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mpv/libvo/vo_gl2.c

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#define DISP
// this can be 3 or 4 (regarding 24bpp and 32bpp)
#define BYTES_PP 3
#define TEXTUREFORMAT_32BPP
/*
* video_out_gl.c, X11/OpenGL interface
* based on video_out_x11 by Aaron Holtzman,
* and WS opengl window manager by Pontscho/Fresh!
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
LIBVO_EXTERN(gl2)
#include <X11/Xlib.h>
#include <X11/Xutil.h>
//#include <X11/keysym.h>
#include <GL/glx.h>
#include <errno.h>
#include "yuv2rgb.h"
#include <GL/gl.h>
#include "x11_common.h"
#include "aspect.h"
#define NDEBUG
// #undef NDEBUG
static vo_info_t vo_info =
{
"X11 (OpenGL) - multiple textures version",
"gl2",
"Arpad Gereoffy & Sven Goethel",
""
};
/* private prototypes */
// static void Display_Image (unsigned char *ImageData);
/* local data */
static unsigned char *ImageData=NULL;
/* X11 related variables */
//static Display *mydisplay;
static Window mywindow;
//static GC mygc;
//static XImage *myximage;
//static int depth,mode;
//static XWindowAttributes attribs;
static int X_already_started = 0;
//static int texture_id=1;
static GLXContext wsGLXContext;
//XVisualInfo * wsVisualInfo;
static int wsGLXAttrib[] = { GLX_RGBA,
GLX_RED_SIZE,1,
GLX_GREEN_SIZE,1,
GLX_BLUE_SIZE,1,
// GLX_DEPTH_SIZE,16,
GLX_DOUBLEBUFFER,
None };
static uint32_t image_width;
static uint32_t image_height;
static uint32_t image_format;
static uint32_t image_bpp;
static uint32_t image_bytes;
static uint32_t texture_width;
static uint32_t texture_height;
static int texnumx, texnumy, memory_x_len, memory_x_start_offset, raw_line_len;
static GLfloat texpercx, texpercy;
static struct TexSquare * texgrid;
/* The squares that are tiled to make up the game screen polygon */
struct TexSquare
{
GLubyte *texture;
GLuint texobj;
int isTexture;
GLfloat fx1, fy1, fx2, fy2, fx3, fy3, fx4, fy4;
GLfloat xcov, ycov;
};
static void CalcFlatPoint(int x,int y,GLfloat *px,GLfloat *py)
{
*px=(float)x*texpercx;
if(*px>1.0) *px=1.0;
*py=(float)y*texpercy;
if(*py>1.0) *py=1.0;
}
static void initTextures()
{
unsigned char *line_1=0, *line_2=0, *mem_start=0;
struct TexSquare *tsq=0;
int e_x, e_y, s, i=0;
int x=0, y=0;
GLint format=0;
GLenum err;
/* achieve the 2**e_x:=texture_width, 2**e_y:=texture_height */
e_x=0; s=1;
while (s<texture_width)
{ s*=2; e_x++; }
texture_width=s;
e_y=0; s=1;
while (s<texture_height)
{ s*=2; e_y++; }
texture_height=s;
/* Test the max texture size */
do
{
glTexImage2D (GL_PROXY_TEXTURE_2D, 0,
BYTES_PP,
texture_width, texture_height,
0, (image_bytes==4)?GL_RGBA:GL_BGR, GL_UNSIGNED_BYTE, NULL);
glGetTexLevelParameteriv
(GL_PROXY_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format);
if (format != BYTES_PP)
{
fprintf (stderr, "GLINFO: Needed texture [%dx%d] too big, trying ",
texture_height, texture_width);
if (texture_width > texture_height)
{
e_x--;
texture_width = 1;
for (i = e_x; i > 0; i--)
texture_width *= 2;
}
else
{
e_y--;
