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efl/src/lib/ector/software/ector_software_rasterizer.c

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#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <Eina.h>
#include <Ector.h>
#include <software/Ector_Software.h>
#include "ector_private.h"
#include "ector_software_private.h"
#include "draw.h"
static void
_blend_argb(int count, const SW_FT_Span *spans, void *user_data)
{
Span_Data *sd = user_data;
uint32_t color, *buffer, *target;
const int pix_stride = sd->raster_buffer->stride / 4;
// multiply the color with mul_col if any
color = DRAW_MUL4_SYM(sd->color, sd->mul_col);
RGBA_Comp_Func_Solid comp_func = efl_draw_func_solid_span_get(sd->op, color);
// move to the offset location
buffer = sd->raster_buffer->pixels.u32 + ((pix_stride * sd->offy) + sd->offx);
while (count--)
{
target = buffer + ((pix_stride * spans->y) + spans->x);
comp_func(target, spans->len, color, spans->coverage);
++spans;
}
}
static void
_comp_matte_alpha(int count, const SW_FT_Span *spans, void *user_data)
{
Span_Data *sd = user_data;
const int pix_stride = sd->raster_buffer->stride / 4;
Ector_Software_Buffer_Base_Data *comp = sd->comp;
if (!comp || !comp->pixels.u32) return;
const int comp_stride = comp->stride / 4;
// multiply the color with mul_col if any
uint32_t color = DRAW_MUL4_SYM(sd->color, sd->mul_col);
RGBA_Comp_Func_Solid comp_func = efl_draw_func_solid_span_get(sd->op, color);
// move to the offset location
uint32_t *buffer =
sd->raster_buffer->pixels.u32 + ((pix_stride * sd->offy) + sd->offx);
uint32_t *mbuffer = comp->pixels.u32;
//Temp buffer for intermediate processing
int tsize = sd->raster_buffer->generic->w;
uint32_t *tbuffer = alloca(sizeof(uint32_t) * tsize);
while (count--)
{
uint32_t *target = buffer + ((pix_stride * spans->y) + spans->x);
uint32_t *mtarget =
mbuffer + ((comp_stride * spans->y) + spans->x);
uint32_t *temp = tbuffer;
memset(temp, 0x00, sizeof(uint32_t) * spans->len);
comp_func(temp, spans->len, color, spans->coverage);
//composite
for (int i = 0; i < spans->len; i++)
{
*temp = draw_mul_256(((*mtarget)>>24), *temp);
int alpha = 255 - ((*temp) >> 24);
*target = *temp + draw_mul_256(alpha, *target);
++temp;
++mtarget;
++target;
}
++spans;
}
}
static void
_comp_matte_alpha_inv(int count, const SW_FT_Span *spans, void *user_data)
{
Span_Data *sd = user_data;
const int pix_stride = sd->raster_buffer->stride / 4;
Ector_Software_Buffer_Base_Data *comp = sd->comp;
if (!comp || !comp->pixels.u32) return;
const int comp_stride = comp->stride / 4;
// multiply the color with mul_col if any
uint32_t color = DRAW_MUL4_SYM(sd->color, sd->mul_col);
RGBA_Comp_Func_Solid comp_func = efl_draw_func_solid_span_get(sd->op, color);
// move to the offset location
uint32_t *buffer =
sd->raster_buffer->pixels.u32 + ((pix_stride * sd->offy) + sd->offx);
uint32_t *mbuffer = comp->pixels.u32;
//Temp buffer for intermediate processing
int tsize = sd->raster_buffer->generic->w;
uint32_t *tbuffer = alloca(sizeof(uint32_t) * tsize);
while (count--)
{
uint32_t *target = buffer + ((pix_stride * spans->y) + spans->x);
uint32_t *mtarget =
mbuffer + ((comp_stride * spans->y) + spans->x);
uint32_t *temp = tbuffer;
