X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Fbctexture.C;h=b527b4e137327ab853a7528958907338d30b56d2;hb=efb3600851fd27b13d3053ffbdb6434535580bfd;hp=1ecbfd35c856b9271b6ed6ce51e852b32a9185da;hpb=30bdb85eb33a8ee7ba675038a86c6be59c43d7bd;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/guicast/bctexture.C b/cinelerra-5.1/guicast/bctexture.C
index 1ecbfd35..b527b4e1 100644
--- a/cinelerra-5.1/guicast/bctexture.C
+++ b/cinelerra-5.1/guicast/bctexture.C
@@ -186,6 +186,21 @@ int BC_Texture::get_window_id()
 }
 
 
+void BC_Texture::draw_texture(
+	float in_x1, float in_y1, float in_x2, float in_y2,
+	float out_x1, float out_y1, float out_x2, float out_y2)
+{
+#ifdef HAVE_GL
+	glBegin(GL_QUADS);
+	glNormal3f(0, 0, 1.0);
+	glTexCoord2f(in_x1, in_y1);   glVertex3f(out_x1, out_y1, 0);
+	glTexCoord2f(in_x2, in_y1);   glVertex3f(out_x2, out_y1, 0);
+	glTexCoord2f(in_x2, in_y2);   glVertex3f(out_x2, out_y2, 0);
+	glTexCoord2f(in_x1, in_y2);   glVertex3f(out_x1, out_y2, 0);
+	glEnd();
+#endif
+}
+
 void BC_Texture::bind(int texture_unit)
 {
 #ifdef HAVE_GL
@@ -212,3 +227,33 @@ void BC_Texture::bind(int texture_unit)
 #endif
 }
 
+#ifdef HAVE_GL
+static void write_ppm(uint8_t *tp, int w, int h, const char *fmt, ...)
+{
+  va_list ap;    va_start(ap, fmt);
+  char fn[256];  vsnprintf(fn, sizeof(fn), fmt, ap);
+  va_end(ap);
+  FILE *fp = !strcmp(fn,"-") ? stdout : fopen(fn,"w");
+  if( fp ) {
+    fprintf(fp,"P6\n%d %d\n255\n",w,h);
+    fwrite(tp,3*w,h,fp);
+    if( fp != stdout ) fclose(fp);
+  }
+}
+#endif
+
+void BC_Texture::write_tex(const char *fn)
+{
+#ifdef HAVE_GL
+	int prev_id = -1;
+	glGetIntegerv(GL_ACTIVE_TEXTURE, &prev_id);
+	glActiveTexture(this->texture_id);
+	int w = get_texture_w(), h = get_texture_h();
+	uint8_t img[w*h*3];
+	glGetTexImage(GL_TEXTURE_2D, 0, GL_RGB, GL_UNSIGNED_BYTE, img);
+	write_ppm(img, w, h, "%s", fn);
+	glActiveTexture(prev_id);
+#endif
+}
+
+