vo_dga.c

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· C语言 代码 · 共 989 行 · 第 1/3 页

/*
 *
 * X11 DGA Interface
 *
 * Copyright ( C ) 2001, Andreas Ackermann. All Rights Reserved.
 *
 * <[e-mail]>
 *
 * Sourceforge username: acki2
 * 
 */

#include <mplaylib.h>
#include <mplaylib.h>
#include <mplaylib.h>
#include <errno.h>

#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "aspect.h"
#include "x11_common.h"
#include "fastmemcpy.h"
#include "mp_msg.h"

#include <X11/Xlib.h>
#include <X11/extensions/xf86dga.h>

#ifdef HAVE_XF86VM
#include <X11/extensions/xf86vmode.h>
#endif

static vo_info_t info = {
#ifdef HAVE_DGA2
    "DGA ( Direct Graphic Access V2.0 )",
#else
#ifdef HAVE_XF86VM
    "DGA ( Direct Graphic Access V1.0+XF86VidModeExt. )",
#else
    "DGA ( Direct Graphic Access V1.0 )",
#endif
#endif
    "dga",
    "Andreas Ackermann <[e-mail]>",
    ""
};

LIBVO_EXTERN(dga)
//------------------------------------------------------------------
//#define BITSPP (vo_dga_modes[vo_dga_active_mode].vdm_bitspp)
//#define BYTESPP (vo_dga_modes[vo_dga_active_mode].vdm_bytespp)
#define VO_DGA_INVALID_RES 100000
#define HW_MODE (vo_dga_modes[vo_dga_hw_mode])
#define SRC_MODE (vo_dga_modes[vo_dga_src_mode])
struct vd_modes
{
    int vdm_mplayer_depth;
    int vdm_supported;
    int vdm_depth;
    int vdm_bitspp;
    int vdm_bytespp;
    int vdm_rmask;
    int vdm_gmask;
    int vdm_bmask;
    int vdm_hw_mode;
};

//------------------------------------------------------------------

static struct vd_modes vo_dga_modes[] = {
    // these entries describe HW modes
    // however, we use the same entries to tell mplayer what we support
    // so the last two values describe, which HW mode to use and which conversion 
    // function to use for a mode that is not supported by HW

    {0, 0, 0, 0, 0, 0, 0, 0, 0,},
    {15, 0, 15, 16, 2, 0x7c00, 0x03e0, 0x001f, 2,},
    {16, 0, 16, 16, 2, 0xf800, 0x07e0, 0x001f, 2,},
    {24, 0, 24, 24, 3, 0xff0000, 0x00ff00, 0x0000ff, 4},
    {32, 0, 24, 32, 4, 0x00ff0000, 0x0000ff00, 0x000000ff, 4}
};

static int vo_dga_mode_num =
    sizeof(vo_dga_modes) / sizeof(struct vd_modes);

// enable a HW mode (by description)
static int vd_EnableMode(int depth, int bitspp,
                         int rmask, int gmask, int bmask)
{
    int i;

    for (i = 1; i < vo_dga_mode_num; i++)
    {
        if (vo_dga_modes[i].vdm_depth == depth &&
            vo_dga_modes[i].vdm_bitspp == bitspp &&
            vo_dga_modes[i].vdm_rmask == rmask &&
            vo_dga_modes[i].vdm_gmask == gmask &&
            vo_dga_modes[i].vdm_bmask == bmask)
        {
            vo_dga_modes[i].vdm_supported = 1;
            vo_dga_modes[i].vdm_hw_mode = i;
            return i;
        }
    }
    return 0;
}

static int vd_ModeEqual(int depth, int bitspp,
                        int rmask, int gmask, int bmask, int index)
{
    return ((vo_dga_modes[index].vdm_depth == depth &&
             vo_dga_modes[index].vdm_bitspp == bitspp &&
             vo_dga_modes[index].vdm_rmask == rmask &&
             vo_dga_modes[index].vdm_gmask == gmask &&
             vo_dga_modes[index].vdm_bmask == bmask) ? 1 : 0);
}


// enable a HW mode (mplayer_depth decides which)
static int vd_ValidateMode(int mplayer_depth)
{
    int i;

    if (mplayer_depth == 0)
        return 0;
    for (i = 1; i < vo_dga_mode_num; i++)
    {
        if (vo_dga_modes[i].vdm_mplayer_depth == mplayer_depth)
        {
            vo_dga_modes[i].vdm_supported = 1;
            vo_dga_modes[i].vdm_hw_mode = i;
            return i;
        }
    }
    return 0;
}

// do we support this mode? (not important whether native or conversion)
static int vd_ModeValid(int mplayer_depth)
{
    int i;

    if (mplayer_depth == 0)
        return 0;
    for (i = 1; i < vo_dga_mode_num; i++)
    {
        if (vo_dga_modes[i].vdm_mplayer_depth == mplayer_depth &&
            vo_dga_modes[i].vdm_supported != 0)
        {
            return i;
        }
    }
    return 0;
}

static char *vd_GetModeString(int index)
{

#define VO_DGA_MAX_STRING_LEN 100
    static char stringbuf[VO_DGA_MAX_STRING_LEN];

    stringbuf[VO_DGA_MAX_STRING_LEN - 1] = 0;
    snprintf(stringbuf, VO_DGA_MAX_STRING_LEN - 2,
             "depth=%d, bpp=%d, r=%06x, g=%06x, b=%06x, %s (-bpp %d)",
             vo_dga_modes[index].vdm_depth,
             vo_dga_modes[index].vdm_bitspp,
             vo_dga_modes[index].vdm_rmask,
             vo_dga_modes[index].vdm_gmask,
             vo_dga_modes[index].vdm_bmask,
             vo_dga_modes[index].
             vdm_supported ? "native" : "not supported",
             vo_dga_modes[index].vdm_mplayer_depth);
    return stringbuf;
}

