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-rw-r--r--src/skia/cairo-skia-context.cpp1781
1 files changed, 1781 insertions, 0 deletions
diff --git a/src/skia/cairo-skia-context.cpp b/src/skia/cairo-skia-context.cpp
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index 000000000..9ffb8f6a2
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+++ b/src/skia/cairo-skia-context.cpp
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+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005 Red Hat, Inc.
+ * Copyright © 2010 Intel Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ * Carl D. Worth <cworth@cworth.org>
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-private.h"
+#include "cairo-error-private.h"
+#include "cairo-arc-private.h"
+#include "cairo-backend-private.h"
+#include "cairo-default-context-private.h"
+#include "cairo-freed-pool-private.h"
+#include "cairo-gstate-private.h"
+#include "cairo-image-surface-inline.h"
+#include "cairo-path-private.h"
+#include "cairo-pattern-private.h"
+#include "cairo-skia-private.h"
+#include "cairo-surface-backend-private.h"
+
+#include <SkPaint.h>
+#include <SkShader.h>
+#include <SkColorShader.h>
+#include <SkGradientShader.h>
+#include <SkDashPathEffect.h>
+
+#if !defined(INFINITY)
+#define INFINITY HUGE_VAL
+#endif
+
+#if (CAIRO_FIXED_BITS == 32) && (CAIRO_FIXED_FRAC_BITS == 16) && defined(SK_SCALAR_IS_FIXED)
+# define CAIRO_FIXED_TO_SK_SCALAR(x) (x)
+#elif defined(SK_SCALAR_IS_FIXED)
+/* This can be done better, but this will do for now */
+# define CAIRO_FIXED_TO_SK_SCALAR(x) SkFloatToScalar(_cairo_fixed_to_double(x))
+#else
+# define CAIRO_FIXED_TO_SK_SCALAR(x) SkFloatToScalar(_cairo_fixed_to_double(x))
+#endif
+
+#define UNSUPPORTED
+
+
+static freed_pool_t context_pool;
+
+static void
+_cairo_skia_context_destroy (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->path->reset ();
+ cr->paint->reset ();
+
+ delete cr->canvas;
+
+ cairo_surface_destroy (&cr->target->image.base);
+ cairo_surface_destroy (&cr->original->image.base);
+
+ if (cr->source != NULL) {
+ if (cr->source_image != NULL) {
+ _cairo_surface_release_source_image (cr->source, cr->source_image, cr->source_extra);
+ cr->source_image = NULL;
+ }
+ cairo_surface_destroy (cr->source);
+ cr->source = NULL;
+ }
+
+ _cairo_fini (&cr->base);
+
+ _freed_pool_put (&context_pool, cr);
+}
+
+static cairo_surface_t *
+_cairo_skia_context_get_original_target (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ return &cr->original->image.base;
+}
+
+static cairo_surface_t *
+_cairo_skia_context_get_current_target (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ return &cr->target->image.base;
+}
+
+static cairo_status_t
+_cairo_skia_context_save (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->canvas->save ();
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_restore (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->canvas->restore ();
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_push_group (void *abstract_cr, cairo_content_t content)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ cairo_surface_t *group_surface;
+ cairo_status_t status;
+ int width, height;
+
+ //clip = _cairo_gstate_get_clip (cr->gstate);
+ width = cr->target->image.width;
+ height = cr->target->image.height;
+ group_surface = cr->target->image.base.backend->create_similar (&cr->target->image.base,
+ content, width, height);
+
+#if 0
+ /* Set device offsets on the new surface so that logically it appears at
+ * the same location on the parent surface -- when we pop_group this,
+ * the source pattern will get fixed up for the appropriate target surface
+ * device offsets, so we want to set our own surface offsets from /that/,
+ * and not from the device origin. */
+ cairo_surface_set_device_offset (group_surface,
+ parent_surface->device_transform.x0 - extents.x,
+ parent_surface->device_transform.y0 - extents.y);
+
+ /* If we have a current path, we need to adjust it to compensate for
+ * the device offset just applied. */
+ _cairo_path_fixed_transform (cr->path,
+ &group_surface->device_transform);
+#endif
+
+ status = _cairo_skia_context_save (cr);
+ if (unlikely (status)) {
+ cairo_surface_destroy (group_surface);
+ return status;
+ }
+
+ cairo_surface_destroy (&cr->target->image.base);
+ cr->target = (cairo_skia_surface_t *) group_surface;
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_pattern_t *
+_cairo_skia_context_pop_group (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ cairo_surface_t *group_surface;
+ cairo_pattern_t *group_pattern;
+ cairo_status_t status;
+
+ group_surface = cairo_surface_reference (&cr->target->image.base);
+
+ status = _cairo_skia_context_restore (cr);
