1 files changed, 286 insertions, 0 deletions

diff --git a/libraries/elementary/src/bin/test_glview_simple.c b/libraries/elementary/src/bin/test_glview_simple.c
new file mode 100644
index 0000000..fc21ef4
--- /dev/null
+++ b/libraries/elementary/src/bin/test_glview_simple.c
@@ -0,0 +1,286 @@
+#ifdef HAVE_CONFIG_H
+# include "elementary_config.h"
+#endif
+#include <Elementary.h>
+#ifndef ELM_LIB_QUICKLAUNCH
+
+typedef struct _GLData GLData;
+
+// GL related data here..
+struct _GLData
+{
+   Evas_GL_API *glapi;
+   GLuint       program;
+   GLuint       vtx_shader;
+   GLuint       fgmt_shader;
+   GLuint       vbo;
+   int          initialized : 1;
+};
+
+
+static float red = 1.0;
+
+//--------------------------------//
+static GLuint
+load_shader( GLData *gld, GLenum type, const char *shader_src )
+{
+   Evas_GL_API *gl = gld->glapi;
+   GLuint shader;
+   GLint compiled;
+
+   // Create the shader object
+   shader = gl->glCreateShader(type);
+   if (shader==0)
+      return 0;
+
+   // Load/Compile shader source
+   gl->glShaderSource(shader, 1, &shader_src, NULL);
+   gl->glCompileShader(shader);
+   gl->glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
+
+   if (!compiled)
+     {
+        GLint info_len = 0;
+        gl->glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &info_len);
+        if (info_len > 1)
+          {
+             char* info_log = malloc(sizeof(char) * info_len);
+
+             gl->glGetShaderInfoLog(shader, info_len, NULL, info_log);
+             printf("Error compiling shader:\n%s\n======\n%s\n======\n", info_log, shader_src );
+             free(info_log);
+          }
+        gl->glDeleteShader(shader);
+        return 0;
+     }
+
+   return shader;
+}
+
+// Initialize the shader and program object
+static int
+init_shaders(GLData *gld)
+{
+   Evas_GL_API *gl = gld->glapi;
+   GLbyte vShaderStr[] =
+      "attribute vec4 vPosition;    \n"
+      "void main()                  \n"
+      "{                            \n"
+      "   gl_Position = vPosition;  \n"
+      "}                            \n";
+
+   GLbyte fShaderStr[] =
+      "#ifdef GL_ES                                 \n"
+      "precision mediump float;                     \n"
+      "#endif                                       \n"
+      "void main()                                  \n"
+      "{                                            \n"
+      "  gl_FragColor = vec4 ( 1.0, 0.0, 0.0, 1.0 );\n"
+      "}                                            \n";
+
+   GLint linked;
+
+   // Load the vertex/fragment shaders
+   gld->vtx_shader  = load_shader(gld, GL_VERTEX_SHADER, (const char*)vShaderStr);
+   gld->fgmt_shader = load_shader(gld, GL_FRAGMENT_SHADER, (const char*)fShaderStr);
+
+   // Create the program object
+   gld->program = gl->glCreateProgram( );
+   if (gld->program==0)
+      return 0;
+
+   gl->glAttachShader(gld->program, gld->vtx_shader);
+   gl->glAttachShader(gld->program, gld->fgmt_shader);
+
+   gl->glBindAttribLocation(gld->program, 0, "vPosition");
+   gl->glLinkProgram(gld->program);
+   gl->glGetProgramiv(gld->program, GL_LINK_STATUS, &linked);
+
+   if (!linked)
+     {
+        GLint info_len = 0;
+        gl->glGetProgramiv(gld->program, GL_INFO_LOG_LENGTH, &info_len);
+        if (info_len > 1)
+          {
+             char* info_log = malloc(sizeof(char) * info_len);
+
+             gl->glGetProgramInfoLog(gld->program, info_len, NULL, info_log);
+             printf("Error linking program:\n%s\n", info_log);
+             free(info_log);
+          }
+        gl->glDeleteProgram(gld->program);
+        return 0;
+     }
+   return 1;
+}
+
+
+
+// Callbacks
+static void
+_init_gl(Evas_Object *obj)
+{
+   GLData *gld = evas_object_data_get(obj, "gld");
+   Evas_GL_API *gl = gld->glapi;
+   GLfloat vVertices[] = {  0.0f,  0.5f, 0.0f,
+                           -0.5f, -0.5f, 0.0f,
+                            0.5f, -0.5f, 0.0f };
+
+   if (!init_shaders(gld))
+     {
+        printf("Error Initializing Shaders\n");
+        return;
+     }
+
+   gl->glGenBuffers(1, &gld->vbo);
+   gl->glBindBuffer(GL_ARRAY_BUFFER, gld->vbo);
