glshader: port to using GstGLSLStage objects for string management

A GstGLShader is now simply a collection of stages that are
compiled and linked together into a program.  The uniform/attribute
interface has remained the same.

ext/gl/effects/gstgleffectidentity.c

@@ -42,17 +42,18 @@ gst_gl_effects_identity_callback (gint width, gint height, guint texture,
 
   shader = g_hash_table_lookup (effects->shaderstable, "identity0");
   if (!shader) {
-    shader = gst_gl_shader_new (context);
-    g_hash_table_insert (effects->shaderstable, (gchar *) "identity0", shader);
+    GError *error = NULL;
 
-    if (!gst_gl_shader_compile_with_default_vf_and_check (shader,
-            &filter->draw_attr_position_loc, &filter->draw_attr_texture_loc)) {
-      /* gst gl context error is already set */
+    if (!(shader = gst_gl_shader_new_default (context, &error))) {
       GST_ELEMENT_ERROR (effects, RESOURCE, NOT_FOUND,
-          ("Failed to initialize identity shader, %s",
-              gst_gl_context_get_error ()), (NULL));
+          ("Failed to initialize identity shader: %s", error->message), (NULL));
       return;
     }
+
+    filter->draw_attr_position_loc =
+        gst_gl_shader_get_attribute_location (shader, "a_position");
+    filter->draw_attr_texture_loc =
+        gst_gl_shader_get_attribute_location (shader, "a_texcoord");
   }
   gst_gl_shader_use (shader);
 

ext/gl/gstglcolorscale.c

@@ -142,19 +142,20 @@ gst_gl_colorscale_gl_start (GstGLBaseFilter * base_filter)
   GstGLColorscale *colorscale = GST_GL_COLORSCALE (base_filter);
   GstGLFilter *filter = GST_GL_FILTER (base_filter);
   GstGLShader *shader;
+  GError *error = NULL;
 
-  shader = gst_gl_shader_new (base_filter->context);
-
-  if (!gst_gl_shader_compile_with_default_vf_and_check (shader,
-          &filter->draw_attr_position_loc, &filter->draw_attr_texture_loc)) {
-    gst_gl_context_clear_shader (base_filter->context);
+  if (!(shader = gst_gl_shader_new_default (base_filter->context, &error))) {
+    GST_ERROR_OBJECT (colorscale, "Failed to initialize shader: %s",
+        error->message);
     gst_object_unref (shader);
-    GST_ERROR_OBJECT (colorscale, "Failed to initialize identity shader");
-    GST_ELEMENT_ERROR (colorscale, RESOURCE, NOT_FOUND, ("%s",
-            "Failed to initialize identity shader"), (NULL));
     return FALSE;
   }
 
+  filter->draw_attr_position_loc =
+      gst_gl_shader_get_attribute_location (shader, "a_position");
+  filter->draw_attr_texture_loc =
+      gst_gl_shader_get_attribute_location (shader, "a_texcoord");
+
   colorscale->shader = shader;
 
   return GST_GL_BASE_FILTER_CLASS (parent_class)->gl_start (base_filter);

ext/gl/gstgldifferencematte.c

@@ -78,7 +78,9 @@ static void
 gst_gl_differencematte_init_gl_resources (GstGLFilter * filter)
 {
   GstGLDifferenceMatte *differencematte = GST_GL_DIFFERENCEMATTE (filter);
-  GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
+  GstGLContext *context = GST_GL_BASE_FILTER (filter)->context;
+  const GstGLFuncs *gl = context->gl_vtable;
+  GError *error = NULL;
   gint i;
 
   for (i = 0; i < 4; i++) {
@@ -96,45 +98,57 @@ gst_gl_differencematte_init_gl_resources (GstGLFilter * filter)
         gst_gl_shader_new (GST_GL_BASE_FILTER (filter)->context);
   }
 
-  if (!gst_gl_shader_compile_with_default_v_and_check (differencematte->shader
-          [0], difference_fragment_source, &filter->draw_attr_position_loc,
-          &filter->draw_attr_texture_loc)) {
-    gst_gl_context_set_error (GST_GL_BASE_FILTER (differencematte)->context,
-        "Failed to initialize difference shader");
+  if (!(differencematte->shader[0] =
+          gst_gl_shader_new_link_with_stages (context, &error,
+              gst_glsl_stage_new_default_vertex (context),
+              gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
+                  GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_ES,
+                  difference_fragment_source), NULL))) {
     GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
             gst_gl_context_get_error ()), (NULL));
     return;
   }
 
