vo_gl.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 1,019 行 · 第 1/3 页

#include <mplaylib.h>
#include <mplaylib.h>
#include <mplaylib.h>
#include <math.h>

#include "config.h"
#include "mp_msg.h"
#include "subopt-helper.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "font_load.h"
#include "sub.h"

#include "gl_common.h"
#include "aspect.h"
#ifdef HAVE_NEW_GUI
#include "gui/interface.h"
#endif
#include "libass/ass.h"
#include "libass/ass_mp.h"

static vo_info_t info = 
{
  "X11 (OpenGL)",
  "gl",
  "Arpad Gereoffy <[e-mail]>",
  ""
};

LIBVO_EXTERN(gl)

#ifdef GL_WIN32
static int gl_vinfo = 0;
static HGLRC gl_context = 0;
#define update_xinerama_info w32_update_xinerama_info
#define vo_init vo_w32_init
#define vo_window vo_w32_window
#else
static XVisualInfo *gl_vinfo = NULL;
static GLXContext gl_context = 0;
static int                  wsGLXAttrib[] = { GLX_RGBA,
                                       GLX_RED_SIZE,1,
                                       GLX_GREEN_SIZE,1,
                                       GLX_BLUE_SIZE,1,
                                       GLX_DOUBLEBUFFER,
                                       None };
#endif

static int use_osd;
static int scaled_osd;
//! How many parts the OSD may consist of at most
#define MAX_OSD_PARTS 20
//! Textures for OSD
static GLuint osdtex[MAX_OSD_PARTS];
#ifndef FAST_OSD
//! Alpha textures for OSD
static GLuint osdatex[MAX_OSD_PARTS];
#endif
static GLuint *eosdtex;
static GLuint largeeosdtex[2];
//! Display lists that draw the OSD parts
static GLuint osdDispList[MAX_OSD_PARTS];
#ifndef FAST_OSD
static GLuint osdaDispList[MAX_OSD_PARTS];
#endif
static GLuint eosdDispList;
//! How many parts the OSD currently consists of
static int osdtexCnt;
static int eosdtexCnt;
static int osd_color;

static int use_aspect;
static int use_yuv;
static int lscale;
static int cscale;
static int yuvconvtype;
static int use_rectangle;
static int err_shown;
static uint32_t image_width;
static uint32_t image_height;
static uint32_t image_format;
static int many_fmts;
static int use_glFinish;
static int swap_interval;
static GLenum gl_target;
static GLint gl_texfmt;
static GLenum gl_format;
static GLenum gl_type;
static GLuint gl_buffer;
static int gl_buffersize;
static void *gl_bufferptr;
static GLuint fragprog;
static GLuint default_texs[22];
static char *custom_prog;
static char *custom_tex;
static int custom_tlin;
static int custom_trect;

static int int_pause;
static int eq_bri = 0;
static int eq_cont = 0;
static int eq_sat = 0;
static int eq_hue = 0;
static int eq_rgamma = 0;
static int eq_ggamma = 0;
static int eq_bgamma = 0;

static int texture_width;
static int texture_height;
static int mpi_flipped;
static int vo_flipped;
static int ass_border_x, ass_border_y;

static unsigned int slice_height = 1;

static void resize(int x,int y){
  mp_msg(MSGT_VO, MSGL_V, "[gl] Resize: %dx%d\n",x,y);
  if (WinID >= 0) {
    int top = 0, left = 0, w = x, h = y;
    geometry(&top, &left, &w, &h, vo_screenwidth, vo_screenheight);
    glViewport(top, left, w, h);
  } else
  glViewport( 0, 0, x, y );

  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  if (vo_fs && use_aspect) {
    int new_w, new_h;
    GLdouble scale_x, scale_y;
    aspect(&new_w, &new_h, A_ZOOM);
    panscan_calc();
    new_w += vo_panscan_x;
    new_h += vo_panscan_y;
    scale_x = (GLdouble) new_w / (GLdouble) x;
    scale_y = (GLdouble) new_h / (GLdouble) y;
    glScaled(scale_x, scale_y, 1);
    ass_border_x = (vo_screenwidth - new_w) / 2;
    ass_border_y = (vo_screenheight - new_h) / 2;
  }
  glOrtho(0, image_width, image_height, 0, -1,1);

