1 /**************************************************************************
3 * Copyright 2009 VMware, Inc. All Rights Reserved.
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:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
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.
25 **************************************************************************/
32 #include "pipe/p_format.h"
33 #include "pipe/p_state.h"
34 #include "util/u_pointer.h"
35 #include "util/u_math.h"
36 #include "state_tracker/st_api.h"
38 #include "cso_cache/cso_hash.h"
39 #include "cso_cache/cso_context.h"
47 struct st_renderbuffer
{
48 enum pipe_format format
;
49 struct pipe_surface
*surface
;
50 struct pipe_resource
*texture
;
54 struct st_framebuffer
{
56 struct st_renderbuffer
*strb
;
57 struct st_renderbuffer
*dsrb
;
59 struct pipe_sampler_view
*surface_mask_view
;
61 struct pipe_sampler_view
*blend_texture_view
;
64 struct st_framebuffer_iface
*iface
;
65 enum st_attachment_type strb_att
;
73 VG_OBJECT_UNKNOWN
= 0,
84 FRAMEBUFFER_DIRTY
= 1 << 1,
85 DEPTH_STENCIL_DIRTY
= 1 << 2,
88 ALL_DIRTY
= BLEND_DIRTY
|
96 struct st_context_iface iface
;
97 struct mapi_table
*dispatch
;
99 struct pipe_context
*pipe
;
100 enum pipe_format ds_format
;
109 struct st_framebuffer
*draw_buffer
;
111 struct cso_hash
*owned_objects
[VG_OBJECT_LAST
];
114 struct pipe_resource
*cbuf
;
115 struct pipe_sampler_state sampler
;
117 struct vg_shader
*union_fs
;
118 struct vg_shader
*intersect_fs
;
119 struct vg_shader
*subtract_fs
;
120 struct vg_shader
*set_fs
;
123 struct cso_context
*cso_context
;
125 struct renderer
*renderer
;
126 struct shaders_cache
*sc
;
127 struct shader
*shader
;
129 struct pipe_sampler_state blend_sampler
;
130 struct vg_paint
*default_paint
;
132 struct blit_state
*blit
;
139 * Base class for VG objects like paths, images, fonts.
142 enum vg_object_type type
;
144 struct vg_context
*ctx
;
148 void vg_init_object(struct vg_object
*obj
, struct vg_context
*ctx
, enum vg_object_type type
);
149 void vg_free_object(struct vg_object
*obj
);
151 VGboolean
vg_object_is_valid(VGHandle object
, enum vg_object_type type
);
153 struct vg_context
*vg_create_context(struct pipe_context
*pipe
,
155 struct vg_context
*share
);
156 void vg_destroy_context(struct vg_context
*ctx
);
157 struct vg_context
*vg_current_context(void);
158 void vg_set_current_context(struct vg_context
*ctx
);
160 VGboolean
vg_context_is_object_valid(struct vg_context
*ctx
,
161 enum vg_object_type type
,
163 void vg_context_add_object(struct vg_context
*ctx
,
164 enum vg_object_type type
,
166 void vg_context_remove_object(struct vg_context
*ctx
,
167 enum vg_object_type type
,
170 void vg_validate_state(struct vg_context
*ctx
);
172 void vg_set_error(struct vg_context
*ctx
,
175 struct pipe_sampler_view
*vg_prepare_blend_surface(struct vg_context
*ctx
);
176 struct pipe_sampler_view
*vg_prepare_blend_surface_from_mask(struct vg_context
*ctx
);
178 struct pipe_sampler_view
*vg_get_surface_mask(struct vg_context
*ctx
);
180 VGboolean
vg_get_paint_matrix(struct vg_context
*ctx
,
181 const struct matrix
*paint_to_user
,
182 const struct matrix
*user_to_surface
,
185 static INLINE VGboolean
is_aligned_to(const void *ptr
, VGbyte alignment
)
187 void *aligned
= align_pointer(ptr
, alignment
);
188 return (ptr
== aligned
) ? VG_TRUE
: VG_FALSE
;
191 static INLINE VGboolean
is_aligned(const void *ptr
)
193 return is_aligned_to(ptr
, 4);
196 static INLINE
void vg_shift_rectx(VGfloat coords
[4],
197 const VGfloat
*bounds
,
203 coords
[2] = MIN2(coords
[2], bounds
[2]);
204 /* bound x/y + width/height */
205 if ((coords
[0] + coords
[2]) > (bounds
[0] + bounds
[2])) {
206 coords
[2] = (bounds
[0] + bounds
[2]) - coords
[0];
211 static INLINE
void vg_shift_recty(VGfloat coords
[4],
212 const VGfloat
*bounds
,
218 coords
[3] = MIN2(coords
[3], bounds
[3]);
219 if ((coords
[1] + coords
[3]) > (bounds
[1] + bounds
[3])) {
220 coords
[3] = (bounds
[1] + bounds
[3]) - coords
[1];
225 static INLINE
void vg_bound_rect(VGfloat coords
[4],
226 const VGfloat bounds
[4],
229 /* if outside the bounds */
230 if (coords
[0] > (bounds
[0] + bounds
[2]) ||
231 coords
[1] > (bounds
[1] + bounds
[3]) ||
232 (coords
[0] + coords
[2]) < bounds
[0] ||
233 (coords
[1] + coords
[3]) < bounds
[1]) {
244 if (coords
[0] < bounds
[0]) {
245 shift
[0] = bounds
[0] - coords
[0];
246 coords
[2] -= shift
[0];
247 coords
[0] = bounds
[0];
252 if (coords
[1] < bounds
[1]) {
253 shift
[1] = bounds
[1] - coords
[1];
254 coords
[3] -= shift
[1];
255 coords
[1] = bounds
[1];
259 shift
[2] = bounds
[2] - coords
[2];
260 shift
[3] = bounds
[3] - coords
[3];
261 /* bound width/height */
262 coords
[2] = MIN2(coords
[2], bounds
[2]);
263 coords
[3] = MIN2(coords
[3], bounds
[3]);
265 /* bound x/y + width/height */
266 if ((coords
[0] + coords
[2]) > (bounds
[0] + bounds
[2])) {
267 coords
[2] = (bounds
[0] + bounds
[2]) - coords
[0];
269 if ((coords
[1] + coords
[3]) > (bounds
[1] + bounds
[3])) {
270 coords
[3] = (bounds
[1] + bounds
[3]) - coords
[1];
273 /* if outside the bounds */
274 if ((coords
[0] + coords
[2]) < bounds
[0] ||
275 (coords
[1] + coords
[3]) < bounds
[1]) {