-  if (!gst_gl_shader_compile_with_default_v_and_check (differencematte->shader
-          [1], hconv7_fragment_source_gles2, &filter->draw_attr_position_loc,
-          &filter->draw_attr_texture_loc)) {
-    gst_gl_context_set_error (GST_GL_BASE_FILTER (differencematte)->context,
-        "Failed to initialize hconv7 shader");
+  if (!(differencematte->shader[1] =
+          gst_gl_shader_new_link_with_stages (context, &error,
+              gst_glsl_stage_new_default_vertex (context),
+              gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
+                  GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_ES,
+                  hconv7_fragment_source_gles2), NULL))) {
     GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
             gst_gl_context_get_error ()), (NULL));
     return;
   }
 
-  if (!gst_gl_shader_compile_with_default_v_and_check (differencematte->shader
-          [2], vconv7_fragment_source_gles2, &filter->draw_attr_position_loc,
-          &filter->draw_attr_texture_loc)) {
-    gst_gl_context_set_error (GST_GL_BASE_FILTER (differencematte)->context,
-        "Failed to initialize vconv7 shader");
+  if (!(differencematte->shader[2] =
+          gst_gl_shader_new_link_with_stages (context, &error,
+              gst_glsl_stage_new_default_vertex (context),
+              gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
+                  GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_ES,
+                  vconv7_fragment_source_gles2), NULL))) {
     GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
             gst_gl_context_get_error ()), (NULL));
     return;
   }
 
-  if (!gst_gl_shader_compile_with_default_v_and_check (differencematte->shader
-          [3], texture_interp_fragment_source, &filter->draw_attr_position_loc,
-          &filter->draw_attr_texture_loc)) {
-    gst_gl_context_set_error (GST_GL_BASE_FILTER (differencematte)->context,
-        "Failed to initialize interp shader");
+  if (!(differencematte->shader[3] =
+          gst_gl_shader_new_link_with_stages (context, &error,
+              gst_glsl_stage_new_default_vertex (context),
+              gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
+                  GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_ES,
+                  texture_interp_fragment_source), NULL))) {
     GST_ELEMENT_ERROR (differencematte, RESOURCE, NOT_FOUND, ("%s",
             gst_gl_context_get_error ()), (NULL));
     return;
   }
+
+  /* FIXME: this should really be per shader */
+  filter->draw_attr_position_loc =
+      gst_gl_shader_get_attribute_location (differencematte->shader[3],
+      "a_position");
+  filter->draw_attr_texture_loc =
+      gst_gl_shader_get_attribute_location (differencematte->shader[3],
+      "a_texcoord");
 }
 
 /* free resources that need a gl context */

ext/gl/gstgleffects.c

@@ -545,21 +545,22 @@ gst_gl_effects_get_fragment_shader (GstGLEffects * effects,
   shader = g_hash_table_lookup (effects->shaderstable, shader_name);
 
   if (!shader) {
-    shader = gst_gl_shader_new (context);
-    if (!gst_gl_shader_compile_with_default_v_and_check (shader,
-            shader_source_gles2, &filter->draw_attr_position_loc,
-            &filter->draw_attr_texture_loc)) {
-      /* gst gl context error is already set */
-      GST_ELEMENT_ERROR (effects, RESOURCE, NOT_FOUND,
-          ("Failed to initialize %s shader, %s",
-              shader_name, gst_gl_context_get_error ()), (NULL));
-      gst_object_unref (shader);
-      shader = NULL;
-    }
-  }
+    GError *error = NULL;
 
-  if (!shader)
-    return NULL;
+    if (!(shader = gst_gl_shader_new_link_with_stages (context, &error,
+                gst_glsl_stage_new_default_vertex (context),
+                gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
+                    GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_ES,
+                    shader_source_gles2), NULL))) {
+      GST_ELEMENT_ERROR (effects, RESOURCE, NOT_FOUND,
+          ("Failed to initialize %s shader", shader_name), (NULL));
+    }
+
+    filter->draw_attr_position_loc =
+        gst_gl_shader_get_attribute_location (shader, "a_position");
+    filter->draw_attr_texture_loc =
+        gst_gl_shader_get_attribute_location (shader, "a_texcoord");
+  }
 
   g_hash_table_insert (effects->shaderstable, (gchar *) shader_name, shader);
 

ext/gl/gstglimagesink.c

@@ -1682,13 +1682,23 @@ static void
 gst_glimage_sink_thread_init_redisplay (GstGLImageSink * gl_sink)
 {
   const GstGLFuncs *gl = gl_sink->context->gl_vtable;
+  GError *error = NULL;
 
