Add OpenGL SDL engine

SVN revision: 45674

1 files changed, 1397 insertions, 0 deletions

diff --git a/legacy/evas/src/modules/engines/gl_sdl/evas_engine.c b/legacy/evas/src/modules/engines/gl_sdl/evas_engine.c
new file mode 100644
index 0000000000..b4e0459ec2
--- /dev/null
+++ b/legacy/evas/src/modules/engines/gl_sdl/evas_engine.c
@@ -0,0 +1,1397 @@
+#include "evas_common.h"
+#include "evas_engine.h"
+
+#include <dlfcn.h>      /* dlopen,dlclose,etc */
+
+static void*                     _sdl_output_setup      (int w, int h, int fullscreen, int noframe);
+                
+int _evas_engine_GL_SDL_log_dom = -1;
+/* function tables - filled in later (func and parent func) */
+static Evas_Func func, pfunc;
+
+static void *
+eng_info(Evas *e)
+{
+   Evas_Engine_Info_GL_SDL *info;
+
+   info = calloc(1, sizeof(Evas_Engine_Info_GL_SDL));
+   if (!info) return NULL;
+   info->magic.magic = rand();
+   return info;
+}
+
+static void
+eng_info_free(Evas *e __UNUSED__, void *info)
+{
+   Evas_Engine_Info_GL_SDL *in;
+   in = (Evas_Engine_Info_GL_SDL *)info;
+   free(in);
+}
+
+static int
+eng_setup(Evas *e, void *in)
+{
+   Render_Engine *re;
+   Evas_Engine_Info_GL_SDL *info;
+
+   info = (Evas_Engine_Info_GL_SDL *)in;
+
+   SDL_Init(SDL_INIT_NOPARACHUTE);
+
+   if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
+     {
+        ERR("SDL_Init failed with %s", SDL_GetError());
+        SDL_Quit();
+        return 0;
+     }
+
+   re = _sdl_output_setup(e->output.w, e->output.h,
+                             info->flags.fullscreen,
+                             info->flags.noframe);
+   re->info = info;
+   e->engine.data.output = re;
+   if (!e->engine.data.output)
+     return 0;
+
+   e->engine.func = &func;
+   e->engine.data.context = e->engine.func->context_new(e->engine.data.output);
+   
+   return 1;
+}
+
+static void
+eng_output_free(void *data)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   evas_gl_common_context_free(re->gl_context);
+   free(re);
+
+   evas_common_font_shutdown();
+   evas_common_image_shutdown();
+
+   SDL_QuitSubSystem(SDL_INIT_VIDEO);
+}
+
+static void
+eng_output_resize(void *data, int w, int h)
+{
+   Render_Engine        *re;
+   SDL_Surface          *surface;
+
+   re = (Render_Engine *)data;
+   re->w = w;
+   re->h = h;
+
+   surface = SDL_SetVideoMode(w, h, 32, EVAS_SDL_GL_FLAG
+                              | (re->info->flags.fullscreen ? SDL_FULLSCREEN : 0)
+                              | (re->info->flags.noframe ? SDL_NOFRAME : 0));
+   if (!surface)
+     {
+        ERR("Unable to change the resolution to : %ix%i", w, h);
+        exit(-1);
+     }
+
+   evas_gl_common_context_resize(re->gl_context, w, h);
+}
+
+static void
+eng_output_tile_size_set(void *data, int w __UNUSED__, int h __UNUSED__)
+{
+//   Render_Engine *re;
+//
+//   re = (Render_Engine *)data;
+}
+
+static void
+eng_output_redraws_rect_add(void *data, int x, int y, int w, int h)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   evas_gl_common_context_resize(re->gl_context, re->w, re->h);
+   /* smple bounding box */
+   if (!re->draw.redraw)
+     {
+#if 0
+        re->draw.x1 = x;
+        re->draw.y1 = y;
+        re->draw.x2 = x + w - 1;
+        re->draw.y2 = y + h - 1;
+#else
+        re->draw.x1 = 0;
+        re->draw.y1 = 0;
+        re->draw.x2 = re->w - 1;
+        re->draw.y2 = re->h - 1;
+#endif
+     }
+   else
+     {
+        if (x < re->draw.x1) re->draw.x1 = x;
+        if (y < re->draw.y1) re->draw.y1 = y;
+        if ((x + w - 1) > re->draw.x2) re->draw.x2 = x + w - 1;
+        if ((y + h - 1) > re->draw.y2) re->draw.y2 = y + h - 1;
+     }
+   re->draw.redraw = 1;
+}
+
+static void
+eng_output_redraws_rect_del(void *data, int x __UNUSED__, int y __UNUSED__, int w __UNUSED__, int h __UNUSED__)
+{
+//   Render_Engine *re;
+//
+//   re = (Render_Engine *)data;
+}
+
+static void
+eng_output_redraws_clear(void *data)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   re->draw.redraw = 0;
+//   INF("GL: finish update cycle!");
+}
+
+/* at least the nvidia drivers are so abysmal that copying from the backbuffer
+ * to the front using glCopyPixels() that you literally can WATCH it draw the
+ * pixels slowly across the screen with a window update taking multiple
+ * seconds - so workaround by doing a full buffer render as frankly GL isn't
+ * up to doing anything that isn't done by quake (etc.)