memset(temp, 0x00, sizeof(uint32_t) * spans->len);
comp_func(temp, spans->len, color, spans->coverage);
//composite
for (int i = 0; i < spans->len; i++)
{
if (*mtarget)
*temp = draw_mul_256((255 - ((*mtarget)>>24)), *temp);
int alpha = 255 - ((*temp) >> 24);
*target = *temp + draw_mul_256(alpha, *target);
++temp;
++mtarget;
++target;
}
++spans;
}
}
static void
_comp_mask_add(int count, const SW_FT_Span *spans, void *user_data)
{
Span_Data *sd = user_data;
Ector_Software_Buffer_Base_Data *comp = sd->comp;
if (!comp || !comp->pixels.u32) return;
const int comp_stride = comp->stride / 4;
uint32_t color = DRAW_MUL4_SYM(sd->color, sd->mul_col);
RGBA_Comp_Func_Solid comp_func = efl_draw_func_solid_span_get(sd->op, color);
uint32_t *mbuffer = comp->pixels.u32;
int tsize = sd->raster_buffer->generic->w;
uint32_t *ttarget = alloca(sizeof(uint32_t) * tsize);
while (count--)
{
uint32_t *mtarget = mbuffer + ((comp_stride * spans->y) + spans->x);
memset(ttarget, 0x00, sizeof(uint32_t) * spans->len);
comp_func(ttarget, spans->len, color, spans->coverage);
for (int i = 0; i < spans->len; i++)
mtarget[i] = draw_mul_256(0xFF - (ttarget[i]>>24), mtarget[i]) + ttarget[i];
++spans;
}
}
static void
_comp_mask_sub(int count, const SW_FT_Span *spans, void *user_data)
{
Span_Data *sd = user_data;
Ector_Software_Buffer_Base_Data *comp = sd->comp;
if (!comp || !comp->pixels.u32) return;
const int comp_stride = comp->stride / 4;
uint32_t color = DRAW_MUL4_SYM(sd->color, sd->mul_col);
RGBA_Comp_Func_Solid comp_func = efl_draw_func_solid_span_get(sd->op, color);
uint32_t *mbuffer = comp->pixels.u32;
int tsize = sd->raster_buffer->generic->w;
uint32_t *ttarget = alloca(sizeof(uint32_t) * tsize);
while (count--)
{
uint32_t *mtarget = mbuffer + ((comp_stride * spans->y) + spans->x);
memset(ttarget, 0x00, sizeof(uint32_t) * spans->len);
comp_func(ttarget, spans->len, color, spans->coverage);
for (int i = 0; i < spans->len; i++)
mtarget[i] = draw_mul_256(0xFF - (ttarget[i]>>24), mtarget[i]);
++spans;
}
}
static void
_comp_mask_ins(int count, const SW_FT_Span *spans, void *user_data)
{
Span_Data *sd = user_data;
Ector_Software_Buffer_Base_Data *comp = sd->comp;
if (!comp || !comp->pixels.u32) return;
const int comp_stride = comp->stride / 4;
uint32_t color = DRAW_MUL4_SYM(sd->color, sd->mul_col);
RGBA_Comp_Func_Solid comp_func = efl_draw_func_solid_span_get(sd->op, color);
uint32_t *mbuffer = comp->pixels.u32;
int tsize = sd->raster_buffer->generic->w;
uint32_t *ttarget = alloca(sizeof(uint32_t) * tsize);
for(unsigned int y = 0; y < comp->generic->h; y++)
{
for(unsigned int x = 0; x < comp->generic->w; x++)
{
if (x == (unsigned int)spans->x && x + spans->len <= comp->generic->w &&
y == (unsigned int)spans->y && count > 0)
{
memset(ttarget, 0x00, sizeof(uint32_t) * spans->len);
uint32_t *mtarget = mbuffer + ((comp_stride * spans->y) + spans->x);
comp_func(ttarget, spans->len, color, spans->coverage);
for (int c = 0; c < spans->len; c++)
mtarget[c] = draw_mul_256(ttarget[c]>>24, mtarget[c]);
x += spans->len - 1;
++spans;
--count;
}
else
{
mbuffer[x + (comp_stride * y)] = (0x00FFFFFF & mbuffer[x + (comp_stride * y)]);
}
}
}
}
static void
_comp_mask_diff(int count, const SW_FT_Span *spans, void *user_data)
