eglglessink: Some refactoring as preparation for platform specific rendering

ext/eglgles/gsteglglessink.c

@@ -1150,15 +1150,110 @@ gst_eglglessink_context_make_current (GstEglGlesSink * eglglessink,
 }
 
 static gboolean
-gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
+create_shader_program (GstEglGlesSink * eglglessink, GLuint * prog,
+    GLuint * vert, GLuint * frag, const gchar * vert_text,
+    const gchar * frag_text)
 {
   GLint test;
-  GLboolean ret;
   GLchar *info_log;
+
+  /* Build shader program for video texture rendering */
+  *vert = glCreateShader (GL_VERTEX_SHADER);
+  GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d", vert_text, *vert);
+  glShaderSource (*vert, 1, &vert_text, NULL);
+  if (got_gl_error ("glShaderSource vertex"))
+    goto HANDLE_ERROR;
+
+  glCompileShader (*vert);
+  if (got_gl_error ("glCompileShader vertex"))
+    goto HANDLE_ERROR;
+
+  glGetShaderiv (*vert, GL_COMPILE_STATUS, &test);
+  if (test != GL_FALSE)
+    GST_DEBUG_OBJECT (eglglessink, "Successfully compiled vertex shader");
+  else {
+    GST_ERROR_OBJECT (eglglessink, "Couldn't compile vertex shader");
+    glGetShaderiv (*vert, GL_INFO_LOG_LENGTH, &test);
+    info_log = g_new0 (GLchar, test);
+    glGetShaderInfoLog (*vert, test, NULL, info_log);
+    GST_INFO_OBJECT (eglglessink, "Compilation info log:\n%s", info_log);
+    g_free (info_log);
+    goto HANDLE_ERROR;
+  }
+
+  *frag = glCreateShader (GL_FRAGMENT_SHADER);
+  GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d", frag_text, *frag);
+  glShaderSource (*frag, 1, &frag_text, NULL);
+  if (got_gl_error ("glShaderSource fragment"))
+    goto HANDLE_ERROR;
+
+  glCompileShader (*frag);
+  if (got_gl_error ("glCompileShader fragment"))
+    goto HANDLE_ERROR;
+
+  glGetShaderiv (*frag, GL_COMPILE_STATUS, &test);
+  if (test != GL_FALSE)
+    GST_DEBUG_OBJECT (eglglessink, "Successfully compiled fragment shader");
+  else {
+    GST_ERROR_OBJECT (eglglessink, "Couldn't compile fragment shader");
+    glGetShaderiv (*frag, GL_INFO_LOG_LENGTH, &test);
+    info_log = g_new0 (GLchar, test);
+    glGetShaderInfoLog (*frag, test, NULL, info_log);
+    GST_INFO_OBJECT (eglglessink, "Compilation info log:\n%s", info_log);
+    g_free (info_log);
+    goto HANDLE_ERROR;
+  }
+
+  *prog = glCreateProgram ();
+  if (got_gl_error ("glCreateProgram"))
+    goto HANDLE_ERROR;
+  glAttachShader (*prog, *vert);
+  if (got_gl_error ("glAttachShader vertices"))
+    goto HANDLE_ERROR;
+  glAttachShader (*prog, *frag);
+  if (got_gl_error ("glAttachShader fragments"))
+    goto HANDLE_ERROR;
+  glLinkProgram (*prog);
+  glGetProgramiv (*prog, GL_LINK_STATUS, &test);
+  if (test != GL_FALSE) {
+    GST_DEBUG_OBJECT (eglglessink, "GLES: Successfully linked program");
+  } else {
+    GST_ERROR_OBJECT (eglglessink, "Couldn't link program");
+    goto HANDLE_ERROR;
+  }
+
+  return TRUE;
+
+HANDLE_ERROR:
+  {
+    if (*frag && *prog)
+      glDetachShader (*prog, *frag);
+    if (*vert && *prog)
+      glDetachShader (*prog, *vert);
+    if (*prog)
+      glDeleteProgram (*prog);
+    if (*frag)
+      glDeleteShader (*frag);
+    if (*vert)
+      glDeleteShader (*vert);
+    *prog = 0;
+    *frag = 0;
+    *vert = 0;
+
+    return FALSE;
+  }
+}
+
+static gboolean
+gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
+{
+  GLboolean ret;
   EGLint display_par;
   const gchar *texnames[3] = { NULL, };
-  gchar *tmp_prog = NULL;
+  gchar *frag_prog = NULL;
+  gboolean free_frag_prog = FALSE;
   EGLint swap_behavior;
+  gint i;
 