+ */
+#define SLOW_GL_COPY_RECT 1
+/* vsync games - not for now though */
+//#define VSYNC_TO_SCREEN 1
+
+static void *
+eng_output_redraws_next_update_get(void *data, int *x, int *y, int *w, int *h, int *cx, int *cy, int *cw, int *ch)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   evas_gl_common_context_flush(re->gl_context);
+   /* get the upate rect surface - return engine data as dummy */
+   if (!re->draw.redraw)
+     {
+//      printf("GL: NO updates!\n");
+        return NULL;
+     }
+//   printf("GL: update....!\n");
+#ifdef SLOW_GL_COPY_RECT
+   /* if any update - just return the whole canvas - works with swap
+    * buffers then */
+   if (x) *x = 0;
+   if (y) *y = 0;
+   if (w) *w = re->w;
+   if (h) *h = re->h;
+   if (cx) *cx = 0;
+   if (cy) *cy = 0;
+   if (cw) *cw = re->w;
+   if (ch) *ch = re->h;
+#else
+   /* 1 update - INCREDIBLY SLOW if combined with swap_rect in flush. a gl
+    * problem where there just is no hardware path for somethnig that
+    * obviously SHOULD be there */
+   /* only 1 update to minimise gl context games and rendering multiple update
+    * regions as evas does with other engines
+    */
+   if (x) *x = re->draw.x1;
+   if (y) *y = re->draw.y1;
+   if (w) *w = re->draw.x2 - re->draw.x1 + 1;
+   if (h) *h = re->draw.y2 - re->draw.y1 + 1;
+   if (cx) *cx = re->draw.x1;
+   if (cy) *cy = re->draw.y1;
+   if (cw) *cw = re->draw.x2 - re->draw.x1 + 1;
+   if (ch) *ch = re->draw.y2 - re->draw.y1 + 1;
+#endif
+// clear buffer. only needed for dest alpha
+//   glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+//   glClear(GL_COLOR_BUFFER_BIT);
+//x//   printf("frame -> new\n");
+   return re->gl_context->def_surface;
+}
+
+static void
+eng_output_redraws_next_update_push(void *data, void *surface __UNUSED__, int x __UNUSED__, int y __UNUSED__, int w __UNUSED__, int h __UNUSED__)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   /* put back update surface.. in this case just unflag redraw */
+   re->draw.redraw = 0;
+   re->draw.drew = 1;
+   evas_gl_common_context_flush(re->gl_context);
+//x//   printf("frame -> push\n");
+}
+
+static void
+eng_output_flush(void *data)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   if (!re->draw.drew) return;
+//x//   printf("frame -> flush\n");
+   re->draw.drew = 0;
+
+#if 0
+#if defined (GLES_VARIETY_S3C6410) || defined (GLES_VARIETY_SGX)
+//   glFlush();
+   eglSwapBuffers(re->egl_disp, re->egl_surface[0]);
+#else
+   glXSwapBuffers(re->win->disp, re->win);
+#endif   
+#else
+   SDL_GL_SwapBuffers();
+#endif
+}
+
+static void
+eng_output_idle_flush(void *data)
+{
+//   Render_Engine *re;
+//
+//   re = (Render_Engine *)data;
+}
+
+static void
+eng_context_cutout_add(void *data, void *context, int x, int y, int w, int h)
+{
+//   Render_Engine *re;
+//
+//   re = (Render_Engine *)data;
+//   re->gl_context->dc = context;
+   evas_common_draw_context_add_cutout(context, x, y, w, h);
+}
+
+static void
+eng_context_cutout_clear(void *data, void *context)
+{
+//   Render_Engine *re;
+//
+//   re = (Render_Engine *)data;
+//   re->gl_context->dc = context;
+   evas_common_draw_context_clear_cutouts(context);
+}
+
+static void
+eng_rectangle_draw(void *data, void *context, void *surface, int x, int y, int w, int h)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   evas_gl_common_context_target_surface_set(re->gl_context, surface);
+   re->gl_context->dc = context;
+   evas_gl_common_rect_draw(re->gl_context, x, y, w, h);
+}
+
+static void
+eng_line_draw(void *data, void *context, void *surface, int x1, int y1, int x2, int y2)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   evas_gl_common_context_target_surface_set(re->gl_context, surface);
+   re->gl_context->dc = context;
+   evas_gl_common_line_draw(re->gl_context, x1, y1, x2, y2);
+}
+
+static void *
+eng_polygon_point_add(void *data, void *context __UNUSED__, void *polygon, int x, int y)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   return evas_gl_common_poly_point_add(polygon, x, y);
+}
+
+static void *
+eng_polygon_points_clear(void *data, void *context __UNUSED__, void *polygon)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   return evas_gl_common_poly_points_clear(polygon);
+}
+
+static void
+eng_polygon_draw(void *data, void *context, void *surface, void *polygon)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   evas_gl_common_context_target_surface_set(re->gl_context, surface);
+   re->gl_context->dc = context;
+   evas_gl_common_poly_draw(re->gl_context, polygon);
+}
+
+static void
+eng_gradient2_color_np_stop_insert(void *data __UNUSED__, void *gradient __UNUSED__, int r __UNUSED__, int g __UNUSED__, int b __UNUSED__, int a __UNUSED__, float pos __UNUSED__)
+{
+   evas_common_gradient2_color_np_stop_insert(gradient, r, g, b, a, pos);
+}
+
+static void
+eng_gradient2_clear(void *data __UNUSED__, void *gradient __UNUSED__)
+{
+   evas_common_gradient2_clear(gradient);
+}
+
+static void
+eng_gradient2_fill_transform_set(void *data __UNUSED__, void *gradient __UNUSED__, void *transform __UNUSED__)