+ if (unlikely (status)) {
+ group_pattern = _cairo_pattern_create_in_error (status);
+ goto done;
+ }
+
+ group_pattern = cairo_pattern_create_for_surface (group_surface);
+ status = group_pattern->status;
+ if (unlikely (status))
+ goto done;
+
+#if 0
+ _cairo_gstate_get_matrix (cr->gstate, &group_matrix);
+ /* Transform by group_matrix centered around device_transform so that when
+ * we call _cairo_gstate_copy_transformed_pattern the result is a pattern
+ * with a matrix equivalent to the device_transform of group_surface. */
+ if (_cairo_surface_has_device_transform (group_surface)) {
+ cairo_pattern_set_matrix (group_pattern, &group_surface->device_transform);
+ _cairo_pattern_transform (group_pattern, &group_matrix);
+ _cairo_pattern_transform (group_pattern, &group_surface->device_transform_inverse);
+ } else {
+ cairo_pattern_set_matrix (group_pattern, &group_matrix);
+ }
+
+ /* If we have a current path, we need to adjust it to compensate for
+ * the device offset just removed. */
+ _cairo_path_fixed_transform (cr->path,
+ &group_surface->device_transform_inverse);
+#endif
+
+done:
+ cairo_surface_destroy (group_surface);
+
+ return group_pattern;
+}
+
+static inline cairo_surface_t *
+surface_from_pattern (const cairo_pattern_t *pattern)
+{
+ return (reinterpret_cast <const cairo_surface_pattern_t *> (pattern))->surface;
+}
+
+static inline bool
+surface_to_sk_bitmap (cairo_surface_t *surface, SkBitmap& bitmap)
+{
+ cairo_image_surface_t *img = (cairo_image_surface_t *) surface;
+ SkBitmap::Config config;
+ SkColorType colorType;
+ bool opaque;
+
+ if (unlikely (! format_to_sk_config (img->format, config, opaque)))
+ return false;
+
+ bitmap.reset ();
+ bitmap.setAlphaType (opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType);
+ colorType = SkBitmapConfigToColorType(config);
+ bitmap.setInfo (SkImageInfo::Make(img->width, img->height, colorType, kPremul_SkAlphaType), img->stride);
+ bitmap.setPixels (img->data);
+
+
+ return true;
+}
+
+static inline SkMatrix
+matrix_to_sk (const cairo_matrix_t& mat)
+{
+ SkMatrix skm;
+
+ skm.reset ();
+ skm.set (SkMatrix::kMScaleX, SkFloatToScalar (mat.xx));
+ skm.set (SkMatrix::kMSkewX, SkFloatToScalar (mat.xy));
+ skm.set (SkMatrix::kMTransX, SkFloatToScalar (mat.x0));
+ skm.set (SkMatrix::kMSkewY, SkFloatToScalar (mat.yx));
+ skm.set (SkMatrix::kMScaleY, SkFloatToScalar (mat.yy));
+ skm.set (SkMatrix::kMTransY, SkFloatToScalar (mat.y0));
+
+ /*
+ skm[6] = SkFloatToScalar (0.0);
+ skm[7] = SkFloatToScalar (0.0);
+ skm[8] = SkFloatToScalar (1.0); -- this isn't right, it wants a magic value in there that it'll set itself. It wants Sk_Fract1 (2.30), not Sk_Scalar1
+ */
+
+ return skm;
+}
+
+static inline SkMatrix
+matrix_inverse_to_sk (const cairo_matrix_t& mat)
+{
+ cairo_matrix_t inv = mat;
+ cairo_status_t status = cairo_matrix_invert (&inv);
+ assert (status == CAIRO_STATUS_SUCCESS);
+ return matrix_to_sk (inv);
+}
+
+static SkShader::TileMode
+extend_to_sk (cairo_extend_t extend)
+{
+ static const SkShader::TileMode modeMap[] = {
+ SkShader::kClamp_TileMode, // NONE behaves like PAD, because noone wants NONE
+ SkShader::kRepeat_TileMode,
+ SkShader::kMirror_TileMode,
+ SkShader::kClamp_TileMode
+ };
+
+ return modeMap[extend];
+}
+
+static inline SkColor
+color_to_sk (const cairo_color_t& c)
+{
+ /* Need unpremultiplied 1-byte values */
+ return SkColorSetARGB ((U8CPU) (c.alpha * 255),
+ (U8CPU) (c.red * 255),
+ (U8CPU) (c.green * 255),
+ (U8CPU) (c.blue * 255));
+}
+
+static inline SkColor
+color_stop_to_sk (const cairo_color_stop_t& c)
+{
+ /* Need unpremultiplied 1-byte values */
+ return SkColorSetARGB ((U8CPU) (c.alpha * 255),
+ (U8CPU) (c.red * 255),
+ (U8CPU) (c.green * 255),
+ (U8CPU) (c.blue * 255));
+}
+
+static SkShader*
+source_to_sk_shader (cairo_skia_context_t *cr,
+ const cairo_pattern_t *pattern)
+{
+ SkShader *shader = NULL;
+
+ if (pattern->type == CAIRO_PATTERN_TYPE_SOLID) {
+ cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) pattern;
+ return new SkColorShader (color_to_sk (solid->color));
+ } else if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) {
+ cairo_surface_t *surface = surface_from_pattern (pattern);
+
+ cr->source = cairo_surface_reference (surface);
+
+ if (surface->type == CAIRO_SURFACE_TYPE_SKIA) {
+ cairo_skia_surface_t *esurf = (cairo_skia_surface_t *) surface;
+
+ if (! _cairo_matrix_is_identity (&pattern->matrix))
+ {
+ SkMatrix localMatrix = matrix_inverse_to_sk (pattern->matrix);
+ shader = SkShader::CreateBitmapShader (*esurf->bitmap,
+ extend_to_sk (pattern->extend),
+ extend_to_sk (pattern->extend),
+ &localMatrix);
+ } else {
+ shader = SkShader::CreateBitmapShader (*esurf->bitmap,
+ extend_to_sk (pattern->extend),