   GST_DEBUG_OBJECT (eglglessink, "Enter EGL surface setup");
 
@@ -1236,41 +1331,11 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
   }
 
   /* Build shader program for video texture rendering */
-  eglglessink->eglglesctx.vertshader[0] = glCreateShader (GL_VERTEX_SHADER);
-  GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d", vert_COPY_prog,
-      eglglessink->eglglesctx.vertshader[0]);
-  glShaderSource (eglglessink->eglglesctx.vertshader[0], 1, &vert_COPY_prog,
-      NULL);
-  if (got_gl_error ("glShaderSource vertex"))
-    goto HANDLE_ERROR;
 
-  glCompileShader (eglglessink->eglglesctx.vertshader[0]);
-  if (got_gl_error ("glCompileShader vertex"))
-    goto HANDLE_ERROR;
-
-  glGetShaderiv (eglglessink->eglglesctx.vertshader[0], GL_COMPILE_STATUS,
-      &test);
-  if (test != GL_FALSE)
-    GST_DEBUG_OBJECT (eglglessink, "Successfully compiled vertex shader");
-  else {
-    GST_ERROR_OBJECT (eglglessink, "Couldn't compile vertex shader");
-    glGetShaderiv (eglglessink->eglglesctx.vertshader[0], GL_INFO_LOG_LENGTH,
-        &test);
-    info_log = g_new0 (GLchar, test);
-    glGetShaderInfoLog (eglglessink->eglglesctx.vertshader[0], test, NULL,
-        info_log);
-    GST_INFO_OBJECT (eglglessink, "Compilation info log:\n%s", info_log);
-    g_free (info_log);
-    goto HANDLE_ERROR;
-  }
-
-  eglglessink->eglglesctx.fragshader[0] = glCreateShader (GL_FRAGMENT_SHADER);
   switch (eglglessink->configured_info.finfo->format) {
     case GST_VIDEO_FORMAT_AYUV:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d", frag_AYUV_prog,
+      frag_prog = (gchar *) frag_AYUV_prog;
-          eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = FALSE;
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1, &frag_AYUV_prog,
-          NULL);
       eglglessink->eglglesctx.n_textures = 1;
       texnames[0] = "tex";
       break;
@@ -1279,61 +1344,44 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
     case GST_VIDEO_FORMAT_YV12:
     case GST_VIDEO_FORMAT_Y42B:
     case GST_VIDEO_FORMAT_Y41B:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d",
+      frag_prog = (gchar *) frag_PLANAR_YUV_prog;
-          frag_PLANAR_YUV_prog, eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = FALSE;
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1,
-          &frag_PLANAR_YUV_prog, NULL);
       eglglessink->eglglesctx.n_textures = 3;
       texnames[0] = "Ytex";
       texnames[1] = "Utex";
       texnames[2] = "Vtex";
       break;
     case GST_VIDEO_FORMAT_YUY2:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d",
+      frag_prog = g_strdup_printf (frag_YUY2_YVYU_UYVY_prog, 'r', 'g', 'a');
-          frag_YUY2_YVYU_UYVY_prog, eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = TRUE;
-      tmp_prog = g_strdup_printf (frag_YUY2_YVYU_UYVY_prog, 'r', 'g', 'a');
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1,
-          (const GLchar **) &tmp_prog, NULL);
       eglglessink->eglglesctx.n_textures = 2;
       texnames[0] = "Ytex";
       texnames[1] = "UVtex";
       break;
     case GST_VIDEO_FORMAT_YVYU:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d",
+      frag_prog = g_strdup_printf (frag_YUY2_YVYU_UYVY_prog, 'r', 'a', 'g');
-          frag_YUY2_YVYU_UYVY_prog, eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = TRUE;
-      tmp_prog = g_strdup_printf (frag_YUY2_YVYU_UYVY_prog, 'r', 'a', 'g');
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1,
-          (const GLchar **) &tmp_prog, NULL);
       eglglessink->eglglesctx.n_textures = 2;
       texnames[0] = "Ytex";
       texnames[1] = "UVtex";
       break;
     case GST_VIDEO_FORMAT_UYVY:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d",
+      frag_prog = g_strdup_printf (frag_YUY2_YVYU_UYVY_prog, 'a', 'r', 'b');
