[cairo] [PATCH] skia: update the source to build with the latest skia

RAVI NANJUNDAPPA nravi.n at samsung.com
Mon Jun 23 01:45:55 PDT 2014


Hi all, 

I've tested this patch with the latest skia source that has the following change as the last commit and the patch works fine on this skia source.
Kindly help me in reviewing the patch.

commit 876633087ee3aa591e3d4c7039dfeb3e76bb6cb7
Author: reed <reed at chromium.org>
Date:   Mon Jun 9 20:40:05 2014 -0700

Thanks and Best Regards, 
N Ravi

------- Original Message -------
Sender : RAVI NANJUNDAPPA<nravi.n at samsung.com> Technical Lead/SRI-Bangalore-TZN/Samsung Electronics
Date : Jun 23, 2014 14:14 (GMT+05:30)
Title : [PATCH] skia: update the source to build with the latest skia

This fixes several build related issues for the skia backend
which is introduced due to skia source up-gradation.

Signed-off-by: Ravi Nanjundappa 
---
configure.ac                    |   12 ++++----
src/skia/cairo-skia-context.cpp |   61 ++++++++++++++++++++++++++++++---------
src/skia/cairo-skia-private.h   |    4 +--
src/skia/cairo-skia-surface.cpp |    9 ++----
4 files changed, 58 insertions(+), 28 deletions(-)

diff --git a/configure.ac b/configure.ac
index fdcb2dc..04479ff 100644
--- a/configure.ac
+++ b/configure.ac
@@ -249,16 +249,16 @@ CAIRO_ENABLE_SURFACE_BACKEND(skia, Skia, no, [
      [directory to find compiled skia sources])],
      [skia_DIR="$withval"],
      [skia_DIR="`pwd`/../skia"])
-  AC_ARG_WITH([skia-bulid],
-       [AS_HELP_STRING([--with-skia-build=(Release|Debug)]
+  AC_ARG_WITH([skia-build-type],
+       [AS_HELP_STRING([--with-skia-build-type=(Release|Debug)]
      [build of skia to link with, default is Release])],
-       [skia_BUILD="$withval"],
-       [skia_BUILD="Release"])
+       [skia_BUILD_TYPE="$withval"],
+       [skia_BUILD_TYPE="Release"])
   skia_NONPKGCONFIG_CFLAGS="-I$skia_DIR/include/config -I$skia_DIR/include/core -I$skia_DIR/include/effects"
-  if test "x$skia_BUILD" = x"Release"; then
+  if test "x$skia_BUILD_TYPE" = "xRelease"; then
   skia_NONPKGCONFIG_CFLAGS="-DSK_RELEASE -DSK_CAN_USE_FLOAT $skia_NONPKGCONFIG_CFLAGS"
   fi
-  skia_NONPKGCONFIG_LIBS="--start-group $skia_DIR/out/$skia_BUILD/obj.target/gyp/libeffects.a $skia_DIR/out/$skia_BUILD/obj.target/gyp/libimages.a $skia_DIR/out/$skia_BUILD/obj.target/gyp/libutils.a $skia_DIR/out/$skia_BUILD/obj.target/gyp/libopts.a $skia_DIR/out/$skia_BUILD/obj.target/gyp/libcore.a -end-group"
+  skia_NONPKGCONFIG_LIBS="-L$skia_DIR/out/$skia_BUILD_TYPE/lib.target/ -lskia -lstdc++"
   AC_SUBST(skia_DIR)
])

diff --git a/src/skia/cairo-skia-context.cpp b/src/skia/cairo-skia-context.cpp
index bbe5507..c2d9fba 100644
--- a/src/skia/cairo-skia-context.cpp
+++ b/src/skia/cairo-skia-context.cpp
@@ -53,6 +53,7 @@
#include "cairo-skia-private.h"
#include "cairo-surface-backend-private.h"

+#include 
#include 
#include 
#include 
@@ -236,14 +237,15 @@ 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.setConfig (config, img->width, img->height, img->stride);
-    bitmap.setIsOpaque (opaque);
+    colorType = SkBitmapConfigToColorType(config);
+    bitmap.setInfo (SkImageInfo::Make(img->width, img->height, colorType, kPremul_SkAlphaType), img->stride);
     bitmap.setPixels (img->data);

     return true;
@@ -330,9 +332,18 @@ source_to_sk_shader (cairo_skia_context_t *cr,
if (surface->type == CAIRO_SURFACE_TYPE_SKIA) {
    cairo_skia_surface_t *esurf = (cairo_skia_surface_t *) surface;

-     shader = SkShader::CreateBitmapShader (*esurf->bitmap,
+            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;

@@ -351,9 +362,18 @@ source_to_sk_shader (cairo_skia_context_t *cr,
    if (unlikely (! surface_to_sk_bitmap (surface, bitmap)))
return NULL;

-     shader = SkShader::CreateBitmapShader (bitmap,
-    extend_to_sk (pattern->extend),
-    extend_to_sk (pattern->extend));
+     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 */)
@@ -382,8 +402,17 @@ source_to_sk_shader (cairo_skia_context_t *cr,
   SkFloatToScalar (linear->pd1.y));
    points[1].set (SkFloatToScalar (linear->pd2.x),
   SkFloatToScalar (linear->pd2.y));
-     shader = SkGradientShader::CreateLinear (points, colors, pos, gradient->n_stops,
+
+     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
}
@@ -394,8 +423,8 @@ source_to_sk_shader (cairo_skia_context_t *cr,
}
     }

