1 files changed, 594 insertions, 0 deletions

diff --git a/libraries/evas/src/lib/engines/common_16/evas_soft16_main.c b/libraries/evas/src/lib/engines/common_16/evas_soft16_main.c
new file mode 100644
index 0000000..6028744
--- /dev/null
+++ b/libraries/evas/src/lib/engines/common_16/evas_soft16_main.c
@@ -0,0 +1,594 @@
+#include "evas_common_soft16.h"
+
+static Evas_Cache_Image *eci = NULL;
+static int               reference = 0;
+
+static Image_Entry      *_evas_common_soft16_image_new(void);
+static void              _evas_common_soft16_image_delete(Image_Entry *ie);
+
+static int               _evas_common_soft16_image_surface_alloc(Image_Entry *ie, unsigned int w, unsigned int h);
+static void              _evas_common_soft16_image_surface_delete(Image_Entry *ie);
+static DATA32           *_evas_common_soft16_image_surface_pixels(Image_Entry *ie);
+
+static int               _evas_common_load_soft16_image_from_file(Image_Entry *ie);
+static void              _evas_common_soft16_image_unload(Image_Entry *ie);
+
+static void              _evas_common_soft16_image_dirty_region(Image_Entry *im, unsigned int x, unsigned int y, unsigned int w, unsigned int h);
+static int               _evas_common_soft16_image_dirty(Image_Entry *ie_dst, const Image_Entry *ie_src);
+
+static int               _evas_common_soft16_image_ram_usage(Image_Entry *ie);
+
+static int               _evas_common_soft16_image_size_set(Image_Entry *ie_dst, const Image_Entry *ie_im, unsigned int w, unsigned int h);
+static int               _evas_common_soft16_image_from_copied_data(Image_Entry* ie_dst, unsigned int w, unsigned int h, DATA32 *image_data, int alpha, int cspace);
+static int               _evas_common_soft16_image_from_data(Image_Entry* ie_dst, unsigned int w, unsigned int h, DATA32 *image_data, int alpha, int cspace);
+static int               _evas_common_soft16_image_colorspace_set(Image_Entry* ie_dst, int cspace);
+
+static int               _evas_common_load_soft16_image_data_from_file(Image_Entry *ie);
+
+/* static void */
+/* _evas_common_soft16_image_debug(const char* context, Image_Entry *eim) */
+/* { */
+/*    DBG("[16] %p = [%s] {%s,%s} %i [%i|%i]", eim, context, eim->file, eim->key, eim->references, eim->w, eim->h); */
+/* } */
+
+static const Evas_Cache_Image_Func      _evas_common_soft16_image_func =
+{
+   _evas_common_soft16_image_new,
+   _evas_common_soft16_image_delete,
+   _evas_common_soft16_image_surface_alloc,
+   _evas_common_soft16_image_surface_delete,
+   _evas_common_soft16_image_surface_pixels,
+   _evas_common_load_soft16_image_from_file,
+   _evas_common_soft16_image_unload,
+   _evas_common_soft16_image_dirty_region,
+   _evas_common_soft16_image_dirty,
+   _evas_common_soft16_image_size_set,
+   _evas_common_soft16_image_from_copied_data,
+   _evas_common_soft16_image_from_data,
+   _evas_common_soft16_image_colorspace_set,
+   _evas_common_load_soft16_image_data_from_file,
+   _evas_common_soft16_image_ram_usage,
+/*    _evas_common_soft16_image_debug */
+   NULL
+};
+
+EAPI void
+evas_common_soft16_image_init(void)
+{
+   if (!eci)
+     eci = evas_cache_image_init(&_evas_common_soft16_image_func);
+   reference++;
+}
+
+EAPI void
+evas_common_soft16_image_shutdown(void)
+{
+   if (--reference == 0)
+     {
+// DISABLE for now - something wrong with cache shutdown freeing things
+// still in use - rage_thumb segv's now.