+ extend_to_sk (pattern->extend));
+ }
+ } else {
+ SkBitmap bitmap;
+
+ if (! _cairo_surface_is_image (surface)) {
+ cairo_status_t status;
+
+ status = _cairo_surface_acquire_source_image (surface,
+ &cr->source_image,
+ &cr->source_extra);
+ if (status)
+ return NULL;
+
+ surface = &cr->source_image->base;
+ }
+
+ if (unlikely (! surface_to_sk_bitmap (surface, bitmap)))
+ return NULL;
+
+ if (! _cairo_matrix_is_identity (&pattern->matrix))
+ {
+ SkMatrix localMatrix = matrix_inverse_to_sk (pattern->matrix);
+ shader = SkShader::CreateBitmapShader (bitmap,
+ extend_to_sk (pattern->extend),
+ extend_to_sk (pattern->extend),
+ &localMatrix);
+ } else {
+ shader = SkShader::CreateBitmapShader (bitmap,
+ extend_to_sk (pattern->extend),
+ extend_to_sk (pattern->extend));
+ }
+ }
+ } else if (pattern->type == CAIRO_PATTERN_TYPE_LINEAR
+ /* || pattern->type == CAIRO_PATTERN_TYPE_RADIAL */)
+ {
+ cairo_gradient_pattern_t *gradient = (cairo_gradient_pattern_t *) pattern;
+ SkColor colors_stack[10];
+ SkScalar pos_stack[10];
+ SkColor *colors = colors_stack;
+ SkScalar *pos = pos_stack;
+
+ if (gradient->n_stops > 10) {
+ colors = new SkColor[gradient->n_stops];
+ pos = new SkScalar[gradient->n_stops];
+ }
+
+ for (unsigned int i = 0; i < gradient->n_stops; i++) {
+ pos[i] = CAIRO_FIXED_TO_SK_SCALAR (gradient->stops[i].offset);
+ colors[i] = color_stop_to_sk (gradient->stops[i].color);
+ }
+
+ if (pattern->type == CAIRO_PATTERN_TYPE_LINEAR) {
+ cairo_linear_pattern_t *linear = (cairo_linear_pattern_t *) gradient;
+ SkPoint points[2];
+
+ points[0].set (SkFloatToScalar (linear->pd1.x),
+ SkFloatToScalar (linear->pd1.y));
+ points[1].set (SkFloatToScalar (linear->pd2.x),
+ SkFloatToScalar (linear->pd2.y));
+
+ if(! _cairo_matrix_is_identity (&pattern->matrix))
+ {
+ SkMatrix localMatrix = matrix_inverse_to_sk (pattern->matrix);
+ shader = SkGradientShader::CreateLinear (points, colors, pos, gradient->n_stops,
+ extend_to_sk (pattern->extend),
+ 0, &localMatrix);
+ } else {
+ shader = SkGradientShader::CreateLinear (points, colors, pos, gradient->n_stops,
+ extend_to_sk (pattern->extend));
+ }
+ } else {
+ // XXX todo -- implement real radial shaders in Skia
+ }
+
+ if (gradient->n_stops > 10) {
+ delete [] colors;
+ delete [] pos;
+ }
+ }
+
+ return shader;
+}
+
+static inline bool
+pattern_filter_to_sk (const cairo_pattern_t *pattern)
+{
+ switch (pattern->filter) {
+ case CAIRO_FILTER_GOOD:
+ case CAIRO_FILTER_BEST:
+ case CAIRO_FILTER_BILINEAR:
+ case CAIRO_FILTER_GAUSSIAN:
+ return true;
+ default:
+ case CAIRO_FILTER_FAST:
+ case CAIRO_FILTER_NEAREST:
+ return false;
+ }
+}
+
+static inline bool
+pattern_to_sk_color (const cairo_pattern_t *pattern, SkColor& color)
+{
+ if (pattern->type != CAIRO_PATTERN_TYPE_SOLID)
+ return false;
+
+ color = color_to_sk (((cairo_solid_pattern_t *) pattern)->color);
+ return true;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_source (void *abstract_cr,
+ cairo_pattern_t *source)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ SkColor color;
+
+ if (cr->source != NULL) {
+ if (cr->source_image != NULL) {
+ _cairo_surface_release_source_image (cr->source, cr->source_image, cr->source_extra);
+ cr->source_image = NULL;
+ }
+ cairo_surface_destroy (cr->source);
+ cr->source = NULL;
+ }
+
+ if (pattern_to_sk_color (source, color)) {
+ cr->paint->setColor (color);
+ } else {
+ SkShader *shader = source_to_sk_shader (cr, source);
+ bool fLevel = pattern_filter_to_sk (source);
+ if (shader == NULL) {
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+ }
+
+ cr->paint->setShader (shader);
+ shader->unref ();
+
+ cr->paint->setFilterLevel (fLevel ?
+ (SkPaint::kLow_FilterLevel) : (SkPaint::kNone_FilterLevel));
+ }
+
+ /* XXX change notification */
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_source_rgba (void *abstract_cr, double red, double green, double blue, double alpha)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ /* Need unpremultiplied 1-byte values */
+ cr->paint->setARGB ((U8CPU) (alpha * 255),
+ (U8CPU) (red * 255),
+ (U8CPU) (green * 255),
+ (U8CPU) (blue * 255));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_source_surface (void *abstract_cr,
+ cairo_surface_t *surface,
+ double x,
+ double y)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ cairo_pattern_t *pattern;
+ cairo_matrix_t matrix;
+ cairo_status_t status;
+
+ if (surface->type == CAIRO_SURFACE_TYPE_SKIA) {
+ cairo_skia_surface_t *esurf = (cairo_skia_surface_t *) surface;
+ SkShader *shader;
+
+ shader = SkShader::CreateBitmapShader (*esurf->bitmap,
+ SkShader::kClamp_TileMode, /* XXX */
+ SkShader::kClamp_TileMode);
+
+ cr->paint->setShader (shader);
+ shader->unref ();
+
+ cr->paint->setFilterLevel (true ?
