src/gallium/state_trackers/vega/api_paint.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.  All Rights Reserved.
   4  *
   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,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  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.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  **************************************************************************/
  26
  27 #include "VG/openvg.h"
  28
  29 #include "vg_context.h"
  30 #include "paint.h"
  31 #include "api.h"
  32
  33 VGPaint vegaCreatePaint(void)
  34 {
  35    return (VGPaint) paint_create(vg_current_context());
  36 }
  37
  38 void vegaDestroyPaint(VGPaint p)
  39 {
  40    struct vg_context *ctx = vg_current_context();
  41    struct vg_paint *paint;
  42
  43    if (p == VG_INVALID_HANDLE) {
  44       vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
  45       return;
  46    }
  47
  48    paint = (struct vg_paint *)p;
  49    paint_destroy(paint);
  50 }
  51
  52 void vegaSetPaint(VGPaint paint, VGbitfield paintModes)
  53 {
  54    struct vg_context *ctx = vg_current_context();
  55
  56    if (paint == VG_INVALID_HANDLE) {
  57       /* restore the default */
  58       paint = (VGPaint)ctx->default_paint;
  59    } else if (!vg_object_is_valid((void*)paint, VG_OBJECT_PAINT)) {
  60       vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
  61       return;
  62    }
  63
  64    if (!(paintModes & ((VG_FILL_PATH|VG_STROKE_PATH)))) {
  65       vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
  66       return;
  67    }
  68
  69    if (paintModes & VG_FILL_PATH) {
  70       ctx->state.vg.fill_paint = (struct vg_paint *)paint;
  71    }
  72    if (paintModes & VG_STROKE_PATH) {
  73       ctx->state.vg.stroke_paint = (struct vg_paint *)paint;
  74    }
  75 }
  76
  77 VGPaint vegaGetPaint(VGPaintMode paintMode)
  78 {
  79    struct vg_context *ctx = vg_current_context();
  80    VGPaint paint = VG_INVALID_HANDLE;
  81
  82    if (paintMode < VG_STROKE_PATH || paintMode > VG_FILL_PATH) {
  83       vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
  84       return VG_INVALID_HANDLE;
  85    }
  86
  87    if (paintMode == VG_FILL_PATH)
  88       paint = (VGPaint)ctx->state.vg.fill_paint;
  89    else if (paintMode == VG_STROKE_PATH)
  90       paint = (VGPaint)ctx->state.vg.stroke_paint;
  91
  92    if (paint == (VGPaint)ctx->default_paint)
  93       paint = VG_INVALID_HANDLE;
  94
  95    return paint;
  96 }
  97
  98 void vegaSetColor(VGPaint paint, VGuint rgba)
  99 {
 100    struct vg_context *ctx = vg_current_context();
 101
 102    if (paint == VG_INVALID_HANDLE) {
 103       vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
 104       return;
 105    }
 106
 107    if (!vg_object_is_valid((void*)paint, VG_OBJECT_PAINT)) {
 108       vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
 109       return;
 110    }
 111    {
 112       struct vg_paint *p = (struct vg_paint *)paint;
 113       paint_set_colori(p, rgba);
 114    }
 115 }
 116
 117 VGuint vegaGetColor(VGPaint paint)
 118 {
 119    struct vg_context *ctx = vg_current_context();
 120    struct vg_paint *p;
 121    VGuint rgba = 0;
 122
 123    if (paint == VG_INVALID_HANDLE) {
 124       vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
 125       return rgba;
 126    }
 127
 128    if (!vg_object_is_valid((void*)paint, VG_OBJECT_PAINT)) {
 129       vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
 130       return rgba;
 131    }
 132    p = (struct vg_paint *)paint;
 133
 134    return paint_colori(p);
 135 }
 136
 137 void vegaPaintPattern(VGPaint paint, VGImage pattern)
 138 {
 139    struct vg_context *ctx = vg_current_context();
 140
 141    if (paint == VG_INVALID_HANDLE ||
 142        !vg_context_is_object_valid(ctx, VG_OBJECT_PAINT, (void *)paint)) {
 143       vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
 144       return;
 145    }
 146
 147    if (pattern == VG_INVALID_HANDLE) {
 148       paint_set_type((struct vg_paint*)paint, VG_PAINT_TYPE_COLOR);
 149       return;
 150    }
 151
 152    if (!vg_context_is_object_valid(ctx, VG_OBJECT_IMAGE, (void *)pattern)) {
 153       vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
 154       return;
 155    }
 156
 157
 158    if (!vg_object_is_valid((void*)paint, VG_OBJECT_PAINT) ||
 159        !vg_object_is_valid((void*)pattern, VG_OBJECT_IMAGE)) {
 160       vg_set_error(ctx, VG_BAD_HANDLE_ERROR);
 161       return;
 162    }
 163    paint_set_pattern((struct vg_paint*)paint,
 164                      (struct vg_image*)pattern);
 165 }
 166