{
Span_Data *sd = user_data;
Ector_Software_Buffer_Base_Data *comp = sd->comp;
if (!comp || !comp->pixels.u32) return;
const int comp_stride = comp->stride / 4;
uint32_t color = DRAW_MUL4_SYM(sd->color, sd->mul_col);
RGBA_Comp_Func_Solid comp_func = efl_draw_func_solid_span_get(sd->op, color);
uint32_t *mbuffer = comp->pixels.u32;
int tsize = sd->raster_buffer->generic->w;
uint32_t *ttarget = alloca(sizeof(uint32_t) * tsize);
while (count--)
{
memset(ttarget, 0x00, sizeof(uint32_t) * spans->len);
uint32_t *mtarget = mbuffer + ((comp_stride * spans->y) + spans->x);
comp_func(ttarget, spans->len, color, spans->coverage);
for (int i = 0; i < spans->len; i++)
mtarget[i] = draw_mul_256(0xFF - (mtarget[i]>>24), ttarget[i]) + draw_mul_256(0xFF - (ttarget[i]>>24), mtarget[i]);
++spans;
}
}
#define BLEND_GRADIENT_BUFFER_SIZE 2048
typedef void (*src_fetch) (unsigned int *buffer, Span_Data *data, int y, int x, int length);
static void
_blend_gradient(int count, const SW_FT_Span *spans, void *user_data)
{
RGBA_Comp_Func comp_func;
Span_Data *sd = (Span_Data *)(user_data);
src_fetch fetchfunc = NULL;
unsigned int buffer[BLEND_GRADIENT_BUFFER_SIZE], *target, *destbuffer;
int length, l;
const int pix_stride = sd->raster_buffer->stride / 4;
// FIXME: Get the proper composition function using ,color, ECTOR_OP etc.
if (sd->type == LinearGradient) fetchfunc = &fetch_linear_gradient;
if (sd->type == RadialGradient) fetchfunc = &fetch_radial_gradient;
if (!fetchfunc || !sd->raster_buffer->pixels.u32) return;
comp_func = efl_draw_func_span_get(sd->op, sd->mul_col, sd->gradient->alpha);
// move to the offset location
destbuffer = sd->raster_buffer->pixels.u32 + ((pix_stride * sd->offy) + sd->offx);
while (count--)
{
target = destbuffer + ((pix_stride * spans->y) + spans->x);
length = spans->len;
while (length)
{
l = MIN(length, BLEND_GRADIENT_BUFFER_SIZE);
//FIXME: span->x must have adding an offset as much as subtracted length...
fetchfunc(buffer, sd, spans->y, spans->x, l);
comp_func(target, buffer, l, sd->mul_col, spans->coverage);
target += l;
length -= l;
}
++spans;
}
}
static void
_blend_gradient_alpha(int count, const SW_FT_Span *spans, void *user_data)
{
Span_Data *sd = (Span_Data *)(user_data);
src_fetch fetchfunc = NULL;
uint32_t *buffer;
const int pix_stride = sd->raster_buffer->stride / 4;
uint32_t gbuffer[BLEND_GRADIENT_BUFFER_SIZE]; //gradient buffer
// FIXME: Get the proper composition function using ,color, ECTOR_OP etc.
if (sd->type == LinearGradient) fetchfunc = &fetch_linear_gradient;
if (sd->type == RadialGradient) fetchfunc = &fetch_radial_gradient;
if (!fetchfunc) return;
Ector_Software_Buffer_Base_Data *comp = sd->comp;
uint32_t *mbuffer = comp->pixels.u32;
const int comp_stride = comp->stride / 4;
// move to the offset location
buffer = sd->raster_buffer->pixels.u32 + ((pix_stride * sd->offy) + sd->offx);
while (count--)
{
uint32_t *target = buffer + ((pix_stride * spans->y) + spans->x);
uint32_t *mtarget = mbuffer + ((comp_stride * spans->y) + spans->x);
int length = spans->len;
while (length)
{
int l = MIN(length, BLEND_GRADIENT_BUFFER_SIZE);
//FIXME: span->x must have adding an offset as much as subtracted length...
