diff options
Diffstat (limited to 'sys/glsink/gstgl_rgbimage.c')
| -rw-r--r-- | sys/glsink/gstgl_rgbimage.c | 399 |
1 files changed, 0 insertions, 399 deletions
diff --git a/sys/glsink/gstgl_rgbimage.c b/sys/glsink/gstgl_rgbimage.c deleted file mode 100644 index f836bc50..00000000 --- a/sys/glsink/gstgl_rgbimage.c +++ /dev/null @@ -1,399 +0,0 @@ -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gst/gst.h> - -/* gcc -ansi -pedantic on GNU/Linux causes warnings and errors - * unless this is defined: - * warning: #warning "Files using this header must be compiled with _SVID_SOURCE or _XOPEN_SOURCE" - */ -#ifndef _XOPEN_SOURCE -# define _XOPEN_SOURCE 1 -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> - -#include <X11/Xlib.h> -#include <X11/Xutil.h> -#include <GL/glx.h> -#include <GL/gl.h> -#include <GL/glu.h> -#include <math.h> - -#include "gstglsink.h" - -typedef struct _GstGLImageConnection GstGLImageConnection; - -// this contains everything to draw an image, including all necessary graphics card data. -struct _GstGLImageConnection -{ - GstImageConnection conn; - Display *dpy; // the Xlib drawing context - GLXContext ctx; // The GLX drawing context - gint w, h; - gint bpp; - - int rgbatex_id; - unsigned char *m_memory; -}; - -#define TEX_XSIZE 1024 -#define TEX_YSIZE 1024 - - -typedef struct _GstGLImage GstGLImage; -struct _GstGLImage -{ - GstImageData data; - GstGLImageConnection *conn; -}; - -static GstGLImageInfo *gst_gl_rgbimage_info (GstImageInfo * info); -static GstGLImageConnection *gst_gl_rgbimage_connection (GstImageConnection * - conn); - -static GstCaps *gst_gl_rgbimage_get_caps (GstImageInfo * info); -static GstImageConnection *gst_gl_rgbimage_set_caps (GstImageInfo * info, - GstCaps * caps); -static GstImageData *gst_gl_rgbimage_get_image (GstImageInfo * info, - GstImageConnection * conn); -static void gst_gl_rgbimage_put_image (GstImageInfo * info, - GstImageData * image); -static void gst_gl_rgbimage_free_image (GstImageData * image); -static void gst_gl_rgbimage_open_conn (GstImageConnection * conn, - GstImageInfo * info); -static void gst_gl_rgbimage_close_conn (GstImageConnection * conn, - GstImageInfo * info); -static void gst_gl_rgbimage_free_conn (GstImageConnection * conn); - -GstImagePlugin * -get_gl_rgbimage_plugin (void) -{ - static GstImagePlugin plugin = { gst_gl_rgbimage_get_caps, - gst_gl_rgbimage_set_caps, - gst_gl_rgbimage_get_image, - gst_gl_rgbimage_put_image, - gst_gl_rgbimage_free_image - }; - - return &plugin; -} - -static GstGLImageInfo * -gst_gl_rgbimage_info (GstImageInfo * info) -{ - if (info == NULL || info->id != GST_MAKE_FOURCC ('X', 'l', 'i', 'b')) { - return NULL; - } - return (GstGLImageInfo *) info; -} - -static GstGLImageConnection * -gst_gl_rgbimage_connection (GstImageConnection * conn) -{ - if (conn == NULL || conn->free_conn != gst_gl_rgbimage_free_conn) - return NULL; - return (GstGLImageConnection *) conn; -} - -GstCaps * -gst_gl_rgbimage_get_caps (GstImageInfo * info) -{ - GstCaps *caps = NULL; - Visual *visual; - int xpad; - XWindowAttributes attrib; - XImage *ximage; - GstGLImageInfo *xinfo = gst_gl_rgbimage_info (info); - - g_warning ("rgbimage get caps called, context %p, endianness %d !