fz_pixmap *
fz_render_stroked_glyph(fz_context *ctx, fz_font *font, int gid, const fz_matrix *trm, const fz_matrix *ctm, fz_stroke_state *stroke, fz_irect scissor)
{
if (font->ft_face)
{
if (stroke->dash_len > 0)
return NULL;
return fz_render_ft_stroked_glyph(ctx, font, gid, trm, ctm, stroke);
}
return fz_render_glyph(ctx, font, gid, trm, NULL, scissor);
}
fz_glyph *
fz_render_stroked_glyph(fz_context *ctx, fz_font *font, int gid, fz_matrix *trm, const fz_matrix *ctm, const fz_stroke_state *stroke, const fz_irect *scissor)
{
if (font->ft_face)
{
fz_matrix subpix_trm;
unsigned char qe, qf;
if (stroke->dash_len > 0)
return NULL;
(void)fz_subpixel_adjust(ctx, trm, &subpix_trm, &qe, &qf);
return fz_render_ft_stroked_glyph(ctx, font, gid, &subpix_trm, ctm, stroke);
}
return fz_render_glyph(ctx, font, gid, trm, NULL, scissor, 1);
}
static void
fz_draw_fill_text(void *user, fz_text *text, fz_matrix ctm,
fz_colorspace *colorspace, float *color, float alpha)
{
fz_draw_device *dev = user;
fz_colorspace *model = dev->dest->colorspace;
unsigned char colorbv[FZ_MAX_COLORS + 1];
float colorfv[FZ_MAX_COLORS];
fz_matrix tm, trm;
fz_pixmap *glyph;
int i, x, y, gid;
fz_convert_color(colorspace, color, model, colorfv);
for (i = 0; i < model->n; i++)
colorbv[i] = colorfv[i] * 255;
colorbv[i] = alpha * 255;
tm = text->trm;
for (i = 0; i < text->len; i++)
{
gid = text->items[i].gid;
if (gid < 0)
continue;
tm.e = text->items[i].x;
tm.f = text->items[i].y;
trm = fz_concat(tm, ctm);
x = floorf(trm.e);
y = floorf(trm.f);
trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX);
trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX);
glyph = fz_render_glyph(dev->cache, text->font, gid, trm);
if (glyph)
{
draw_glyph(colorbv, dev->dest, glyph, x, y, dev->scissor);
fz_drop_pixmap(glyph);
}
}
}
static void
fz_draw_clip_text(fz_context *ctx, void *user, fz_text *text, fz_matrix ctm, int accumulate)
{
fz_draw_device *dev = user;
fz_colorspace *model = dev->dest->colorspace;
fz_bbox bbox;
fz_pixmap *mask, *dest, *shape;
fz_matrix tm, trm;
fz_pixmap *glyph;
int i, x, y, gid;
/* If accumulate == 0 then this text object is guaranteed complete */
/* If accumulate == 1 then this text object is the first (or only) in a sequence */
/* If accumulate == 2 then this text object is a continuation */
if (dev->top == dev->stack_max)
fz_grow_stack(dev);
if (accumulate == 0)
{
/* make the mask the exact size needed */
bbox = fz_round_rect(fz_bound_text(text, ctm));
bbox = fz_intersect_bbox(bbox, dev->scissor);
}
else
{
/* be conservative about the size of the mask needed */
bbox = dev->scissor;
}
if (accumulate == 0 || accumulate == 1)
{
mask = fz_new_pixmap_with_rect(ctx, NULL, bbox);
fz_clear_pixmap(mask);
dest = fz_new_pixmap_with_rect(ctx, model, bbox);
/* FIXME: See note #1 */
fz_clear_pixmap(dest);
if (dev->shape)
{
shape = fz_new_pixmap_with_rect(ctx, NULL, bbox);
fz_clear_pixmap(shape);
}
else
shape = NULL;
dev->stack[dev->top].scissor = dev->scissor;
dev->stack[dev->top].mask = mask;
dev->stack[dev->top].dest = dev->dest;