fetchfunc(gbuffer, sd, spans->y, spans->x, l);
uint32_t *temp = gbuffer;
for (int i = 0; i < l; i++)
{
*temp = draw_mul_256(((*mtarget)>>24), *temp);
int alpha = 255 - ((*temp) >> 24);
*target = *temp + draw_mul_256(alpha, *target);
++temp;
++mtarget;
++target;
}
length -= l;
}
++spans;
}
}
static void
_blend_gradient_alpha_inv(int count, const SW_FT_Span *spans, void *user_data)
{
Span_Data *sd = (Span_Data *)(user_data);
src_fetch fetchfunc = NULL;
uint32_t *buffer;
const int pix_stride = sd->raster_buffer->stride / 4;
uint32_t gbuffer[BLEND_GRADIENT_BUFFER_SIZE]; //gradient buffer
// FIXME: Get the proper composition function using ,color, ECTOR_OP etc.
if (sd->type == LinearGradient) fetchfunc = &fetch_linear_gradient;
if (sd->type == RadialGradient) fetchfunc = &fetch_radial_gradient;
if (!fetchfunc) return;
Ector_Software_Buffer_Base_Data *comp = sd->comp;
uint32_t *mbuffer = comp->pixels.u32;
const int comp_stride = comp->stride / 4;
// move to the offset location
buffer = sd->raster_buffer->pixels.u32 + ((pix_stride * sd->offy) + sd->offx);
while (count--)
{
uint32_t *target = buffer + ((pix_stride * spans->y) + spans->x);
uint32_t *mtarget = mbuffer + ((comp_stride * spans->y) + spans->x);
int length = spans->len;
while (length)
{
int l = MIN(length, BLEND_GRADIENT_BUFFER_SIZE);
//FIXME: span->x must have adding an offset as much as subtracted length...
fetchfunc(gbuffer, sd, spans->y, spans->x, l);
uint32_t *temp = gbuffer;
for (int i = 0; i < l; i++)
{
if (*mtarget)
*temp = draw_mul_256((255 - ((*mtarget)>>24)), *temp);
int alpha = 255 - ((*temp) >> 24);
*target = *temp + draw_mul_256(alpha, *target);
++temp;
++mtarget;
++target;
}
length -= l;
}
++spans;
}
}
/*!
\internal
spans must be sorted on y
*/
static const
SW_FT_Span *_intersect_spans_rect(const Eina_Rectangle *clip,
const SW_FT_Span *spans,
const SW_FT_Span *end,
SW_FT_Span **out_spans,
int available)
{
SW_FT_Span *out = *out_spans;
short minx, miny, maxx, maxy;
minx = clip->x;
miny = clip->y;
maxx = minx + clip->w - 1;
maxy = miny + clip->h - 1;
while (available && spans < end )
{
if (spans->y > maxy)
{
spans = end;// update spans so that we can breakout
break;
}
if (spans->y < miny
|| spans->x > maxx
|| spans->x + spans->len <= minx)
{
++spans;
continue;
}
if (spans->x < minx)
{
out->len = MIN(spans->len - (minx - spans->x), maxx - minx + 1);
out->x = minx;
}
else
{
out->x = spans->x;
out->len = MIN(spans->len, (maxx - spans->x + 1));
}
if (out->len != 0)
{
out->y = spans->y;
out->coverage = spans->coverage;
++out;
}
++spans;
--available;
}
*out_spans = out;
return spans;
}
static inline int
_div_255(int x) { return (x + (x>>8) + 0x80) >> 8; }
static const
SW_FT_Span *_intersect_spans_region(const Shape_Rle_Data *clip,
int *currentClip,
const SW_FT_Span *spans,
const SW_FT_Span *end,
SW_FT_Span **out_spans,
int available)
{
SW_FT_Span *out = *out_spans;
