/**************************************************************************
*
* Copyright 2009 VMware, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "vg_state.h"
#include <string.h>
void vg_init_state(struct vg_state *state)
{
state->matrix_mode = VG_MATRIX_PATH_USER_TO_SURFACE;
state->fill_rule = VG_EVEN_ODD;
state->image_quality = VG_IMAGE_QUALITY_FASTER;
state->rendering_quality = VG_RENDERING_QUALITY_BETTER;
state->blend_mode = VG_BLEND_SRC_OVER;
state->image_mode = VG_DRAW_IMAGE_NORMAL;
memset(state
->scissor_rects
, 0, sizeof(state
->scissor_rects
)); state->scissor_rects_num = 0;
state->color_transform = VG_FALSE;
state->color_transform_values[0] = 1.0f;
state->color_transform_values[1] = 1.0f;
state->color_transform_values[2] = 1.0f;
state->color_transform_values[3] = 1.0f;
state->color_transform_values[4] = 0.0f;
state->color_transform_values[5] = 0.0f;
state->color_transform_values[6] = 0.0f;
state->color_transform_values[7] = 0.0f;
/* Stroke parameters */
state->stroke.line_width.f = 1.0f;
state->stroke.line_width.i = 1;
state->stroke.cap_style = VG_CAP_BUTT;
state->stroke.join_style = VG_JOIN_MITER;
state->stroke.miter_limit.f = 4.0f;
state->stroke.miter_limit.i = 4;
state->stroke.dash_pattern_num = 0;
state->stroke.dash_phase.f = 0.0f;
state->stroke.dash_phase.i = 0;
state->stroke.dash_phase_reset = VG_FALSE;
/* Edge fill color for VG_TILE_FILL tiling mode */
state->tile_fill_color[0] = 0.0f;
state->tile_fill_color[1] = 0.0f;
state->tile_fill_color[2] = 0.0f;
state->tile_fill_color[3] = 0.0f;
/* Color for vgClear */
state->clear_color[0] = 0.0f;
state->clear_color[1] = 0.0f;
state->clear_color[2] = 0.0f;
state->clear_color[3] = 0.0f;
/* Glyph origin */
state->glyph_origin[0].f = 0.0f;
state->glyph_origin[1].f = 0.0f;
state->glyph_origin[0].i = 0;
state->glyph_origin[1].i = 0;
/* Enable/disable alpha masking and scissoring */
state->masking = VG_FALSE;
state->scissoring = VG_FALSE;
/* Pixel layout information */
state->pixel_layout = VG_PIXEL_LAYOUT_UNKNOWN;
state->screen_layout = VG_PIXEL_LAYOUT_UNKNOWN;
/* Source format selection for image filters */
state->filter_format_linear = VG_FALSE;
state->filter_format_premultiplied = VG_FALSE;
/* Destination write enable mask for image filters */
state->filter_channel_mask = (VG_RED | VG_GREEN | VG_BLUE | VG_ALPHA);
matrix_load_identity(&state->path_user_to_surface_matrix);
matrix_load_identity(&state->image_user_to_surface_matrix);
matrix_load_identity(&state->fill_paint_to_user_matrix);
matrix_load_identity(&state->stroke_paint_to_user_matrix);
matrix_load_identity(&state->glyph_user_to_surface_matrix);
}
struct matrix *vg_state_matrix(struct vg_state *state)
{
switch(state->matrix_mode) {
case VG_MATRIX_PATH_USER_TO_SURFACE:
return &state->path_user_to_surface_matrix;
case VG_MATRIX_IMAGE_USER_TO_SURFACE:
return &state->image_user_to_surface_matrix;
case VG_MATRIX_FILL_PAINT_TO_USER:
return &state->fill_paint_to_user_matrix;
case VG_MATRIX_STROKE_PAINT_TO_USER:
return &state->stroke_paint_to_user_matrix;
#ifdef OPENVG_VERSION_1_1
case VG_MATRIX_GLYPH_USER_TO_SURFACE:
return &state->glyph_user_to_surface_matrix;
#endif
default:
break;
}
return NULL;
}