  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();

  if (!scaled_osd) {
#ifdef HAVE_FREETYPE
  // adjust font size to display size
  force_load_font = 1;
#endif
  vo_osd_changed(OSDTYPE_OSD);
  }
  if (vo_fs && use_aspect && !vo_doublebuffering)
    glClear(GL_COLOR_BUFFER_BIT);
}

static void texSize(int w, int h, int *texw, int *texh) {
  if (use_rectangle) {
    *texw = w; *texh = h;
  } else {
    *texw = 32;
    while (*texw < w)
      *texw *= 2;
    *texh = 32;
    while (*texh < h)
      *texh *= 2;
  }
}

//! maximum size of custom fragment program
#define MAX_CUSTOM_PROG_SIZE (1024 * 1024)
static void update_yuvconv(void) {
  float bri = eq_bri / 100.0;
  float cont = (eq_cont + 100) / 100.0;
  float hue = eq_hue / 100.0 * 3.1415927;
  float sat = (eq_sat + 100) / 100.0;
  float rgamma = exp(log(8.0) * eq_rgamma / 100.0);
  float ggamma = exp(log(8.0) * eq_ggamma / 100.0);
  float bgamma = exp(log(8.0) * eq_bgamma / 100.0);
  glSetupYUVConversion(gl_target, yuvconvtype, bri, cont, hue, sat,
                       rgamma, ggamma, bgamma,
                       texture_width, texture_height);
  if (custom_prog) {
    FILE *f = fopen(custom_prog, "r");
    if (!f)
      mp_msg(MSGT_VO, MSGL_WARN,
             "[gl] Could not read customprog %s\n", custom_prog);
    else {
      char *prog = calloc(1, MAX_CUSTOM_PROG_SIZE + 1);
      fread(prog, 1, MAX_CUSTOM_PROG_SIZE, f);
      fclose(f);
      loadGPUProgram(GL_FRAGMENT_PROGRAM, prog);
      free(prog);
    }
    ProgramEnvParameter4f(GL_FRAGMENT_PROGRAM, 0,
               1.0 / texture_width, 1.0 / texture_height,
               texture_width, texture_height);
  }
  if (custom_tex) {
    FILE *f = fopen(custom_tex, "r");
    if (!f)
      mp_msg(MSGT_VO, MSGL_WARN,
             "[gl] Could not read customtex %s\n", custom_tex);
    else {
      int width, height, maxval;
      ActiveTexture(GL_TEXTURE3);
      if (glCreatePPMTex(custom_trect?GL_TEXTURE_RECTANGLE:GL_TEXTURE_2D, 0,
                     custom_tlin?GL_LINEAR:GL_NEAREST,
                     f, &width, &height, &maxval))
        ProgramEnvParameter4f(GL_FRAGMENT_PROGRAM, 1,
                   1.0 / width, 1.0 / height, width, height);
      else
        mp_msg(MSGT_VO, MSGL_WARN,
               "[gl] Error parsing customtex %s\n", custom_tex);
      fclose(f);
      ActiveTexture(GL_TEXTURE0);
    }
  }
}

/**
 * \brief remove all OSD textures and display-lists, thus clearing it.
 */
static void clearOSD(void) {
  int i;
  if (!osdtexCnt)
    return;
  glDeleteTextures(osdtexCnt, osdtex);
#ifndef FAST_OSD
  glDeleteTextures(osdtexCnt, osdatex);
  for (i = 0; i < osdtexCnt; i++)
    glDeleteLists(osdaDispList[i], 1);
#endif
  for (i = 0; i < osdtexCnt; i++)
    glDeleteLists(osdDispList[i], 1);
  osdtexCnt = 0;
}

/**
 * \brief remove textures, display list and free memory used by EOSD
 */
static void clearEOSD(void) {
  if (eosdDispList)
    glDeleteLists(eosdDispList, 1);
  eosdDispList = 0;
  if (eosdtexCnt)
    glDeleteTextures(eosdtexCnt, eosdtex);
  eosdtexCnt = 0;
  free(eosdtex);
  eosdtex = NULL;
}

