv->quit_atom, 1);
|
|
|
|
sa.sa_handler = sighandler;
|
|
sa.sa_flags = SA_RESTART;
|
|
sigemptyset(&sa.sa_mask);
|
|
sigaction(SIGINT, &sa, NULL);
|
|
sigaction(SIGTERM, &sa, NULL);
|
|
|
|
xv_set_nonblock_state(xv, !video->vsync);
|
|
xv->focus = true;
|
|
|
|
xinput = input_x.init();
|
|
if (xinput)
|
|
{
|
|
*input = &input_x;
|
|
*input_data = xinput;
|
|
}
|
|
else
|
|
*input = NULL;
|
|
|
|
init_yuv_tables(xv);
|
|
xv_init_font(xv, g_settings.video.font_path, g_settings.video.font_size);
|
|
|
|
return xv;
|
|
|
|
error:
|
|
free(xv);
|
|
return NULL;
|
|
}
|
|
|
|
static bool 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(xv->display, &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(xv->display, xv->port, xv->fourcc, NULL, xv->width, xv->height, &xv->shminfo);
|
|
if (xv->image == None)
|
|
{
|
|
SSNES_ERR("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)
|
|
{
|
|
SSNES_ERR("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(xv->display, &xv->shminfo))
|
|
{
|
|
SSNES_ERR("Failed to reattch XvShm image.\n");
|
|
return false;
|
|
}
|
|
XSync(xv->display, False);
|
|
memset(xv->image->data, 128, xv->image->data_size);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void calc_out_rect(bool keep_aspect, unsigned *x, unsigned *y, unsigned *width, unsigned *height, unsigned vp_width, unsigned vp_height)
|
|
{
|
|
if (!keep_aspect)
|
|
{
|
|
*x = 0; *y = 0; *width = vp_width; *height = vp_height;
|
|
}
|
|
else
|
|
{
|
|
float desired_aspect = g_settings.video.aspect_ratio;
|
|
float device_aspect = (float)vp_width / vp_height;
|
|
|
|
// If the aspect ratios of screen and desired aspect ratio are sufficiently equal (floating point stuff),
|
|
// assume they are actually equal.
|
|
if (fabs(device_aspect - desired_aspect) < 0.0001)
|
|
{
|
|
*x = 0; *y = 0; *width = vp_width; *height = vp_height;
|
|
}
|
|
else if (device_aspect > desired_aspect)
|
|
{
|
|
float delta = (desired_aspect / device_aspect - 1.0) / 2.0 + 0.5;
|
|
*x = vp_width * (0.5 - delta); *y = 0; *width = 2.0 * vp_width * delta; *height = vp_height;
|
|
}
|
|
else
|
|
{
|
|
float delta = (device_aspect / desired_aspect - 1.0) / 2.0 + 0.5;
|
|
*x = 0; *y = vp_height * (0.5 - delta); *width = vp_width; *height = 2.0 * vp_height * delta;
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO: Is there some way to render directly like GL? :(
|
|
// Hacky C code is hacky :D Yay.
|
|
static void xv_render_msg(xv_t *xv, const char *msg, unsigned width, unsigned height)
|
|
{
|
|
#ifdef HAVE_FREETYPE
|
|
if (!xv->font)
|
|
return;
|
|
|
|
struct font_output_list out;
|
|
font_renderer_msg(xv->font, msg, &out);
|
|
struct font_output *head = out.head;
|
|
|
|
int _base_x = g_settings.video.msg_pos_x * width;
|
|
int _base_y = height - g_settings.video.msg_pos_y * height;
|
|
|
|
unsigned luma_index[2] = { xv->luma_index[0], xv->luma_index[1] };
|
|
unsigned chroma_u_index = xv->chroma_u_index;
|
|
unsigned chroma_v_index = xv->chroma_v_index;
|
|
|
|
unsigned pitch = width << 1; // YUV formats used are 16 bpp.
|
|
|
|
while (head)
|
|
{
|
|
int base_x = (_base_x + head->off_x) << 1;
|
|
base_x &= ~3; // Make sure we always start on the correct boundary so the indices are correct.
|
|
|
|
int base_y = _base_y - head->off_y;
|
|
if (base_y >= 0)
|
|
{
|
|
for (int y = 0; y < (int)head->height && (base_y + y) < (int)height; y++)
|
|
{
|
|
if (base_x < 0)
|
|
continue;
|
|
|
|
const uint8_t *a = head->output + head->pitch * y;
|
|
uint8_t *out = (uint8_t*)xv->image->data + (base_y - head->height + y) * pitch + base_x;
|
|
|
|
for (int x = 0; x < (int)(head->width << 1) && (base_x + x) < (int)pitch; x += 4)
|
|
{
|
|
unsigned alpha[2];
|
|
alpha[0] = a[(x >> 1) + 0];
|
|
|
|
if (((x >> 1) + 1) == (int)head->width) // We reached the end, uhoh. Branching like a BOSS. :D
|
|
alpha[1] = 0;
|
|
else
|
|
alpha[1] = a[(x >> 1) + 1];
|
|
|
|
unsigned alpha_sub = (alpha[0] + alpha[1]) >> 1; // Blended alpha for the sub-samples U/V channels.
