src/gallium/state_trackers/vega/vg_state.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.  All Rights Reserved.
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   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
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  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
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  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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  25  **************************************************************************/
  26
  27 #ifndef VG_STATE_H
  28 #define VG_STATE_H
  29
  30 #include "VG/openvg.h"
  31
  32 #include "api_consts.h"
  33 #include "matrix.h"
  34
  35 struct vg_value
  36 {
  37    VGfloat f;
  38    VGint   i;
  39 };
  40
  41 struct vg_state {
  42    /* Mode settings */
  43    VGMatrixMode matrix_mode;
  44    VGFillRule fill_rule;
  45    VGImageQuality image_quality;
  46    VGRenderingQuality rendering_quality;
  47    VGBlendMode blend_mode;
  48    VGImageMode image_mode;
  49
  50    /* Scissoring rectangles */
  51    struct vg_value  scissor_rects[32*4];
  52    VGint  scissor_rects_num;
  53
  54    /* Color Transformation */
  55    VGboolean color_transform;
  56    VGfloat color_transform_values[8];
  57
  58    /* Stroke parameters */
  59    struct {
  60       struct vg_value line_width;
  61       VGCapStyle cap_style;
  62       VGJoinStyle join_style;
  63       struct vg_value miter_limit;
  64       struct vg_value dash_pattern[VEGA_MAX_DASH_COUNT];
  65       VGint   dash_pattern_num;
  66       struct vg_value dash_phase;
  67       VGboolean dash_phase_reset;
  68    } stroke;
  69
  70    /* Edge fill color for VG_TILE_FILL tiling mode */
  71    VGfloat tile_fill_color[4];
  72    VGint tile_fill_colori[4];
  73
  74    /* Color for vgClear */
  75    VGfloat clear_color[4];
  76    VGint clear_colori[4];
  77
  78    /* Glyph origin */
  79    struct vg_value glyph_origin[2];
  80
  81    /* Enable/disable alpha masking and scissoring */
  82    VGboolean masking;
  83    VGboolean scissoring;
  84
  85    /* Pixel layout information */
  86    VGPixelLayout pixel_layout;
  87    VGPixelLayout screen_layout;
  88
  89    /* Source format selection for image filters */
  90    VGboolean filter_format_linear;
  91    VGboolean filter_format_premultiplied;
  92
  93    /* Destination write enable mask for image filters */
  94    VGbitfield filter_channel_mask;
  95
  96    struct matrix path_user_to_surface_matrix;
  97    struct matrix image_user_to_surface_matrix;
  98    struct matrix fill_paint_to_user_matrix;
  99    struct matrix stroke_paint_to_user_matrix;
 100    struct matrix glyph_user_to_surface_matrix;
 101
 102    struct vg_paint *stroke_paint;
 103    struct vg_paint *fill_paint;
 104 };
 105
 106 void vg_init_state(struct vg_state *state);
 107 struct matrix * vg_state_matrix(struct vg_state *state);
 108
 109 #endif