rvandegrift
/
efl
forked from enlightenment/efl
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ector: move gradient generation api to draw library for reuse.

This commit is contained in:
subhransu mohanty 2017-10-26 11:12:42 +09:00 committed by Jean-Philippe Andre
parent 5f9c54a1b2
commit 76e75dc105
3 changed files with 62 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
src/lib/ector/software/ector_software_gradient.c
View File

@ -280,73 +280,14 @@ _linear_helper_sse3(uint32_t *buffer, int length, Ector_Renderer_Software_Gradie
#endif
static inline double
_ease_linear(double t)
{
return t;
}
static Eina_Bool
_generate_gradient_color_table(Efl_Gfx_Gradient_Stop *gradient_stops, int stop_count, uint32_t *color_table, int size)
{
int dist, idist, pos = 0, i;
Eina_Bool alpha = EINA_FALSE;
Efl_Gfx_Gradient_Stop *curr, *next;
uint32_t current_color, next_color;
double delta, t, incr, fpos;
assert(stop_count > 0);
curr = gradient_stops;
if (curr->a != 255) alpha = EINA_TRUE;
current_color = DRAW_ARGB_JOIN(curr->a, curr->r, curr->g, curr->b);
incr = 1.0 / (double)size;
fpos = 1.5 * incr;
color_table[pos++] = current_color;
while (fpos <= curr->offset)
{
color_table[pos] = color_table[pos - 1];
pos++;
fpos += incr;
}
for (i = 0; i < stop_count - 1; ++i)
{
curr = (gradient_stops + i);
next = (gradient_stops + i + 1);
delta = 1/(next->offset - curr->offset);
if (next->a != 255) alpha = EINA_TRUE;
next_color = DRAW_ARGB_JOIN(next->a, next->r, next->g, next->b);
while (fpos < next->offset && pos < size)
{
t = _ease_linear((fpos - curr->offset) * delta);
dist = (int)(256 * t);
idist = 256 - dist;
color_table[pos] = draw_interpolate_256(current_color, idist, next_color, dist);
++pos;
fpos += incr;
}
current_color = next_color;
}
for (;pos < size; ++pos)
color_table[pos] = current_color;
// Make sure the last color stop is represented at the end of the table
color_table[size-1] = current_color;
return alpha;
}
static void
_update_color_table(void *data, Ector_Software_Thread *t EINA_UNUSED)
{
Ector_Renderer_Software_Gradient_Data *gdata = data;
gdata->color_table = malloc(GRADIENT_STOPTABLE_SIZE * 4);
gdata->alpha = _generate_gradient_color_table(gdata->gd->colors, gdata->gd->colors_count,
gdata->color_table, GRADIENT_STOPTABLE_SIZE);
gdata->alpha = efl_draw_generate_gradient_color_table(gdata->gd->colors, gdata->gd->colors_count,
gdata->color_table, GRADIENT_STOPTABLE_SIZE);
}
static void

2
src/static_libs/draw/draw.h
View File

@ -29,6 +29,8 @@ Cspace_Convert_Func efl_draw_convert_func_get (Efl_Gfx_Colorspace origcs,
int efl_draw_argb_premul(uint32_t *data, unsigned int len);
void efl_draw_argb_unpremul(uint32_t *data, unsigned int len);
Eina_Bool efl_draw_generate_gradient_color_table(Efl_Gfx_Gradient_Stop *gradient_stops, int stop_count, uint32_t *color_table, int size);
/* common sw draw helpers */

58
src/static_libs/draw/draw_main.c
View File

@ -276,6 +276,64 @@ efl_draw_func_span_get(Efl_Gfx_Render_Op op, uint32_t color, Eina_Bool src_alpha
return func_for_mode[op];
}
static double
_ease_linear(double t)
{
return t;
}
Eina_Bool
efl_draw_generate_gradient_color_table(Efl_Gfx_Gradient_Stop *gradient_stops, int stop_count, uint32_t *color_table, int size)
{
int dist, idist, pos = 0, i;
Eina_Bool alpha = EINA_FALSE;
Efl_Gfx_Gradient_Stop *curr, *next;
uint32_t current_color, next_color;
double delta, t, incr, fpos;
curr = gradient_stops;
if (curr->a != 255) alpha = EINA_TRUE;
current_color = DRAW_ARGB_JOIN(curr->a, curr->r, curr->g, curr->b);
incr = 1.0 / (double)size;
fpos = 1.5 * incr;
color_table[pos++] = current_color;
while (fpos <= curr->offset)
{
color_table[pos] = color_table[pos - 1];
pos++;
fpos += incr;
}
for (i = 0; i < stop_count - 1; ++i)
{
curr = (gradient_stops + i);
next = (gradient_stops + i + 1);
delta = 1/(next->offset - curr->offset);
if (next->a != 255) alpha = EINA_TRUE;
next_color = DRAW_ARGB_JOIN(next->a, next->r, next->g, next->b);
while (fpos < next->offset && pos < size)
{
t = _ease_linear((fpos - curr->offset) * delta);
dist = (int)(256 * t);
idist = 256 - dist;
color_table[pos] = draw_interpolate_256(current_color, idist, next_color, dist);
++pos;
fpos += incr;
}
current_color = next_color;
}
for (;pos < size; ++pos)
color_table[pos] = current_color;
// Make sure the last color stop is represented at the end of the table
color_table[size-1] = current_color;
return alpha;
}
int
efl_draw_init(void)
{