+// 
+// actually - i think i see it. cache ref goes to 0 (and thus gets freed)
+// because in eng_setup() when a buffer changes size it is FIRST freed
+// THEN allocated again - thus brignhjing ref to 0 then back to 1 immediately
+// where it should stay at 1. - see evas_engine.c in the buffer enigne for
+// example. eng_output_free() is called BEFORE _output_setup(). although this
+// is only a SIGNE of the problem. we can patch this up with either freeing
+// after the setup (so we just pt a ref of 2 then back to 1), or just 
+// evas_common_image_init() at the start and evas_common_image_shutdown()
+// after it all. really ref 0 should only be reached when no more canvases
+// with no more objects exist anywhere.
+
+// ENABLE IT AGAIN, hope it is fixed. Gustavo @ January 22nd, 2009.
+        evas_cache_image_shutdown(eci);
+        eci = NULL;
+     }
+}
+
+EAPI Evas_Cache_Image *
+evas_common_soft16_image_cache_get(void)
+{
+   return eci;
+}
+
+static Image_Entry *
+_evas_common_soft16_image_new(void)
+{
+   Soft16_Image *im;
+
+   im = calloc(1, sizeof(Soft16_Image));
+   if (!im) return NULL;
+
+   im->stride = -1;
+
+   return (Image_Entry *) im;
+}
+
+static void
+_evas_common_soft16_image_delete(Image_Entry *ie)
+{
+   memset(ie, 0xFF, sizeof (Soft16_Image));
+   free(ie);
+}
+
+static int
+_evas_common_soft16_image_surface_alloc(Image_Entry *ie, unsigned int w, unsigned int h)
+{
+   Soft16_Image *im = (Soft16_Image *) ie;
+
+   if (im->stride < 0) im->stride = _calc_stride(w);
+
+   im->pixels = realloc(im->pixels, IMG_BYTE_SIZE(im->stride, h, ie->flags.alpha));
+   if (!im->pixels) return -1;
+
+   if (ie->flags.alpha)
+     {
+        im->alpha = (DATA8 *)(im->pixels + (im->stride * h));
+        im->flags.free_alpha = 0;
+     }
+   im->flags.free_pixels = 1;
+
+   return 0;
+}
+
+static void
+_evas_common_soft16_image_surface_delete(Image_Entry *ie)
+{
+   Soft16_Image *im = (Soft16_Image *) ie;
+
+   if (im->flags.free_pixels)
+     free(im->pixels);
+   im->pixels = NULL;
+   im->flags.free_pixels = 0;
+
+   if (im->flags.free_alpha)
+     free(im->alpha);
+   im->alpha = NULL;
+   im->flags.free_alpha = 0;
+}
+
+static DATA32 *
+_evas_common_soft16_image_surface_pixels(Image_Entry *ie __UNUSED__)
+{
+   abort();
+
+   return NULL;
+}
+
+static int
+_evas_common_load_soft16_image_from_file(Image_Entry *ie)
+{
+   Soft16_Image *sim = (Soft16_Image *) ie;
+   RGBA_Image   *im;
+   int           error = 0;
+
+   im = (RGBA_Image *) evas_cache_image_request(evas_common_image_cache_get(), sim->cache_entry.file, sim->cache_entry.key, &sim->cache_entry.load_opts, &error);
+   sim->source = im;
+   if (!sim->source) return -1;
+
+   sim->cache_entry.w = sim->source->cache_entry.w;
+   sim->cache_entry.h = sim->source->cache_entry.h;
+   ie->flags.alpha = im->cache_entry.flags.alpha;
+   sim->cache_entry.info = im->cache_entry.info;
+   if (sim->stride < 0) sim->stride = _calc_stride(sim->cache_entry.w);
+
+   return 0;
+}
+
+static void
+_evas_common_soft16_image_unload(Image_Entry *ie __UNUSED__)
+{
+}
+