dev->stack[dev->top].shape = dev->shape;
/* FIXME: See note #1 */
dev->stack[dev->top].blendmode = dev->blendmode | FZ_BLEND_ISOLATED;
dev->scissor = bbox;
dev->dest = dest;
dev->shape = shape;
#ifdef DUMP_GROUP_BLENDS
dump_spaces(dev->top, "Clip (text) begin\n");
#endif
dev->top++;
}
else
{
mask = dev->stack[dev->top-1].mask;
}
if (!fz_is_empty_rect(bbox))
{
tm = text->trm;
for (i = 0; i < text->len; i++)
{
gid = text->items[i].gid;
if (gid < 0)
continue;
tm.e = text->items[i].x;
tm.f = text->items[i].y;
trm = fz_concat(tm, ctm);
x = floorf(trm.e);
y = floorf(trm.f);
trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX);
trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX);
glyph = fz_render_glyph(ctx, dev->cache, text->font, gid, trm, model);
if (glyph)
{
draw_glyph(NULL, mask, glyph, x, y, bbox);
if (dev->shape)
draw_glyph(NULL, dev->shape, glyph, x, y, bbox);
fz_drop_pixmap(ctx, glyph);
}
}
}
}
static void
fz_draw_fill_text(fz_context *ctx, void *user, fz_text *text, fz_matrix ctm,
fz_colorspace *colorspace, float *color, float alpha)
{
fz_draw_device *dev = user;
fz_colorspace *model = dev->dest->colorspace;
unsigned char colorbv[FZ_MAX_COLORS + 1];
unsigned char shapebv;
float colorfv[FZ_MAX_COLORS];
fz_matrix tm, trm;
fz_pixmap *glyph;
int i, x, y, gid;
if (dev->blendmode & FZ_BLEND_KNOCKOUT)
fz_knockout_begin(ctx, dev);
fz_convert_color(ctx, colorspace, color, model, colorfv);
for (i = 0; i < model->n; i++)
colorbv[i] = colorfv[i] * 255;
colorbv[i] = alpha * 255;
shapebv = 255;
tm = text->trm;
for (i = 0; i < text->len; i++)
{
gid = text->items[i].gid;
if (gid < 0)
continue;
tm.e = text->items[i].x;
tm.f = text->items[i].y;
trm = fz_concat(tm, ctm);
x = floorf(trm.e);
y = floorf(trm.f);
trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX);
trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX);
glyph = fz_render_glyph(ctx, dev->cache, text->font, gid, trm, model);
if (glyph)
{
/* cf. http://code.google.com/p/sumatrapdf/issues/detail?id=1746 */
if (glyph->n > 1 && text->font->t3procs)
{
float light;
fz_convert_color(ctx, colorspace, color, fz_device_gray, &light);
if (light != 0)
{
fz_pixmap *gray = fz_new_pixmap_with_rect(ctx, fz_device_gray, fz_bound_pixmap(glyph));
fz_convert_pixmap(ctx, glyph, gray);
fz_drop_pixmap(ctx, glyph);
glyph = fz_alpha_from_gray(ctx, gray, 0);
fz_drop_pixmap(ctx, gray);
}
}
if (glyph->n == 1)
{
draw_glyph(colorbv, dev->dest, glyph, x, y, dev->scissor);
if (dev->shape)
draw_glyph(&shapebv, dev->shape, glyph, x, y, dev->scissor);
}
else
{
fz_matrix ctm = {glyph->w, 0.0, 0.0, -glyph->h, x + glyph->x, y + glyph->y + glyph->h};
fz_paint_image(dev->dest, dev->scissor, dev->shape, glyph, ctm, alpha * 255);
}
fz_drop_pixmap(ctx, glyph);
}
}
if (dev->blendmode & FZ_BLEND_KNOCKOUT)
fz_knockout_end(ctx, dev);
}
static void
fz_draw_clip_text(fz_device *devp, fz_text *text, fz_matrix ctm, int accumulate)
{
fz_draw_device *dev = devp->user;
fz_context *ctx = dev->ctx;
fz_bbox bbox;
fz_pixmap *mask, *dest, *shape;