\n", - glXGetCurrentContext (), G_BIG_ENDIAN); - /* we don't handle this image information */ - if (xinfo == NULL) - return NULL; - - XGetWindowAttributes (xinfo->dpy, xinfo->win, &attrib); - - visual = attrib.visual; - if (attrib.depth <= 8) - xpad = 8; - else if (attrib.depth <= 16) - xpad = 16; - else - xpad = 32; - - // create a temporary image - ximage = XCreateImage (xinfo->dpy, visual, attrib.depth, ZPixmap, 0, NULL, - 100, 100, xpad, (attrib.depth + 7) / 8 * 100); - if (ximage != NULL) { - caps = - GST_CAPS_NEW ("forcing Video RGB", "video/x-raw-rgb", "format", - GST_PROPS_FOURCC (GST_STR_FOURCC ("RGB ")), "depth", GST_PROPS_INT (24), - "bpp", GST_PROPS_INT (24), "red_mask", GST_PROPS_INT (0xff), - "green_mask", GST_PROPS_INT (0xff00), "blue_mask", - GST_PROPS_INT (0xff0000), "endianness", GST_PROPS_INT (G_BIG_ENDIAN), - /*= 1234/4321 (INT) <- endianness */ - "width", GST_PROPS_INT_RANGE (0, TEX_XSIZE), /* can't have videos larger than TEX_SIZE */ - "height", GST_PROPS_INT_RANGE (0, TEX_YSIZE) - ); - XDestroyImage (ximage); - } - - printf ("GL_RGBImage: returning caps at %p", caps); - return caps; -} - -static GstImageConnection * -gst_gl_rgbimage_set_caps (GstImageInfo * info, GstCaps * caps) -{ - g_warning ("in set_caps !\n"); - - GstGLImageConnection *new = NULL; - Visual *visual; - XWindowAttributes attrib; - GstGLImageInfo *xinfo = gst_gl_rgbimage_info (info); - guint32 format; - gint depth; - gint endianness; - gint red_mask, green_mask, blue_mask; - gint width, height, bpp; - - /* check if this is the right image info */ - if (xinfo == NULL) - return NULL; - - XGetWindowAttributes (xinfo->dpy, xinfo->win, &attrib); - - visual = attrib.visual; - - gst_caps_get (caps, - "format", &format, - "depth", &depth, - "endianness", &endianness, - "red_mask", &red_mask, - "green_mask", &green_mask, - "blue_mask", &blue_mask, - "width", &width, "height", &height, "bpp", &bpp, NULL); - - /* check if the caps are ok */ - if (format != GST_MAKE_FOURCC ('R', 'G', 'B', ' ')) - return NULL; - /* if (gst_caps_get_int (caps, "bpp") != ???) return NULL; */ - //if (depth != attrib.depth) return NULL; - //if (endianness != ((ImageByteOrder (xinfo->dpy) == LSBFirst) ? G_LITTLE_ENDIAN : G_BIG_ENDIAN)) return NULL; - //if (red_mask != visual->red_mask) return NULL; - //if (green_mask != visual->green_mask) return NULL; - //if (blue_mask != visual->blue_mask) return NULL; - GST_DEBUG ("GL_RGBImage: caps %p are ok, creating image", caps); - - new = g_new (GstGLImageConnection, 1); - new->conn.open_conn = gst_gl_rgbimage_open_conn; - new->conn.close_conn = gst_gl_rgbimage_close_conn; - new->conn.free_conn = gst_gl_rgbimage_free_conn; - new->dpy = xinfo->dpy; - new->ctx = xinfo->ctx; - new->w = width; - new->h = height; - new->bpp = bpp; - - return (GstImageConnection *) new; -} - -static GstImageData * -gst_gl_rgbimage_get_image (GstImageInfo * info, GstImageConnection * conn) -{ - GstGLImage *image; - - //XWindowAttributes attrib; - GstGLImageInfo *xinfo = gst_gl_rgbimage_info (info); - GstGLImageConnection *xconn = gst_gl_rgbimage_connection (conn); - - image = g_new (GstGLImage, 1); - - /* checks */ - if (xinfo == NULL) - return NULL; - if (xconn == NULL) - return NULL; - if (xinfo->dpy != xconn->dpy) { - g_warning ("XImage: wrong x display specified in 'get_image'\n"); - return NULL; - } - - image->conn = xconn; - image->data.size = xconn->w * xconn->h * 4; - image->data.data = g_malloc (image->data.size); - if (image->data.data == NULL) { - g_warning ("GL_RGBImage: data allocation failed!"); - g_free (image); - return NULL; - } - - return (GstImageData *) image; -} - - -static void -gst_gl_rgbimage_put_image (GstImageInfo * info, GstImageData * image) -{ - float xmax, ymax; - - GstGLImageInfo *xinfo = gst_gl_rgbimage_info (info); - GstGLImage *im = (GstGLImage *) image; - - int img_width = im->conn->w; - int img_height = im->conn->h; - - g_assert (xinfo != NULL); - - // both upload the video, and redraw the screen - glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - glMatrixMode (GL_MODELVIEW); - glLoadIdentity (); - glTranslatef (0.0, 0.0, -5.0); - - glEnable (GL_TEXTURE_2D); - - if (xinfo->info.demo) { - glTranslatef (0.0, 0.0, -5.0); // make