texture_height = 1;
for (i = e_y; i > 0; i--)
texture_height *= 2;
}
fprintf (stderr, "[%dx%d] !\n", texture_height, texture_width);
if(texture_width < 64 || texture_height < 64)
{
fprintf (stderr, "GLERROR: Give up .. usable texture size not avaiable, or texture config error !\n");
exit(1);
}
}
}
while (format != BYTES_PP && texture_width > 1 && texture_height > 1);
texnumx = image_width / texture_width;
if ((image_width % texture_width) > 0)
texnumx++;
texnumy = image_height / texture_height;
if ((image_height % texture_height) > 0)
texnumy++;
/* Allocate the texture memory */
texpercx = (GLfloat) texture_width / (GLfloat) image_width;
if (texpercx > 1.0)
texpercx = 1.0;
texpercy = (GLfloat) texture_height / (GLfloat) image_height;
if (texpercy > 1.0)
texpercy = 1.0;
texgrid = (struct TexSquare *)
calloc (texnumx * texnumy, sizeof (struct TexSquare));
line_1 = (unsigned char *) ImageData;
line_2 = (unsigned char *) ImageData+(image_width*image_bytes);
mem_start = (unsigned char *) ImageData;
raw_line_len = line_2 - line_1;
memory_x_len = raw_line_len / image_bytes;
#ifndef NDEBUG
fprintf (stderr, "GLINFO: texture-usage %d*width=%d, %d*height=%d\n",
(int) texnumx, (int) texture_width, (int) texnumy,
(int) texture_height);
#endif
for (y = 0; y < texnumy; y++)
{
for (x = 0; x < texnumx; x++)
{
tsq = texgrid + y * texnumx + x;
if (x == texnumx - 1 && image_width % texture_width)
tsq->xcov =
(GLfloat) (image_width % texture_width) / (GLfloat) texture_width;
else
tsq->xcov = 1.0;
if (y == texnumy - 1 && image_height % texture_height)
tsq->ycov =
(GLfloat) (image_height % texture_height) / (GLfloat) texture_height;
else
tsq->ycov = 1.0;
CalcFlatPoint (x, y, &(tsq->fx1), &(tsq->fy1));
CalcFlatPoint (x + 1, y, &(tsq->fx2), &(tsq->fy2));
CalcFlatPoint (x + 1, y + 1, &(tsq->fx3), &(tsq->fy3));
CalcFlatPoint (x, y + 1, &(tsq->fx4), &(tsq->fy4));
/* calculate the pixel store data,
to use the machine-bitmap for our texture
*/
memory_x_start_offset = 0 * image_bytes +
x * texture_width * image_bytes;
tsq->texture = line_1 +
y * texture_height * raw_line_len +
memory_x_start_offset;
tsq->isTexture=GL_FALSE;
tsq->texobj=0;
glGenTextures (1, &(tsq->texobj));
glBindTexture (GL_TEXTURE_2D, tsq->texobj);
err = glGetError ();
if(err==GL_INVALID_ENUM)
{
fprintf (stderr, "GLERROR glBindTexture (glGenText) := GL_INVALID_ENUM, texnum x=%d, y=%d, texture=%d\n", x, y, tsq->texobj);
}
if(glIsTexture(tsq->texobj) == GL_FALSE)
{
fprintf (stderr, "GLERROR ain't a texture (glGenText): texnum x=%d, y=%d, texture=%d\n",
x, y, tsq->texobj);
} else {
tsq->isTexture=GL_TRUE;
}
glTexImage2D (GL_TEXTURE_2D, 0,
BYTES_PP,
texture_width, texture_height,
0, (image_bytes==4)?GL_RGBA:GL_BGR, GL_UNSIGNED_BYTE, NULL);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, 1.0);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
} /* for all texnumx */
} /* for all texnumy */
}
static void drawTextureDisplay ()
{
struct TexSquare *square;
int x, y, xoff=0, yoff=0, wd, ht;
GLenum err;
