static cairo_int_status_t
_cairo_gl_msaa_compositor_fill (const cairo_compositor_t *compositor,
cairo_composite_rectangles_t *composite,
const cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias)
{
cairo_gl_composite_t setup;
cairo_gl_surface_t *dst = (cairo_gl_surface_t *) composite->surface;
cairo_gl_context_t *ctx = NULL;
cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS;
cairo_traps_t traps;
cairo_bool_t use_color_attr = FALSE;
if (! can_use_msaa_compositor (dst, antialias))
return CAIRO_INT_STATUS_UNSUPPORTED;
if (composite->is_bounded == FALSE) {
cairo_surface_t* surface = _prepare_unbounded_surface (dst);
if (unlikely (surface == NULL))
return CAIRO_INT_STATUS_UNSUPPORTED;
status = _cairo_compositor_fill (compositor, surface,
CAIRO_OPERATOR_SOURCE,
&composite->source_pattern.base,
path, fill_rule, tolerance,
antialias, NULL);
if (unlikely (status)) {
cairo_surface_destroy (surface);
return status;
}
return _paint_back_unbounded_surface (compositor, composite, surface);
}
if (_cairo_path_fixed_fill_is_rectilinear (path) &&
composite->clip != NULL &&
composite->clip->num_boxes == 1 &&
composite->clip->path == NULL) {
cairo_clip_t *clip = _cairo_clip_copy (composite->clip);
clip = _cairo_clip_intersect_rectilinear_path (clip,
path,
fill_rule,
antialias);
if (clip->num_boxes)
status = _cairo_gl_msaa_compositor_fill_rectilinear (compositor,
composite,
path,
fill_rule,
tolerance,
antialias,
clip);
_cairo_clip_destroy (clip);
return status;
}
status = _cairo_gl_composite_init (&setup,
composite->op,
dst,
FALSE /* assume_component_alpha */);
if (unlikely (status)) {
_cairo_gl_composite_fini (&setup);
return status;
}
_cairo_traps_init (&traps);
if (_cairo_path_fixed_fill_is_rectilinear (path)) {
status = _cairo_path_fixed_fill_rectilinear_to_traps (path,
fill_rule,
antialias,
&traps);
use_color_attr = TRUE;
} else
status = _cairo_path_fixed_fill_to_traps (path, fill_rule,
tolerance, &traps);
if (unlikely (status))
goto cleanup_traps;
status = _cairo_gl_composite_set_source (&setup,
composite->original_source_pattern,
&composite->source_sample_area,
&composite->bounded,
use_color_attr);
if (unlikely (status))
goto cleanup_setup;
_cairo_gl_msaa_compositor_set_clip (composite, &setup);
status = _cairo_gl_composite_begin_multisample (&setup, &ctx,
antialias != CAIRO_ANTIALIAS_NONE);
if (unlikely (status))
goto cleanup_setup;
status = _draw_traps (ctx, &setup, &traps);
if (unlikely (status))
goto cleanup_setup;
cleanup_setup:
_cairo_gl_composite_fini (&setup);
if (ctx)
status = _cairo_gl_context_release (ctx, status);
cleanup_traps:
_cairo_traps_fini (&traps);
return status;
}
static cairo_int_status_t
_cairo_gl_msaa_compositor_stroke (const cairo_compositor_t *compositor,
cairo_composite_rectangles_t *composite,
const cairo_path_fixed_t *path,
const cairo_stroke_style_t *style,
const cairo_matrix_t *ctm,
const cairo_matrix_t *ctm_inverse,
double tolerance,
cairo_antialias_t antialias)
{
cairo_int_status_t status;
cairo_gl_surface_t *dst = (cairo_gl_surface_t *) composite->surface;
struct _tristrip_composite_info info;
cairo_bool_t use_color_attribute;
if (! can_use_msaa_compositor (dst, antialias))
return CAIRO_INT_STATUS_UNSUPPORTED;
if (composite->is_bounded == FALSE) {
cairo_surface_t* surface = _prepare_unbounded_surface (dst);
if (unlikely (surface == NULL))
return CAIRO_INT_STATUS_UNSUPPORTED;
status = _cairo_compositor_stroke (compositor, surface,
CAIRO_OPERATOR_SOURCE,
&composite->source_pattern.base,
path, style, ctm, ctm_inverse,
tolerance, antialias, NULL);
if (unlikely (status)) {
cairo_surface_destroy (surface);
return status;
}
return _paint_back_unbounded_surface (compositor, composite, surface);
}
status = _cairo_gl_composite_init (&info.setup,
composite->op,
dst,
FALSE /* assume_component_alpha */);
if (unlikely (status))
return status;
info.ctx = NULL;
use_color_attribute = _cairo_path_fixed_stroke_is_rectilinear (path) ||
_cairo_gl_hairline_style_is_hairline (style, ctm);
status = _cairo_gl_composite_set_source (&info.setup,
composite->original_source_pattern,
&composite->source_sample_area,
&composite->bounded,
use_color_attribute);
if (unlikely (status))
goto finish;
_cairo_gl_msaa_compositor_set_clip (composite, &info.setup);
status = _cairo_gl_composite_begin_multisample (&info.setup, &info.ctx,
antialias != CAIRO_ANTIALIAS_NONE);
if (unlikely (status))
goto finish;
if (_cairo_gl_hairline_style_is_hairline (style, ctm)) {
cairo_gl_hairline_closure_t closure;
if (! (_is_continuous_arc (path, style) ||
_is_continuous_single_line (path, style))) {
status = _prevent_overlapping_drawing (info.ctx, &info.setup,
composite, path,
style, ctm);
if (unlikely (status))
goto finish;
}
closure.ctx = info.ctx;
closure.tolerance = tolerance;
status = _cairo_gl_path_fixed_stroke_to_hairline (path, &closure,
style, ctm,
ctm_inverse,
_cairo_gl_hairline_move_to,
style->dash ?