/**
 * \brief construct display list from ass image list
 * \param img image list to create OSD from.
 *            A value of NULL has the same effect as clearEOSD()
 */
static void genEOSD(mp_eosd_images_t *imgs) {
  int sx, sy;
  int tinytexcur = 0;
  int smalltexcur = 0;
  GLuint *curtex;
  GLint scale_type = (scaled_osd) ? GL_LINEAR : GL_NEAREST;
  ass_image_t *img = imgs->imgs;
  ass_image_t *i;

  if (imgs->changed == 0) // there are elements, but they are unchanged
      return;
  if (img && imgs->changed == 1) // there are elements, but they just moved
      goto skip_upload;

  clearEOSD();
  if (!img)
    return;
  if (!largeeosdtex[0]) {
    glGenTextures(2, largeeosdtex);
    BindTexture(gl_target, largeeosdtex[0]);
    glCreateClearTex(gl_target, GL_ALPHA, scale_type, 512, 512, 0);
    BindTexture(gl_target, largeeosdtex[1]);
    glCreateClearTex(gl_target, GL_ALPHA, scale_type, 512, 512, 0);
  }
  for (i = img; i; i = i->next)
  {
    if (i->w <= 0 || i->h <= 0 || i->stride < i->w)
      continue;
    if (i->w < 16 && i->h < 16 && tinytexcur < 1024)
      tinytexcur++;
    else if (i->w < 32 && i->h < 32 && smalltexcur < 256)
      smalltexcur++;
    else
      eosdtexCnt++;
  }
  mp_msg(MSGT_VO, MSGL_DBG2, "EOSD counts (tiny, small, all): %i, %i, %i\n",
         tinytexcur, smalltexcur, eosdtexCnt);
  if (eosdtexCnt) {
    eosdtex = calloc(eosdtexCnt, sizeof(GLuint));
    glGenTextures(eosdtexCnt, eosdtex);
  }
  tinytexcur = smalltexcur = 0;
  for (i = img, curtex = eosdtex; i; i = i->next) {
    int x = 0, y = 0;
    if (i->w <= 0 || i->h <= 0 || i->stride < i->w) {
      mp_msg(MSGT_VO, MSGL_V, "Invalid dimensions OSD for part!\n");
      continue;
    }
    if (i->w < 16 && i->h < 16 && tinytexcur < 1024) {
      x = (tinytexcur & 31) << 4;
      y = (tinytexcur >> 5) << 4;
      BindTexture(gl_target, largeeosdtex[0]);
      tinytexcur++;
    } else if (i->w < 32 && i->h < 32 && smalltexcur < 256) {
      x = (smalltexcur & 15) << 5;
      y = (smalltexcur >> 4) << 5;
      BindTexture(gl_target, largeeosdtex[1]);
      smalltexcur++;
    } else {
      texSize(i->w, i->h, &sx, &sy);
      BindTexture(gl_target, *curtex++);
      glCreateClearTex(gl_target, GL_ALPHA, scale_type, sx, sy, 0);
    }
    glUploadTex(gl_target, GL_ALPHA, GL_UNSIGNED_BYTE, i->bitmap, i->stride,
                x, y, i->w, i->h, 0);
  }
  eosdDispList = glGenLists(1);
skip_upload:
  glNewList(eosdDispList, GL_COMPILE);
  tinytexcur = smalltexcur = 0;
  for (i = img, curtex = eosdtex; i; i = i->next) {
    int x = 0, y = 0;
    if (i->w <= 0 || i->h <= 0 || i->stride < i->w)
      continue;
    glColor4ub(i->color >> 24, (i->color >> 16) & 0xff, (i->color >> 8) & 0xff, 255 - (i->color & 0xff));
    if (i->w < 16 && i->h < 16 && tinytexcur < 1024) {
      x = (tinytexcur & 31) << 4;
      y = (tinytexcur >> 5) << 4;
      sx = sy = 512;
      BindTexture(gl_target, largeeosdtex[0]);
      tinytexcur++;
    } else if (i->w < 32 && i->h < 32 && smalltexcur < 256) {
      x = (smalltexcur & 15) << 5;
      y = (smalltexcur >> 4) << 5;