|
|
|
|
for (unsigned i = 0; i < 2; i++)
|
|
{
|
|
unsigned blended = (xv->font_y * alpha[i] + ((256 - alpha[i]) * out[x + luma_index[i]])) >> 8;
|
|
out[x + luma_index[i]] = blended;
|
|
}
|
|
|
|
// Blend chroma channels
|
|
unsigned blended = (xv->font_u * alpha_sub + ((256 - alpha_sub) * out[x + chroma_u_index])) >> 8;
|
|
out[x + chroma_u_index] = blended;
|
|
|
|
blended = (xv->font_v * alpha_sub + ((256 - alpha_sub) * out[x + chroma_v_index])) >> 8;
|
|
out[x + chroma_v_index] = blended;
|
|
}
|
|
}
|
|
}
|
|
|
|
head = head->next;
|
|
}
|
|
|
|
font_renderer_free_output(&out);
|
|
#else
|
|
(void)xv;
|
|
(void)msg;
|
|
(void)width;
|
|
(void)height;
|
|
#endif
|
|
}
|
|
|
|
static bool xv_frame(void *data, const void *frame, unsigned width, unsigned height, unsigned pitch, const char *msg)
|
|
{
|
|
xv_t *xv = (xv_t*)data;
|
|
|
|
if (!check_resize(xv, width, height))
|
|
return false;
|
|
|
|
XWindowAttributes target;
|
|
XGetWindowAttributes(xv->display, xv->window, &target);
|
|
xv->render_func(xv, frame, width, height, pitch);
|
|
|
|
unsigned x, y, owidth, oheight;
|
|
calc_out_rect(xv->keep_aspect, &x, &y, &owidth, &oheight, target.width, target.height);
|
|
|
|
if (msg)
|
|
xv_render_msg(xv, msg, width << 1, height << 1);
|
|
|
|
XvShmPutImage(xv->display, xv->port, xv->window, xv->gc, xv->image,
|
|
0, 0, width << 1, height << 1,
|
|
x, y, owidth, oheight,
|
|
true);
|
|
XSync(xv->display, False);
|
|
|
|
char buf[128];
|
|
if (gfx_window_title(buf, sizeof(buf)))
|
|
XStoreName(xv->display, xv->window, buf);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool xv_alive(void *data)
|
|
{
|
|
xv_t *xv = (xv_t*)data;
|
|
|
|
XEvent event;
|
|
while (XPending(xv->display))
|
|
{
|
|
XNextEvent(xv->display, &event);
|
|
switch (event.type)
|
|
{
|
|
case ClientMessage:
|
|
if ((Atom)event.xclient.data.l[0] == xv->quit_atom)
|
|
return false;
|
|
break;
|
|
case DestroyNotify:
|
|
return false;
|
|
case MapNotify: // Find something that works better.
|
|
xv->focus = true;
|
|
break;
|
|
case UnmapNotify:
|
|
xv->focus = false;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return !g_quit;
|
|
}
|
|
|
|
static bool xv_focus(void *data)
|
|
{
|
|
xv_t *xv = (xv_t*)data;
|
|
return xv->focus;
|
|
}
|
|
|
|
|
|
static void xv_free(void *data)
|
|
{
|
|
xv_t *xv = (xv_t*)data;
|
|
XShmDetach(xv->display, &xv->shminfo);
|
|
shmdt(xv->shminfo.shmaddr);
|
|
shmctl(xv->shminfo.shmid, IPC_RMID, NULL);
|
|
XFree(xv->image);
|
|
|
|
if (xv->window)
|
|
XUnmapWindow(xv->display, xv->window);
|
|
if (xv->colormap)
|
|
XFreeColormap(xv->display, xv->colormap);
|
|
|
|
XCloseDisplay(xv->display);
|
|
|
|
free(xv->ytable);
|
|
free(xv->utable);
|
|
free(xv->vtable);
|
|
|
|
#ifdef HAVE_FREETYPE
|
|
if (xv->font)
|
|
font_renderer_free(xv->font);
|
|
#endif
|
|
|
|
free(xv);
|
|
}
|
|
|
|
const video_driver_t video_xvideo = {
|
|
xv_init,
|
|
xv_frame,
|
|
xv_set_nonblock_state,
|
|
xv_alive,
|
|
xv_focus,
|
|
NULL,
|
|
xv_free,
|
|
"xvideo"
|
|
};
|
|
|