+ (SkPaint::kLow_FilterLevel) : (SkPaint::kNone_FilterLevel));
+
+ return CAIRO_STATUS_SUCCESS;
+ }
+
+ pattern = cairo_pattern_create_for_surface (surface);
+ if (unlikely (pattern->status))
+ return pattern->status;
+
+ cairo_matrix_init_translate (&matrix, -x, -y);
+ cairo_pattern_set_matrix (pattern, &matrix);
+
+ status = _cairo_skia_context_set_source (cr, pattern);
+ cairo_pattern_destroy (pattern);
+
+ return status;
+}
+
+static cairo_pattern_t *
+_cairo_skia_context_get_source (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return NULL;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_tolerance (void *abstract_cr,
+ double tolerance)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ /* XXX ignored */
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static inline SkXfermode::Mode
+operator_to_sk (cairo_operator_t op)
+{
+ static const SkXfermode::Mode modeMap[] = {
+ SkXfermode::kClear_Mode,
+
+ SkXfermode::kSrc_Mode,
+ SkXfermode::kSrcOver_Mode,
+ SkXfermode::kSrcIn_Mode,
+ SkXfermode::kSrcOut_Mode,
+ SkXfermode::kSrcATop_Mode,
+
+ SkXfermode::kDst_Mode,
+ SkXfermode::kDstOver_Mode,
+ SkXfermode::kDstIn_Mode,
+ SkXfermode::kDstOut_Mode,
+ SkXfermode::kDstATop_Mode,
+
+ SkXfermode::kXor_Mode,
+ SkXfermode::kPlus_Mode, // XXX Add?
+ SkXfermode::kPlus_Mode, // XXX SATURATE
+
+ SkXfermode::kPlus_Mode,
+ SkXfermode::kMultiply_Mode,
+ SkXfermode::kScreen_Mode,
+ SkXfermode::kOverlay_Mode,
+ SkXfermode::kDarken_Mode,
+ SkXfermode::kLighten_Mode,
+ SkXfermode::kColorDodge_Mode,
+ SkXfermode::kColorBurn_Mode,
+ SkXfermode::kHardLight_Mode,
+ SkXfermode::kSoftLight_Mode,
+ SkXfermode::kDifference_Mode,
+ SkXfermode::kExclusion_Mode,
+
+ SkXfermode::kSrcOver_Mode, // XXX: CAIRO_OPERATOR_HSL_HUE
+ SkXfermode::kSrcOver_Mode, // XXX: CAIRO_OPERATOR_HSL_SATURATION,
+ SkXfermode::kSrcOver_Mode, // XXX: CAIRO_OPERATOR_HSL_COLOR,
+ SkXfermode::kSrcOver_Mode, // XXX: CAIRO_OPERATOR_HSL_LUMINOSITY
+ };
+
+ return modeMap[op];
+}
+
+static cairo_status_t
+_cairo_skia_context_set_operator (void *abstract_cr, cairo_operator_t op)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->paint->setXfermodeMode (operator_to_sk (op));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_opacity (void *abstract_cr, double opacity)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ /* XXX */
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_antialias (void *abstract_cr, cairo_antialias_t antialias)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->paint->setAntiAlias (antialias != CAIRO_ANTIALIAS_NONE);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_fill_rule (void *abstract_cr,
+ cairo_fill_rule_t fill_rule)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->path->setFillType (fill_rule == CAIRO_FILL_RULE_WINDING ? SkPath::kWinding_FillType : SkPath::kEvenOdd_FillType);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_line_width (void *abstract_cr,
+ double line_width)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->paint->setStrokeWidth (SkFloatToScalar (line_width));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_line_cap (void *abstract_cr,
+ cairo_line_cap_t line_cap)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ static const SkPaint::Cap map[] = {
+ SkPaint::kButt_Cap,
+ SkPaint::kRound_Cap,
+ SkPaint::kSquare_Cap
+ };
+ cr->paint->setStrokeCap (map[line_cap]);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_line_join (void *abstract_cr,
+ cairo_line_join_t line_join)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ static const SkPaint::Join map[] = {
+ SkPaint::kMiter_Join,
+ SkPaint::kRound_Join,
+ SkPaint::kBevel_Join
+ };
+ cr->paint->setStrokeJoin (map[line_join]);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_dash (void *abstract_cr,
+ const double *dashes,
+ int num_dashes,
+ double offset)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ SkScalar intervals_static[20];
+ SkScalar *intervals = intervals_static;
+
+ if (num_dashes == 0) {
+ cr->paint->setPathEffect (NULL);
+ return CAIRO_STATUS_SUCCESS;
+ }
+
+ int loop = 0;
+ if ((num_dashes & 1) != 0) {
+ loop = 1;
+ num_dashes <<= 1;
+ }
+
+ if (num_dashes > 20)
+ intervals = new SkScalar[num_dashes];
+
+ int i = 0;
+ do {
+ for (int j = 0; i < num_dashes; j++)
+ intervals[i++] = SkFloatToScalar (dashes[j]);
+ } while (loop--);
+
+ SkDashPathEffect *dash = SkDashPathEffect::Create (intervals, num_dashes, SkFloatToScalar (offset));
+
+ cr->paint->setPathEffect (dash);
+ dash->unref ();
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_miter_limit (void *abstract_cr, double limit)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->paint->setStrokeMiter (SkFloatToScalar (limit));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_antialias_t
+_cairo_skia_context_get_antialias (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ return cr->paint->isAntiAlias () ? CAIRO_ANTIALIAS_DEFAULT : CAIRO_ANTIALIAS_NONE;
+}
+
+static void
+_cairo_skia_context_get_dash (void *abstract_cr,
+ double *dashes,
+ int *num_dashes,
+ double *offset)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ *num_dashes = 0;
+ /* XXX */
+}
+
+static cairo_fill_rule_t
+_cairo_skia_context_get_fill_rule (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ SkPath::FillType ft;
+
+ ft = cr->path->getFillType ();
+ if (ft == SkPath::kWinding_FillType)
+ return CAIRO_FILL_RULE_WINDING;
+ if (ft == SkPath::kEvenOdd_FillType)
+ return CAIRO_FILL_RULE_EVEN_ODD;;
+
+ UNSUPPORTED;
+ return CAIRO_FILL_RULE_WINDING;
+}
+