+static void
+_evas_common_soft16_image_dirty_region(Image_Entry *im __UNUSED__, unsigned int x __UNUSED__, unsigned int y __UNUSED__, unsigned int w __UNUSED__, unsigned int h __UNUSED__)
+{
+}
+
+static int
+_evas_common_soft16_image_dirty(Image_Entry *ie_dst, const Image_Entry *ie_src)
+{
+   Soft16_Image *dst = (Soft16_Image *) ie_dst;
+   Soft16_Image *src = (Soft16_Image *) ie_src;
+
+   evas_cache_image_load_data(&src->cache_entry);
+   evas_cache_image_surface_alloc(&dst->cache_entry,
+                                  src->cache_entry.w, src->cache_entry.h);
+
+/*    evas_common_blit_rectangle(src, dst, 0, 0, src->cache_entry.w, src->cache_entry.h, 0, 0); */
+
+   return 0;
+}
+
+static int
+_evas_common_soft16_image_ram_usage(Image_Entry *ie)
+{
+   Soft16_Image *im = (Soft16_Image *) ie;
+
+   if (im->pixels && im->flags.free_pixels)
+     return IMG_BYTE_SIZE(im->stride, im->cache_entry.h, ie->flags.alpha);
+   return 0;
+}
+
+static int
+_evas_common_soft16_image_size_set(Image_Entry *ie_dst, const Image_Entry *ie_im, unsigned int w __UNUSED__, unsigned int h __UNUSED__)
+{
+   Soft16_Image *dst = (Soft16_Image *) ie_dst;
+   Soft16_Image *im = (Soft16_Image *) ie_im;
+
+   dst->flags = im->flags;
+
+   return 0;
+}
+
+static int
+_evas_common_soft16_image_from_data(Image_Entry* ie_dst, unsigned int w, unsigned int h, DATA32 *image_data, int alpha, int cspace __UNUSED__)
+{
+   Soft16_Image *im = (Soft16_Image *) ie_dst;
+
+   /* FIXME: handle colorspace */
+   ie_dst->w = w;
+   ie_dst->h = h;
+   ie_dst->flags.alpha = alpha;
+
+   im->flags.free_pixels = 0;
+   im->flags.free_alpha = 0;
+   if (im->stride < 0)
+        im->stride = _calc_stride(w);
+
+   /* FIXME: That's bad, the application must be aware of the engine internal. */
+   im->pixels = (DATA16 *) image_data;
+   if (ie_dst->flags.alpha)
+     im->alpha = (DATA8 *)(im->pixels + (im->stride * h));
+
+   return 0;
+}
+
+static int
+_evas_common_soft16_image_from_copied_data(Image_Entry* ie_dst, unsigned int w __UNUSED__, unsigned int h, DATA32 *image_data, int alpha __UNUSED__, int cspace __UNUSED__)
+{
+   Soft16_Image *im = (Soft16_Image *) ie_dst;
+
+   /* FIXME: handle colorspace */
+   if (image_data)
+     memcpy(im->pixels, image_data, IMG_BYTE_SIZE(im->stride, h, ie_dst->flags.alpha));
+   else
+     memset(im->pixels, 0, IMG_BYTE_SIZE(im->stride, h, ie_dst->flags.alpha));
+
+   return 0;
+}
+
+static int
+_evas_common_soft16_image_colorspace_set(Image_Entry* ie_dst __UNUSED__, int cspace __UNUSED__)
+{
+   /* FIXME: handle colorspace */
+   return 0;
+}
+
+static int
+_evas_common_load_soft16_image_data_from_file(Image_Entry *ie)
+{
+   Soft16_Image *im = (Soft16_Image *) ie;
+
+   if (im->pixels) return 0;
+   if (!im->source) return -1;
+
+   evas_cache_image_load_data(&im->source->cache_entry);
+   if (im->source->image.data)
+     {
+        DATA32 *sp;
+
+        evas_cache_image_surface_alloc(&im->cache_entry,
+                                       im->source->cache_entry.w,
+                                       im->source->cache_entry.h);