-          frag_YUY2_YVYU_UYVY_prog, eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = TRUE;
-      tmp_prog = g_strdup_printf (frag_YUY2_YVYU_UYVY_prog, 'a', 'r', 'b');
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1,
-          (const GLchar **) &tmp_prog, NULL);
       eglglessink->eglglesctx.n_textures = 2;
       texnames[0] = "Ytex";
       texnames[1] = "UVtex";
       break;
     case GST_VIDEO_FORMAT_NV12:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d",
+      frag_prog = g_strdup_printf (frag_NV12_NV21_prog, 'r', 'a');
-          frag_NV12_NV21_prog, eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = TRUE;
-      tmp_prog = g_strdup_printf (frag_NV12_NV21_prog, 'r', 'a');
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1,
-          (const GLchar **) &tmp_prog, NULL);
       eglglessink->eglglesctx.n_textures = 2;
       texnames[0] = "Ytex";
       texnames[1] = "UVtex";
       break;
     case GST_VIDEO_FORMAT_NV21:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d",
+      frag_prog = g_strdup_printf (frag_NV12_NV21_prog, 'a', 'r');
-          frag_NV12_NV21_prog, eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = TRUE;
-      tmp_prog = g_strdup_printf (frag_NV12_NV21_prog, 'a', 'r');
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1,
-          (const GLchar **) &tmp_prog, NULL);
       eglglessink->eglglesctx.n_textures = 2;
       texnames[0] = "Ytex";
       texnames[1] = "UVtex";
@@ -1341,31 +1389,22 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
     case GST_VIDEO_FORMAT_BGR:
     case GST_VIDEO_FORMAT_BGRx:
     case GST_VIDEO_FORMAT_BGRA:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d",
+      frag_prog = g_strdup_printf (frag_REORDER_prog, 'b', 'g', 'r');
-          frag_REORDER_prog, eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = TRUE;
-      tmp_prog = g_strdup_printf (frag_REORDER_prog, 'b', 'g', 'r');
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1,
-          (const GLchar **) &tmp_prog, NULL);
       eglglessink->eglglesctx.n_textures = 1;
       texnames[0] = "tex";
       break;
     case GST_VIDEO_FORMAT_xRGB:
     case GST_VIDEO_FORMAT_ARGB:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d",
+      frag_prog = g_strdup_printf (frag_REORDER_prog, 'g', 'b', 'a');
-          frag_REORDER_prog, eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = TRUE;
-      tmp_prog = g_strdup_printf (frag_REORDER_prog, 'g', 'b', 'a');
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1,
-          (const GLchar **) &tmp_prog, NULL);
       eglglessink->eglglesctx.n_textures = 1;
       texnames[0] = "tex";
       break;
     case GST_VIDEO_FORMAT_xBGR:
     case GST_VIDEO_FORMAT_ABGR:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d",
+      frag_prog = g_strdup_printf (frag_REORDER_prog, 'a', 'b', 'g');
-          frag_REORDER_prog, eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = TRUE;
-      tmp_prog = g_strdup_printf (frag_REORDER_prog, 'a', 'b', 'g');
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1,
-          (const GLchar **) &tmp_prog, NULL);
       eglglessink->eglglesctx.n_textures = 1;
       texnames[0] = "tex";
       break;
@@ -1373,10 +1412,8 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
     case GST_VIDEO_FORMAT_RGBx:
     case GST_VIDEO_FORMAT_RGBA:
     case GST_VIDEO_FORMAT_RGB16:
-      GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d", frag_COPY_prog,
+      frag_prog = (gchar *) frag_COPY_prog;
-          eglglessink->eglglesctx.fragshader[0]);
+      free_frag_prog = FALSE;
-      glShaderSource (eglglessink->eglglesctx.fragshader[0], 1, &frag_COPY_prog,
-          NULL);
       eglglessink->eglglesctx.n_textures = 1;
       texnames[0] = "tex";
       break;
@@ -1385,61 +1422,30 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
       break;
   }
 
