svg_status_t
_svg_android_render_image (void *closure,
unsigned char *data,
unsigned int data_width,
unsigned int data_height,
svg_length_t *x_len,
svg_length_t *y_len,
svg_length_t *width_len,
svg_length_t *height_len)
{
svg_android_t *svg_android = closure;
double x, y, width, height;
jintArray iarr;
jobject bitmap;
jobject matrix;
DEBUG_ENTRY("render_image");
ANDROID_SAVE(svg_android);
_svg_android_length_to_pixel (svg_android, x_len, &x);
_svg_android_length_to_pixel (svg_android, y_len, &y);
_svg_android_length_to_pixel (svg_android, width_len, &width);
_svg_android_length_to_pixel (svg_android, height_len, &height);
// copy bitmap into an java int array
iarr = (*(svg_android->env))->NewIntArray(svg_android->env, data_width * data_height);
(*(svg_android->env))->SetIntArrayRegion(svg_android->env, iarr, 0, data_width * data_height , (jint *)data);
// create bitmap
bitmap = ANDROID_DATA_2_BITMAP(svg_android, iarr, data_width, data_height);
// prepare matrix
matrix = ANDROID_IDENTITY_MATRIX(svg_android);
ANDROID_MATRIX_TRANSLATE(svg_android, matrix, x, y);
ANDROID_MATRIX_SCALE(svg_android, matrix, width / data_width, height / data_height);
// and draw!
ANDROID_DRAW_BITMAP(svg_android, bitmap, matrix);
ANDROID_RESTORE(svg_android);
DEBUG_EXIT("render_image");
return SVG_ANDROID_STATUS_SUCCESS;
}
svg_status_t _svg_android_set_gradient (svg_android_t *svg_android,
svg_gradient_t *gradient,
svg_android_render_type_t type)
{
svg_gradient_stop_t *stop;
int i;
jobject matrix, gradient_matrix;
jobject gradient_shader = NULL;
matrix = ANDROID_IDENTITY_MATRIX(svg_android);
switch (gradient->units) {
case SVG_GRADIENT_UNITS_USER:
break;
case SVG_GRADIENT_UNITS_BBOX:
{
jfloatArray farr;
jfloat *coords;
farr = ANDROID_PATH_GET_BOUNDS(svg_android, svg_android->state->path);
coords = (*(svg_android->env))->GetFloatArrayElements((svg_android->env), farr, 0);
// Maybe we need to add the stroke width to be correct here? (if type == SVG_ANDROID_RENDER_TYPE_STROKE)
ANDROID_MATRIX_TRANSLATE(svg_android, matrix, coords[0], coords[1]);
ANDROID_MATRIX_SCALE(svg_android, matrix, coords[2] - coords[0], coords[3] - coords[1]);
(*(svg_android->env))->ReleaseFloatArrayElements(svg_android->env, farr, coords, 0);
#if 0 // note here how the cairo version checks for fill or stroke, the extents might be different.. but for android I use the bounds of the path, this doesn't account for stroke painting outside..
double x1, y1, x2, y2;
if (type == SVG_ANDROID_RENDER_TYPE_FILL)
cairo_fill_extents (svg_android->cr, &x1, &y1, &x2, &y2);
else
cairo_stroke_extents (svg_android->cr, &x1, &y1, &x2, &y2);
cairo_matrix_translate (&matrix, x1, y1);
cairo_matrix_scale (&matrix, x2 - x1, y2 - y1);
#endif
svg_android->state->bbox = 1;
} break;
}
// create java float array for the stops offsets, and int array for the colors
jfloat offsets[gradient->num_stops];
jint colors[gradient->num_stops];
for (i = 0; i < gradient->num_stops; i++) {
stop = &gradient->stops[i];
offsets[i] = stop->offset;
unsigned long r, g, b, o;
r = svg_color_get_red (&stop->color);
g = svg_color_get_green (&stop->color);
b = svg_color_get_blue (&stop->color);
o = (unsigned long)(stop->opacity * 255.0);
colors[i] =
(o & 0xff) << 24 |
(r & 0xff) << 16 |
(g & 0xff) << 8 |
(b & 0xff);
}
jfloatArray offsets_a;
jintArray colors_a;
offsets_a = (*(svg_android->env))->NewFloatArray(svg_android->env, gradient->num_stops);
colors_a = (*(svg_android->env))->NewIntArray(svg_android->env, gradient->num_stops);
(*(svg_android->env))->SetFloatArrayRegion(svg_android->env, offsets_a, 0, gradient->num_stops, offsets);
(*(svg_android->env))->SetIntArrayRegion(svg_android->env, colors_a, 0, gradient->num_stops, colors);
int spreadType = 2;
switch (gradient->spread) {
case SVG_GRADIENT_SPREAD_REPEAT:
spreadType = 0;
break;
case SVG_GRADIENT_SPREAD_REFLECT:
spreadType = 1;
break;
default:
spreadType = 2;
break;
}
switch (gradient->type) {
case SVG_GRADIENT_LINEAR:
{
double x1, y1, x2, y2;
_svg_android_length_to_pixel (svg_android, &gradient->u.linear.x1, &x1);
_svg_android_length_to_pixel (svg_android, &gradient->u.linear.y1, &y1);
_svg_android_length_to_pixel (svg_android, &gradient->u.linear.x2, &x2);
_svg_android_length_to_pixel (svg_android, &gradient->u.linear.y2, &y2);
if((*(svg_android->env))->ExceptionOccurred(svg_android->env)) {
(*(svg_android->env))->ExceptionDescribe(svg_android->env);
}
gradient_shader = ANDROID_CREATE_LINEAR_GRADIENT(svg_android, x1, y1, x2, y2, colors_a, offsets_a, spreadType);