+
+        sp = im->source->image.data;
+        if (im->alpha)
+          evas_common_soft16_image_convert_from_rgba(im, sp);
+        else
+          evas_common_soft16_image_convert_from_rgb(im, sp);
+     }
+   evas_cache_image_drop(&im->source->cache_entry);
+   im->cache_entry.info.module = NULL;
+   im->cache_entry.info.loader = NULL;
+   im->source = NULL;
+
+   return 0;
+}
+
+/* Soft16_Image * */
+/* evas_common_soft16_image_new(int w, int h, int stride, int have_alpha, DATA16 *pixels, */
+/*               int copy) */
+/* { */
+/*    Soft16_Image *im; */
+
+/*    if (stride < 0) stride = _calc_stride(w); */
+
+/*    im = evas_common_soft16_image_alloc(w, h, stride, have_alpha, copy); */
+/*    if (!im) return NULL; */
+
+/*    if (pixels) */
+/*      { */
+/*      if (copy) */
+/*        memcpy(im->pixels, pixels, IMG_BYTE_SIZE(stride, h, have_alpha)); */
+/*      else */
+/*        { */
+/*           im->pixels = pixels; */
+/*           if (have_alpha) im->alpha = (DATA8 *)(im->pixels + (stride * h)); */
+/*        } */
+/*      } */
+/*    return im; */
+/* } */
+
+static inline void
+_get_clip(const RGBA_Draw_Context *dc, const Soft16_Image *im,
+          Eina_Rectangle *clip)
+{
+   if (dc->clip.use)
+     {
+        EINA_RECTANGLE_SET(clip, dc->clip.x, dc->clip.y, dc->clip.w, dc->clip.h);
+        if (clip->x < 0)
+          {
+             clip->w += clip->x;
+             clip->x = 0;
+          }
+        if (clip->y < 0)
+          {
+             clip->h += clip->y;
+             clip->y = 0;
+          }
+        if ((clip->x + clip->w) > (int)im->cache_entry.w) clip->w = im->cache_entry.w - clip->x;
+        if ((clip->y + clip->h) > (int)im->cache_entry.h) clip->h = im->cache_entry.h - clip->y;
+     }
+   else
+     {
+        EINA_RECTANGLE_SET(clip, 0, 0, im->cache_entry.w, im->cache_entry.h);
+     }
+}
+
+static inline int
+_is_empty_rectangle(const Eina_Rectangle *r)
+{
+   return (r->w < 1) || (r->h < 1);
+}
+
+static inline void
+_shrink(int *s_pos, int *s_size, int pos, int size)
+{
+   int d;
+
+   d = (*s_pos) - pos;
+   if (d < 0)
+     {
+        (*s_size) += d;
+        (*s_pos) = pos;
+     }
+
+   d = size + pos - (*s_pos);
+   if ((*s_size) > d)
+     (*s_size) = d;
+}
+
+static int
+_soft16_adjust_areas(Eina_Rectangle *src,
+                     int src_max_x, int src_max_y,
+                     Eina_Rectangle *dst,
+                     int dst_max_x, int dst_max_y,
+                     Eina_Rectangle *dst_clip)
+{
+   if (_is_empty_rectangle(src) ||
+       _is_empty_rectangle(dst) ||
+       _is_empty_rectangle(dst_clip))
+     return 0;
+
+   /* shrink clip */
+   _shrink(&dst_clip->x, &dst_clip->w, dst->x, dst->w);
+   _shrink(&dst_clip->y, &dst_clip->h, dst->y, dst->h);
+   if (_is_empty_rectangle(dst_clip)) return 0;
+
+   /* sanitise x */
+   if (src->x < 0)
+     {
+        dst->x -= (src->x * dst->w) / src->w;
+        dst->w += (src->x * dst->w) / src->w;
+        src->w += src->x;
+        src->x = 0;
+     }
+   if (src->x >= src_max_x) return 0;