-  if (got_gl_error ("glShaderSource fragment"))
+  if (!create_shader_program (eglglessink,
-    goto HANDLE_ERROR;
+          &eglglessink->eglglesctx.glslprogram[0],
-
+          &eglglessink->eglglesctx.vertshader[0],
-  glCompileShader (eglglessink->eglglesctx.fragshader[0]);
+          &eglglessink->eglglesctx.fragshader[0], vert_COPY_prog, frag_prog)) {
-  if (got_gl_error ("glCompileShader fragment"))
+    if (free_frag_prog)
-    goto HANDLE_ERROR;
+      g_free (frag_prog);
-
+    frag_prog = NULL;
-  glGetShaderiv (eglglessink->eglglesctx.fragshader[0], GL_COMPILE_STATUS,
-      &test);
-  if (test != GL_FALSE)
-    GST_DEBUG_OBJECT (eglglessink, "Successfully compiled fragment shader");
-  else {
-    GST_ERROR_OBJECT (eglglessink, "Couldn't compile fragment shader");
-    glGetShaderiv (eglglessink->eglglesctx.fragshader[0], GL_INFO_LOG_LENGTH,
-        &test);
-    info_log = g_new0 (GLchar, test);
-    glGetShaderInfoLog (eglglessink->eglglesctx.fragshader[0], test, NULL,
-        info_log);
-    GST_INFO_OBJECT (eglglessink, "Compilation info log:\n%s", info_log);
-    g_free (info_log);
-    goto HANDLE_ERROR;
-  }
-
-  eglglessink->eglglesctx.glslprogram[0] = glCreateProgram ();
-  if (got_gl_error ("glCreateProgram"))
-    goto HANDLE_ERROR;
-  glAttachShader (eglglessink->eglglesctx.glslprogram[0],
-      eglglessink->eglglesctx.vertshader[0]);
-  if (got_gl_error ("glAttachShader vertices"))
-    goto HANDLE_ERROR;
-  glAttachShader (eglglessink->eglglesctx.glslprogram[0],
-      eglglessink->eglglesctx.fragshader[0]);
-  if (got_gl_error ("glAttachShader fragments"))
-    goto HANDLE_ERROR;
-  glLinkProgram (eglglessink->eglglesctx.glslprogram[0]);
-  glGetProgramiv (eglglessink->eglglesctx.glslprogram[0], GL_LINK_STATUS,
-      &test);
-  if (test != GL_FALSE)
-    GST_DEBUG_OBJECT (eglglessink, "GLES: Successfully linked program");
-  else {
-    GST_ERROR_OBJECT (eglglessink, "Couldn't link program");
     goto HANDLE_ERROR;
   }
+  if (free_frag_prog)
+    g_free (frag_prog);
+  frag_prog = NULL;
 