-    if (shader && ! _cairo_matrix_is_identity (&pattern->matrix))
- shader->setLocalMatrix (matrix_inverse_to_sk (pattern->matrix));
+    //if (shader && ! _cairo_matrix_is_identity (&pattern->matrix))
+ //shader->setLocalMatrix (matrix_inverse_to_sk (pattern->matrix));

     return shader;
}
@@ -446,6 +475,7 @@ _cairo_skia_context_set_source (void *abstract_cr,
cr->paint->setColor (color);
     } else {
SkShader *shader = source_to_sk_shader (cr, source);
+ SkPaint::FilterLevel fLevel = (SkPaint::FilterLevel) pattern_filter_to_sk (source);
if (shader == NULL) {
    UNSUPPORTED;
    return CAIRO_STATUS_SUCCESS;
@@ -454,7 +484,9 @@ _cairo_skia_context_set_source (void *abstract_cr,
cr->paint->setShader (shader);
shader->unref ();

- cr->paint->setFilterBitmap (pattern_filter_to_sk (source));
+        cr->paint->setFilterLevel(fLevel ?
+ (SkPaint::kLow_FilterLevel) :
+ (SkPaint::kNone_FilterLevel));
     }

     /* XXX change notification */
@@ -496,7 +528,10 @@ _cairo_skia_context_set_source_surface (void *abstract_cr,
cr->paint->setShader (shader);
shader->unref ();

- cr->paint->setFilterBitmap (true);
+ cr->paint->setFilterLevel(true ?
+ (SkPaint::kLow_FilterLevel) :
+ (SkPaint::kNone_FilterLevel));
+

return CAIRO_STATUS_SUCCESS;
     }
@@ -682,7 +717,7 @@ _cairo_skia_context_set_dash (void *abstract_cr,
    intervals[i++] = SkFloatToScalar (dashes[j]);
     } while (loop--);

-    SkDashPathEffect *dash = new SkDashPathEffect (intervals, num_dashes, SkFloatToScalar (offset));
+    SkDashPathEffect *dash = SkDashPathEffect::Create (intervals, num_dashes, SkFloatToScalar (offset));

     cr->paint->setPathEffect (dash);
     dash->unref ();
@@ -1264,7 +1299,7 @@ _cairo_skia_context_paint_with_alpha (void *abstract_cr,
     if (CAIRO_ALPHA_IS_OPAQUE (alpha))
return _cairo_skia_context_paint (cr);

-    cr->paint->setAlpha(SkScalarRound(255*alpha));
+    cr->paint->setAlpha(SkScalarRoundToInt(255*alpha));
     status = _cairo_skia_context_paint (cr);
     cr->paint->setAlpha(255);

diff --git a/src/skia/cairo-skia-private.h b/src/skia/cairo-skia-private.h
index de3897b..f538b48 100644
--- a/src/skia/cairo-skia-private.h
+++ b/src/skia/cairo-skia-private.h
@@ -111,11 +111,9 @@ format_to_sk_config (cairo_format_t format,
     case CAIRO_FORMAT_A8:
config = SkBitmap::kA8_Config;
break;
-    case CAIRO_FORMAT_A1:
- config = SkBitmap::kA1_Config;
- break;
     case CAIRO_FORMAT_RGB30:
     case CAIRO_FORMAT_INVALID:
+    case CAIRO_FORMAT_A1:
     default:
return false;
     }
diff --git a/src/skia/cairo-skia-surface.cpp b/src/skia/cairo-skia-surface.cpp
index bb785e1..682f3db 100644
--- a/src/skia/cairo-skia-surface.cpp
+++ b/src/skia/cairo-skia-surface.cpp
@@ -207,9 +207,6 @@ sk_config_to_pixman_format_code (SkBitmap::Config config,

     case SkBitmap::kA8_Config:
return PIXMAN_a8;
-
-    case SkBitmap::kA1_Config:
- return PIXMAN_a1;
     case SkBitmap::kRGB_565_Config:
return PIXMAN_r5g6b5;
     case SkBitmap::kARGB_4444_Config:
@@ -217,7 +214,6 @@ sk_config_to_pixman_format_code (SkBitmap::Config config,

     case SkBitmap::kNo_Config:
     case SkBitmap::kIndex8_Config:
-    case SkBitmap::kRLE_Index8_Config:
     case SkBitmap::kConfigCount:
     default:
ASSERT_NOT_REACHED;
@@ -236,6 +232,7 @@ _cairo_skia_surface_create_internal (SkBitmap::Config config,
     cairo_skia_surface_t *surface;
     pixman_image_t *pixman_image;
     pixman_format_code_t pixman_format;
+    SkColorType colorType;

     surface = (cairo_skia_surface_t *) malloc (sizeof (cairo_skia_surface_t));
     if (unlikely (surface == NULL))
@@ -256,8 +253,8 @@ _cairo_skia_surface_create_internal (SkBitmap::Config config,
     _cairo_image_surface_init (&surface->image, pixman_image, pixman_format);

     surface->bitmap = new SkBitmap;
-    surface->bitmap->setConfig (config, width, height, surface->image.stride);
-    surface->bitmap->setIsOpaque (opaque);
+    colorType = SkBitmapConfigToColorType(config);
+    surface->bitmap->setInfo (SkImageInfo::Make(width, height, colorType, kPremul_SkAlphaType), surface->image.stride);
     surface->bitmap->setPixels (surface->image.data);

     surface->image.base.is_clear = data == NULL;
-- 
1.7.9.5


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