+static double
+_cairo_skia_context_get_line_width (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ return /* ScalarToFloat */ cr->paint->getStrokeWidth ();
+}
+
+static cairo_line_cap_t
+_cairo_skia_context_get_line_cap (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ static const cairo_line_cap_t map[] = {
+ CAIRO_LINE_CAP_BUTT,
+ CAIRO_LINE_CAP_ROUND,
+ CAIRO_LINE_CAP_SQUARE
+ };
+ return map[cr->paint->getStrokeCap ()];
+}
+
+static cairo_line_join_t
+_cairo_skia_context_get_line_join (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ static const cairo_line_join_t map[] = {
+ CAIRO_LINE_JOIN_MITER,
+ CAIRO_LINE_JOIN_ROUND,
+ CAIRO_LINE_JOIN_BEVEL
+ };
+ return map[cr->paint->getStrokeJoin ()];
+}
+
+static double
+_cairo_skia_context_get_miter_limit (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ return /* SkScalarToFloat */ cr->paint->getStrokeMiter ();
+}
+
+static cairo_operator_t
+_cairo_skia_context_get_operator (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ //cr->paint->getXfermode ();
+ return CAIRO_OPERATOR_OVER;
+}
+
+static double
+_cairo_skia_context_get_opacity (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return 1.;
+}
+
+static double
+_cairo_skia_context_get_tolerance (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ /* XXX */
+ return CAIRO_GSTATE_TOLERANCE_DEFAULT;
+}
+
+
+/* Current tranformation matrix */
+
+static cairo_status_t
+_cairo_skia_context_translate (void *abstract_cr,
+ double tx,
+ double ty)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cairo_matrix_translate (&cr->matrix, tx, ty);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_scale (void *abstract_cr,
+ double sx,
+ double sy)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cairo_matrix_scale (&cr->matrix, sx, sy);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_rotate (void *abstract_cr,
+ double theta)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cairo_matrix_rotate (&cr->matrix, theta);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_transform (void *abstract_cr,
+ const cairo_matrix_t *matrix)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cairo_matrix_multiply (&cr->matrix, &cr->matrix, matrix);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_matrix (void *abstract_cr,
+ const cairo_matrix_t *matrix)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->matrix = *matrix;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_identity_matrix (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cairo_matrix_init_identity (&cr->matrix);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+_cairo_skia_context_get_matrix (void *abstract_cr,
+ cairo_matrix_t *matrix)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ *matrix = cr->matrix;
+}
+
+static void
+_cairo_skia_context_user_to_device (void *abstract_cr,
+ double *x,
+ double *y)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cairo_matrix_transform_point (&cr->matrix, x, y);
+}
+
+static void
+_cairo_skia_context_user_to_device_distance (void *abstract_cr,
+ double *dx,
+ double *dy)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cairo_matrix_transform_distance (&cr->matrix, dx, dy);
+}
+
+static void
+_cairo_skia_context_device_to_user (void *abstract_cr,
+ double *x,
+ double *y)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ cairo_matrix_t inverse;
+ cairo_status_t status;
+
+ inverse = cr->matrix;
+ status = cairo_matrix_invert (&inverse);
+ assert (CAIRO_STATUS_SUCCESS == status);
+
+ cairo_matrix_transform_point (&inverse, x, y);
+}
+
+static void
+_cairo_skia_context_device_to_user_distance (void *abstract_cr,
+ double *dx,
+ double *dy)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ cairo_matrix_t inverse;
+ cairo_status_t status;
+
+ inverse = cr->matrix;
+ status = cairo_matrix_invert (&inverse);
+ assert (CAIRO_STATUS_SUCCESS == status);
+
+ cairo_matrix_transform_distance (&inverse, dx, dy);
+}
+
+/* Path constructor */
+
+static cairo_status_t
+_cairo_skia_context_new_path (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->path->reset ();
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_new_sub_path (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->path->rMoveTo (0, 0); /* XXX */
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+user_to_device_point (cairo_skia_context_t *cr, double *x, double *y)
+{
+ cairo_matrix_transform_point (&cr->matrix, x, y);
+ cairo_matrix_transform_point (&cr->target->image.base.device_transform, x, y);
+}
+
+static void
+user_to_device_distance (cairo_skia_context_t *cr, double *dx, double *dy)
+{
+ cairo_matrix_transform_distance (&cr->matrix, dx, dy);
+ cairo_matrix_transform_distance (&cr->target->image.base.device_transform, dx, dy);
+}
+
+static cairo_status_t
+_cairo_skia_context_move_to (void *abstract_cr, double x, double y)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ user_to_device_point (cr, &x, &y);
+ cr->path->moveTo (SkFloatToScalar (x), SkFloatToScalar (y));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_line_to (void *abstract_cr, double x, double y)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ user_to_device_point (cr, &x, &y);
+ cr->path->lineTo (SkFloatToScalar (x), SkFloatToScalar (y));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_curve_to (void *abstract_cr,
+ double x1, double y1,
+ double x2, double y2,
+ double x3, double y3)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ user_to_device_point (cr, &x1, &y1);
+ user_to_device_point (cr, &x2, &y2);