//-----------------------------------------------------------------

#if defined(HAVE_XF86VM) && !defined(HAVE_DGA2)
static XF86VidModeModeInfo **vo_dga_vidmodes = NULL;
#endif


static int vo_dga_src_format;
static int vo_dga_width;        // bytes per line in framebuffer
static int vo_dga_vp_width;     // visible pixels per line in 

                                         // framebuffer
static int vo_dga_vp_height;    // visible lines in framebuffer
static int vo_dga_is_running = 0;
static int vo_dga_src_width;    // width of video in pixels
static int vo_dga_src_height;   // height of video in pixels
static int vo_dga_src_offset = 0;       // offset in src
static int vo_dga_vp_offset = 0;        // offset in dest
static int vo_dga_bytes_per_line;       // bytes per line to copy
static int vo_dga_vp_skip;      // dto. for dest 
static int vo_dga_lines;        // num of lines to copy                                
static int vo_dga_hw_mode = 0;  // index in mode list that is actually

                                         // used by framebuffer
static int vo_dga_src_mode = 0; // index in mode list that is used by 

                                         // codec
static int vo_dga_XServer_mode = 0;     // index in mode list for resolution

#ifdef HAVE_DGA2
static XDGAMode *vo_modelines;
static int vo_modecount;
#endif

#define MAX_NR_VIDEO_BUFFERS 3

#define CURRENT_VIDEO_BUFFER \
        (vo_dga_video_buffer[vo_dga_current_video_buffer])

static int vo_dga_nr_video_buffers;     // Total number of frame buffers.
static int vo_dga_current_video_buffer; // Buffer available for rendering.

static struct video_buffer
{
    int y;
    uint8_t *data;
} vo_dga_video_buffer[MAX_NR_VIDEO_BUFFERS];

/* saved src and dst dimensions for SwScaler */
static unsigned int scale_srcW = 0,
    scale_dstW = 0, scale_srcH = 0, scale_dstH = 0;

//---------------------------------------------------------

static void draw_alpha(int x0, int y0, int w, int h, unsigned char *src,
                       unsigned char *srca, int stride)
{

    char *d;
    unsigned int offset;
    int buffer_stride;

    offset = vo_dga_width * y0 + x0;
    buffer_stride = vo_dga_width;
    d = CURRENT_VIDEO_BUFFER.data + vo_dga_vp_offset;

    switch (HW_MODE.vdm_mplayer_depth)
    {

        case 32:
            vo_draw_alpha_rgb32(w, h, src, srca, stride, d + 4 * offset,
                                4 * buffer_stride);
            break;
        case 24:
            vo_draw_alpha_rgb24(w, h, src, srca, stride, d + 3 * offset,
                                3 * buffer_stride);
            break;
        case 15:
            vo_draw_alpha_rgb15(w, h, src, srca, stride, d + 2 * offset,
                                2 * buffer_stride);
            break;
        case 16:
            vo_draw_alpha_rgb16(w, h, src, srca, stride, d + 2 * offset,
                                2 * buffer_stride);
            break;
    }
}


//---------------------------------------------------------




// quick & dirty - for debugging only 
#if 0
static void fillblock(char *strt, int yoff, int lines, int val)
{
    char *i;

    for (i = strt + yoff * vo_dga_width * HW_MODE.vdm_bytespp;
         i < strt + (lines + yoff) * vo_dga_width * HW_MODE.vdm_bytespp;)
    {
        *i++ = val;
    }
}
#endif

//---------------------------------------------------------

static int draw_frame(uint8_t * src[])
{

    int numlines = vo_dga_lines;

    char *s, *d;

    s = *src;
    d = CURRENT_VIDEO_BUFFER.data + vo_dga_vp_offset;

    mem2agpcpy_pic(d, s,
                   vo_dga_bytes_per_line,
                   numlines,
                   vo_dga_bytes_per_line + vo_dga_vp_skip,
                   vo_dga_bytes_per_line);

    // DBG-COde

#if 0
    d = CURRENT_VIDEO_BUFFER.data + vo_dga_vp_offset;
    fillblock(d, 0, 10, 0x800000ff);
    fillblock(d, 10, 10, 0x8000ff00);
    fillblock(d, 20, 10, 0x80ff0000);
    fillblock(d, 30, 10, 0xff0000ff);
    fillblock(d, 40, 10, 0x800000ff);
    fillblock(d, 50, 10, 0x0f0000ff);
#endif
    return 0;
}

//---------------------------------------------------------

static void check_events(void)
{
    vo_x11_check_events(mDisplay);
}

//---------------------------------------------------------

#include "sub.h"

static void draw_osd(void)
{
    vo_draw_text(vo_dga_src_width, vo_dga_src_height, draw_alpha);
}