it avoid the clipping plane, zoom 2.0 instead - glRotatef (180.0 * sin (xinfo->rotX), 1, 0, 0); - glRotatef (180.0 * cos (xinfo->rotY), 0, 1, 0); - - xinfo->rotX += 0.01; - xinfo->rotY -= 0.015; - float zoom = xinfo->zoom; - - glScalef (zoom, zoom, zoom); - - if (xinfo->zoom > 2.0) - xinfo->zoomdir = -0.01; - - if (xinfo->zoom < 1.0) - xinfo->zoomdir = 0.01; - - xinfo->zoom += xinfo->zoomdir; - } - //Draws the surface rectangle - glBindTexture (GL_TEXTURE_2D, im->conn->rgbatex_id); - glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, im->conn->w, im->conn->h, GL_RGB, - GL_UNSIGNED_BYTE, im->data.data); - xmax = (float) im->conn->w / TEX_XSIZE; - ymax = (float) im->conn->h / TEX_YSIZE; - - float aspect = img_width / (float) img_height; - float hor = aspect; - - glColor4f (1, 1, 1, 1); - glBegin (GL_QUADS); - - glNormal3f (0, -1, 0); - - glTexCoord2f (xmax, 0); - glVertex3f (hor, 1, 0); - - glTexCoord2f (0, 0); - glVertex3f (-hor, 1, 0); - - glTexCoord2f (0, ymax); - glVertex3f (-hor, -1, 0); - - glTexCoord2f (xmax, ymax); - glVertex3f (hor, -1, 0); - glEnd (); - - if (xinfo->info.dumpvideo) { - static int framenr = 0; - char capfilename[255]; - static guint8 *cap_image_data = NULL, *cap_image_data2 = NULL; - int i; - - // hmmmm, is this reentrant ?! - if (cap_image_data == NULL) - cap_image_data = (guint8 *) malloc (img_width * img_height * 3); - - if (cap_image_data2 == NULL) - cap_image_data2 = (guint8 *) malloc (img_width * img_height * 3); - - printf ("Recording frame #%d\n", framenr); - glReadPixels (0, 0, img_width, img_height, GL_RGB, GL_UNSIGNED_BYTE, - cap_image_data); - // invert the pixels - for (i = 0; i < img_height; i++) - memcpy (cap_image_data2 + i * img_width * 3, - cap_image_data + (img_height - 1 - i) * img_width * 3, img_width * 3); - - sprintf (capfilename, "cap%04d.ppm", framenr); - FILE *outfile = fopen (capfilename, "wb"); - - if (outfile != NULL) { - fprintf (outfile, "P6\n"); - fprintf (outfile, "# created by raw_zb\n"); - fprintf (outfile, "%d %d\n", img_width, img_height); - fprintf (outfile, "255\n"); - fwrite (cap_image_data2, sizeof (char), img_width * img_height * 3, - outfile); - fclose (outfile); - } - framenr++; - } - - glXSwapBuffers (xinfo->dpy, xinfo->win); -} - -void -gst_gl_rgbimage_free_image (GstImageData * image) -{ - GstGLImage *im = (GstGLImage *) image; - - g_warning - ("gst_gl_rgbimage_free_image doesn't do anything yet -> freeing image\n"); - g_free (im->data.data); - g_free (im); -} - -/* Creates an OpenGL texture to upload the picture over */ -static void -gst_gl_rgbimage_open_conn (GstImageConnection * conn, GstImageInfo * info) -{ - g_warning ("Opening RGB Connection; classic OpenGL 1.2 renderer."); - - //GstGLImageInfo *xinfo = gst_gl_rgbimage_info (info); - GstGLImageConnection *xconn = gst_gl_rgbimage_connection (conn); - - glGenTextures (1, &xconn->rgbatex_id); - glBindTexture (GL_TEXTURE_2D, xconn->rgbatex_id); - glPixelStorei (GL_UNPACK_ALIGNMENT, 1); - glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); - glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); - glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, TEX_XSIZE, TEX_YSIZE, 0, GL_RGBA, - GL_UNSIGNED_BYTE, NULL); -} - -/* Deletes the creates OpenGL textures */ -static void -gst_gl_rgbimage_close_conn (GstImageConnection * conn, GstImageInfo * info) -{ - GstGLImageConnection *xconn = gst_gl_rgbimage_connection (conn); - - //GstGLImageInfo *xinfo = gst_gl_rgbimage_info (info); - - glDeleteTextures (1, &xconn->rgbatex_id); -} - -static void -gst_gl_rgbimage_free_conn (GstImageConnection * conn) -{ - GstGLImageConnection *xconn = gst_gl_rgbimage_connection (conn); - - g_assert (xconn != NULL); - - g_free (xconn); -} |