_cairo_gl_hairline_line_to_dashed :
_cairo_gl_hairline_line_to,
_cairo_gl_hairline_curve_to,
_cairo_gl_hairline_close_path);
goto finish;
}
if (use_color_attribute) {
cairo_traps_t traps;
_cairo_traps_init (&traps);
status = _cairo_path_fixed_stroke_to_traps (path, style,
ctm, ctm_inverse,
tolerance, &traps);
if (unlikely (status)) {
_cairo_traps_fini (&traps);
goto finish;
}
status = _draw_traps (info.ctx, &info.setup, &traps);
_cairo_traps_fini (&traps);
} else {
if (!_is_continuous_single_line (path, style)) {
status = _prevent_overlapping_drawing (info.ctx, &info.setup,
composite, path,
style, ctm);
if (unlikely (status))
goto finish;
}
status =
_cairo_path_fixed_stroke_to_shaper ((cairo_path_fixed_t *) path,
style,
ctm,
ctm_inverse,
tolerance,
_stroke_shaper_add_triangle,
_stroke_shaper_add_triangle_fan,
_stroke_shaper_add_quad,
&info);
if (unlikely (status))
goto finish;
}
finish:
_cairo_gl_composite_fini (&info.setup);
if (info.ctx)
status = _cairo_gl_context_release (info.ctx, status);
return status;
}
static cairo_int_status_t
_cairo_gl_msaa_compositor_mask (const cairo_compositor_t *compositor,
cairo_composite_rectangles_t *composite)
{
cairo_gl_composite_t setup;
cairo_gl_surface_t *dst = (cairo_gl_surface_t *) composite->surface;
cairo_gl_context_t *ctx = NULL;
cairo_int_status_t status;
cairo_operator_t op = composite->op;
cairo_traps_t traps;
cairo_bool_t use_color_attribute = FALSE;
if (! can_use_msaa_compositor (dst, CAIRO_ANTIALIAS_DEFAULT))
return CAIRO_INT_STATUS_UNSUPPORTED;
/* GL compositing operators cannot properly represent a mask operation
using the SOURCE compositing operator in one pass. This only matters if
there actually is a mask (there isn't in a paint operation) and if the
mask isn't totally opaque. */
if (op == CAIRO_OPERATOR_SOURCE &&
composite->original_mask_pattern != NULL &&
! _cairo_pattern_is_opaque (&composite->mask_pattern.base,
&composite->mask_sample_area)) {
/* If the source is opaque the operation reduces to OVER. */
if (_cairo_pattern_is_opaque (&composite->source_pattern.base,
&composite->source_sample_area))
op = CAIRO_OPERATOR_OVER;
else
return _cairo_gl_msaa_compositor_mask_source_operator (compositor, composite);
}
if (_should_use_unbounded_surface (composite)) {
cairo_surface_t* surface = _prepare_unbounded_surface (dst);
if (unlikely (surface == NULL))
return CAIRO_INT_STATUS_UNSUPPORTED;
/* This may be a paint operation. */
if (composite->original_mask_pattern == NULL) {
status = _cairo_compositor_paint (compositor, surface,
CAIRO_OPERATOR_SOURCE,
&composite->source_pattern.base,
NULL);
} else {
status = _cairo_compositor_mask (compositor, surface,
CAIRO_OPERATOR_SOURCE,
&composite->source_pattern.base,
&composite->mask_pattern.base,
NULL);
}
if (unlikely (status)) {
cairo_surface_destroy (surface);
return status;
}
return _paint_back_unbounded_surface (compositor, composite, surface);
}
status = _cairo_gl_composite_init (&setup,
op,
dst,
FALSE /* assume_component_alpha */);
if (unlikely (status))
goto finish;
_gl_pattern_fix_reference_count (composite->original_source_pattern);
if (! composite->clip ||
(composite->clip->num_boxes == 1 && ! composite->clip->path))
use_color_attribute = TRUE;
status = _cairo_gl_composite_set_source (&setup,
composite->original_source_pattern,
&composite->source_sample_area,
&composite->bounded,
use_color_attribute);
if (unlikely (status))
goto finish;
if (composite->original_mask_pattern != NULL) {