int sx1, sx2, cx1, cx2, x, len;
const SW_FT_Span *clipSpans = clip->spans + *currentClip;
const SW_FT_Span *clipEnd = clip->spans + clip->size;
while (available && spans < end )
{
if (clipSpans >= clipEnd)
{
spans = end;
break;
}
if (clipSpans->y > spans->y)
{
++spans;
continue;
}
if (spans->y != clipSpans->y)
{
++clipSpans;
continue;
}
//assert(spans->y == clipSpans->y);
sx1 = spans->x;
sx2 = sx1 + spans->len;
cx1 = clipSpans->x;
cx2 = cx1 + clipSpans->len;
if (cx1 < sx1 && cx2 < sx1)
{
++clipSpans;
continue;
}
else if (sx1 < cx1 && sx2 < cx1)
{
++spans;
continue;
}
x = MAX(sx1, cx1);
len = MIN(sx2, cx2) - x;
if (len)
{
out->x = MAX(sx1, cx1);
out->len = MIN(sx2, cx2) - out->x;
out->y = spans->y;
out->coverage = _div_255(spans->coverage * clipSpans->coverage);
++out;
--available;
}
if (sx2 < cx2)
{
++spans;
}
else
{
++clipSpans;
}
}
*out_spans = out;
*currentClip = clipSpans - clip->spans;
return spans;
}
static void
_span_fill_clipRect(int span_count, const SW_FT_Span *spans, void *user_data)
{
const int NSPANS = 256;
int clip_count, i;
Span_Data *fill_data = (Span_Data *) user_data;
Clip_Data clip = fill_data->clip;
SW_FT_Span *clipped;
Eina_Rectangle *rect;
Eina_Rectangle tmp_rect;
SW_FT_Span *cspans = NULL;
Eina_Bool intersect = EINA_FALSE;
//Note: Uses same span_count sized heap memory in intersect mask case.
if (fill_data->comp_method == EFL_GFX_VG_COMPOSITE_METHOD_MASK_INTERSECT)
{
intersect = EINA_TRUE;
cspans = malloc(sizeof(SW_FT_Span) * (span_count));
if (!cspans)
{
ERR("OOM: Failed malloc()");
return ;
}
}
else
{
cspans = alloca(sizeof(SW_FT_Span) * (NSPANS));
}
clip_count = eina_array_count(clip.clips);
for (i = 0; i < clip_count; i++)
{
rect = (Eina_Rectangle *)eina_array_data_get(clip.clips, i);
// invert transform the offset
tmp_rect.x = rect->x - fill_data->offx;
tmp_rect.y = rect->y - fill_data->offy;
tmp_rect.w = rect->w;
tmp_rect.h = rect->h;
const SW_FT_Span *end = spans + span_count;
while (spans < end)
{
clipped = cspans;
spans = _intersect_spans_rect(&tmp_rect, spans, end, &clipped, intersect ? span_count : NSPANS);
if (clipped - cspans)
fill_data->unclipped_blend(clipped - cspans, cspans, fill_data);
}
}
if (intersect && cspans) free(cspans);
}
static void
_span_fill_clipPath(int span_count, const SW_FT_Span *spans, void *user_data)
{
const int NSPANS = 256;
int current_clip = 0;
Span_Data *fill_data = (Span_Data *) user_data;
Clip_Data clip = fill_data->clip;
SW_FT_Span *clipped;
SW_FT_Span *cspans = NULL;
Eina_Bool intersect = EINA_FALSE;
//Note: Uses same span_count sized heap memory in intersect mask case.
if (fill_data->comp_method == EFL_GFX_VG_COMPOSITE_METHOD_MASK_INTERSECT)
{
intersect = EINA_TRUE;
cspans = malloc(sizeof(SW_FT_Span) * (span_count));
if (!cspans)
{
ERR("OOM: Failed malloc()");
return ;
}
}
else
{
cspans = alloca(sizeof(SW_FT_Span) * (NSPANS));
}
// FIXME: Take clip path offset into account.
