forked from enlightenment/efl
ector_software_rasterizer: Support gradient mask blending
Summary: This patch supports mask blending of gradient shapes. Test Plan: N/A Reviewers: Hermet, kimcinoo Reviewed By: Hermet Subscribers: cedric, #reviewers, smohanty, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D8855
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@ -293,6 +293,120 @@ _blend_gradient(int count, const SW_FT_Span *spans, void *user_data)
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}
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}
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static void
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_blend_gradient_alpha(int count, const SW_FT_Span *spans, void *user_data)
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{
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RGBA_Comp_Func comp_func;
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Span_Data *data = (Span_Data *)(user_data);
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src_fetch fetchfunc = NULL;
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uint32_t *buffer;
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const int pix_stride = data->raster_buffer->stride / 4;
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uint32_t gradientbuffer[BLEND_GRADIENT_BUFFER_SIZE];
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// FIXME: Get the proper composition function using ,color, ECTOR_OP etc.
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if (data->type == LinearGradient) fetchfunc = &fetch_linear_gradient;
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if (data->type == RadialGradient) fetchfunc = &fetch_radial_gradient;
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if (!fetchfunc)
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return;
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Ector_Software_Buffer_Base_Data *mask = data->mask;
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uint32_t *mbuffer = mask->pixels.u32;
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//Temp buffer for intermediate processing
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uint32_t *tbuffer = malloc(sizeof(uint32_t) * data->raster_buffer->generic->w);
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comp_func = efl_draw_func_span_get(data->op, data->mul_col, data->gradient->alpha);
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// move to the offset location
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buffer = data->raster_buffer->pixels.u32 + ((pix_stride * data->offy) + data->offx);
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while (count--)
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{
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uint32_t *target = buffer + ((data->raster_buffer->generic->w * spans->y) + spans->x);
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uint32_t *mtarget = mbuffer + ((mask->generic->w * spans->y) + spans->x);
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uint32_t *temp = tbuffer;
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int length = spans->len;
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memset(temp, 0x00, sizeof(uint32_t) * spans->len);
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while (length)
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{
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int l = MIN(length, BLEND_GRADIENT_BUFFER_SIZE);
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fetchfunc(gradientbuffer, data, spans->y, spans->x, l);
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comp_func(temp, gradientbuffer, l, data->mul_col, spans->coverage);
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for (int i = 0; i < l; i++)
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{
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*temp = draw_mul_256(((*mtarget)>>24), *temp);
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int alpha = 255 - ((*temp) >> 24);
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*target = *temp + draw_mul_256(alpha, *target);
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++temp;
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++mtarget;
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++target;
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}
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length -= l;
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}
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++spans;
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}
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free(tbuffer);
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}
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static void
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_blend_gradient_alpha_inv(int count, const SW_FT_Span *spans, void *user_data)
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{
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RGBA_Comp_Func comp_func;
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Span_Data *data = (Span_Data *)(user_data);
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src_fetch fetchfunc = NULL;
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uint32_t *buffer;
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const int pix_stride = data->raster_buffer->stride / 4;
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uint32_t gradientbuffer[BLEND_GRADIENT_BUFFER_SIZE];
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// FIXME: Get the proper composition function using ,color, ECTOR_OP etc.