fz_matrix tm, trm, trunc_trm;
fz_pixmap *glyph;
int i, x, y, gid;
fz_draw_state *state;
fz_colorspace *model;
/* If accumulate == 0 then this text object is guaranteed complete */
/* If accumulate == 1 then this text object is the first (or only) in a sequence */
/* If accumulate == 2 then this text object is a continuation */
state = push_stack(dev);
model = state->dest->colorspace;
if (accumulate == 0)
{
/* make the mask the exact size needed */
bbox = fz_bbox_covering_rect(fz_bound_text(dev->ctx, text, ctm));
bbox = fz_intersect_bbox(bbox, state->scissor);
}
else
{
/* be conservative about the size of the mask needed */
bbox = state->scissor;
}
if (accumulate == 0 || accumulate == 1)
{
mask = fz_new_pixmap_with_bbox(dev->ctx, NULL, bbox);
fz_clear_pixmap(dev->ctx, mask);
dest = fz_new_pixmap_with_bbox(dev->ctx, model, bbox);
fz_clear_pixmap(dev->ctx, dest);
if (state->shape)
{
shape = fz_new_pixmap_with_bbox(dev->ctx, NULL, bbox);
fz_clear_pixmap(dev->ctx, shape);
}
else
shape = NULL;
state[1].blendmode |= FZ_BLEND_ISOLATED;
state[1].scissor = bbox;
state[1].dest = dest;
state[1].mask = mask;
state[1].shape = shape;
#ifdef DUMP_GROUP_BLENDS
dump_spaces(dev->top-1, "Clip (text) begin\n");
#endif
}
else
{
mask = state->mask;
dev->top--;
}
if (!fz_is_empty_rect(bbox) && mask)
{
tm = text->trm;
for (i = 0; i < text->len; i++)
{
gid = text->items[i].gid;
if (gid < 0)
continue;
tm.e = text->items[i].x;
tm.f = text->items[i].y;
trm = fz_concat(tm, ctm);
x = floorf(trm.e);
y = floorf(trm.f);
trunc_trm = trm;
trunc_trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX);
trunc_trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX);
glyph = fz_render_glyph(dev->ctx, text->font, gid, trunc_trm, model, bbox);
if (glyph)
{
draw_glyph(NULL, mask, glyph, x, y, bbox);
if (state[1].shape)
draw_glyph(NULL, state[1].shape, glyph, x, y, bbox);
fz_drop_pixmap(dev->ctx, glyph);
}
else
{
fz_path *path = fz_outline_glyph(dev->ctx, text->font, gid, trm);
if (path)
{
fz_pixmap *old_dest;
float white = 1;
state = &dev->stack[dev->top];
old_dest = state[0].dest;
state[0].dest = state[0].mask;
state[0].mask = NULL;
fz_try(ctx)
{
fz_draw_fill_path(devp, path, 0, fz_identity, fz_device_gray, &white, 1);
}
fz_always(ctx)
{
state[0].mask = state[0].dest;
state[0].dest = old_dest;
fz_free_path(dev->ctx, path);
}
fz_catch(ctx)
{
fz_rethrow(ctx);
}
}
else
{
fz_warn(dev->ctx, "cannot render glyph for clipping");
}
}
}
static void
fz_draw_fill_text(fz_device *devp, fz_text *text, fz_matrix ctm,
fz_colorspace *colorspace, float *color, float alpha)
{
fz_draw_device *dev = devp->user;
unsigned char colorbv[FZ_MAX_COLORS + 1];
unsigned char shapebv;
float colorfv[FZ_MAX_COLORS];
fz_matrix tm, trm, trunc_trm;
fz_pixmap *glyph;
int i, x, y, gid;
fz_draw_state *state = &dev->stack[dev->top];
fz_colorspace *model = state->dest->colorspace;
fz_bbox scissor = state->scissor;
if (state->blendmode & FZ_BLEND_KNOCKOUT)
state = fz_knockout_begin(dev);
fz_convert_color(dev->ctx, model, colorfv, colorspace, color);