const SW_FT_Span *end = spans + span_count;
while (spans < end)
{
clipped = cspans;
spans = _intersect_spans_region(clip.path, &current_clip, spans, end, &clipped, intersect ? span_count : NSPANS);
if (clipped - cspans)
fill_data->unclipped_blend(clipped - cspans, cspans, fill_data);
}
if (intersect && cspans) free(cspans);
}
static void
_adjust_span_fill_methods(Span_Data *spdata)
{
//Blending Function
if (spdata->comp)
{
switch (spdata->comp_method)
{
default:
case EFL_GFX_VG_COMPOSITE_METHOD_MATTE_ALPHA:
if (spdata->type == Solid)
spdata->unclipped_blend = &_comp_matte_alpha;
else if (spdata->type == LinearGradient || spdata->type == RadialGradient)
spdata->unclipped_blend = &_blend_gradient_alpha;
else //None
spdata->unclipped_blend = NULL;
break;
case EFL_GFX_VG_COMPOSITE_METHOD_MATTE_ALPHA_INVERSE:
if (spdata->type == Solid)
spdata->unclipped_blend = &_comp_matte_alpha_inv;
else if (spdata->type == LinearGradient || spdata->type == RadialGradient)
spdata->unclipped_blend = &_blend_gradient_alpha_inv;
else //None
spdata->unclipped_blend = NULL;
break;
case EFL_GFX_VG_COMPOSITE_METHOD_MASK_ADD:
spdata->unclipped_blend = &_comp_mask_add;
break;
case EFL_GFX_VG_COMPOSITE_METHOD_MASK_SUBSTRACT:
spdata->unclipped_blend = &_comp_mask_sub;
break;
case EFL_GFX_VG_COMPOSITE_METHOD_MASK_INTERSECT:
spdata->unclipped_blend = &_comp_mask_ins;
break;
case EFL_GFX_VG_COMPOSITE_METHOD_MASK_DIFFERENCE:
spdata->unclipped_blend = &_comp_mask_diff;
break;
}
}
else
{
if (spdata->type == Solid)
spdata->unclipped_blend = &_blend_argb;
else if (spdata->type == LinearGradient || spdata->type == RadialGradient)
spdata->unclipped_blend = &_blend_gradient;
else //None
spdata->unclipped_blend = NULL;
}
// Clipping Function
if (spdata->clip.enabled)
{
if (spdata->clip.type == 0)
spdata->blend = &_span_fill_clipRect;
else
spdata->blend = &_span_fill_clipPath;
}
else
spdata->blend = spdata->unclipped_blend;
}
void ector_software_thread_init(Ector_Software_Thread *thread)
{
// initialize the rasterizer and stroker
sw_ft_grays_raster.raster_new(&thread->raster);
SW_FT_Stroker_New(&thread->stroker);
SW_FT_Stroker_Set(thread->stroker, 1 << 6,
SW_FT_STROKER_LINECAP_BUTT, SW_FT_STROKER_LINEJOIN_MITER_FIXED, 0x4<<16);
}
void ector_software_rasterizer_init(Software_Rasterizer *rasterizer)
{
//initialize the span data.
rasterizer->fill_data.clip.enabled = EINA_FALSE;
rasterizer->fill_data.unclipped_blend = 0;
rasterizer->fill_data.blend = 0;
efl_draw_init();
ector_software_gradient_init();
}
void ector_software_thread_shutdown(Ector_Software_Thread *thread)
{
sw_ft_grays_raster.raster_done(thread->raster);
SW_FT_Stroker_Done(thread->stroker);
}
void ector_software_rasterizer_stroke_set(Ector_Software_Thread *thread,
Software_Rasterizer *rasterizer EINA_UNUSED, double width,
Efl_Gfx_Cap cap_style, Efl_Gfx_Join join_style,
Eina_Matrix3 *m, double miterlimit)
{
SW_FT_Stroker_LineCap cap;
SW_FT_Stroker_LineJoin join;
int stroke_width;
double scale_factor = 1.0;
// convert to freetype co-ordinate
SW_FT_Fixed miter_limit = miterlimit * (1<<16);
if (m)
{
// get the minimum scale factor from matrix
scale_factor = m->xx < m->yy ? m->xx : m->yy;
}
width = width * scale_factor;
width = width/2.0; // as free type uses it as the radius of the
// pen not the diameter.