if((*(svg_android->env))->ExceptionOccurred(svg_android->env)) {
(*(svg_android->env))->ExceptionDescribe(svg_android->env);
}
}
break;
case SVG_GRADIENT_RADIAL:
{
double cx, cy, r, fx, fy;
_svg_android_length_to_pixel (svg_android, &gradient->u.radial.cx, &cx);
_svg_android_length_to_pixel (svg_android, &gradient->u.radial.cy, &cy);
_svg_android_length_to_pixel (svg_android, &gradient->u.radial.r, &r);
_svg_android_length_to_pixel (svg_android, &gradient->u.radial.fx, &fx);
_svg_android_length_to_pixel (svg_android, &gradient->u.radial.fy, &fy);
gradient_shader = ANDROID_CREATE_RADIAL_GRADIENT(svg_android, fx, fy, r, colors_a, offsets_a, spreadType);
#if 0 // note here that there is a start and an end circel, android doesn't support that. The end circle in Android always have the same coords as the start circle
pattern = cairo_pattern_create_radial (fx, fy, 0.0, cx, cy, r);
#endif
} break;
}
gradient_matrix = ANDROID_MATRIX_CREATE(svg_android,
gradient->transform[0], gradient->transform[1],
gradient->transform[2], gradient->transform[3],
gradient->transform[4], gradient->transform[5]);
ANDROID_MATRIX_MULTIPLY(svg_android, matrix, gradient_matrix);
ANDROID_MATRIX_MULTIPLY(svg_android, matrix, svg_android->state->matrix);
if(svg_android->fit_to_area)
ANDROID_MATRIX_MULTIPLY(svg_android, matrix, svg_android->fit_to_MATRIX);
if(gradient_shader) {
ANDROID_SHADER_SET_MATRIX(svg_android, gradient_shader, matrix);
ANDROID_PAINT_SET_SHADER(svg_android, gradient_shader);
}
svg_android->state->bbox = 0;
return SVG_STATUS_SUCCESS;
}
svg_status_t
_svg_android_apply_view_box (void *closure,
svg_view_box_t view_box,
svg_length_t *width,
svg_length_t *height)
{
svg_android_t *svg_android = closure;
double vpar, svgar;
double logic_width, logic_height;
double logic_x, logic_y;
double phys_width, phys_height;
DEBUG_ENTRY("apply_view_box");
_svg_android_length_to_pixel (svg_android, width, &phys_width);
_svg_android_length_to_pixel (svg_android, height, &phys_height);
vpar = view_box.box.width / view_box.box.height;
svgar = phys_width / phys_height;
logic_x = view_box.box.x;
logic_y = view_box.box.y;
logic_width = view_box.box.width;
logic_height = view_box.box.height;
if (view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_NONE)
{
ANDROID_MATRIX_SCALE(svg_android,svg_android->state->matrix,
phys_width / logic_width,
phys_height / logic_height);
ANDROID_MATRIX_TRANSLATE(svg_android, svg_android->state->matrix, -logic_x, -logic_y);
}
else if ((vpar < svgar && view_box.meet_or_slice == SVG_MEET_OR_SLICE_MEET) ||
(vpar >= svgar && view_box.meet_or_slice == SVG_MEET_OR_SLICE_SLICE))
{
ANDROID_MATRIX_SCALE(svg_android, svg_android->state->matrix,
phys_height / logic_height, phys_height / logic_height);
if (view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMINYMIN ||
view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMINYMID ||
view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMINYMAX)
ANDROID_MATRIX_TRANSLATE(
svg_android, svg_android->state->matrix, -logic_x, -logic_y);
else if(view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMIDYMIN ||
view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMIDYMID ||
view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMIDYMAX)
ANDROID_MATRIX_TRANSLATE(
svg_android, svg_android->state->matrix,
-logic_x -
(logic_width - phys_width * logic_height / phys_height) / 2,
-logic_y);
else
ANDROID_MATRIX_TRANSLATE(
svg_android, svg_android->state->matrix,
-logic_x - (logic_width - phys_width * logic_height / phys_height),
-logic_y);
}
else
{
ANDROID_MATRIX_SCALE(svg_android, svg_android->state->matrix,
phys_width / logic_width, phys_width / logic_width);
if (view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMINYMIN ||
view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMIDYMIN ||
view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMAXYMIN)
ANDROID_MATRIX_TRANSLATE(
svg_android, svg_android->state->matrix,
-logic_x, -logic_y);
else if(view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMINYMID ||
view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMIDYMID ||
view_box.aspect_ratio == SVG_PRESERVE_ASPECT_RATIO_XMAXYMID)
ANDROID_MATRIX_TRANSLATE(
svg_android, svg_android->state->matrix,
-logic_x,
-logic_y - (logic_height - phys_height * logic_width / phys_width) / 2);
else
ANDROID_MATRIX_TRANSLATE(
svg_android, svg_android->state->matrix,
-logic_x,
-logic_y - (logic_height - phys_height * logic_width / phys_width));
}
DEBUG_EXIT("apply_view_box");
return SVG_STATUS_SUCCESS;
}