+{
+   evas_common_gradient2_fill_transform_set(gradient, transform);
+}
+
+static void
+eng_gradient2_fill_spread_set(void *data __UNUSED__, void *gradient __UNUSED__, int spread __UNUSED__)
+{
+   evas_common_gradient2_fill_spread_set(gradient, spread);
+}
+
+static void *
+eng_gradient2_linear_new(void *data __UNUSED__)
+{
+   return evas_common_gradient2_linear_new();
+}
+
+static void
+eng_gradient2_linear_free(void *data __UNUSED__, void *linear_gradient __UNUSED__)
+{
+   evas_common_gradient2_free(linear_gradient);
+}
+
+static void
+eng_gradient2_linear_fill_set(void *data __UNUSED__, void *linear_gradient __UNUSED__, float x0 __UNUSED__, float y0 __UNUSED__, float x1 __UNUSED__, float y1 __UNUSED__)
+{
+   evas_common_gradient2_linear_fill_set(linear_gradient, x0, y0, x1, y1);
+}
+
+static int
+eng_gradient2_linear_is_opaque(void *data __UNUSED__, void *context __UNUSED__, void *linear_gradient __UNUSED__, int x __UNUSED__, int y __UNUSED__, int w __UNUSED__, int h __UNUSED__)
+{
+   RGBA_Draw_Context *dc = (RGBA_Draw_Context *)context;
+   RGBA_Gradient2 *gr = (RGBA_Gradient2 *)linear_gradient;
+
+   if (!dc || !gr || !gr->type.geometer)  return 0;
+   return !(gr->type.geometer->has_alpha(gr, dc->render_op) |
+            gr->type.geometer->has_mask(gr, dc->render_op));
+}
+
+static int
+eng_gradient2_linear_is_visible(void *data __UNUSED__, void *context __UNUSED__, void *linear_gradient __UNUSED__, int x __UNUSED__, int y __UNUSED__, int w __UNUSED__, int h __UNUSED__)
+{
+   RGBA_Draw_Context *dc = (RGBA_Draw_Context *)context;
+
+   if (!dc || !linear_gradient)  return 0;
+   return 1;
+}
+
+static void
+eng_gradient2_linear_render_pre(void *data __UNUSED__, void *context __UNUSED__, void *linear_gradient __UNUSED__)
+{
+   RGBA_Draw_Context *dc = (RGBA_Draw_Context *)context;
+   RGBA_Gradient2 *gr = (RGBA_Gradient2 *)linear_gradient;
+   int  len;
+   
+   if (!dc || !gr || !gr->type.geometer)  return;
+   gr->type.geometer->geom_update(gr);
+   len = gr->type.geometer->get_map_len(gr);
+   evas_common_gradient2_map(dc, gr, len);
+}
+
+static void
+eng_gradient2_linear_render_post(void *data __UNUSED__, void *linear_gradient __UNUSED__)
+{
+}
+
+static void
+eng_gradient2_linear_draw(void *data __UNUSED__, void *context __UNUSED__, void *surface __UNUSED__, void *linear_gradient __UNUSED__, int x __UNUSED__, int y __UNUSED__, int w __UNUSED__, int h __UNUSED__)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   re->gl_context->dc = context;
+     {
+        Evas_GL_Image *gim;
+        RGBA_Image *im;
+        RGBA_Draw_Context *dc = context;
+        int op = dc->render_op, cuse = dc->clip.use;
+        
+        im = (RGBA_Image *)evas_cache_image_empty(evas_common_image_cache_get());
+        im = (RGBA_Image *)evas_cache_image_size_set(&im->cache_entry, w, h);
+        
+        dc->render_op = _EVAS_RENDER_FILL;
+        dc->clip.use = 0;
+        
+        // draw to buf, copy to tex, draw tex
+        evas_common_gradient2_draw(im, dc, 0, 0, w, h, linear_gradient);
+
+        gim = evas_gl_common_image_new_from_data(re->gl_context, w, h,
+                                                 im->image.data, 1,
+                                                 EVAS_COLORSPACE_ARGB8888);
+        dc->render_op = op;
+        dc->clip.use = cuse;
+        evas_gl_common_image_draw(re->gl_context, gim, 0, 0, w, h, x, y, w, h, 0);
+        evas_cache_image_drop(&im->cache_entry);
+        evas_gl_common_image_free(gim);
+     }
+}
+
+static void *
+eng_gradient2_radial_new(void *data __UNUSED__)
+{
+   return evas_common_gradient2_radial_new();
+}
+
+static void
+eng_gradient2_radial_free(void *data __UNUSED__, void *radial_gradient __UNUSED__)
+{
+   evas_common_gradient2_free(radial_gradient);
+}
+
+static void
+eng_gradient2_radial_fill_set(void *data __UNUSED__, void *radial_gradient __UNUSED__, float cx __UNUSED__, float cy __UNUSED__, float rx __UNUSED__, float ry __UNUSED__)
+{
+   evas_common_gradient2_radial_fill_set(radial_gradient, cx, cy, rx, ry);
+}
+
+static int
+eng_gradient2_radial_is_opaque(void *data __UNUSED__, void *context __UNUSED__, void *radial_gradient __UNUSED__, int x __UNUSED__, int y __UNUSED__, int w __UNUSED__, int h __UNUSED__)
+{
+   RGBA_Draw_Context *dc = (RGBA_Draw_Context *)context;
+   RGBA_Gradient2 *gr = (RGBA_Gradient2 *)radial_gradient;
+   
+   if (!dc || !gr || !gr->type.geometer)  return 0;
+   return !(gr->type.geometer->has_alpha(gr, dc->render_op) |
+            gr->type.geometer->has_mask(gr, dc->render_op));
+}
+
+static int
+eng_gradient2_radial_is_visible(void *data __UNUSED__, void *context __UNUSED__, void *radial_gradient __UNUSED__, int x __UNUSED__, int y __UNUSED__, int w __UNUSED__, int h __UNUSED__)
+{
+   RGBA_Draw_Context *dc = (RGBA_Draw_Context *)context;
+   
+   if (!dc || !radial_gradient)  return 0;
+   return 1;
+}
+
+static void
+eng_gradient2_radial_render_pre(void *data __UNUSED__, void *context __UNUSED__, void *radial_gradient __UNUSED__)
+{
+   RGBA_Draw_Context *dc = (RGBA_Draw_Context *)context;