+ user_to_device_point (cr, &x3, &y3);
+ cr->path->cubicTo (SkFloatToScalar (x1), SkFloatToScalar (y1),
+ SkFloatToScalar (x2), SkFloatToScalar (y2),
+ SkFloatToScalar (x3), SkFloatToScalar (y3));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_arc_to (void *abstract_cr,
+ double x1, double y1,
+ double x2, double y2,
+ double radius)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+#if 0
+ user_to_device_point (cr, &x1, &y1);
+ user_to_device_point (cr, &x2, &y2);
+ user_to_device_distance (cr, &radius, &radius);
+#endif
+
+ cr->path->arcTo (SkFloatToScalar (x1), SkFloatToScalar (y1),
+ SkFloatToScalar (x2), SkFloatToScalar (y2),
+ SkFloatToScalar (radius));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_rel_move_to (void *abstract_cr, double dx, double dy)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ user_to_device_distance (cr, &dx, &dy);
+ cr->path->rMoveTo (SkFloatToScalar (dx), SkFloatToScalar (dy));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_rel_line_to (void *abstract_cr, double dx, double dy)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ user_to_device_distance (cr, &dx, &dy);
+ cr->path->rLineTo (SkFloatToScalar (dx), SkFloatToScalar (dy));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_rel_curve_to (void *abstract_cr,
+ double dx1, double dy1,
+ double dx2, double dy2,
+ double dx3, double dy3)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ user_to_device_distance (cr, &dx1, &dy1);
+ user_to_device_distance (cr, &dx2, &dy2);
+ user_to_device_distance (cr, &dx3, &dy3);
+ cr->path->rCubicTo (SkFloatToScalar (dx1), SkFloatToScalar (dy1),
+ SkFloatToScalar (dx2), SkFloatToScalar (dy2),
+ SkFloatToScalar (dx3), SkFloatToScalar (dy3));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_rel_arc_to (void *abstract_cr,
+ double dx1, double dy1,
+ double dx2, double dy2,
+ double radius)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+#if 0
+ user_to_device_point (cr, &x1, &y1);
+ user_to_device_point (cr, &x2, &y2);
+ user_to_device_distance (cr, &radius, &radius);
+#endif
+
+ cr->path->arcTo (SkFloatToScalar (dx1), SkFloatToScalar (dy1),
+ SkFloatToScalar (dx2), SkFloatToScalar (dy2),
+ SkFloatToScalar (radius));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_close_path (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->path->close ();
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_rectangle (void *abstract_cr,
+ double x, double y,
+ double width, double height)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ double x1, y1, x2, y2;
+
+ /* XXX assume no rotation! */
+ x1 = x, y1 = y;
+ user_to_device_point (cr, &x1, &y1);
+
+ x2 = x + width, y2 = y + height;
+ user_to_device_point (cr, &x2, &y2);
+
+ cr->path->addRect (SkFloatToScalar (x1), SkFloatToScalar (y1),
+ SkFloatToScalar (x2), SkFloatToScalar (y2));
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_arc (void *abstract_cr,
+ double xc, double yc, double radius,
+ double angle1, double angle2,
+ cairo_bool_t forward)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ cairo_status_t status;
+
+ /* XXX cr->path->arc() */
+
+ /* Do nothing, successfully, if radius is <= 0 */
+ if (radius <= 0.0) {
+ status = _cairo_skia_context_line_to (cr, xc, yc);
+ if (unlikely (status))
+ return status;
+
+ status = _cairo_skia_context_line_to (cr, xc, yc);
+ if (unlikely (status))
+ return status;
+
+ return CAIRO_STATUS_SUCCESS;
+ }
+
+ status = _cairo_skia_context_line_to (cr,
+ xc + radius * cos (angle1),
+ yc + radius * sin (angle1));
+
+ if (unlikely (status))
+ return status;
+
+ if (forward)
+ _cairo_arc_path (&cr->base, xc, yc, radius, angle1, angle2);
+ else
+ _cairo_arc_path_negative (&cr->base, xc, yc, radius, angle1, angle2);
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+_cairo_skia_context_path_extents (void *abstract_cr,
+ double *x1,
+ double *y1,
+ double *x2,
+ double *y2)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ SkRect rect;
+
+ rect = cr->path->getBounds ();
+
+ UNSUPPORTED;
+ /* XXX transform SkScalar rect to user */
+}
+
+static cairo_bool_t
+_cairo_skia_context_has_current_point (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ return TRUE;
+}
+
+static cairo_bool_t
+_cairo_skia_context_get_current_point (void *abstract_cr,
+ double *x,
+ double *y)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ SkPoint pt;
+
+ cr->path->getLastPt (&pt);
+ //*x = SkScalarToFloat (pt.x);
+ //*y = SkScalarToFloat (pt.y);
+ //_cairo_gstate_backend_to_user (cr->gstate, x, y);
+
+ return TRUE;
+}
+
+static cairo_path_t *
+_cairo_skia_context_copy_path (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ /* XXX iterate */
+ UNSUPPORTED;
+ return NULL;
+}
+
+static cairo_path_t *
+_cairo_skia_context_copy_path_flat (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ /* XXX iterate and decompose */
+ UNSUPPORTED;
+ return NULL;
+}
+
+static cairo_status_t
+_cairo_skia_context_append_path (void *abstract_cr,
+ const cairo_path_t *path)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ // return _cairo_path_append_to_context (path, cr);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_stroke_to_path (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->paint->setStyle (SkPaint::kStroke_Style);
+ cr->paint->getFillPath (*cr->path, cr->path);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+
+static cairo_status_t
+_cairo_skia_context_paint (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+#if 0
+ if (cr->source != NULL) {
+ SkBitmap bitmap;