-  gl_sink->redisplay_shader = gst_gl_shader_new (gl_sink->context);
-
-  if (!gst_gl_shader_compile_with_default_vf_and_check
-      (gl_sink->redisplay_shader, &gl_sink->attr_position,
-          &gl_sink->attr_texture))
+  if (!(gl_sink->redisplay_shader =
+          gst_gl_shader_new_link_with_stages (gl_sink->context, &error,
+              gst_glsl_stage_new_default_vertex (gl_sink->context),
+              gst_glsl_stage_new_default_fragment (gl_sink->context), NULL))) {
+    GST_ERROR_OBJECT (gl_sink, "Failed to link shader: %s", error->message);
     gst_glimage_sink_cleanup_glthread (gl_sink);
+    return;
+  }
+
+  gl_sink->attr_position =
+      gst_gl_shader_get_attribute_location (gl_sink->redisplay_shader,
+      "a_position");
+  gl_sink->attr_texture =
+      gst_gl_shader_get_attribute_location (gl_sink->redisplay_shader,
+      "a_texcoord");
 
   if (gl->GenVertexArrays) {
     gl->GenVertexArrays (1, &gl_sink->vao);

gst-libs/gst/gl/gstgloverlaycompositor.c

@@ -425,12 +425,24 @@ gst_gl_overlay_compositor_init_gl (GstGLContext * context,
 {
   GstGLOverlayCompositor *compositor =
       (GstGLOverlayCompositor *) compositor_pointer;
+  GError *error = NULL;
 
-  if (!gst_gl_shader_compile_with_default_v_and_check (compositor->shader,
-          fragment_shader, &compositor->position_attrib,
-          &compositor->texcoord_attrib)) {
-    GST_ERROR ("could not initialize shader.");
+  if (!(compositor->shader =
+          gst_gl_shader_new_link_with_stages (context, &error,
+              gst_glsl_stage_new_default_vertex (context),
+              gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
+                  GST_GLSL_VERSION_NONE,
+                  GST_GLSL_PROFILE_ES | GST_GLSL_PROFILE_COMPATIBILITY,
+                  fragment_shader), NULL))) {
+    GST_ERROR_OBJECT (compositor, "could not initialize shader: %s",
+        error->message);
+    return;
   }
+
+  compositor->position_attrib =
+      gst_gl_shader_get_attribute_location (compositor->shader, "a_position");
+  compositor->texcoord_attrib =
+      gst_gl_shader_get_attribute_location (compositor->shader, "a_texcoord");
 }
 
 GstGLOverlayCompositor *
@@ -441,8 +453,6 @@ gst_gl_overlay_compositor_new (GstGLContext * context)
 
   compositor->context = gst_object_ref (context);
 
-  compositor->shader = gst_gl_shader_new (compositor->context);
-
   gst_gl_context_thread_add (compositor->context,
       gst_gl_overlay_compositor_init_gl, compositor);
 

gst-libs/gst/gl/gstglshader.h

@@ -26,6 +26,7 @@
 
 G_BEGIN_DECLS
 
+GType gst_gl_shader_get_type (void);
 #define GST_GL_TYPE_SHADER         (gst_gl_shader_get_type())
 #define GST_GL_SHADER(o)           (G_TYPE_CHECK_INSTANCE_CAST((o), GST_GL_TYPE_SHADER, GstGLShader))
 #define GST_GL_SHADER_CLASS(k)     (G_TYPE_CHECK_CLASS((k), GST_GL_TYPE_SHADER, GstGLShaderClass))
@@ -33,19 +34,6 @@ G_BEGIN_DECLS
 #define GST_GL_IS_SHADER_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE((k), GST_GL_TYPE_SHADER))
 #define GST_GL_SHADER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_GL_TYPE_SHADER, GstGLShaderClass))
 
-#define GST_GL_SHADER_ERROR (gst_gl_shader_error_quark ())
-
-typedef enum {
-  GST_GL_SHADER_ERROR_COMPILE,
-  GST_GL_SHADER_ERROR_LINK,
-  GST_GL_SHADER_ERROR_PROGRAM
-} GstGLShaderError;
-
-typedef enum {
-  GST_GL_SHADER_FRAGMENT_SOURCE,
-  GST_GL_SHADER_VERTEX_SOURCE
-} GstGLShaderSourceType;
-
 struct _GstGLShader {
   /*< private >*/
   GstObject parent;
@@ -53,6 +41,8 @@ struct _GstGLShader {
   GstGLContext *context;
 