+   RGBA_Gradient2 *gr = (RGBA_Gradient2 *)radial_gradient;
+   int  len;
+   
+   if (!dc || !gr || !gr->type.geometer)  return;
+   gr->type.geometer->geom_update(gr);
+   len = gr->type.geometer->get_map_len(gr);
+   evas_common_gradient2_map(dc, gr, len);
+}
+
+static void
+eng_gradient2_radial_render_post(void *data __UNUSED__, void *radial_gradient __UNUSED__)
+{
+}
+
+static void
+eng_gradient2_radial_draw(void *data __UNUSED__, void *context __UNUSED__, void *surface __UNUSED__, void *radial_gradient __UNUSED__, int x __UNUSED__, int y __UNUSED__, int w __UNUSED__, int h __UNUSED__)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   re->gl_context->dc = context;
+     {
+        Evas_GL_Image *gim;
+        RGBA_Image *im;
+        RGBA_Draw_Context *dc = context;
+        int op = dc->render_op, cuse = dc->clip.use;
+        
+        im = (RGBA_Image *)evas_cache_image_empty(evas_common_image_cache_get());
+        im = (RGBA_Image *)evas_cache_image_size_set(&im->cache_entry, w, h);
+        
+        dc->render_op = _EVAS_RENDER_FILL;
+        dc->clip.use = 0;
+        
+        // draw to buf, copy to tex, draw tex
+        evas_common_gradient2_draw(im, dc, 0, 0, w, h, radial_gradient);
+
+        gim = evas_gl_common_image_new_from_data(re->gl_context, w, h,
+                                                 im->image.data, 1,
+                                                 EVAS_COLORSPACE_ARGB8888);
+        dc->render_op = op;
+        dc->clip.use = cuse;
+        evas_gl_common_image_draw(re->gl_context, gim, 0, 0, w, h, x, y, w, h, 0);
+        evas_cache_image_drop(&im->cache_entry);
+        evas_gl_common_image_free(gim);
+     }
+}
+
+static void *
+eng_gradient_new(void *data __UNUSED__)
+{
+   return evas_common_gradient_new();
+}
+
+static void
+eng_gradient_free(void *data __UNUSED__, void *gradient)
+{
+   evas_common_gradient_free(gradient);
+}
+
+static void
+eng_gradient_color_stop_add(void *data __UNUSED__, void *gradient, int r, int g, int b, int a, int delta)
+{
+   evas_common_gradient_color_stop_add(gradient, r, g, b, a, delta);
+}
+
+static void
+eng_gradient_alpha_stop_add(void *data __UNUSED__, void *gradient, int a, int delta)
+{
+   evas_common_gradient_alpha_stop_add(gradient, a, delta);
+}
+
+static void
+eng_gradient_color_data_set(void *data __UNUSED__, void *gradient, void *map, int len, int has_alpha)
+{
+   evas_common_gradient_color_data_set(gradient, map, len, has_alpha);
+}
+
+static void
+eng_gradient_alpha_data_set(void *data __UNUSED__, void *gradient, void *alpha_map, int len)
+{
+   evas_common_gradient_alpha_data_set(gradient, alpha_map, len);
+}
+
+static void
+eng_gradient_clear(void *data __UNUSED__, void *gradient)
+{
+   evas_common_gradient_clear(gradient);
+}
+
+static void
+eng_gradient_fill_set(void *data __UNUSED__, void *gradient, int x, int y, int w, int h)
+{
+   evas_common_gradient_fill_set(gradient, x, y, w, h);
+}
+
+static void
+eng_gradient_fill_angle_set(void *data __UNUSED__, void *gradient, double angle)
+{
+   evas_common_gradient_fill_angle_set(gradient, angle);
+}
+
+static void
+eng_gradient_fill_spread_set(void *data __UNUSED__, void *gradient, int spread)
+{
+   evas_common_gradient_fill_spread_set(gradient, spread);
+}
+
+static void
+eng_gradient_angle_set(void *data __UNUSED__, void *gradient, double angle)
+{
+   evas_common_gradient_map_angle_set(gradient, angle);
+}
+
+static void
+eng_gradient_offset_set(void *data __UNUSED__, void *gradient, float offset)
+{
+   evas_common_gradient_map_offset_set(gradient, offset);
+}
+
+static void
+eng_gradient_direction_set(void *data __UNUSED__, void *gradient, int direction)
+{
+   evas_common_gradient_map_direction_set(gradient, direction);
+}
+
+static void
+eng_gradient_type_set(void *data __UNUSED__, void *gradient, char *name, char *params)
+{
+   evas_common_gradient_type_set(gradient, name, params);
+}
+
+static int
+eng_gradient_is_opaque(void *data, void *context, void *gradient, int x, int y, int w, int h)
+{
+   RGBA_Draw_Context *dc = (RGBA_Draw_Context *)context;
+   RGBA_Gradient *gr = (RGBA_Gradient *)gradient;
+   
+   if (!dc || !gr || !gr->type.geometer)  return 0;
+   return !(gr->type.geometer->has_alpha(gr, dc->render_op) |
+            gr->type.geometer->has_mask(gr, dc->render_op));
+}
+
+static int
+eng_gradient_is_visible(void *data, void *context, void *gradient, int x, int y, int w, int h)
+{
+   RGBA_Draw_Context *dc = (RGBA_Draw_Context *)context;
+   
+   if (!dc || !gradient)  return 0;
+   return 1;
+}
+
+static void
+eng_gradient_render_pre(void *data, void *context, void *gradient)
+{
+   RGBA_Draw_Context *dc = (RGBA_Draw_Context *)context;
+   RGBA_Gradient *gr = (RGBA_Gradient *)gradient;
+   int  len;
+   
+   if (!dc || !gr || !gr->type.geometer)  return;
+   gr->type.geometer->geom_set(gr);
+   len = gr->type.geometer->get_map_len(gr);
+   evas_common_gradient_map(dc, gr, len);
+}
+
+static void
+eng_gradient_render_post(void *data __UNUSED__, void *gradient)
+{
+}
+
+static void