   eglglessink->eglglesctx.position_loc[0] =
       glGetAttribLocation (eglglessink->eglglesctx.glslprogram[0], "position");
-  eglglessink->eglglesctx.texpos_loc =
+  eglglessink->eglglesctx.texpos_loc[0] =
       glGetAttribLocation (eglglessink->eglglesctx.glslprogram[0], "texpos");
-  eglglessink->eglglesctx.tex_scale_loc[0] =
+  eglglessink->eglglesctx.tex_scale_loc[0][0] =
       glGetUniformLocation (eglglessink->eglglesctx.glslprogram[0],
       "tex_scale0");
-  eglglessink->eglglesctx.tex_scale_loc[1] =
+  eglglessink->eglglesctx.tex_scale_loc[0][1] =
       glGetUniformLocation (eglglessink->eglglesctx.glslprogram[0],
       "tex_scale1");
-  eglglessink->eglglesctx.tex_scale_loc[2] =
+  eglglessink->eglglesctx.tex_scale_loc[0][2] =
       glGetUniformLocation (eglglessink->eglglesctx.glslprogram[0],
       "tex_scale2");
 
@@ -1447,88 +1453,25 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
   if (got_gl_error ("glEnableVertexAttribArray"))
     goto HANDLE_ERROR;
 
-  glEnableVertexAttribArray (eglglessink->eglglesctx.texpos_loc);
+  glEnableVertexAttribArray (eglglessink->eglglesctx.texpos_loc[0]);
   if (got_gl_error ("glEnableVertexAttribArray"))
     goto HANDLE_ERROR;
 
+  for (i = 0; i < eglglessink->eglglesctx.n_textures; i++) {
+    eglglessink->eglglesctx.tex_loc[0][i] =
+        glGetUniformLocation (eglglessink->eglglesctx.glslprogram[0],
+        texnames[i]);
+  }
+
   if (!eglglessink->eglglesctx.buffer_preserved) {
     /* Build shader program for black borders */
-    eglglessink->eglglesctx.vertshader[1] = glCreateShader (GL_VERTEX_SHADER);
+    if (!create_shader_program (eglglessink,
-    GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d",
+            &eglglessink->eglglesctx.glslprogram[1],
-        vert_COPY_prog_no_tex, eglglessink->eglglesctx.vertshader[1]);
+            &eglglessink->eglglesctx.vertshader[1],
-    glShaderSource (eglglessink->eglglesctx.vertshader[1], 1,
+            &eglglessink->eglglesctx.fragshader[1], vert_COPY_prog_no_tex,
-        &vert_COPY_prog_no_tex, NULL);
+            frag_BLACK_prog))
-    if (got_gl_error ("glShaderSource vertex"))
       goto HANDLE_ERROR;
 