for (i = 0; i < model->n; i++)
colorbv[i] = colorfv[i] * 255;
colorbv[i] = alpha * 255;
shapebv = 255;
tm = text->trm;
for (i = 0; i < text->len; i++)
{
gid = text->items[i].gid;
if (gid < 0)
continue;
tm.e = text->items[i].x;
tm.f = text->items[i].y;
trm = fz_concat(tm, ctm);
x = floorf(trm.e);
y = floorf(trm.f);
trunc_trm = trm;
trunc_trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX);
trunc_trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX);
scissor.x0 -= x; scissor.x1 -= x;
scissor.y0 -= y; scissor.y1 -= y;
glyph = fz_render_glyph(dev->ctx, text->font, gid, trunc_trm, model, scissor);
if (glyph)
{
if (glyph->n == 1)
{
draw_glyph(colorbv, state->dest, glyph, x, y, state->scissor);
if (state->shape)
draw_glyph(&shapebv, state->shape, glyph, x, y, state->scissor);
}
else
{
fz_matrix ctm = {glyph->w, 0.0, 0.0, glyph->h, x + glyph->x, y + glyph->y};
fz_paint_image(state->dest, state->scissor, state->shape, glyph, ctm, alpha * 255);
}
fz_drop_pixmap(dev->ctx, glyph);
}
else
{
fz_path *path = fz_outline_glyph(dev->ctx, text->font, gid, trm);
if (path)
{
fz_draw_fill_path(devp, path, 0, fz_identity, colorspace, color, alpha);
fz_free_path(dev->ctx, path);
}
else
{
fz_warn(dev->ctx, "cannot render glyph");
}
}
}
if (state->blendmode & FZ_BLEND_KNOCKOUT)
fz_knockout_end(dev);
}
static void
fz_draw_clip_text(void *user, fz_text *text, fz_matrix ctm, int accumulate)
{
fz_draw_device *dev = user;
fz_colorspace *model = dev->dest->colorspace;
fz_bbox bbox;
fz_pixmap *mask, *dest;
fz_matrix tm, trm;
fz_pixmap *glyph;
int i, x, y, gid;
/* If accumulate == 0 then this text object is guaranteed complete */
/* If accumulate == 1 then this text object is the first (or only) in a sequence */
/* If accumulate == 2 then this text object is a continuation */
if (dev->top == STACK_SIZE)
{
fz_warn("assert: too many buffers on stack");
return;
}
if (accumulate == 0)
{
/* make the mask the exact size needed */
bbox = fz_round_rect(fz_bound_text(text, ctm));
bbox = fz_intersect_bbox(bbox, dev->scissor);
}
else
{
/* be conservative about the size of the mask needed */
bbox = dev->scissor;
}
if (accumulate == 0 || accumulate == 1)
{
mask = fz_new_pixmap_with_rect(NULL, bbox);
dest = fz_new_pixmap_with_rect(model, bbox);
fz_clear_pixmap(mask);
fz_clear_pixmap(dest);
dev->stack[dev->top].scissor = dev->scissor;
dev->stack[dev->top].mask = mask;
dev->stack[dev->top].dest = dev->dest;
dev->scissor = bbox;
dev->dest = dest;
dev->top++;
}
else
{
mask = dev->stack[dev->top-1].mask;
}
if (!fz_is_empty_rect(bbox))
{
tm = text->trm;
for (i = 0; i < text->len; i++)
{
gid = text->items[i].gid;
if (gid < 0)
continue;
tm.e = text->items[i].x;
tm.f = text->items[i].y;
trm = fz_concat(tm, ctm);
x = floorf(trm.e);
y = floorf(trm.f);
trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX);
trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX);
glyph = fz_render_glyph(dev->cache, text->font, gid, trm);
if (glyph)
{
draw_glyph(NULL, mask, glyph, x, y, bbox);
fz_drop_pixmap(glyph);
}
}
}
}