// convert to freetype co-ordinate
stroke_width = (int)(width * 64);
switch (cap_style)
{
case EFL_GFX_CAP_SQUARE:
cap = SW_FT_STROKER_LINECAP_SQUARE;
break;
case EFL_GFX_CAP_ROUND:
cap = SW_FT_STROKER_LINECAP_ROUND;
break;
default:
cap = SW_FT_STROKER_LINECAP_BUTT;
break;
}
switch (join_style)
{
case EFL_GFX_JOIN_BEVEL:
join = SW_FT_STROKER_LINEJOIN_BEVEL;
break;
case EFL_GFX_JOIN_ROUND:
join = SW_FT_STROKER_LINEJOIN_ROUND;
break;
default:
join = SW_FT_STROKER_LINEJOIN_MITER_FIXED;
break;
}
SW_FT_Stroker_Set(thread->stroker, stroke_width, cap, join, miter_limit);
}
static void
_rle_generation_cb( int count, const SW_FT_Span* spans,void *user)
{
Shape_Rle_Data *rle = (Shape_Rle_Data *) user;
int newsize = rle->size + count;
// allocate enough memory for new spans
// alloc is required to prevent free and reallocation
// when the rle needs to be regenerated because of attribute change.
if (rle->alloc < newsize)
{
rle->spans = (SW_FT_Span *) realloc(rle->spans, newsize * sizeof(SW_FT_Span));
rle->alloc = newsize;
}
// copy the new spans to the allocated memory
SW_FT_Span *lastspan = (rle->spans + rle->size);
memcpy(lastspan,spans, count * sizeof(SW_FT_Span));
// update the size
rle->size = newsize;
}
Shape_Rle_Data *
ector_software_rasterizer_generate_rle_data(Ector_Software_Thread *thread,
Software_Rasterizer *rasterizer EINA_UNUSED,
SW_FT_Outline *outline)
{
int i, rle_size;
int l = 0, t = 0, r = 0, b = 0;
Shape_Rle_Data *rle_data = (Shape_Rle_Data *) calloc(1, sizeof(Shape_Rle_Data));
SW_FT_Raster_Params params;
SW_FT_Span* span;
params.flags = SW_FT_RASTER_FLAG_DIRECT | SW_FT_RASTER_FLAG_AA ;
params.gray_spans = &_rle_generation_cb;
params.user = rle_data;
params.source = outline;
sw_ft_grays_raster.raster_render(thread->raster, &params);
// update RLE bounding box.
span = rle_data->spans;
rle_size = rle_data->size;
if (rle_size)
{
t = span[0].y;
b = span[rle_size-1].y;
for (i = 0; i < rle_size; i++)
{
if (span[i].x < l) l = span[i].x;
if (span[i].x + span[i].len > r) r = span[i].x + span[i].len;
}
rle_data->bbox.x = l;
rle_data->bbox.y = t;
rle_data->bbox.w = r - l;
rle_data->bbox.h = b - t + 1;
}
return rle_data;
}
Shape_Rle_Data *
ector_software_rasterizer_generate_stroke_rle_data(Ector_Software_Thread *thread,
Software_Rasterizer *rasterizer,
SW_FT_Outline *outline,
Eina_Bool closePath)
{
uint32_t points,contors;
Shape_Rle_Data *rle_data;
SW_FT_Outline strokeOutline = { 0, 0, NULL, NULL, NULL, 0 };
SW_FT_Stroker_ParseOutline(thread->stroker, outline, !closePath);
SW_FT_Stroker_GetCounts(thread->stroker,&points, &contors);
strokeOutline.points = (SW_FT_Vector *) calloc(points, sizeof(SW_FT_Vector));
strokeOutline.tags = (char *) calloc(points, sizeof(char));
strokeOutline.contours = (short *) calloc(contors, sizeof(short));
SW_FT_Stroker_Export(thread->stroker, &strokeOutline);
rle_data = ector_software_rasterizer_generate_rle_data(thread, rasterizer, &strokeOutline);
// cleanup the outline data.
