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;
71 VG_OBJECT_UNKNOWN = 0,
82 FRAMEBUFFER_DIRTY = 1 << 1,
83 DEPTH_STENCIL_DIRTY = 1 << 2,
86 ALL_DIRTY = BLEND_DIRTY |
94 struct st_context_iface iface;
95 struct mapi_table *dispatch;
97 struct pipe_context *pipe;
98 enum pipe_format ds_format;
107 struct st_framebuffer *draw_buffer;
108 int32_t draw_buffer_invalid;
110 struct cso_hash *owned_objects[VG_OBJECT_LAST];
113 struct pipe_resource *cbuf;
114 struct pipe_sampler_state sampler;
116 struct vg_shader *union_fs;
117 struct vg_shader *intersect_fs;
118 struct vg_shader *subtract_fs;
119 struct vg_shader *set_fs;
122 struct cso_context *cso_context;
124 struct renderer *renderer;
125 struct shaders_cache *sc;
126 struct shader *shader;
128 struct pipe_sampler_state blend_sampler;
129 struct vg_paint *default_paint;
131 struct blit_state *blit;
136 * Base class for VG objects like paths, images, fonts.
139 enum vg_object_type type;
141 struct vg_context *ctx;
145 void vg_init_object(struct vg_object *obj, struct vg_context *ctx, enum vg_object_type type);
146 void vg_free_object(struct vg_object *obj);
148 VGboolean vg_object_is_valid(VGHandle object, enum vg_object_type type);
150 struct vg_context *vg_create_context(struct pipe_context *pipe,
152 struct vg_context *share);
153 void vg_destroy_context(struct vg_context *ctx);
154 struct vg_context *vg_current_context(void);
155 void vg_set_current_context(struct vg_context *ctx);
157 VGboolean vg_context_is_object_valid(struct vg_context *ctx,
158 enum vg_object_type type,
160 void vg_context_add_object(struct vg_context *ctx,
161 enum vg_object_type type,
163 void vg_context_remove_object(struct vg_context *ctx,
164 enum vg_object_type type,
167 void vg_validate_state(struct vg_context *ctx);
169 void vg_set_error(struct vg_context *ctx,
172 struct pipe_sampler_view *vg_prepare_blend_surface(struct vg_context *ctx);
173 struct pipe_sampler_view *vg_prepare_blend_surface_from_mask(struct vg_context *ctx);
175 struct pipe_sampler_view *vg_get_surface_mask(struct vg_context *ctx);
177 VGboolean vg_get_paint_matrix(struct vg_context *ctx,
178 const struct matrix *paint_to_user,
179 const struct matrix *user_to_surface,
182 static INLINE VGboolean is_aligned_to(const void *ptr, VGbyte alignment)
184 void *aligned = align_pointer(ptr, alignment);
185 return (ptr == aligned) ? VG_TRUE : VG_FALSE;
188 static INLINE VGboolean is_aligned(const void *ptr)
190 return is_aligned_to(ptr, 4);
193 static INLINE void vg_shift_rectx(VGfloat coords[4],
194 const VGfloat *bounds,
200 coords[2] = MIN2(coords[2], bounds[2]);
201 /* bound x/y + width/height */
202 if ((coords[0] + coords[2]) > (bounds[0] + bounds[2])) {
203 coords[2] = (bounds[0] + bounds[2]) - coords[0];
208 static INLINE void vg_shift_recty(VGfloat coords[4],
209 const VGfloat *bounds,
215 coords[3] = MIN2(coords[3], bounds[3]);
216 if ((coords[1] + coords[3]) > (bounds[1] + bounds[3])) {
217 coords[3] = (bounds[1] + bounds[3]) - coords[1];
222 static INLINE void vg_bound_rect(VGfloat coords[4],
223 const VGfloat bounds[4],
226 /* if outside the bounds */
227 if (coords[0] > (bounds[0] + bounds[2]) ||
228 coords[1] > (bounds[1] + bounds[3]) ||
229 (coords[0] + coords[2]) < bounds[0] ||
230 (coords[1] + coords[3]) < bounds[1]) {
241 if (coords[0] < bounds[0]) {
242 shift[0] = bounds[0] - coords[0];
243 coords[2] -= shift[0];
244 coords[0] = bounds[0];
249 if (coords[1] < bounds[1]) {
250 shift[1] = bounds[1] - coords[1];
251 coords[3] -= shift[1];
252 coords[1] = bounds[1];
256 shift[2] = bounds[2] - coords[2];
257 shift[3] = bounds[3] - coords[3];
258 /* bound width/height */
259 coords[2] = MIN2(coords[2], bounds[2]);
260 coords[3] = MIN2(coords[3], bounds[3]);
262 /* bound x/y + width/height */
263 if ((coords[0] + coords[2]) > (bounds[0] + bounds[2])) {
264 coords[2] = (bounds[0] + bounds[2]) - coords[0];
266 if ((coords[1] + coords[3]) > (bounds[1] + bounds[3])) {
267 coords[3] = (bounds[1] + bounds[3]) - coords[1];
270 /* if outside the bounds */
271 if ((coords[0] + coords[2]) < bounds[0] ||
272 (coords[1] + coords[3]) < bounds[1]) {