status = _cairo_gl_composite_set_mask (&setup,
composite->original_mask_pattern,
&composite->mask_sample_area,
&composite->bounded);
}
if (unlikely (status))
goto finish;
/* We always use multisampling here, because we do not yet have the smarts
to calculate when the clip or the source requires it. */
status = _cairo_gl_composite_begin_multisample (&setup, &ctx, TRUE);
if (unlikely (status))
goto finish;
_cairo_traps_init (&traps);
if (! composite->clip)
status = _draw_int_rect (ctx, &setup, &composite->bounded);
else
status = _cairo_gl_msaa_compositor_draw_clip (ctx, &setup, composite->clip, &traps);
_cairo_traps_fini (&traps);
finish:
_cairo_gl_composite_fini (&setup);
if (ctx)
status = _cairo_gl_context_release (ctx, status);
return status;
}
static cairo_int_status_t
_cairo_gl_msaa_compositor_glyphs (const cairo_compositor_t *compositor,
cairo_composite_rectangles_t *composite,
cairo_scaled_font_t *scaled_font,
cairo_glyph_t *glyphs,
int num_glyphs,
cairo_bool_t overlap)
{
cairo_int_status_t status;
cairo_surface_t *src = NULL;
int src_x, src_y;
cairo_composite_glyphs_info_t info;
cairo_gl_surface_t *dst = (cairo_gl_surface_t *) composite->surface;
query_surface_capabilities (dst);
if (! dst->supports_stencil)
return CAIRO_INT_STATUS_UNSUPPORTED;
if (composite->is_bounded == FALSE) {
cairo_surface_t* surface = _prepare_unbounded_surface (dst);
if (unlikely (surface == NULL))
return CAIRO_INT_STATUS_UNSUPPORTED;
status = _cairo_compositor_glyphs (compositor, surface,
CAIRO_OPERATOR_SOURCE,
&composite->source_pattern.base,
glyphs, num_glyphs,
scaled_font, composite->clip);
if (unlikely (status)) {
cairo_surface_destroy (surface);
return status;
}
return _paint_back_unbounded_surface (compositor, composite, surface);
}
src = _cairo_gl_pattern_to_source (&dst->base,
composite->original_source_pattern,
FALSE,
&composite->bounded,
&composite->source_sample_area,
&src_x, &src_y);
if (unlikely (src->status)) {
status = src->status;
goto finish;
}
status = _cairo_gl_check_composite_glyphs (composite,
scaled_font, glyphs,
&num_glyphs);
if (unlikely (status != CAIRO_INT_STATUS_SUCCESS))
goto finish;
info.font = scaled_font;
info.glyphs = glyphs;
info.num_glyphs = num_glyphs;
info.use_mask = overlap || ! composite->is_bounded ||
composite->op == CAIRO_OPERATOR_SOURCE;
info.extents = composite->bounded;
_cairo_scaled_font_freeze_cache (scaled_font);
status = _cairo_gl_composite_glyphs_with_clip (dst, composite->op,
src, src_x, src_y,
0, 0, &info,
composite->clip,
TRUE);
_cairo_scaled_font_thaw_cache (scaled_font);
finish:
if (src)
cairo_surface_destroy (src);
return status;
}
static cairo_int_status_t
_cairo_gl_msaa_compositor_fill (const cairo_compositor_t *compositor,
cairo_composite_rectangles_t *composite,
const cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias)
{
cairo_gl_composite_t setup;
cairo_gl_surface_t *dst = (cairo_gl_surface_t *) composite->surface;
cairo_gl_context_t *ctx = NULL;
cairo_int_status_t status;
cairo_traps_t traps;
cairo_bool_t draw_path_with_traps;
if (! can_use_msaa_compositor (dst, antialias))
return CAIRO_INT_STATUS_UNSUPPORTED;
if (composite->is_bounded == FALSE) {
cairo_surface_t* surface = _prepare_unbounded_surface (dst);
if (unlikely (surface == NULL))
return CAIRO_INT_STATUS_UNSUPPORTED;
status = _cairo_compositor_fill (compositor, surface,
CAIRO_OPERATOR_SOURCE,
&composite->source_pattern.base,
path, fill_rule, tolerance,
antialias, NULL);