+eng_gradient_draw(void *data, void *context, void *surface __UNUSED__, void *gradient, int x, int y, int w, int h)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   re->gl_context->dc = context;
+     {
+        Evas_GL_Image *gim;
+        RGBA_Image *im;
+        RGBA_Draw_Context *dc = context;
+        int op = dc->render_op, cuse = dc->clip.use;
+        
+        im = (RGBA_Image *)evas_cache_image_empty(evas_common_image_cache_get());
+        im = (RGBA_Image *)evas_cache_image_size_set(&im->cache_entry, w, h);
+        
+        dc->render_op = _EVAS_RENDER_FILL;
+        dc->clip.use = 0;
+        
+        // draw to buf, copy to tex, draw tex
+        evas_common_gradient_draw(im, dc, 0, 0, w, h, gradient);
+
+        gim = evas_gl_common_image_new_from_data(re->gl_context, w, h,
+                                                 im->image.data, 1,
+                                                 EVAS_COLORSPACE_ARGB8888);
+        dc->render_op = op;
+        dc->clip.use = cuse;
+        evas_gl_common_image_draw(re->gl_context, gim, 0, 0, w, h, x, y, w, h, 0);
+        evas_cache_image_drop(&im->cache_entry);
+        evas_gl_common_image_free(gim);
+     }
+}
+
+static int
+eng_image_alpha_get(void *data, void *image)
+{
+//   Render_Engine *re;
+   Evas_GL_Image *im;
+
+//   re = (Render_Engine *)data;
+   if (!image) return 1;
+   im = image;
+   return im->alpha;
+}
+
+static int
+eng_image_colorspace_get(void *data, void *image)
+{
+//   Render_Engine *re;
+   Evas_GL_Image *im;
+
+//   re = (Render_Engine *)data;
+   if (!image) return EVAS_COLORSPACE_ARGB8888;
+   im = image;
+   return im->cs.space;
+}
+
+static void *
+eng_image_alpha_set(void *data, void *image, int has_alpha)
+{
+   Render_Engine *re;
+   Evas_GL_Image *im;
+
+   re = (Render_Engine *)data;
+   if (!image) return NULL;
+   im = image;
+   if (im->native.data)
+     {
+        im->alpha = has_alpha;
+        return image;
+     }
+   /* FIXME: can move to gl_common */
+   if (im->cs.space != EVAS_COLORSPACE_ARGB8888) return im;
+   if ((has_alpha) && (im->im->cache_entry.flags.alpha)) return image;
+   else if ((!has_alpha) && (!im->im->cache_entry.flags.alpha)) return image;
+   if (im->references > 1)
+     {
+        Evas_GL_Image *im_new;
+        
+        im_new = evas_gl_common_image_new_from_copied_data(im->gc, im->im->cache_entry.w, im->im->cache_entry.h, im->im->image.data,
+                                                           eng_image_alpha_get(data, image),
+                                                           eng_image_colorspace_get(data, image));
+        if (!im_new) return im;
+        evas_gl_common_image_free(im);
+        im = im_new;
+     }
+   else
+     evas_gl_common_image_dirty(im, 0, 0, 0, 0);
+   im->im->cache_entry.flags.alpha = has_alpha ? 1 : 0;
+   return image;
+}
+
+static void *
+eng_image_border_set(void *data, void *image, int l __UNUSED__, int r __UNUSED__, int t __UNUSED__, int b __UNUSED__)
+{
+//   Render_Engine *re;
+//
+//   re = (Render_Engine *)data;
+   return image;
+}
+
+static void
+eng_image_border_get(void *data, void *image __UNUSED__, int *l __UNUSED__, int *r __UNUSED__, int *t __UNUSED__, int *b __UNUSED__)
+{
+//   Render_Engine *re;
+//
+//   re = (Render_Engine *)data;
+}
+
+static char *
+eng_image_comment_get(void *data, void *image, char *key __UNUSED__)
+{
+//   Render_Engine *re;
+   Evas_GL_Image *im;
+
+//   re = (Render_Engine *)data;
+   if (!image) return NULL;
+   im = image;
+   if (!im->im) return NULL;
+   return im->im->info.comment;
+}
+
+static char *
+eng_image_format_get(void *data, void *image)
+{
+//   Render_Engine *re;
+   Evas_GL_Image *im;
+
+//   re = (Render_Engine *)data;
+   im = image;
+   return NULL;
+}
+
+static void
+eng_image_colorspace_set(void *data, void *image, int cspace)
+{
+   Render_Engine *re;
+   Evas_GL_Image *im;
+
+   re = (Render_Engine *)data;
+   if (!image) return;
+   im = image;
+   if (im->native.data) return;
+   /* FIXME: can move to gl_common */
+   if (im->cs.space == cspace) return;
+   evas_cache_image_colorspace(&im->im->cache_entry, cspace);
+   switch (cspace)
+     {
+      case EVAS_COLORSPACE_ARGB8888:
+        if (im->cs.data)
+          {
+             if (!im->cs.no_free) free(im->cs.data);
+             im->cs.data = NULL;
+             im->cs.no_free = 0;
+          }
+        break;
+      case EVAS_COLORSPACE_YCBCR422P601_PL:
+      case EVAS_COLORSPACE_YCBCR422P709_PL:
+        if (im->tex) evas_gl_common_texture_free(im->tex);
+        im->tex = NULL;
+        if (im->cs.data)
+          {
+             if (!im->cs.no_free) free(im->cs.data);
+          }
+        im->cs.data = calloc(1, im->im->cache_entry.h * sizeof(unsigned char *) * 2);
+        im->cs.no_free = 0;
+        break;
+      default:
+        abort();
+        break;
+     }
+   im->cs.space = cspace;
+}
+
+/////////////////////////////////////////////////////////////////////////
+//
+//
+typedef struct _Native Native;
+
+struct _Native
+{
+   Evas_Native_Surface ns;