-    glCompileShader (eglglessink->eglglesctx.vertshader[1]);
-    if (got_gl_error ("glCompileShader vertex"))
-      goto HANDLE_ERROR;
-
-    glGetShaderiv (eglglessink->eglglesctx.vertshader[1], GL_COMPILE_STATUS,
-        &test);
-    if (test != GL_FALSE)
-      GST_DEBUG_OBJECT (eglglessink, "Successfully compiled vertex shader");
-    else {
-      GST_ERROR_OBJECT (eglglessink, "Couldn't compile vertex shader");
-      glGetShaderiv (eglglessink->eglglesctx.vertshader[1], GL_INFO_LOG_LENGTH,
-          &test);
-      info_log = g_new0 (GLchar, test);
-      glGetShaderInfoLog (eglglessink->eglglesctx.vertshader[1], test, NULL,
-          info_log);
-      GST_INFO_OBJECT (eglglessink, "Compilation info log:\n%s", info_log);
-      g_free (info_log);
-      goto HANDLE_ERROR;
-    }
-
-    eglglessink->eglglesctx.fragshader[1] = glCreateShader (GL_FRAGMENT_SHADER);
-    glShaderSource (eglglessink->eglglesctx.fragshader[1], 1, &frag_BLACK_prog,
-        NULL);
-
-    if (got_gl_error ("glShaderSource fragment"))
-      goto HANDLE_ERROR;
-
-    glCompileShader (eglglessink->eglglesctx.fragshader[1]);
-    if (got_gl_error ("glCompileShader fragment"))
-      goto HANDLE_ERROR;
-
-    glGetShaderiv (eglglessink->eglglesctx.fragshader[1], GL_COMPILE_STATUS,
-        &test);
-    if (test != GL_FALSE)
-      GST_DEBUG_OBJECT (eglglessink, "Successfully compiled fragment shader");
-    else {
-      GST_ERROR_OBJECT (eglglessink, "Couldn't compile fragment shader");
-      glGetShaderiv (eglglessink->eglglesctx.fragshader[1], GL_INFO_LOG_LENGTH,
-          &test);
-      info_log = g_new0 (GLchar, test);
-      glGetShaderInfoLog (eglglessink->eglglesctx.fragshader[1], test, NULL,
-          info_log);
-      GST_INFO_OBJECT (eglglessink, "Compilation info log:\n%s", info_log);
-      g_free (info_log);
-      goto HANDLE_ERROR;
-    }
-
-    eglglessink->eglglesctx.glslprogram[1] = glCreateProgram ();
-    if (got_gl_error ("glCreateProgram"))
-      goto HANDLE_ERROR;
-    glAttachShader (eglglessink->eglglesctx.glslprogram[1],
-        eglglessink->eglglesctx.vertshader[1]);
-    if (got_gl_error ("glAttachShader vertices"))
-      goto HANDLE_ERROR;
-    glAttachShader (eglglessink->eglglesctx.glslprogram[1],
-        eglglessink->eglglesctx.fragshader[1]);
-    if (got_gl_error ("glAttachShader fragments"))
-      goto HANDLE_ERROR;
-    glLinkProgram (eglglessink->eglglesctx.glslprogram[1]);
-    glGetProgramiv (eglglessink->eglglesctx.glslprogram[1], GL_LINK_STATUS,
-        &test);
-    if (test != GL_FALSE)
-      GST_DEBUG_OBJECT (eglglessink, "GLES: Successfully linked program");
-    else {
-      GST_ERROR_OBJECT (eglglessink, "Couldn't link program");
-      goto HANDLE_ERROR;
-    }
-
     eglglessink->eglglesctx.position_loc[1] =
         glGetAttribLocation (eglglessink->eglglesctx.glslprogram[1],
         "position");
@@ -1538,12 +1481,8 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
       goto HANDLE_ERROR;
   }
 
-  glUseProgram (eglglessink->eglglesctx.glslprogram[0]);
+  /* Generate textures */
-
-  /* Generate and bind texture */
   if (!eglglessink->have_texture) {
-    gint i;
-
     GST_INFO_OBJECT (eglglessink, "Performing initial texture setup");
 
     for (i = 0; i < eglglessink->eglglesctx.n_textures; i++) {
@@ -1560,12 +1499,7 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
 
       glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[i]);
       if (got_gl_error ("glBindTexture"))
-        goto HANDLE_ERROR_LOCKED;
+        goto HANDLE_ERROR;
-
-      eglglessink->eglglesctx.tex_loc[i] =
-          glGetUniformLocation (eglglessink->eglglesctx.glslprogram[0],
-          texnames[i]);
-      glUniform1i (eglglessink->eglglesctx.tex_loc[i], i);
 
       /* Set 2D resizing params */
       glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
@@ -1582,9 +1516,8 @@ gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
 
     eglglessink->have_texture = TRUE;
   }
-  glUseProgram (0);
 
-  g_free (tmp_prog);
+  glUseProgram (0);
 
   return TRUE;
 
@@ -1594,7 +1527,6 @@ HANDLE_EGL_ERROR_LOCKED:
 HANDLE_ERROR_LOCKED:
 HANDLE_ERROR:
   GST_ERROR_OBJECT (eglglessink, "Couldn't setup EGL surface");
-  g_free (tmp_prog);
   return FALSE;
 }
 
@@ -1790,6 +1722,7 @@ gst_eglglessink_render_and_display (GstEglGlesSink * eglglessink,
   GstVideoFrame vframe;
   guint dar_n, dar_d;
   GstVideoCropMeta *crop = NULL;
+  gint i;
 
   memset (&vframe, 0, sizeof (vframe));
 