glColor3f(1.0,1.0,1.0);
for (y = 0; y < texnumy; y++)
{
for (x = 0; x < texnumx; x++)
{
square = texgrid + y * texnumx + x;
if(square->isTexture==GL_FALSE)
{
#ifndef NDEBUG
fprintf (stderr, "GLINFO ain't a texture(update): texnum x=%d, y=%d, texture=%d\n",
x, y, square->texobj);
#endif
continue;
}
glBindTexture (GL_TEXTURE_2D, square->texobj);
err = glGetError ();
if(err==GL_INVALID_ENUM)
{
fprintf (stderr, "GLERROR glBindTexture := GL_INVALID_ENUM, texnum x=%d, y=%d, texture=%d\n", x, y, square->texobj);
}
#ifndef NDEBUG
else if(err==GL_INVALID_OPERATION) {
fprintf (stderr, "GLERROR glBindTexture := GL_INVALID_OPERATION, texnum x=%d, y=%d, texture=%d\n", x, y, square->texobj);
}
#endif
if(glIsTexture(square->texobj) == GL_FALSE)
{
square->isTexture=GL_FALSE;
fprintf (stderr, "GLERROR ain't a texture(update): texnum x=%d, y=%d, texture=%d\n",
x, y, square->texobj);
}
/* This is the quickest way I know of to update the texture */
if (x < texnumx - 1)
wd = texture_width;
else
wd = image_width - texture_width * x;
if (y < texnumy - 1)
ht = texture_height;
else
ht = image_height - texture_height * y;
glTexSubImage2D (GL_TEXTURE_2D, 0,
xoff, yoff,
wd, ht,
(BYTES_PP==4)?GL_RGBA:GL_RGB, // format
GL_UNSIGNED_BYTE, // type
square->texture);
#ifndef NDEBUG
fprintf (stdout, "GLINFO glTexSubImage2D texnum x=%d, y=%d, %d/%d - %d/%d\n", x, y, xoff, yoff, wd, ht);
#endif
glBegin(GL_QUADS);
glTexCoord2f (0, 0);
glVertex2f (square->fx1, square->fy1);
glTexCoord2f (0, square->ycov);
glVertex2f (square->fx4, square->fy4);
glTexCoord2f (square->xcov, square->ycov);
glVertex2f (square->fx3, square->fy3);
glTexCoord2f (square->xcov, 0);
glVertex2f (square->fx2, square->fy2);
#ifndef NDEBUG
fprintf (stdout, "GLINFO GL_QUADS texnum x=%d, y=%d, %f/%f %f/%f %f/%f %f/%f\n\n", x, y, square->fx1, square->fy1, square->fx4, square->fy4,
square->fx3, square->fy3, square->fx2, square->fy2);
#endif
/*
glTexCoord2f(0,0);glVertex2i(0,0);
glTexCoord2f(0,1);glVertex2i(0,texture_height);
glTexCoord2f(1,1);glVertex2i(texture_width,texture_height);
glTexCoord2f(1,0);glVertex2i(texture_width,0);
*/
glEnd();
} /* for all texnumx */
} /* for all texnumy */
/* YES - lets catch this error ...
*/
(void) glGetError ();
}
static void resize(int x,int y){
printf("[gl] Resize: %dx%d\n",x,y);
glViewport( 0, 0, x, y );
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
//glOrtho(0, image_width, image_height, 0, -1,1);
glOrtho (0, 1, 1, 0, -1.0, 1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
/* connect to server, create and map window,
* allocate colors and (shared) memory
*/
static uint32_t
init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
{
// int screen;
int dwidth,dheight;
unsigned int fg, bg;
char *hello = (title == NULL) ? "OpenGL rulez" : title;
// char *name = ":0.0";
XSizeHints hint;
XVisualInfo *vinfo;
XEvent xev;
// XGCValues xgcv;
XSetWindowAttributes xswa;
unsigned long xswamask;
image_height = height;
image_width = width;
image_format = format;
if (X_already_started) return -1;