+   
+#if defined (GLES_VARIETY_S3C6410) || defined (GLES_VARIETY_SGX)
+   EGLSurface  egl_surface;
+#endif
+};
+
+static void
+_native_bind_cb(void *data, void *image)
+{
+}
+
+static void
+_native_unbind_cb(void *data, void *image)
+{
+}
+
+static void
+_native_free_cb(void *data, void *image)
+{
+}
+
+static void
+eng_image_native_set(void *data, void *image, void *native)
+{
+}
+
+static void *
+eng_image_native_get(void *data, void *image)
+{
+   return NULL;
+}
+
+//
+//
+/////////////////////////////////////////////////////////////////////////
+
+static void *
+eng_image_load(void *data, const char *file, const char *key, int *error, Evas_Image_Load_Opts *lo)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   *error = EVAS_LOAD_ERROR_NONE;
+   return evas_gl_common_image_load(re->gl_context, file, key, lo, error);
+}
+
+static void *
+eng_image_new_from_data(void *data, int w, int h, DATA32 *image_data, int alpha, int cspace)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   return evas_gl_common_image_new_from_data(re->gl_context, w, h, image_data, alpha, cspace);
+}
+
+static void *
+eng_image_new_from_copied_data(void *data, int w, int h, DATA32 *image_data, int alpha, int cspace)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   return evas_gl_common_image_new_from_copied_data(re->gl_context, w, h, image_data, alpha, cspace);
+}
+
+static void
+eng_image_free(void *data, void *image)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   if (!image) return;
+   evas_gl_common_image_free(image);
+}
+
+static void
+eng_image_size_get(void *data, void *image, int *w, int *h)
+{
+//   Render_Engine *re;
+//
+//   re = (Render_Engine *)data;
+   if (!image)
+     {
+        *w = 0;
+        *h = 0;
+        return;
+     }
+   if (w) *w = ((Evas_GL_Image *)image)->w;
+   if (h) *h = ((Evas_GL_Image *)image)->h;
+}
+
+static void *
+eng_image_size_set(void *data, void *image, int w, int h)
+{
+   Render_Engine *re;
+   Evas_GL_Image *im = image;
+   Evas_GL_Image *im_old;
+   
+   re = (Render_Engine *)data;
+   if (!im) return NULL;
+   if (im->native.data)
+     {
+        im->w = w;
+        im->h = h;
+        return image;
+     }
+   im_old = image;
+   if ((eng_image_colorspace_get(data, image) == EVAS_COLORSPACE_YCBCR422P601_PL) ||
+       (eng_image_colorspace_get(data, image) == EVAS_COLORSPACE_YCBCR422P709_PL))
+     w &= ~0x1;
+   if ((im_old) && (im_old->im->cache_entry.w == w) && (im_old->im->cache_entry.h == h))
+     return image;
+   if (im_old)
+     {
+        im = evas_gl_common_image_new(re->gl_context, w, h,
+                                      eng_image_alpha_get(data, image),
+                                      eng_image_colorspace_get(data, image));
+/*
+        evas_common_load_image_data_from_file(im_old->im);
+        if (im_old->im->image->data)
+          {
+             evas_common_blit_rectangle(im_old->im, im->im, 0, 0, w, h, 0, 0);
+             evas_common_cpu_end_opt();
+          }
+ */
+        evas_gl_common_image_free(im_old);
+     }
+   else
+     im = evas_gl_common_image_new(re->gl_context, w, h, 1, EVAS_COLORSPACE_ARGB8888);
+   return im;
+}
+
+static void *
+eng_image_dirty_region(void *data, void *image, int x, int y, int w, int h)
+{
+   Render_Engine *re;
+   Evas_GL_Image *im = image;
+
+   re = (Render_Engine *)data;
+   if (!image) return NULL;
+   if (im->native.data) return image;
+   evas_gl_common_image_dirty(image, x, y, w, h);
+   return image;
+}
+
+static void *
+eng_image_data_get(void *data, void *image, int to_write, DATA32 **image_data)
+{
+   Render_Engine *re;
+   Evas_GL_Image *im;
+
+   re = (Render_Engine *)data;
+   if (!image)
+     {
+        *image_data = NULL;
+        return NULL;
+     }
+   im = image;
+   if (im->native.data)
+     {
+        *image_data = NULL;
+        return im;
+     }
+   evas_cache_image_load_data(&im->im->cache_entry);
+   switch (im->cs.space)
+     {
+      case EVAS_COLORSPACE_ARGB8888:
+        if (to_write)
+          {
+             if (im->references > 1)
+               {
+                  Evas_GL_Image *im_new;
+
+                  im_new = evas_gl_common_image_new_from_copied_data(im->gc, im->im->cache_entry.w, im->im->cache_entry.h, im->im->image.data,
+                                                                     eng_image_alpha_get(data, image),
+                                                                     eng_image_colorspace_get(data, image));
+                  if (!im_new)
+                    {
+                       *image_data = NULL;
+                       return im;
+                    }
+                  evas_gl_common_image_free(im);
+                  im = im_new;
+               }
+             else
+               evas_gl_common_image_dirty(im, 0, 0, 0, 0);
+          }
+        *image_data = im->im->image.data;
+        break;
+      case EVAS_COLORSPACE_YCBCR422P601_PL:
+      case EVAS_COLORSPACE_YCBCR422P709_PL:
+        *image_data = im->cs.data;
+        break;
+      default:
+        abort();