free(strokeOutline.points);
free(strokeOutline.tags);
free(strokeOutline.contours);
return rle_data;
}
void
ector_software_rasterizer_destroy_rle_data(Shape_Rle_Data *rle)
{
if (rle)
{
if (rle->spans)
free(rle->spans);
free(rle);
}
}
static
void _setup_span_fill_matrix(Software_Rasterizer *rasterizer)
{
if (rasterizer->transform)
eina_matrix3_inverse(rasterizer->transform, &rasterizer->fill_data.inv);
else
eina_matrix3_identity(&rasterizer->fill_data.inv);
}
void
ector_software_rasterizer_transform_set(Software_Rasterizer *rasterizer, Eina_Matrix3 *t)
{
rasterizer->transform = t;
}
void
ector_software_rasterizer_clip_rect_set(Software_Rasterizer *rasterizer, Eina_Array *clips)
{
if (clips)
{
rasterizer->fill_data.clip.clips = clips;
rasterizer->fill_data.clip.type = 0;
rasterizer->fill_data.clip.enabled = EINA_TRUE;
}
else
{
rasterizer->fill_data.clip.clips = NULL;
rasterizer->fill_data.clip.type = 0;
rasterizer->fill_data.clip.enabled = EINA_FALSE;
}
}
void
ector_software_rasterizer_clip_shape_set(Software_Rasterizer *rasterizer, Shape_Rle_Data *clip)
{
if (clip)
{
rasterizer->fill_data.clip.path = clip;
rasterizer->fill_data.clip.type = 1;
rasterizer->fill_data.clip.enabled = EINA_TRUE;
}
else
{
rasterizer->fill_data.clip.path = NULL;
rasterizer->fill_data.clip.type = 0;
rasterizer->fill_data.clip.enabled = EINA_FALSE;
}
}
void
ector_software_rasterizer_color_set(Software_Rasterizer *rasterizer, int r, int g, int b, int a)
{
rasterizer->fill_data.color = DRAW_ARGB_JOIN(a, r, g, b);
rasterizer->fill_data.type = Solid;
}
void ector_software_rasterizer_linear_gradient_set(Software_Rasterizer *rasterizer,
Ector_Renderer_Software_Gradient_Data *linear)
{
rasterizer->fill_data.gradient = linear;
rasterizer->fill_data.type = LinearGradient;
}
void
ector_software_rasterizer_radial_gradient_set(Software_Rasterizer *rasterizer,
Ector_Renderer_Software_Gradient_Data *radial)
{
rasterizer->fill_data.gradient = radial;
rasterizer->fill_data.type = RadialGradient;
}
void
ector_software_rasterizer_draw_rle_data(Software_Rasterizer *rasterizer,
int x, int y, uint32_t mul_col,
Efl_Gfx_Render_Op op, Shape_Rle_Data* rle,
Ector_Buffer *comp,
Efl_Gfx_Vg_Composite_Method comp_method)
{
if (!rle) return;
if (!rasterizer->fill_data.raster_buffer->pixels.u32) return;
rasterizer->fill_data.offx = x;
rasterizer->fill_data.offy = y;
rasterizer->fill_data.mul_col = mul_col;
rasterizer->fill_data.op = op;
rasterizer->fill_data.comp =
comp ? efl_data_scope_get(comp, ECTOR_SOFTWARE_BUFFER_BASE_MIXIN) : NULL;
rasterizer->fill_data.comp_method = comp_method;
_setup_span_fill_matrix(rasterizer);
_adjust_span_fill_methods(&rasterizer->fill_data);
if (rasterizer->fill_data.blend)
rasterizer->fill_data.blend(rle->size, rle->spans, &rasterizer->fill_data);
}
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