if(!vo_init()) return -1;
X_already_started++;
dwidth=d_width; dheight=d_height;
#ifdef X11_FULLSCREEN
if( flags&0x01 ){ // (-fs)
aspect(&d_width,&d_height,vo_screenwidth,vo_screenheight);
dwidth=d_width; dheight=d_height;
}
#endif
hint.x = 0;
hint.y = 0;
hint.width = d_width;
hint.height = d_height;
hint.flags = PPosition | PSize;
/* Get some colors */
bg = WhitePixel(mDisplay, mScreen);
fg = BlackPixel(mDisplay, mScreen);
/* Make the window */
// XGetWindowAttributes(mDisplay, DefaultRootWindow(mDisplay), &attribs);
// XMatchVisualInfo(mDisplay, screen, depth, TrueColor, &vinfo);
vinfo=glXChooseVisual( mDisplay,mScreen,wsGLXAttrib );
if (vinfo == NULL)
{
printf("[gl] no GLX support present\n");
return -1;
}
xswa.background_pixel = 0;
xswa.border_pixel = 1;
// xswa.colormap = XCreateColormap(mDisplay, mRootWin, vinfo.visual, AllocNone);
xswa.colormap = XCreateColormap(mDisplay, mRootWin, vinfo->visual, AllocNone);
xswamask = CWBackPixel | CWBorderPixel | CWColormap;
// xswamask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask | CWCursor | CWOverrideRedirect | CWSaveUnder | CWX | CWY | CWWidth | CWHeight;
mywindow = XCreateWindow(mDisplay, RootWindow(mDisplay,mScreen),
hint.x, hint.y, hint.width, hint.height, 4, vinfo->depth,CopyFromParent,vinfo->visual,xswamask,&xswa);
vo_x11_classhint( mDisplay,mywindow,"gl" );
vo_hidecursor(mDisplay,mywindow);
wsGLXContext=glXCreateContext( mDisplay,vinfo,NULL,True );
// XStoreName( wsDisplay,wsMyWin,wsSysName );
// printf("GLXcontext ok\n");
if ( flags&0x01 ) vo_x11_decoration( mDisplay,mywindow,0 );
XSelectInput(mDisplay, mywindow, StructureNotifyMask);
/* Tell other applications about this window */
XSetStandardProperties(mDisplay, mywindow, hello, hello, None, NULL, 0, &hint);
/* Map window. */
XMapWindow(mDisplay, mywindow);
/* Wait for map. */
do
{
XNextEvent(mDisplay, &xev);
}
while (xev.type != MapNotify || xev.xmap.event != mywindow);
XSelectInput(mDisplay, mywindow, NoEventMask);
glXMakeCurrent( mDisplay,mywindow,wsGLXContext );
XFlush(mDisplay);
XSync(mDisplay, False);
// mygc = XCreateGC(mDisplay, mywindow, 0L, &xgcv);
// myximage = XGetImage(mDisplay, mywindow, 0, 0,
// width, image_height, AllPlanes, ZPixmap);
// ImageData = myximage->data;
// bpp = myximage->bits_per_pixel;
//XSelectInput(mDisplay, mywindow, StructureNotifyMask); // !!!!
XSelectInput(mDisplay, mywindow, StructureNotifyMask | KeyPressMask );
// printf("Window setup ok\n");
#if 0
// If we have blue in the lowest bit then obviously RGB
mode = ((myximage->blue_mask & 0x01) != 0) ? MODE_RGB : MODE_BGR;
#ifdef WORDS_BIGENDIAN
if (myximage->byte_order != MSBFirst)
#else
if (myximage->byte_order != LSBFirst)
#endif
{
printf("[gl] no support for non-native XImage byte order!\n");
return -1;
}
printf("DEPTH=%d BPP=%d\n",depth,bpp);
#endif
/*
* If depth is 24 then it may either be a 3 or 4 byte per pixel
* format. We can't use bpp because then we would lose the
* distinction between 15/16bit depth (2 byte formate assumed).