+        break;
+     }
+   return im;
+}
+
+static void *
+eng_image_data_put(void *data, void *image, DATA32 *image_data)
+{
+   Render_Engine *re;
+   Evas_GL_Image *im, *im2;
+
+   re = (Render_Engine *)data;
+   if (!image) return NULL;
+   im = image;
+   if (im->native.data) return image;
+   switch (im->cs.space)
+     {
+      case EVAS_COLORSPACE_ARGB8888:
+        if (image_data != im->im->image.data)
+          {
+             int w, h;
+
+             w = im->im->cache_entry.w;
+             h = im->im->cache_entry.h;
+             im2 = eng_image_new_from_data(data, w, h, image_data,
+                                           eng_image_alpha_get(data, image),
+                                           eng_image_colorspace_get(data, image));
+             if (!im2) return im;
+             evas_gl_common_image_free(im);
+             im = im2;
+          }
+        break;
+      case EVAS_COLORSPACE_YCBCR422P601_PL:
+      case EVAS_COLORSPACE_YCBCR422P709_PL:
+        if (image_data != im->cs.data)
+          {
+             if (im->cs.data)
+               {
+                  if (!im->cs.no_free) free(im->cs.data);
+               }
+             im->cs.data = image_data;
+          }
+        break;
+      default:
+        abort();
+        break;
+     }
+   /* hmmm - but if we wrote... why bother? */
+   evas_gl_common_image_dirty(im, 0, 0, 0, 0);
+   return im;
+}
+
+static void
+eng_image_data_preload_request(void *data __UNUSED__, void *image, const void *target)
+{
+   Evas_GL_Image *gim = image;
+   RGBA_Image *im;
+
+   if (!gim) return;
+   if (gim->native.data) return;
+   im = (RGBA_Image *)gim->im;
+   if (!im) return;
+   evas_cache_image_preload_data(&im->cache_entry, target);
+}
+
+static void
+eng_image_data_preload_cancel(void *data __UNUSED__, void *image, const void *target)
+{
+   Evas_GL_Image *gim = image;
+   RGBA_Image *im;
+
+   if (!gim) return;
+   if (gim->native.data) return;
+   im = (RGBA_Image *)gim->im;
+   if (!im) return;
+   evas_cache_image_preload_cancel(&im->cache_entry, target);
+}
+
+static void
+eng_image_draw(void *data, void *context, void *surface, void *image, int src_x, int src_y, int src_w, int src_h, int dst_x, int dst_y, int dst_w, int dst_h, int smooth)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   if (!image) return;
+   evas_gl_common_context_target_surface_set(re->gl_context, surface);
+   re->gl_context->dc = context;
+   evas_gl_common_image_draw(re->gl_context, image,
+                             src_x, src_y, src_w, src_h,
+                             dst_x, dst_y, dst_w, dst_h,
+                             smooth);
+}
+
+static void
+eng_image_scale_hint_set(void *data __UNUSED__, void *image, int hint)
+{
+}
+
+static void
+eng_image_map4_draw(void *data __UNUSED__, void *context, void *surface, void *image, RGBA_Map_Point *p, int smooth, int level)
+{
+   Render_Engine *re;
+   
+   re = (Render_Engine *)data;
+   evas_gl_common_context_target_surface_set(re->gl_context, surface);
+   re->gl_context->dc = context;
+   evas_gl_common_image_map4_draw(re->gl_context, image, p, smooth, level);
+}
+
+static void *
+eng_image_map_surface_new(void *data __UNUSED__, int w, int h, int alpha)
+{
+   Render_Engine *re;
+   
+   re = (Render_Engine *)data;
+   return evas_gl_common_image_surface_new(re->gl_context, w, h, alpha);
+}
+
+static void
+eng_image_map_surface_free(void *data __UNUSED__, void *surface)
+{
+   evas_gl_common_image_free(surface);
+}
+
+static int
+eng_image_scale_hint_get(void *data __UNUSED__, void *image)
+{
+   return EVAS_IMAGE_SCALE_HINT_NONE;
+}
+
+static void
+eng_font_draw(void *data, void *context, void *surface, void *font, int x, int y, int w __UNUSED__, int h __UNUSED__, int ow __UNUSED__, int oh __UNUSED__, const char *text)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   evas_gl_common_context_target_surface_set(re->gl_context, surface);
+   re->gl_context->dc = context;
+     {
+        // FIXME: put im into context so we can free it
+        static RGBA_Image *im = NULL;
+        
+        if (!im)
+          im = (RGBA_Image *)evas_cache_image_empty(evas_common_image_cache_get());
+        im->cache_entry.w = re->w;
+        im->cache_entry.h = re->h;
+        evas_common_draw_context_font_ext_set(context,
+                                              re->gl_context,
+                                              evas_gl_font_texture_new,
+                                              evas_gl_font_texture_free,
+                                              evas_gl_font_texture_draw);
+        evas_common_font_draw(im, context, font, x, y, text);
+        evas_common_draw_context_font_ext_set(context,
+                                              NULL,
+                                              NULL,
+                                              NULL,
+                                              NULL);
+     }
+}
+
+static Eina_Bool
+eng_canvas_alpha_get(void *data __UNUSED__, void *info __UNUSED__)
+{
+   // FIXME: support ARGB gl targets!!!