+ SkMatrix bitmapMatrix;
+
+ if (cr->source->type == CAIRO_SURFACE_TYPE_SKIA) {
+ cairo_skia_surface_t *esurf = (cairo_skia_surface_t *) cr->source->type;
+
+ bitmap = *esurf->bitmap;
+ } else {
+ surface_to_sk_bitmap (&cr->source_image->base, bitmap);
+ }
+
+ // XXX pattern->matrix, pattern->filter, pattern->extend
+ cr->canvas->drawBitmapMatrix (bitmap, bitmapMatrix, cr->paint);
+ } else {
+ cr->canvas->drawPaint (*cr->paint);
+ }
+#else
+ cr->canvas->drawPaint (*cr->paint);
+#endif
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_paint_with_alpha (void *abstract_cr,
+ double alpha)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ cairo_status_t status;
+
+ if (CAIRO_ALPHA_IS_OPAQUE (alpha))
+ return _cairo_skia_context_paint (cr);
+
+ cr->paint->setAlpha(SkScalarRoundToInt(255*alpha));
+ status = _cairo_skia_context_paint (cr);
+ cr->paint->setAlpha(255);
+
+ return status;
+}
+
+static cairo_status_t
+_cairo_skia_context_mask (void *abstract_cr,
+ cairo_pattern_t *mask)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ /* XXX */
+ //UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_stroke_preserve (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->paint->setStyle (SkPaint::kStroke_Style);
+
+ /* XXX pen transformation? */
+ //assert (_cairo_matrix_is_identity (&cr->matrix));
+ cr->canvas->drawPath (*cr->path, *cr->paint);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_stroke (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ cairo_status_t status;
+
+ status = _cairo_skia_context_stroke_preserve (cr);
+ if (unlikely (status))
+ return status;
+
+ return _cairo_skia_context_new_path (cr);
+}
+
+static cairo_status_t
+_cairo_skia_context_in_stroke (void *abstract_cr,
+ double x, double y,
+ cairo_bool_t *inside)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_stroke_extents (void *abstract_cr,
+ double *x1, double *y1, double *x2, double *y2)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_fill_preserve (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->paint->setStyle (SkPaint::kFill_Style);
+ cr->canvas->drawPath (*cr->path, *cr->paint);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_fill (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ cairo_status_t status;
+
+ status = _cairo_skia_context_fill_preserve (cr);
+ if (unlikely (status))
+ return status;
+
+ return _cairo_skia_context_new_path (cr);
+}
+
+static cairo_status_t
+_cairo_skia_context_in_fill (void *abstract_cr,
+ double x, double y,
+ cairo_bool_t *inside)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_fill_extents (void *abstract_cr,
+ double *x1, double *y1, double *x2, double *y2)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_clip_preserve (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ cr->canvas->clipPath (*cr->path);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_clip (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ cairo_status_t status;
+
+ status = _cairo_skia_context_clip_preserve (cr);
+ if (unlikely (status))
+ return status;
+
+ return _cairo_skia_context_new_path (cr);
+}
+
+static cairo_status_t
+_cairo_skia_context_in_clip (void *abstract_cr,
+ double x, double y,
+ cairo_bool_t *inside)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_reset_clip (void *abstract_cr)
+{
+ cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ SkRegion rgn(SkIRect::MakeWH (cr->target->bitmap->width (),
+ cr->target->bitmap->height ()));
+
+ cr->canvas->setClipRegion(rgn);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_clip_extents (void *abstract_cr,
+ double *x1, double *y1,
+ double *x2, double *y2)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_rectangle_list_t *
+_cairo_skia_context_copy_clip_rectangle_list (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return NULL;
+}
+
+static cairo_status_t
+_cairo_skia_context_copy_page (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_show_page (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_font_face (void *abstract_cr,
+ cairo_font_face_t *font_face)
+{
+ // cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ //return _cairo_gstate_set_font_face (cr->gstate, font_face);
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_font_face_t *
+_cairo_skia_context_get_font_face (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return NULL;
+}
+
+static cairo_status_t
+_cairo_skia_context_font_extents (void *abstract_cr,
+ cairo_font_extents_t *extents)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_font_size (void *abstract_cr,
+ double size)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_font_matrix (void *abstract_cr,
+ const cairo_matrix_t *matrix)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+_cairo_skia_context_get_font_matrix (void *abstract_cr,
+ cairo_matrix_t *matrix)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_font_options (void *abstract_cr,
+ const cairo_font_options_t *options)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+_cairo_skia_context_get_font_options (void *abstract_cr,
+ cairo_font_options_t *options)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+}
+
+static cairo_status_t
+_cairo_skia_context_set_scaled_font (void *abstract_cr,
+ cairo_scaled_font_t *scaled_font)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_scaled_font_t *
+_cairo_skia_context_get_scaled_font (void *abstract_cr)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return _cairo_scaled_font_create_in_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