   GstGLShaderPrivate *priv;
+
+  gpointer _padding[GST_PADDING];
 };
 
 struct _GstGLShaderClass {
@@ -60,33 +50,29 @@ struct _GstGLShaderClass {
   GstObjectClass parent_class;
 };
 
-/* methods */
+GstGLShader * gst_gl_shader_new                     (GstGLContext *context);
+GstGLShader * gst_gl_shader_new_with_stages         (GstGLContext * context, GError ** error, ...);
+GstGLShader * gst_gl_shader_new_link_with_stages    (GstGLContext * context, GError ** error, ...);
+GstGLShader * gst_gl_shader_new_default             (GstGLContext * context, GError ** error);
 
-GQuark gst_gl_shader_error_quark (void);
-GType gst_gl_shader_get_type (void);
+gboolean gst_gl_shader_attach                       (GstGLShader * shader, GstGLSLStage * stage);
+gboolean gst_gl_shader_attach_unlocked              (GstGLShader * shader, GstGLSLStage * stage);
 
-GstGLShader * gst_gl_shader_new (GstGLContext *context);
+void     gst_gl_shader_detach                       (GstGLShader * shader, GstGLSLStage * stage);
+void     gst_gl_shader_detach_unlocked              (GstGLShader * shader, GstGLSLStage * stage);
 
-int gst_gl_shader_get_program_handle(GstGLShader * shader);
+gboolean gst_gl_shader_compile_attach_stage         (GstGLShader * shader,
+                                                     GstGLSLStage *stage,
+                                                     GError ** error);
+gboolean gst_gl_shader_link                         (GstGLShader * shader, GError ** error);
+gboolean gst_gl_shader_is_linked                    (GstGLShader *shader);
 
-void          gst_gl_shader_set_vertex_source   (GstGLShader *shader, const gchar *src);
-void          gst_gl_shader_set_fragment_source (GstGLShader *shader, const gchar *src);
-const gchar * gst_gl_shader_get_vertex_source   (GstGLShader *shader);
-const gchar * gst_gl_shader_get_fragment_source (GstGLShader *shader);
+int gst_gl_shader_get_program_handle                (GstGLShader * shader);
 
-void     gst_gl_shader_set_active        (GstGLShader *shader, gboolean active);
-gboolean gst_gl_shader_is_compiled       (GstGLShader *shader);
-gboolean gst_gl_shader_compile           (GstGLShader *shader, GError **error);
-gboolean gst_gl_shader_compile_and_check (GstGLShader *shader, const gchar *source, GstGLShaderSourceType type);
-gboolean gst_gl_shader_compile_all_with_attribs_and_check (GstGLShader *shader, const gchar *v_src, const gchar *f_src, const gint n_attribs, const gchar *attrib_names[], GLint attrib_locs[]);
-
-gboolean gst_gl_shader_compile_with_default_f_and_check   (GstGLShader *shader, const gchar *v_src, const gint n_attribs, const gchar *attrib_names[], GLint attrib_locs[]);
-gboolean gst_gl_shader_compile_with_default_v_and_check   (GstGLShader *shader, const gchar *f_src, GLint *pos_loc, GLint *tex_loc);
-gboolean gst_gl_shader_compile_with_default_vf_and_check  (GstGLShader *shader, GLint *pos_loc, GLint *tex_loc);
-
-void gst_gl_shader_release       (GstGLShader *shader);
-void gst_gl_shader_use           (GstGLShader *shader);
-void gst_gl_context_clear_shader (GstGLContext *context);
+void gst_gl_shader_release                          (GstGLShader *shader);
+void gst_gl_shader_release_unlocked                 (GstGLShader * shader);
+void gst_gl_shader_use                              (GstGLShader *shader);
+void gst_gl_context_clear_shader                    (GstGLContext *context);
 
 void gst_gl_shader_set_uniform_1i           (GstGLShader *shader, const gchar *name, gint value);
 void gst_gl_shader_set_uniform_1iv          (GstGLShader *shader, const gchar *name, guint count, gint *value);

gst-libs/gst/gl/gstglutils.c

@@ -375,20 +375,60 @@ gst_gl_context_del_fbo (GstGLContext * context, GLuint fbo, GLuint depth_buffer)
   gst_object_unref (frame);
 }
 
-static void
-_compile_shader (GstGLContext * context, GstGLShader ** shader)
+struct _compile_shader
 {
+  GstGLShader **shader;
+  const gchar *vertex_src;
+  const gchar *fragment_src;
+};
+
+static void
+_compile_shader (GstGLContext * context, struct _compile_shader *data)
+{
+  GstGLShader *shader;
+  GstGLSLStage *vert, *frag;
   GError *error = NULL;
 