*
* FIXME - change yuv2rgb_init to take both depth and bpp
* parameters
*/
if(format==IMGFMT_YV12){
yuv2rgb_init(8*BYTES_PP, MODE_BGR);
printf("[gl] YUV init OK!\n");
image_bpp=8*BYTES_PP;
image_bytes=BYTES_PP;
} else {
image_bpp=format&0xFF;
image_bytes=(image_bpp+7)/8;
}
ImageData=malloc(image_width*image_height*image_bytes);
memset(ImageData,128,image_width*image_height*image_bytes);
texture_width=image_width;
texture_height=image_height;
initTextures();
printf("[gl] Creating %dx%d texture...\n",texture_width,texture_height);
glDisable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE);
glDisable(GL_CULL_FACE);
glPixelStorei (GL_UNPACK_ROW_LENGTH, memory_x_len);
// glPixelStorei (GL_UNPACK_ALIGNMENT, 8); // causes non-12*n wide images to be broken
glEnable (GL_TEXTURE_2D);
drawTextureDisplay ();
printf("[gl] Creating %dx%d texture...\n",texture_width,texture_height);
/*
#if 1
// glBindTexture(GL_TEXTURE_2D, texture_id);
glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER, GL_LINEAR);
#ifdef TEXTUREFORMAT_32BPP
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, texture_width, texture_height, 0,
#else
glTexImage2D(GL_TEXTURE_2D, 0, BYTES_PP, texture_width, texture_height, 0,
#endif
(image_bytes==4)?GL_RGBA:GL_BGR, GL_UNSIGNED_BYTE, NULL);
#endif
*/
resize(d_width,d_height);
glClearColor( 1.0f,0.0f,1.0f,0.0f );
glClear( GL_COLOR_BUFFER_BIT );
// printf("OpenGL setup OK!\n");
saver_off(mDisplay); // turning off screen saver
return 0;
}
static const vo_info_t*
get_info(void)
{
return &vo_info;
}
static void
Terminate_Display_Process(void)
{
getchar(); /* wait for enter to remove window */
XDestroyWindow(mDisplay, mywindow);
XCloseDisplay(mDisplay);
X_already_started = 0;
}
static void check_events(void)
{
int e=vo_x11_check_events(mDisplay);
if(e&VO_EVENT_RESIZE) resize(vo_dwidth,vo_dheight);
}
static void draw_osd(void)
{
}
static void
flip_page(void)
{
drawTextureDisplay();
// glFlush();
glFinish();
glXSwapBuffers( mDisplay,mywindow );
}
//static inline uint32_t draw_slice_x11(uint8_t *src[], uint32_t slice_num)
static uint32_t draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
{
int i;
int dstride=w*BYTES_PP;
// dstride=(dstride+15)&(~15);
yuv2rgb(ImageData+y*raw_line_len, src[0], src[1], src[2],
w,h, dstride, stride[0],stride[1]);
// emms ();
#ifndef NDEBUG
printf("slice: %d/%d -> %d/%d (%dx%d)\n",
x, y, x+w-1, y+h-1, w, h);
#endif
return 0;
}
static inline uint32_t
draw_frame_x11_bgr(uint8_t *src[])
{
uint8_t *s=src[0];
uint8_t *d=ImageData;
uint8_t *de=d+3*image_width*image_height;
int i;
// RGB->BGR
while(d<de){
#if 1
d[0]=s[2];
d[1]=s[1];
d[2]=s[0];
s+=3;d+=3;
#else
// R1 G1 B1 R2 G2 B2
// B1 G1 R1 B2 G2 R2
unsigned int a=*((unsigned int*)s);
unsigned short b=*((unsigned short*)(s+4));
*((unsigned int*)d)=((a>>16)&0xFF)|(a&0xFF00)|((a&0xFF)<<16)|((b>>8)<<24);
*((unsigned short*)(d+4))=(b&0xFF)|((a>>24)<<8);
s+=6;d+=6;
#endif
}
for(i=0;i<image_height;i++) ImageData[image_width*BYTES_PP*i+20]=128;
// printf("draw_frame_x11_bgr\n");
// drawTextureDisplay ();
// Display_Image(ImageData);
return 0;
}
static inline uint32_t
draw_frame_x11_rgb(uint8_t *src[])
{
int i;
uint8_t *ImageData=src[0];
printf("draw_frame_x11_rgb not implemented\n");
// drawTextureDisplay ();
// Display_Image(ImageData);
return 0;
}
static uint32_t
draw_frame(uint8_t *src[])
{
uint32_t res = 0;
if((image_format&IMGFMT_RGB_MASK)==IMGFMT_RGB)
res = draw_frame_x11_rgb(src);
else
res = draw_frame_x11_bgr(src);
//flip_page();
return res;
}
static uint32_t
query_format(uint32_t format)
{
switch(format){
case IMGFMT_YV12:
case IMGFMT_RGB|24:
case IMGFMT_BGR|24:
return 1;
}
return 0;
}
static void
uninit(void)
{
saver_on(mDisplay); // screen saver back on
XDestroyWindow( mDisplay,mywindow );
}
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