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if (data->type == LinearGradient) fetchfunc = &fetch_linear_gradient;
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if (data->type == RadialGradient) fetchfunc = &fetch_radial_gradient;
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if (!fetchfunc)
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return;
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Ector_Software_Buffer_Base_Data *mask = data->mask;
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uint32_t *mbuffer = mask->pixels.u32;
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//Temp buffer for intermediate processing
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uint32_t *tbuffer = malloc(sizeof(uint32_t) * data->raster_buffer->generic->w);
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comp_func = efl_draw_func_span_get(data->op, data->mul_col, data->gradient->alpha);
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// move to the offset location
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buffer = data->raster_buffer->pixels.u32 + ((pix_stride * data->offy) + data->offx);
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while (count--)
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{
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uint32_t *target = buffer + ((data->raster_buffer->generic->w * spans->y) + spans->x);
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uint32_t *mtarget = mbuffer + ((mask->generic->w * spans->y) + spans->x);
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uint32_t *temp = tbuffer;
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int length = spans->len;
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memset(temp, 0x00, sizeof(uint32_t) * spans->len);
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while (length)
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{
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int l = MIN(length, BLEND_GRADIENT_BUFFER_SIZE);
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fetchfunc(gradientbuffer, data, spans->y, spans->x, l);
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comp_func(temp, gradientbuffer, l, data->mul_col, spans->coverage);
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for (int i = 0; i < l; i++)
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{
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if (*mtarget)
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*temp = draw_mul_256((255 - ((*mtarget)>>24)), *temp);
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int alpha = 255 - ((*temp) >> 24);
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*target = *temp + draw_mul_256(alpha, *target);
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++temp;
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++mtarget;
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++target;
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}
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length -= l;
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}
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++spans;
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}
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free(tbuffer);
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}
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/*!
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\internal
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spans must be sorted on y
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@ -485,46 +599,49 @@ static void
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_adjust_span_fill_methods(Span_Data *spdata)
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{
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//Blending Function
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switch(spdata->type)
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if (spdata->mask)
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{
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case None:
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spdata->unclipped_blend = NULL;
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break;
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case Solid:
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switch (spdata->mask_op)
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{
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if (spdata->mask)
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{
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switch (spdata->mask_op)
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{
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default:
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_ALPHA:
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spdata->unclipped_blend = &_blend_alpha;
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break;
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_ALPHA_INV:
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spdata->unclipped_blend = &_blend_alpha_inv;
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break;
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_ADD:
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spdata->unclipped_blend = &_blend_mask_add;
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break;
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_SUBSTRACT:
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spdata->unclipped_blend = &_blend_mask_sub;
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break;
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_INTERSECT:
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spdata->unclipped_blend = &_blend_mask_ins;
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break;
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_DIFFERENCE:
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spdata->unclipped_blend = &_blend_mask_diff;
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break;
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}
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}
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else
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spdata->unclipped_blend = &_blend_argb;
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}
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break;
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case LinearGradient:
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case RadialGradient:
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default:
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_ALPHA:
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if (spdata->type == Solid)
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spdata->unclipped_blend = &_blend_alpha;
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else if (spdata->type == LinearGradient || spdata->type == RadialGradient)
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spdata->unclipped_blend = &_blend_gradient_alpha;
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else //None
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spdata->unclipped_blend = NULL;
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break;
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_ALPHA_INV:
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if (spdata->type == Solid)
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spdata->unclipped_blend = &_blend_alpha_inv;
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else if (spdata->type == LinearGradient || spdata->type == RadialGradient)
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spdata->unclipped_blend = &_blend_gradient_alpha_inv;
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else //None
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spdata->unclipped_blend = NULL;
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break;
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_ADD:
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spdata->unclipped_blend = &_blend_mask_add;
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break;
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_SUBSTRACT:
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spdata->unclipped_blend = &_blend_mask_sub;
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break;
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_INTERSECT:
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spdata->unclipped_blend = &_blend_mask_ins;
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break;
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case EFL_CANVAS_VG_NODE_BLEND_TYPE_MASK_DIFFERENCE:
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spdata->unclipped_blend = &_blend_mask_diff;
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break;
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}
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}
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else
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{
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if (spdata->type == Solid)
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spdata->unclipped_blend = &_blend_argb;
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else if (spdata->type == LinearGradient || spdata->type == RadialGradient)
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spdata->unclipped_blend = &_blend_gradient;
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break;
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else //None
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spdata->unclipped_blend = NULL;
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}
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//FIXME: Mask and mask case is not use clipping.
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