-  gst_gl_shader_compile (*shader, &error);
-  if (error) {
-    gst_gl_context_set_error (context, "%s", error->message);
+  shader = gst_gl_shader_new (context);
+
+  if (data->vertex_src) {
+    vert = gst_glsl_stage_new_with_string (context, GL_VERTEX_SHADER,
+        GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_NONE, data->vertex_src);
+    if (!gst_glsl_stage_compile (vert, &error)) {
+      GST_ERROR_OBJECT (vert, "%s", error->message);
+      gst_object_unref (shader);
+      return;
+    }
+    if (!gst_gl_shader_attach (shader, vert)) {
+      gst_object_unref (shader);
+      return;
+    }
+  }
+
+  if (data->fragment_src) {
+    frag = gst_glsl_stage_new_with_string (context, GL_FRAGMENT_SHADER,
+        GST_GLSL_VERSION_NONE, GST_GLSL_PROFILE_NONE, data->fragment_src);
+    if (!gst_glsl_stage_compile (frag, &error)) {
+      GST_ERROR_OBJECT (frag, "%s", error->message);
+      gst_object_unref (shader);
+      return;
+    }
+    if (!gst_gl_shader_attach (shader, frag)) {
+      gst_object_unref (shader);
+      return;
+    }
+  }
+
+  if (!gst_gl_shader_link (shader, &error)) {
+    GST_ERROR_OBJECT (shader, "%s", error->message);
     g_error_free (error);
     error = NULL;
     gst_gl_context_clear_shader (context);
-    gst_object_unref (*shader);
-    *shader = NULL;
+    gst_object_unref (shader);
+    return;
   }
+
+  *data->shader = shader;
 }
 
 /* Called by glfilter */
@@ -396,18 +436,17 @@ gboolean
 gst_gl_context_gen_shader (GstGLContext * context, const gchar * vert_src,
     const gchar * frag_src, GstGLShader ** shader)
 {
+  struct _compile_shader data;
+
   g_return_val_if_fail (frag_src != NULL || vert_src != NULL, FALSE);
   g_return_val_if_fail (shader != NULL, FALSE);
 
-  *shader = gst_gl_shader_new (context);
-
-  if (frag_src)
-    gst_gl_shader_set_fragment_source (*shader, frag_src);
-  if (vert_src)
-    gst_gl_shader_set_vertex_source (*shader, vert_src);
+  data.shader = shader;
+  data.vertex_src = vert_src;
+  data.fragment_src = frag_src;
 
   gst_gl_context_thread_add (context, (GstGLContextThreadFunc) _compile_shader,
-      shader);
+      &data);
 
   return *shader != NULL;
 }

tests/check/libs/gstglcontext.c

@@ -28,29 +28,6 @@
 
 #include <stdio.h>
 
-#if GST_GL_HAVE_GLES2
-/* *INDENT-OFF* */
-static const gchar *vertex_shader_str_gles2 =
-      "attribute vec4 a_position;   \n"
-      "attribute vec2 a_texCoord;   \n"
-      "varying vec2 v_texCoord;     \n"
-      "void main()                  \n"
-      "{                            \n"
-      "   gl_Position = a_position; \n"
-      "   v_texCoord = a_texCoord;  \n"
-      "}                            \n";
-
-static const gchar *fragment_shader_str_gles2 =
-      "precision mediump float;                            \n"
-      "varying vec2 v_texCoord;                            \n"
-      "uniform sampler2D s_texture;                        \n"
-      "void main()                                         \n"
-      "{                                                   \n"
-      "  gl_FragColor = texture2D( s_texture, v_texCoord );\n"
-      "}                                                   \n";
-/* *INDENT-ON* */
-#endif
-
 static GstGLDisplay *display;
 
 static void
@@ -67,17 +44,15 @@ teardown (void)
 
 static GLuint fbo_id, rbo, tex;
 static GstGLFramebuffer *fbo;
-#if GST_GL_HAVE_GLES2
-static GError *error;
 static GstGLShader *shader;
 static GLint shader_attr_position_loc;
 static GLint shader_attr_texture_loc;
-#endif
 
 static void
 init (gpointer data)
 {
   GstGLContext *context = data;
+  GError *error = NULL;
 
   /* has to be called in the thread that is going to use the framebuffer */
   fbo = gst_gl_framebuffer_new (context);
@@ -88,25 +63,14 @@ init (gpointer data)
   gst_gl_context_gen_texture (context, &tex, GST_VIDEO_FORMAT_RGBA, 320, 240);
   fail_if (tex == 0, "failed to create texture");
 