+   if ((src->x + src->w) > src_max_x)
+     {
+        dst->w = (dst->w * (src_max_x - src->x)) / (src->w);
+        src->w = src_max_x - src->x;
+     }
+   if (dst->w <= 0) return 0;
+   if (src->w <= 0) return 0;
+   if (dst_clip->x < 0)
+     {
+        dst_clip->w += dst_clip->x;
+        dst_clip->x = 0;
+     }
+   if (dst_clip->w <= 0) return 0;
+   if (dst_clip->x >= dst_max_x) return 0;
+
+   _shrink(&dst_clip->x, &dst_clip->w, 0, dst_max_x);
+   if (dst_clip->w <= 0) return 0;
+
+   /* sanitise y */
+   if (src->y < 0)
+     {
+        dst->y -= (src->y * dst->h) / src->h;
+        dst->h += (src->y * dst->h) / src->h;
+        src->h += src->y;
+        src->y = 0;
+     }
+   if (src->y >= src_max_y) return 0;
+   if ((src->y + src->h) > src_max_y)
+     {
+        dst->h = (dst->h * (src_max_y - src->y)) / (src->h);
+        src->h = src_max_y - src->y;
+     }
+   if (dst->h <= 0) return 0;
+   if (src->h <= 0) return 0;
+   if (dst_clip->y < 0)
+     {
+        dst_clip->h += dst_clip->y;
+        dst_clip->y = 0;
+     }
+   if (dst_clip->h <= 0) return 0;
+   if (dst_clip->y >= dst_max_y) return 0;
+
+   _shrink(&dst_clip->y, &dst_clip->h, 0, dst_max_y);
+   if (dst_clip->h <= 0) return 0;
+
+   return 1;
+}
+
+static void
+_soft16_image_draw_sampled_int(Soft16_Image *src, Soft16_Image *dst,
+                               RGBA_Draw_Context *dc,
+                               Eina_Rectangle sr, Eina_Rectangle dr)
+{
+   Eina_Rectangle cr;
+
+   if (!(RECTS_INTERSECT(dr.x, dr.y, dr.w, dr.h, 0, 0, dst->cache_entry.w, dst->cache_entry.h)))
+     return;
+   if (!(RECTS_INTERSECT(sr.x, sr.y, sr.w, sr.h, 0, 0, src->cache_entry.w, src->cache_entry.h)))
+     return;
+
+   _get_clip(dc, dst, &cr);
+   if (!_soft16_adjust_areas(&sr, src->cache_entry.w, src->cache_entry.h, &dr, dst->cache_entry.w, dst->cache_entry.h, &cr))
+     return;
+
+   if ((dr.w == sr.w) && (dr.h == sr.h))
+     evas_common_soft16_image_draw_unscaled(src, dst, dc, sr, dr, cr);
+   else
+     evas_common_soft16_image_draw_scaled_sampled(src, dst, dc, sr, dr, cr);
+}
+
+EAPI void
+evas_common_soft16_image_draw(Soft16_Image *src, Soft16_Image *dst,
+                  RGBA_Draw_Context *dc,
+                  int src_region_x, int src_region_y,
+                  int src_region_w, int src_region_h,
+                  int dst_region_x, int dst_region_y,
+                  int dst_region_w, int dst_region_h,
+                  int smooth __UNUSED__)
+{
+   Eina_Rectangle sr, dr;
+   Cutout_Rects *rects;
+   Cutout_Rect  *r;
+   struct RGBA_Draw_Context_clip clip_bkp;
+   int i;
+
+   /* handle cutouts here! */
+   EINA_RECTANGLE_SET(&dr, dst_region_x, dst_region_y, dst_region_w, dst_region_h);
+
+   if (_is_empty_rectangle(&dr)) return;
+   if (!(RECTS_INTERSECT(dr.x, dr.y, dr.w, dr.h, 0, 0, dst->cache_entry.w, dst->cache_entry.h)))
+     return;
+
+   EINA_RECTANGLE_SET(&sr, src_region_x, src_region_y, src_region_w, src_region_h);
+
+   if (_is_empty_rectangle(&sr)) return;
+   if (!(RECTS_INTERSECT(sr.x, sr.y, sr.w, sr.h, 0, 0, src->cache_entry.w, src->cache_entry.h)))