+   return EINA_FALSE;
+}
+
+static int
+module_open(Evas_Module *em)
+{
+   if (!em) return 0;
+   /* get whatever engine module we inherit from */
+   if (!_evas_module_engine_inherit(&pfunc, "software_generic")) return 0;
+   if (_evas_engine_GL_SDL_log_dom < 0)
+     _evas_engine_GL_SDL_log_dom = eina_log_domain_register("EvasEngineGLSDL", EVAS_DEFAULT_LOG_COLOR);
+   if (_evas_engine_GL_SDL_log_dom < 0)
+     {
+        EINA_LOG_ERR("Impossible to create a log domain for GL SDL engine.\n");
+        return 0;
+     }
+   /* store it for later use */
+   func = pfunc;
+   /* now to override methods */
+   #define ORD(f) EVAS_API_OVERRIDE(f, &func, eng_)
+   ORD(info);
+   ORD(info_free);
+   ORD(setup);
+   ORD(canvas_alpha_get);
+   ORD(output_free);
+   ORD(output_resize);
+   ORD(output_tile_size_set);
+   ORD(output_redraws_rect_add);
+   ORD(output_redraws_rect_del);
+   ORD(output_redraws_clear);
+   ORD(output_redraws_next_update_get);
+   ORD(output_redraws_next_update_push);
+   ORD(context_cutout_add);
+   ORD(context_cutout_clear);
+   ORD(output_flush);
+   ORD(output_idle_flush);
+   ORD(rectangle_draw);
+   ORD(line_draw);
+   ORD(polygon_point_add);
+   ORD(polygon_points_clear);
+   ORD(polygon_draw);
+
+   ORD(gradient2_color_np_stop_insert);
+   ORD(gradient2_clear);
+   ORD(gradient2_fill_transform_set);
+   ORD(gradient2_fill_spread_set);
+   ORD(gradient2_linear_new);
+   ORD(gradient2_linear_free);
+   ORD(gradient2_linear_fill_set);
+   ORD(gradient2_linear_is_opaque);
+   ORD(gradient2_linear_is_visible);
+   ORD(gradient2_linear_render_pre);
+   ORD(gradient2_linear_render_post);
+   ORD(gradient2_linear_draw);
+   ORD(gradient2_radial_new);
+   ORD(gradient2_radial_free);
+   ORD(gradient2_radial_fill_set);
+   ORD(gradient2_radial_is_opaque);
+   ORD(gradient2_radial_is_visible);
+   ORD(gradient2_radial_render_pre);
+   ORD(gradient2_radial_render_post);
+   ORD(gradient2_radial_draw);
+
+   ORD(gradient_new);
+   ORD(gradient_free);
+   ORD(gradient_color_stop_add);
+   ORD(gradient_alpha_stop_add);
+   ORD(gradient_color_data_set);
+   ORD(gradient_alpha_data_set);
+   ORD(gradient_clear);
+   ORD(gradient_fill_set);
+   ORD(gradient_fill_angle_set);
+   ORD(gradient_fill_spread_set);
+   ORD(gradient_angle_set);
+   ORD(gradient_offset_set);
+   ORD(gradient_direction_set);
+   ORD(gradient_type_set);
+   ORD(gradient_is_opaque);
+   ORD(gradient_is_visible);
+   ORD(gradient_render_pre);
+   ORD(gradient_render_post);
+   ORD(gradient_draw);
+   ORD(image_load);
+   ORD(image_new_from_data);
+   ORD(image_new_from_copied_data);
+   ORD(image_free);
+   ORD(image_size_get);
+   ORD(image_size_set);
+   ORD(image_dirty_region);
+   ORD(image_data_get);
+   ORD(image_data_put);
+   ORD(image_data_preload_request);
+   ORD(image_data_preload_cancel);
+   ORD(image_alpha_set);
+   ORD(image_alpha_get);
+   ORD(image_border_set);
+   ORD(image_border_get);
+   ORD(image_draw);
+   ORD(image_comment_get);
+   ORD(image_format_get);
+   ORD(image_colorspace_set);
+   ORD(image_colorspace_get);
+   ORD(image_native_set);
+   ORD(image_native_get);
+   ORD(font_draw);
+   
+   ORD(image_scale_hint_set);
+   ORD(image_scale_hint_get);
+   
+   ORD(image_map4_draw);
+   ORD(image_map_surface_new);
+   ORD(image_map_surface_free);
+   
+   /* now advertise out own api */
+   em->functions = (void *)(&func);
+   return 1;
+}
+
+static void
+module_close(Evas_Module *em)
+{
+    eina_log_domain_unregister(_evas_engine_GL_SDL_log_dom);
+}
+
+static Evas_Module_Api evas_modapi =
+{
+   EVAS_MODULE_API_VERSION,
+   "gl_sdl",
+   "none",
+   {
+     module_open,
+     module_close
+   }
+};
+
+EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_ENGINE, engine, gl_sdl);
+
+#ifndef EVAS_STATIC_BUILD_GL_SDL
+EVAS_EINA_MODULE_DEFINE(engine, gl_sdl);
+#endif
+
+static void*
+_sdl_output_setup               (int w, int h, int fullscreen, int noframe)
+{
+   Render_Engine                *re = calloc(1, sizeof(Render_Engine));
+   SDL_Surface                  *surface;
+   int                          context_attrs[3];
+   int                          config_attrs[20];
+   int                          major_version, minor_version;
+   int                          num_config;
+
+   /* if we haven't initialized - init (automatic abort if already done) */
+   evas_common_cpu_init();
+   evas_common_blend_init();
+   evas_common_image_init();
+   evas_common_convert_init();
+   evas_common_scale_init();
+   evas_common_rectangle_init();
+   evas_common_gradient_init();
+   evas_common_polygon_init();
+   evas_common_line_init();
+   evas_common_font_init();
+   evas_common_draw_init();
+   evas_common_tilebuf_init();
+
+   if (w <= 0) w = 640;
+   if (h <= 0) h = 480;
+   
+   /* GL Initialization */
+#ifdef HAVE_SDL_GL_CONTEXT_VERSION
+   SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
+   SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
+#endif
+   SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
+   SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
+   SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
+   SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
+   SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
+   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+
+   surface = SDL_SetVideoMode(w, h, 32, EVAS_SDL_GL_FLAG
+                              | (fullscreen ? SDL_FULLSCREEN : 0)
+                              | (noframe ? SDL_NOFRAME : 0));
+
+   if (!surface)
+     {
+        CRIT("SDL_SetVideoMode [ %i x %i x 32 ] failed.", w, h);
+        exit(-1);
+     }
+
+   re->gl_context = evas_gl_common_context_new();
+   if (!re->gl_context)
+     {
+        free(re);
+        return NULL;
+     }
+   evas_gl_common_context_use(re->gl_context);
+   evas_gl_common_context_resize(re->gl_context, w, h);
+
+   /* End GL Initialization */
+   re->w = w;
+   re->h = h;
+   return re;
+}
+