-#if GST_GL_HAVE_GLES2
-  if (gst_gl_context_get_gl_api (context) & GST_GL_API_GLES2) {
-    shader = gst_gl_shader_new (context);
-    fail_if (shader == NULL, "failed to create shader object");
+  shader = gst_gl_shader_new_default (context, &error);
+  fail_if (shader == NULL, "failed to create shader object: %s",
+      error->message);
 
-    gst_gl_shader_set_vertex_source (shader, vertex_shader_str_gles2);
-    gst_gl_shader_set_fragment_source (shader, fragment_shader_str_gles2);
-
-    error = NULL;
-    gst_gl_shader_compile (shader, &error);
-    fail_if (error != NULL, "Error compiling shader %s\n",
-        error ? error->message : "Unknown Error");
-
-    shader_attr_position_loc =
-        gst_gl_shader_get_attribute_location (shader, "a_position");
-    shader_attr_texture_loc =
-        gst_gl_shader_get_attribute_location (shader, "a_texCoord");
-  }
-#endif
+  shader_attr_position_loc =
+      gst_gl_shader_get_attribute_location (shader, "a_position");
+  shader_attr_texture_loc =
+      gst_gl_shader_get_attribute_location (shader, "a_texcoord");
 }
 
 static void
@@ -116,10 +80,7 @@ deinit (gpointer data)
   GstGLFuncs *gl = context->gl_vtable;
   gl->DeleteTextures (1, &tex);
   gst_object_unref (fbo);
-#if GST_GL_HAVE_GLES2
-  if (gst_gl_context_get_gl_api (context) & GST_GL_API_GLES2)
-    gst_object_unref (shader);
-#endif
+  gst_object_unref (shader);
 }
 
 static void
@@ -150,81 +111,38 @@ draw_render (gpointer data)
   GstGLContext *context = data;
   GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
   const GstGLFuncs *gl = context->gl_vtable;
+  const GLfloat vVertices[] = { 1.0f, 1.0f, 0.0f,
+    1.0f, 0.0f,
+    -1.0f, 1.0f, 0.0f,
+    0.0f, 0.0f,
+    -1.0f, -1.0f, 0.0f,
+    0.0f, 1.0f,
+    1.0f, -1.0f, 0.0f,
+    1.0f, 1.0f
+  };
 
-  /* redraw the texture into the system provided framebuffer */
+  GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
 
-#if GST_GL_HAVE_OPENGL
-  if (gst_gl_context_get_gl_api (context) & GST_GL_API_OPENGL) {
-    GLfloat verts[8] = { 1.0f, 1.0f,
-      -1.0f, 1.0f,
-      -1.0f, -1.0f,
-      1.0f, -1.0f
-    };
-    GLfloat texcoords[8] = { 1.0f, 0.0f,
-      0.0f, 0.0f,
-      0.0f, 1.0f,
-      1.0f, 1.0f
-    };
+  gl->Clear (GL_COLOR_BUFFER_BIT);
 
-    gl->Viewport (0, 0, 320, 240);
+  gst_gl_shader_use (shader);
 
-    gl->Clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+  /* Load the vertex position */
+  gl->VertexAttribPointer (shader_attr_position_loc, 3,
+      GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices);
 
-    gl->MatrixMode (GL_PROJECTION);
-    gl->LoadIdentity ();
+  /* Load the texture coordinate */
+  gl->VertexAttribPointer (shader_attr_texture_loc, 2,
+      GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]);
 
-    gl->ActiveTexture (GL_TEXTURE0);
-    gl->BindTexture (GL_TEXTURE_2D, tex);
+  gl->EnableVertexAttribArray (shader_attr_position_loc);
+  gl->EnableVertexAttribArray (shader_attr_texture_loc);
 
-    gl->EnableClientState (GL_VERTEX_ARRAY);
-    gl->VertexPointer (2, GL_FLOAT, 0, &verts);
+  gl->ActiveTexture (GL_TEXTURE0);
+  gl->BindTexture (GL_TEXTURE_2D, tex);
+  gst_gl_shader_set_uniform_1i (shader, "s_texture", 0);
 