+     return;
+
+   /* no cutouts - cut right to the chase */
+   if (!dc->cutout.rects)
+     {
+        _soft16_image_draw_sampled_int(src, dst, dc, sr, dr);
+        return;
+     }
+
+   /* save out clip info */
+   clip_bkp = dc->clip;
+   evas_common_draw_context_clip_clip(dc, 0, 0, dst->cache_entry.w, dst->cache_entry.h);
+   evas_common_draw_context_clip_clip(dc, dst_region_x, dst_region_y, dst_region_w, dst_region_h);
+   /* our clip is 0 size.. abort */
+   if ((dc->clip.w <= 0) || (dc->clip.h <= 0))
+     {
+        dc->clip = clip_bkp;
+        return;
+     }
+   rects = evas_common_draw_context_apply_cutouts(dc);
+   for (i = 0; i < rects->active; i++)
+     {
+        r = rects->rects + i;
+        evas_common_draw_context_set_clip(dc, r->x, r->y, r->w, r->h);
+        _soft16_image_draw_sampled_int(src, dst, dc, sr, dr);
+     }
+   evas_common_draw_context_apply_clear_cutouts(rects);
+   dc->clip = clip_bkp;
+}
+
+EAPI Soft16_Image *
+evas_common_soft16_image_alpha_set(Soft16_Image *im, int have_alpha)
+{
+   Soft16_Image   *new_im;
+
+   if (im->cache_entry.flags.alpha == have_alpha) return im;
+
+   new_im = (Soft16_Image *) evas_cache_image_alone(&im->cache_entry);
+
+   new_im->cache_entry.flags.alpha = have_alpha;
+
+   if (im->cache_entry.w > 0
+       && im->cache_entry.h)
+     new_im = (Soft16_Image *) evas_cache_image_size_set(&new_im->cache_entry, im->cache_entry.w, im->cache_entry.h);
+
+   return new_im;
+}
+
+/* Soft16_Image * */
+/* evas_common_soft16_image_size_set(Soft16_Image *old_im, int w, int h) */
+/* { */
+/*    Soft16_Image *new_im; */
+/*    DATA16 *dp, *sp; */
+/*    int i, cw, ch, ew; */
+
+/*    if ((old_im->cache_entry.w == w) && (old_im->cache_entry.h == h)) return old_im; */
+
+/*    new_im = evas_common_soft16_image_new(w, h, -1, old_im->flags.have_alpha, NULL, 1); */
+
+/*    if (old_im->cache_entry.w < new_im->cache_entry.w) */
+/*      cw = old_im->cache_entry.w; */
+/*    else */
+/*      cw = new_im->cache_entry.w; */
+
+/*    ew = new_im->cache_entry.w - cw; */
+
+/*    if (old_im->cache_entry.h < new_im->cache_entry.h) */
+/*      ch = old_im->cache_entry.h; */
+/*    else */
+/*      ch = new_im->cache_entry.h; */
+
+/*    dp = new_im->pixels; */
+/*    sp = old_im->pixels; */
+/*    for (i = 0; i < ch; i++) */
+/*      { */
+/*      memcpy(dp, sp, cw * sizeof(DATA16)); */
+/*      if (ew > 0) memset(dp, 0, ew * sizeof(DATA16)); */
+
+/*      dp += new_im->stride; */
+/*      sp += old_im->stride; */
+/*      } */
+
+/*    if (old_im->flags.have_alpha) */
+/*      { */
+/*      DATA8 *dp, *sp; */
+
+/*      dp = new_im->alpha; */
+/*      sp = old_im->alpha; */
+/*      for (i = 0; i < ch; i++) */
+/*        { */
+/*           memcpy(dp, sp, cw * sizeof(DATA8)); */
+/*           if (ew > 0) memset(dp, 0, ew * sizeof(DATA8)); */
+
+/*           dp += new_im->stride; */
+/*           sp += old_im->stride; */
+/*        } */
+/*      } */
+
+/*    evas_cache_image_drop(&old_im->cache_entry); */
+/*    return new_im; */
+/* } */