@@ -2390,19 +2323,32 @@ gst_eglglessink_render_and_display (GstEglGlesSink * eglglessink,
   GST_DEBUG_OBJECT (eglglessink, "Drawing video frame");
   glUseProgram (eglglessink->eglglesctx.glslprogram[0]);
 
-  glUniform2f (eglglessink->eglglesctx.tex_scale_loc[0], eglglessink->stride[0],
+  glUniform2f (eglglessink->eglglesctx.tex_scale_loc[0][0],
-      1);
+      eglglessink->stride[0], 1);
-  glUniform2f (eglglessink->eglglesctx.tex_scale_loc[1], eglglessink->stride[1],
+  glUniform2f (eglglessink->eglglesctx.tex_scale_loc[0][1],
-      1);
+      eglglessink->stride[1], 1);
-  glUniform2f (eglglessink->eglglesctx.tex_scale_loc[2], eglglessink->stride[2],
+  glUniform2f (eglglessink->eglglesctx.tex_scale_loc[0][2],
-      1);
+      eglglessink->stride[2], 1);
+
+  for (i = 0; i < eglglessink->eglglesctx.n_textures; i++) {
+    if (i == 0)
+      glActiveTexture (GL_TEXTURE0);
+    else if (i == 1)
+      glActiveTexture (GL_TEXTURE1);
+    else if (i == 2)
+      glActiveTexture (GL_TEXTURE2);
+
+    glUniform1i (eglglessink->eglglesctx.tex_loc[0][i], i);
+    if (got_gl_error ("glUniform1i"))
+      goto HANDLE_ERROR;
+  }
 
   glVertexAttribPointer (eglglessink->eglglesctx.position_loc[0], 3,
       GL_FLOAT, GL_FALSE, sizeof (coord5), (gpointer) (0 * sizeof (coord5)));
   if (got_gl_error ("glVertexAttribPointer"))
     goto HANDLE_ERROR;
 
-  glVertexAttribPointer (eglglessink->eglglesctx.texpos_loc, 2, GL_FLOAT,
+  glVertexAttribPointer (eglglessink->eglglesctx.texpos_loc[0], 2, GL_FLOAT,
       GL_FALSE, sizeof (coord5), (gpointer) (3 * sizeof (gfloat)));
   if (got_gl_error ("glVertexAttribPointer"))
     goto HANDLE_ERROR;

ext/eglgles/gsteglglessink.h

@@ -124,9 +124,9 @@ struct _GstEglGlesRenderContext
   EGLNativeWindowType window, used_window;
   EGLSurface surface;
   gboolean buffer_preserved;
-  GLuint fragshader[2]; /* frame, border */
+  GLuint fragshader[3]; /* frame, border, frame-platform */
-  GLuint vertshader[2]; /* frame, border */
+  GLuint vertshader[3]; /* frame, border, frame-platform */
-  GLuint glslprogram[2]; /* frame, border */
+  GLuint glslprogram[3]; /* frame, border, frame-platform */
   GLuint texture[3]; /* RGB/Y, U/UV, V */
   EGLint surface_width;
   EGLint surface_height;
@@ -135,10 +135,10 @@ struct _GstEglGlesRenderContext
   gint n_textures;
 
   /* shader vars */
-  GLuint position_loc[2]; /* frame, border */
+  GLuint position_loc[3]; /* frame, border, frame-platform */
-  GLuint texpos_loc; /* frame */
+  GLuint texpos_loc[2]; /* frame, frame-platform */
-  GLuint tex_scale_loc[3]; /* RGB/Y, U/UV, V */
+  GLuint tex_scale_loc[2][3]; /* [frame, frame-platform] RGB/Y, U/UV, V */
-  GLuint tex_loc[3]; /* RGB/Y, U/UV, V */
+  GLuint tex_loc[2][3]; /* [frame, frame-platform] RGB/Y, U/UV, V */
   coord5 position_array[12];    /* 4 x Frame, 4 x Border1, 4 x Border2 */
   unsigned short index_array[4];
   unsigned int position_buffer, index_buffer;