+   gl->glBufferData(GL_ARRAY_BUFFER, 3 * 3 * 4, vVertices, GL_STATIC_DRAW);
+}
+
+static void
+_del_gl(Evas_Object *obj)
+{
+   GLData *gld = evas_object_data_get(obj, "gld");
+   if (!gld)
+     {
+        printf("Unable to get GLData. \n");
+        return;
+     }
+   Evas_GL_API *gl = gld->glapi;
+
+   gl->glDeleteShader(gld->vtx_shader);
+   gl->glDeleteShader(gld->fgmt_shader);
+   gl->glDeleteProgram(gld->program);
+   gl->glDeleteBuffers(1, &gld->vbo);
+
+   evas_object_data_del((Evas_Object*)obj, "..gld");
+   free(gld);
+}
+
+
+static void
+_resize_gl(Evas_Object *obj)
+{
+   int w, h;
+   GLData *gld = evas_object_data_get(obj, "gld");
+   Evas_GL_API *gl = gld->glapi;
+
+   elm_glview_size_get(obj, &w, &h);
+
+   // GL Viewport stuff. you can avoid doing this if viewport is all the
+   // same as last frame if you want
+   gl->glViewport(0, 0, w, h);
+}
+
+
+
+static void
+_draw_gl(Evas_Object *obj)
+{
+   Evas_GL_API *gl = elm_glview_gl_api_get(obj);
+   GLData *gld = evas_object_data_get(obj, "gld");
+   if (!gld) return;
+   int w, h;
+
+   elm_glview_size_get(obj, &w, &h);
+
+   gl->glViewport(0, 0, w, h);
+   gl->glClearColor(red,0.8,0.3,1);
+   gl->glClear(GL_COLOR_BUFFER_BIT);
+
+   // Draw a Triangle
+   gl->glEnable(GL_BLEND);
+
+   gl->glUseProgram(gld->program);
+
+   gl->glBindBuffer(GL_ARRAY_BUFFER, gld->vbo);
+   gl->glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE,
+                             0, 0);
+   gl->glEnableVertexAttribArray(0);
+
+   gl->glDrawArrays(GL_TRIANGLES, 0, 3);
+
+   // Optional - Flush the GL pipeline
+   gl->glFinish();
+
+   red -= 0.1;
+   if (red < 0.0) red = 1.0;
+}
+
+static Eina_Bool
+_anim(void *data)
+{
+   elm_glview_changed_set(data);
+   return EINA_TRUE;
+}
+
+static void
+_on_done(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
+{
+   evas_object_del((Evas_Object*)data);
+}
+
+
+static void
+_del(void *data __UNUSED__, Evas *evas __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
+{
+   Ecore_Animator *ani = evas_object_data_get(obj, "ani");
+   ecore_animator_del(ani);
+}
+
+
+void
+test_glview_simple(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
+{
+   Evas_Object *win, *bx, *bt, *gl;
+   Ecore_Animator *ani;
+   GLData *gld = NULL;
+
+   if (!(gld = calloc(1, sizeof(GLData)))) return;
+
+   // Set the engine to opengl_x11
+   elm_config_preferred_engine_set("opengl_x11");
+   win = elm_win_util_standard_add("glview simple", "GLView Simple");
+   // Set preferred engine back to default from config
+   elm_config_preferred_engine_set(NULL);
+
+   elm_win_autodel_set(win, EINA_TRUE);
+
+   bx = elm_box_add(win);
+   evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
+   elm_win_resize_object_add(win, bx);
+   evas_object_show(bx);
+
+   gl = elm_glview_add(win);
+   evas_object_size_hint_align_set(gl, EVAS_HINT_FILL, EVAS_HINT_FILL);
+   evas_object_size_hint_weight_set(gl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
+   elm_glview_mode_set(gl, ELM_GLVIEW_ALPHA | ELM_GLVIEW_DEPTH);
+   elm_glview_resize_policy_set(gl, ELM_GLVIEW_RESIZE_POLICY_RECREATE);
+   elm_glview_render_policy_set(gl, ELM_GLVIEW_RENDER_POLICY_ON_DEMAND);
+   elm_glview_init_func_set(gl, _init_gl);
+   elm_glview_del_func_set(gl, _del_gl);
+   elm_glview_resize_func_set(gl, _resize_gl);
+   elm_glview_render_func_set(gl, _draw_gl);
+   elm_box_pack_end(bx, gl);
+   evas_object_show(gl);
+
+   elm_object_focus_set(gl, EINA_TRUE);
+
+   ani = ecore_animator_add(_anim, gl);
+   gld->glapi = elm_glview_gl_api_get(gl);
+   evas_object_data_set(gl, "ani", ani);
+   evas_object_data_set(gl, "gld", gld);
+   evas_object_event_callback_add(gl, EVAS_CALLBACK_DEL, _del, gl);
+
+   bt = elm_button_add(win);
+   elm_object_text_set(bt, "OK");
+   evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, EVAS_HINT_FILL);
+   evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0.0);
+   elm_box_pack_end(bx, bt);
+   evas_object_show(bt);
+   evas_object_smart_callback_add(bt, "clicked", _on_done, win);
+
+   evas_object_resize(win, 320, 480);
+   evas_object_show(win);
+}
+#endif