if (unlikely (status)) {
cairo_surface_destroy (surface);
return status;
}
return _paint_back_unbounded_surface (compositor, composite, surface);
}
draw_path_with_traps = ! _cairo_path_fixed_is_simple_quad (path);
if (draw_path_with_traps) {
_cairo_traps_init (&traps);
status = _cairo_path_fixed_fill_to_traps (path, fill_rule, tolerance, &traps);
if (unlikely (status))
goto cleanup_traps;
}
status = _cairo_gl_composite_init (&setup,
composite->op,
dst,
FALSE /* assume_component_alpha */);
if (unlikely (status))
goto cleanup_traps;
status = _cairo_gl_composite_set_source (&setup,
&composite->source_pattern.base,
&composite->source_sample_area,
&composite->bounded,
FALSE);
if (unlikely (status))
goto cleanup_setup;
_cairo_gl_msaa_compositor_set_clip (composite, &setup);
if (antialias != CAIRO_ANTIALIAS_NONE)
_cairo_gl_composite_set_multisample (&setup);
status = _cairo_gl_composite_begin (&setup, &ctx);
if (unlikely (status))
goto cleanup_setup;
if (! draw_path_with_traps)
status = _draw_simple_quad_path (ctx, &setup, path);
else
status = _draw_traps (ctx, &setup, &traps);
if (unlikely (status))
goto cleanup_setup;
cleanup_setup:
_cairo_gl_composite_fini (&setup);
if (ctx)
status = _cairo_gl_context_release (ctx, status);
cleanup_traps:
if (draw_path_with_traps)
_cairo_traps_fini (&traps);
return status;
}
static cairo_int_status_t
_cairo_gl_msaa_compositor_stroke (const cairo_compositor_t *compositor,
cairo_composite_rectangles_t *composite,
const cairo_path_fixed_t *path,
const cairo_stroke_style_t *style,
const cairo_matrix_t *ctm,
const cairo_matrix_t *ctm_inverse,
double tolerance,
cairo_antialias_t antialias)
{
cairo_int_status_t status;
cairo_gl_surface_t *dst = (cairo_gl_surface_t *) composite->surface;
struct _tristrip_composite_info info;
if (! can_use_msaa_compositor (dst, antialias))
return CAIRO_INT_STATUS_UNSUPPORTED;
if (composite->is_bounded == FALSE) {
cairo_surface_t* surface = _prepare_unbounded_surface (dst);
if (unlikely (surface == NULL))
return CAIRO_INT_STATUS_UNSUPPORTED;
status = _cairo_compositor_stroke (compositor, surface,
CAIRO_OPERATOR_SOURCE,
&composite->source_pattern.base,
path, style, ctm, ctm_inverse,
tolerance, antialias, NULL);
if (unlikely (status)) {
cairo_surface_destroy (surface);
return status;
}
return _paint_back_unbounded_surface (compositor, composite, surface);
}
status = _cairo_gl_composite_init (&info.setup,
composite->op,
dst,
FALSE /* assume_component_alpha */);
if (unlikely (status))
return status;
info.ctx = NULL;
status = _cairo_gl_composite_set_source (&info.setup,
&composite->source_pattern.base,
&composite->source_sample_area,
&composite->bounded,
FALSE);
if (unlikely (status))
goto finish;
_cairo_gl_msaa_compositor_set_clip (composite, &info.setup);
if (antialias != CAIRO_ANTIALIAS_NONE)
_cairo_gl_composite_set_multisample (&info.setup);
status = _cairo_gl_composite_begin (&info.setup, &info.ctx);
if (unlikely (status))
goto finish;
status = _prevent_overlapping_strokes (info.ctx, &info.setup,
composite, path, style, ctm);
if (unlikely (status))
goto finish;
status = _cairo_path_fixed_stroke_to_shaper ((cairo_path_fixed_t *) path,
style,
ctm,
ctm_inverse,
tolerance,
_stroke_shaper_add_triangle,
_stroke_shaper_add_triangle_fan,
_stroke_shaper_add_quad,
&info);
if (unlikely (status))
goto finish;
finish:
_cairo_gl_composite_fini (&info.setup);
if (info.ctx)
status = _cairo_gl_context_release (info.ctx, status);
return status;
}
