1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
|
/**************************************************************************
*
* 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.
*
**************************************************************************/
#ifndef VG_CONTEXT_H
#define VG_CONTEXT_H
#include "vg_state.h"
#include "pipe/p_format.h"
#include "pipe/p_state.h"
#include "util/u_pointer.h"
#include "util/u_math.h"
#include "state_tracker/st_api.h"
#include "cso_cache/cso_hash.h"
#include "cso_cache/cso_context.h"
struct renderer;
struct shaders_cache;
struct shader;
struct vg_shader;
struct mapi_table;
struct st_renderbuffer {
enum pipe_format format;
struct pipe_surface *surface;
struct pipe_resource *texture;
VGint width, height;
};
struct st_framebuffer {
VGint width, height;
struct st_renderbuffer *strb;
struct st_renderbuffer *dsrb;
struct pipe_sampler_view *surface_mask_view;
struct pipe_sampler_view *blend_texture_view;
struct st_framebuffer_iface *iface;
enum st_attachment_type strb_att;
void *privateData;
};
enum vg_object_type {
VG_OBJECT_UNKNOWN = 0,
VG_OBJECT_PAINT,
VG_OBJECT_IMAGE,
VG_OBJECT_MASK,
VG_OBJECT_FONT,
VG_OBJECT_PATH,
VG_OBJECT_LAST
};
enum dirty_state {
BLEND_DIRTY = 1 << 0,
FRAMEBUFFER_DIRTY = 1 << 1,
DEPTH_STENCIL_DIRTY = 1 << 2,
PAINT_DIRTY = 1 << 3,
ALL_DIRTY = BLEND_DIRTY |
FRAMEBUFFER_DIRTY |
DEPTH_STENCIL_DIRTY |
PAINT_DIRTY
};
struct vg_context
{
struct st_context_iface iface;
struct mapi_table *dispatch;
struct pipe_context *pipe;
enum pipe_format ds_format;
struct {
struct vg_state vg;
VGbitfield dirty;
} state;
VGErrorCode _error;
struct st_framebuffer *draw_buffer;
int32_t draw_buffer_invalid;
struct cso_hash *owned_objects[VG_OBJECT_LAST];
struct {
struct pipe_resource *cbuf;
struct pipe_sampler_state sampler;
struct vg_shader *union_fs;
struct vg_shader *intersect_fs;
struct vg_shader *subtract_fs;
struct vg_shader *set_fs;
} mask;
struct cso_context *cso_context;
struct renderer *renderer;
struct shaders_cache *sc;
struct shader *shader;
struct pipe_sampler_state blend_sampler;
struct vg_paint *default_paint;
struct blit_state *blit;
};
/**
* Base class for VG objects like paths, images, fonts.
*/
struct vg_object {
enum vg_object_type type;
VGHandle handle;
struct vg_context *ctx;
};
void vg_init_object(struct vg_object *obj, struct vg_context *ctx, enum vg_object_type type);
void vg_free_object(struct vg_object *obj);
VGboolean vg_object_is_valid(VGHandle object, enum vg_object_type type);
struct vg_context *vg_create_context(struct pipe_context *pipe,
const void *visual,
struct vg_context *share);
void vg_destroy_context(struct vg_context *ctx);
struct vg_context *vg_current_context(void);
void vg_set_current_context(struct vg_context *ctx);
VGboolean vg_context_is_object_valid(struct vg_context *ctx,
enum vg_object_type type,
VGHandle object);
void vg_context_add_object(struct vg_context *ctx,
enum vg_object_type type,
void *ptr);
void vg_context_remove_object(struct vg_context *ctx,
enum vg_object_type type,
void *ptr);
void vg_validate_state(struct vg_context *ctx);
void vg_set_error(struct vg_context *ctx,
VGErrorCode code);
struct pipe_sampler_view *vg_prepare_blend_surface(struct vg_context *ctx);
struct pipe_sampler_view *vg_prepare_blend_surface_from_mask(struct vg_context *ctx);
struct pipe_sampler_view *vg_get_surface_mask(struct vg_context *ctx);
VGboolean vg_get_paint_matrix(struct vg_context *ctx,
const struct matrix *paint_to_user,
const struct matrix *user_to_surface,
struct matrix *mat);
static INLINE VGboolean is_aligned_to(const void *ptr, VGbyte alignment)
{
void *aligned = align_pointer(ptr, alignment);
return (ptr == aligned) ? VG_TRUE : VG_FALSE;
}
static INLINE VGboolean is_aligned(const void *ptr)
{
return is_aligned_to(ptr, 4);
}
static INLINE void vg_shift_rectx(VGfloat coords[4],
const VGfloat *bounds,
const VGfloat shift)
{
coords[0] += shift;
coords[2] -= shift;
if (bounds) {
coords[2] = MIN2(coords[2], bounds[2]);
/* bound x/y + width/height */
if ((coords[0] + coords[2]) > (bounds[0] + bounds[2])) {
coords[2] = (bounds[0] + bounds[2]) - coords[0];
}
}
}
static INLINE void vg_shift_recty(VGfloat coords[4],
const VGfloat *bounds,
const VGfloat shift)
{
coords[1] += shift;
coords[3] -= shift;
if (bounds) {
coords[3] = MIN2(coords[3], bounds[3]);
if ((coords[1] + coords[3]) > (bounds[1] + bounds[3])) {
coords[3] = (bounds[1] + bounds[3]) - coords[1];
}
}
}
static INLINE void vg_bound_rect(VGfloat coords[4],
const VGfloat bounds[4],
VGfloat shift[4])
{
/* if outside the bounds */
if (coords[0] > (bounds[0] + bounds[2]) ||
coords[1] > (bounds[1] + bounds[3]) ||
(coords[0] + coords[2]) < bounds[0] ||
(coords[1] + coords[3]) < bounds[1]) {
coords[0] = 0.f;
coords[1] = 0.f;
coords[2] = 0.f;
coords[3] = 0.f;
shift[0] = 0.f;
shift[1] = 0.f;
return;
}
/* bound x */
if (coords[0] < bounds[0]) {
shift[0] = bounds[0] - coords[0];
coords[2] -= shift[0];
coords[0] = bounds[0];
} else
shift[0] = 0.f;
/* bound y */
if (coords[1] < bounds[1]) {
shift[1] = bounds[1] - coords[1];
coords[3] -= shift[1];
coords[1] = bounds[1];
} else
shift[1] = 0.f;
shift[2] = bounds[2] - coords[2];
shift[3] = bounds[3] - coords[3];
/* bound width/height */
coords[2] = MIN2(coords[2], bounds[2]);
coords[3] = MIN2(coords[3], bounds[3]);
/* bound x/y + width/height */
if ((coords[0] + coords[2]) > (bounds[0] + bounds[2])) {
coords[2] = (bounds[0] + bounds[2]) - coords[0];
}
if ((coords[1] + coords[3]) > (bounds[1] + bounds[3])) {
coords[3] = (bounds[1] + bounds[3]) - coords[1];
}
/* if outside the bounds */
if ((coords[0] + coords[2]) < bounds[0] ||
(coords[1] + coords[3]) < bounds[1]) {
coords[0] = 0.f;
coords[1] = 0.f;
coords[2] = 0.f;
coords[3] = 0.f;
return;
}
}
#endif
|