+}
+
+static cairo_status_t
+_cairo_skia_context_glyphs (void *abstract_cr,
+ const cairo_glyph_t *glyphs,
+ int num_glyphs,
+ cairo_glyph_text_info_t *info)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ /* XXX */
+ //UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_glyph_path (void *abstract_cr,
+ const cairo_glyph_t *glyphs,
+ int num_glyphs)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_skia_context_glyph_extents (void *abstract_cr,
+ const cairo_glyph_t *glyphs,
+ int num_glyphs,
+ cairo_text_extents_t *extents)
+{
+ //cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
+
+ UNSUPPORTED;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static const cairo_backend_t _cairo_skia_context_backend = {
+ CAIRO_TYPE_SKIA,
+ _cairo_skia_context_destroy,
+
+ _cairo_skia_context_get_original_target,
+ _cairo_skia_context_get_current_target,
+
+ _cairo_skia_context_save,
+ _cairo_skia_context_restore,
+
+ _cairo_skia_context_push_group,
+ _cairo_skia_context_pop_group,
+
+ _cairo_skia_context_set_source_rgba,
+ _cairo_skia_context_set_source_surface,
+ _cairo_skia_context_set_source,
+ _cairo_skia_context_get_source,
+
+ _cairo_skia_context_set_antialias,
+ _cairo_skia_context_set_dash,
+ _cairo_skia_context_set_fill_rule,
+ _cairo_skia_context_set_line_cap,
+ _cairo_skia_context_set_line_join,
+ _cairo_skia_context_set_line_width,
+ _cairo_skia_context_set_miter_limit,
+ _cairo_skia_context_set_opacity,
+ _cairo_skia_context_set_operator,
+ _cairo_skia_context_set_tolerance,
+ _cairo_skia_context_get_antialias,
+ _cairo_skia_context_get_dash,
+ _cairo_skia_context_get_fill_rule,
+ _cairo_skia_context_get_line_cap,
+ _cairo_skia_context_get_line_join,
+ _cairo_skia_context_get_line_width,
+ _cairo_skia_context_get_miter_limit,
+ _cairo_skia_context_get_opacity,
+ _cairo_skia_context_get_operator,
+ _cairo_skia_context_get_tolerance,
+
+ _cairo_skia_context_translate,
+ _cairo_skia_context_scale,
+ _cairo_skia_context_rotate,
+ _cairo_skia_context_transform,
+ _cairo_skia_context_set_matrix,
+ _cairo_skia_context_set_identity_matrix,
+ _cairo_skia_context_get_matrix,
+ _cairo_skia_context_user_to_device,
+ _cairo_skia_context_user_to_device_distance,
+ _cairo_skia_context_device_to_user,
+ _cairo_skia_context_device_to_user_distance,
+ _cairo_skia_context_user_to_device, /* XXX backend */
+ _cairo_skia_context_user_to_device_distance, /* XXX backend */
+ _cairo_skia_context_device_to_user, /* XXX backend */
+ _cairo_skia_context_device_to_user_distance, /* XXX backend */
+
+ _cairo_skia_context_new_path,
+ _cairo_skia_context_new_sub_path,
+ _cairo_skia_context_move_to,
+ _cairo_skia_context_rel_move_to,
+ _cairo_skia_context_line_to,
+ _cairo_skia_context_rel_line_to,
+ _cairo_skia_context_curve_to,
+ _cairo_skia_context_rel_curve_to,
+ _cairo_skia_context_arc_to,
+ _cairo_skia_context_rel_arc_to,
+ _cairo_skia_context_close_path,
+ _cairo_skia_context_arc,
+ _cairo_skia_context_rectangle,
+ _cairo_skia_context_path_extents,
+ _cairo_skia_context_has_current_point,
+ _cairo_skia_context_get_current_point,
+ _cairo_skia_context_copy_path,
+ _cairo_skia_context_copy_path_flat,
+ _cairo_skia_context_append_path,
+
+ _cairo_skia_stroke_to_path,
+
+ _cairo_skia_context_clip,
+ _cairo_skia_context_clip_preserve,
+ _cairo_skia_context_in_clip,
+ _cairo_skia_context_clip_extents,
+ _cairo_skia_context_reset_clip,
+ _cairo_skia_context_copy_clip_rectangle_list,
+
+ _cairo_skia_context_paint,
+ _cairo_skia_context_paint_with_alpha,
+ _cairo_skia_context_mask,
+
+ _cairo_skia_context_stroke,
+ _cairo_skia_context_stroke_preserve,
+ _cairo_skia_context_in_stroke,
+ _cairo_skia_context_stroke_extents,
+
+ _cairo_skia_context_fill,
+ _cairo_skia_context_fill_preserve,
+ _cairo_skia_context_in_fill,
+ _cairo_skia_context_fill_extents,
+
+ _cairo_skia_context_set_font_face,
+ _cairo_skia_context_get_font_face,
+ _cairo_skia_context_set_font_size,
+ _cairo_skia_context_set_font_matrix,
+ _cairo_skia_context_get_font_matrix,
+ _cairo_skia_context_set_font_options,
+ _cairo_skia_context_get_font_options,
+ _cairo_skia_context_set_scaled_font,
+ _cairo_skia_context_get_scaled_font,
+ _cairo_skia_context_font_extents,
+
+ _cairo_skia_context_glyphs,
+ _cairo_skia_context_glyph_path,
+ _cairo_skia_context_glyph_extents,
+
+ _cairo_skia_context_copy_page,
+ _cairo_skia_context_show_page,
+};
+
+cairo_t *
+_cairo_skia_context_create (void *target)
+{
+ cairo_skia_surface_t *surface = (cairo_skia_surface_t *) target;
+ cairo_skia_context_t *cr;
+
+ cr = (cairo_skia_context_t *) _freed_pool_get (&context_pool);
+ if (unlikely (cr == NULL)) {
+ cr = new cairo_skia_context_t;
+ if (unlikely (cr == NULL))
+ return _cairo_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+
+ cr->path = new SkPath;
+ cr->paint = new SkPaint;
+ }
+
+ _cairo_init (&cr->base, &_cairo_skia_context_backend);
+
+ cr->source = NULL;
+ cr->source_image = NULL;
+
+ cr->paint->setStrokeWidth (SkFloatToScalar (2.0));
+
+ cr->target = (cairo_skia_surface_t *) cairo_surface_reference ((cairo_surface_t *) target);
+ cr->original = (cairo_skia_surface_t *) cairo_surface_reference ((cairo_surface_t *) target);
+ cr->canvas = new SkCanvas (*surface->bitmap);
+ cr->canvas->save ();
+
+ cairo_matrix_init_identity (&cr->matrix);
+
+ return &cr->base;
+}
+
+#if 0
+void
+_cairo_skia_context_set_SkPaint (cairo_t *cr, SkPaint paint)
+{
+ *cr->paint = paint;
+}
+
+void
+_cairo_skia_context_set_SkPath (cairo_t *cr, SkPath path)
+{
+ *cr->path = path;
+}
+#endif