-    gl->ClientActiveTexture (GL_TEXTURE0);
-    gl->EnableClientState (GL_TEXTURE_COORD_ARRAY);
-    gl->TexCoordPointer (2, GL_FLOAT, 0, &texcoords);
-
-    gl->DrawArrays (GL_TRIANGLE_FAN, 0, 4);
-
-    gl->DisableClientState (GL_VERTEX_ARRAY);
-    gl->DisableClientState (GL_TEXTURE_COORD_ARRAY);
-  }
-#endif
-#if GST_GL_HAVE_GLES2
-  if (gst_gl_context_get_gl_api (context) & GST_GL_API_GLES2) {
-    const GLfloat vVertices[] = { 1.0f, 1.0f, 0.0f,
-      1.0f, 0.0f,
-      -1.0f, 1.0f, 0.0f,
-      0.0f, 0.0f,
-      -1.0f, -1.0f, 0.0f,
-      0.0f, 1.0f,
-      1.0f, -1.0f, 0.0f,
-      1.0f, 1.0f
-    };
-
-    GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
-
-    gl->Clear (GL_COLOR_BUFFER_BIT);
-
-    gst_gl_shader_use (shader);
-
-    /* Load the vertex position */
-    gl->VertexAttribPointer (shader_attr_position_loc, 3,
-        GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices);
-
-    /* Load the texture coordinate */
-    gl->VertexAttribPointer (shader_attr_texture_loc, 2,
-        GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]);
-
-    gl->EnableVertexAttribArray (shader_attr_position_loc);
-    gl->EnableVertexAttribArray (shader_attr_texture_loc);
-
-    gl->ActiveTexture (GL_TEXTURE0);
-    gl->BindTexture (GL_TEXTURE_2D, tex);
-    gst_gl_shader_set_uniform_1i (shader, "s_texture", 0);
-
-    gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
-  }
-#endif
+  gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
 
   context_class->swap_buffers (context);
 }
@@ -314,6 +232,7 @@ check_wrapped (gpointer data)
   fail_if (!ret, "error received %s\n",
       error ? error->message : "Unknown error");
   fail_if (wrapped_context->gl_vtable->TexImage2D == NULL);
+  gst_gl_context_activate (wrapped_context, FALSE);
 }
 
 GST_START_TEST (test_wrapped_context)

tests/check/libs/gstglupload.c

@@ -29,41 +29,14 @@
 
 #include <stdio.h>
 
-#if GST_GL_HAVE_GLES2
-/* *INDENT-OFF* */
-static const gchar *vertex_shader_str_gles2 =
-      "attribute vec4 a_position;   \n"
-      "attribute vec2 a_texCoord;   \n"
-      "varying vec2 v_texCoord;     \n"
-      "void main()                  \n"
-      "{                            \n"
-      "   gl_Position = a_position; \n"
-      "   v_texCoord = a_texCoord;  \n"
-      "}                            \n";
-
-static const gchar *fragment_shader_str_gles2 =
-      "precision mediump float;                            \n"
-      "varying vec2 v_texCoord;                            \n"
-      "uniform sampler2D s_texture;                        \n"
-      "void main()                                         \n"
-      "{                                                   \n"
-      "  gl_FragColor = texture2D( s_texture, v_texCoord );\n"
-      "}                                                   \n";
-/* *INDENT-ON* */
-#endif
-
 static GstGLDisplay *display;
 static GstGLContext *context;
 static GstGLWindow *window;
 static GstGLUpload *upload;
 static guint tex_id;
-#if GST_GL_HAVE_GLES2
-static GError *error;
 static GstGLShader *shader;
 static GLint shader_attr_position_loc;
 static GLint shader_attr_texture_loc;
-#endif
-
 
 #define FORMAT GST_VIDEO_GL_TEXTURE_TYPE_RGBA
 #define WIDTH 10
@@ -118,25 +91,15 @@ teardown (void)
 static void
 init (gpointer data)
 {
-#if GST_GL_HAVE_GLES2
-  if (gst_gl_context_get_gl_api (context) & GST_GL_API_GLES2) {
-    shader = gst_gl_shader_new (context);
-    fail_if (shader == NULL, "failed to create shader object");
+  GError *error = NULL;
 
-    gst_gl_shader_set_vertex_source (shader, vertex_shader_str_gles2);
-    gst_gl_shader_set_fragment_source (shader, fragment_shader_str_gles2);
+  shader = gst_gl_shader_new_default (context, &error);
+  fail_if (shader == NULL, "failed to create shader object %s", error->message);
 
-    error = NULL;
-    gst_gl_shader_compile (shader, &error);
-    fail_if (error != NULL, "Error compiling shader %s\n",
-        error ? error->message : "Unknown Error");
-
-    shader_attr_position_loc =
-        gst_gl_shader_get_attribute_location (shader, "a_position");
-    shader_attr_texture_loc =
-        gst_gl_shader_get_attribute_location (shader, "a_texCoord");
-  }
-#endif
+  shader_attr_position_loc =
+      gst_gl_shader_get_attribute_location (shader, "a_position");
+  shader_attr_texture_loc =
+      gst_gl_shader_get_attribute_location (shader, "a_texCoord");
 }
 
 static void
@@ -145,81 +108,38 @@ draw_render (gpointer data)
   GstGLContext *context = data;
   GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
   const GstGLFuncs *gl = context->gl_vtable;
+  const GLfloat vVertices[] = { 1.0f, 1.0f, 0.0f,
+    1.0f, 0.0f,
+    -1.0f, 1.0f, 0.0f,
+    0.0f, 0.0f,
+    -1.0f, -1.0f, 0.0f,
+    0.0f, 1.0f,
+    1.0f, -1.0f, 0.0f,
+    1.0f, 1.0f
+  };
 
-  /* redraw the texture into the system provided framebuffer */
+  GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
 
-#if GST_GL_HAVE_OPENGL
-  if (gst_gl_context_get_gl_api (context) & GST_GL_API_OPENGL) {
-    GLfloat verts[8] = { 1.0f, 1.0f,
-      -1.0f, 1.0f,
-      -1.0f, -1.0f,
-      1.0f, -1.0f
-    };
-    GLfloat texcoords[8] = { 1.0f, 0.0f,
-      0.0f, 0.0f,
-      0.0f, 1.0f,
-      1.0f, 1.0f
-    };
+  gl->Clear (GL_COLOR_BUFFER_BIT);
 
-    gl->Viewport (0, 0, 10, 10);
+  gst_gl_shader_use (shader);
 
-    gl->Clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+  /* Load the vertex position */
+  gl->VertexAttribPointer (shader_attr_position_loc, 3,
+      GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices);
 
-    gl->MatrixMode (GL_PROJECTION);
-    gl->LoadIdentity ();
+  /* Load the texture coordinate */
+  gl->VertexAttribPointer (shader_attr_texture_loc, 2,
+      GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]);
 
-    gl->ActiveTexture (GL_TEXTURE_2D);
-    gl->BindTexture (GL_TEXTURE_2D, tex_id);
+  gl->EnableVertexAttribArray (shader_attr_position_loc);
+  gl->EnableVertexAttribArray (shader_attr_texture_loc);
 
-    gl->EnableClientState (GL_VERTEX_ARRAY);
-    gl->VertexPointer (2, GL_FLOAT, 0, &verts);
+  gl->ActiveTexture (GL_TEXTURE0);
+  gl->BindTexture (GL_TEXTURE_2D, tex_id);
+  gst_gl_shader_set_uniform_1i (shader, "s_texture", 0);
 
-    gl->ClientActiveTexture (GL_TEXTURE0);
-    gl->EnableClientState (GL_TEXTURE_COORD_ARRAY);
-    gl->TexCoordPointer (2, GL_FLOAT, 0, &texcoords);
-
-    gl->DrawArrays (GL_TRIANGLE_FAN, 0, 4);
-
-    gl->DisableClientState (GL_VERTEX_ARRAY);
-    gl->DisableClientState (GL_TEXTURE_COORD_ARRAY);
-  }
-#endif
-#if GST_GL_HAVE_GLES2
-  if (gst_gl_context_get_gl_api (context) & GST_GL_API_GLES2) {
-    const GLfloat vVertices[] = { 1.0f, 1.0f, 0.0f,
-      1.0f, 0.0f,
-      -1.0f, 1.0f, 0.0f,
-      0.0f, 0.0f,
-      -1.0f, -1.0f, 0.0f,
-      0.0f, 1.0f,
-      1.0f, -1.0f, 0.0f,
-      1.0f, 1.0f
-    };
-
-    GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
-
-    gl->Clear (GL_COLOR_BUFFER_BIT);
-
-    gst_gl_shader_use (shader);
-
-    /* Load the vertex position */
-    gl->VertexAttribPointer (shader_attr_position_loc, 3,
-        GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices);
-
-    /* Load the texture coordinate */
-    gl->VertexAttribPointer (shader_attr_texture_loc, 2,
-        GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]);
-
-    gl->EnableVertexAttribArray (shader_attr_position_loc);
-    gl->EnableVertexAttribArray (shader_attr_texture_loc);
-
-    gl->ActiveTexture (GL_TEXTURE0);
-    gl->BindTexture (GL_TEXTURE_2D, tex_id);
-    gst_gl_shader_set_uniform_1i (shader, "s_texture", 0);
-
-    gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
-  }
-#endif
+  gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
 
   context_class->swap_buffers (context);
 }