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"
37 #include "cso_cache/cso_hash.h"
38 #include "cso_cache/cso_context.h"
45 struct st_renderbuffer
{
46 enum pipe_format format
;
47 struct pipe_surface
*surface
;
48 struct pipe_texture
*texture
;
52 struct st_framebuffer
{
54 struct st_renderbuffer
*strb
;
55 struct st_renderbuffer
*dsrb
;
57 struct pipe_texture
*alpha_mask
;
59 struct pipe_texture
*blend_texture
;
65 VG_OBJECT_UNKNOWN
= 0,
77 RASTERIZER_DIRTY
= 1<<2,
78 VIEWPORT_DIRTY
= 1<<3,
80 DEPTH_STENCIL_DIRTY
= 1<<5,
81 ALL_DIRTY
= BLEND_DIRTY
| RASTERIZER_DIRTY
|
82 VIEWPORT_DIRTY
| VS_DIRTY
| DEPTH_STENCIL_DIRTY
87 struct pipe_context
*pipe
;
92 struct pipe_blend_state blend
;
93 struct pipe_rasterizer_state rasterizer
;
94 struct pipe_shader_state vs_state
;
95 struct pipe_depth_stencil_alpha_state dsa
;
96 struct pipe_framebuffer_state fb
;
103 struct st_framebuffer
*draw_buffer
;
105 struct cso_hash
*owned_objects
[VG_OBJECT_LAST
];
108 struct pipe_shader_state vert_shader
;
109 struct pipe_shader_state frag_shader
;
110 struct pipe_rasterizer_state raster
;
112 float vertices
[4][2][4]; /**< vertex pos + color */
116 struct pipe_buffer
*cbuf
;
117 struct pipe_sampler_state sampler
;
119 struct vg_shader
*union_fs
;
120 struct vg_shader
*intersect_fs
;
121 struct vg_shader
*subtract_fs
;
122 struct vg_shader
*set_fs
;
125 struct vg_shader
*pass_through_depth_fs
;
127 struct cso_context
*cso_context
;
129 struct pipe_buffer
*stencil_quad
;
130 VGfloat stencil_vertices
[4][2][4];
132 struct renderer
*renderer
;
133 struct shaders_cache
*sc
;
134 struct shader
*shader
;
136 struct pipe_sampler_state blend_sampler
;
138 struct pipe_buffer
*buffer
;
139 void *color_matrix_fs
;
141 struct vg_paint
*default_paint
;
143 struct blit_state
*blit
;
145 struct vg_shader
*plain_vs
;
146 struct vg_shader
*clear_vs
;
147 struct vg_shader
*texture_vs
;
148 struct pipe_buffer
*vs_const_buffer
;
152 enum vg_object_type type
;
153 struct vg_context
*ctx
;
155 void vg_init_object(struct vg_object
*obj
, struct vg_context
*ctx
, enum vg_object_type type
);
156 VGboolean
vg_object_is_valid(void *ptr
, enum vg_object_type type
);
158 struct vg_context
*vg_create_context(struct pipe_context
*pipe
,
160 struct vg_context
*share
);
161 void vg_destroy_context(struct vg_context
*ctx
);
162 struct vg_context
*vg_current_context(void);
163 void vg_set_current_context(struct vg_context
*ctx
);
165 VGboolean
vg_context_is_object_valid(struct vg_context
*ctx
,
166 enum vg_object_type type
,
168 void vg_context_add_object(struct vg_context
*ctx
,
169 enum vg_object_type type
,
171 void vg_context_remove_object(struct vg_context
*ctx
,
172 enum vg_object_type type
,
175 void vg_validate_state(struct vg_context
*ctx
);
177 void vg_set_error(struct vg_context
*ctx
,
180 void vg_prepare_blend_surface(struct vg_context
*ctx
);
181 void vg_prepare_blend_surface_from_mask(struct vg_context
*ctx
);
184 static INLINE VGboolean
is_aligned_to(const void *ptr
, VGbyte alignment
)
186 void *aligned
= align_pointer(ptr
, alignment
);
187 return (ptr
== aligned
) ? VG_TRUE
: VG_FALSE
;
190 static INLINE VGboolean
is_aligned(const void *ptr
)
192 return is_aligned_to(ptr
, 4);
195 static INLINE
void vg_shift_rectx(VGfloat coords
[4],
196 const VGfloat
*bounds
,
202 coords
[2] = MIN2(coords
[2], bounds
[2]);
203 /* bound x/y + width/height */
204 if ((coords
[0] + coords
[2]) > (bounds
[0] + bounds
[2])) {
205 coords
[2] = (bounds
[0] + bounds
[2]) - coords
[0];
210 static INLINE
void vg_shift_recty(VGfloat coords
[4],
211 const VGfloat
*bounds
,
217 coords
[3] = MIN2(coords
[3], bounds
[3]);
218 if ((coords
[1] + coords
[3]) > (bounds
[1] + bounds
[3])) {
219 coords
[3] = (bounds
[1] + bounds
[3]) - coords
[1];
224 static INLINE
void vg_bound_rect(VGfloat coords
[4],
225 const VGfloat bounds
[4],
228 /* if outside the bounds */
229 if (coords
[0] > (bounds
[0] + bounds
[2]) ||
230 coords
[1] > (bounds
[1] + bounds
[3]) ||
231 (coords
[0] + coords
[2]) < bounds
[0] ||
232 (coords
[1] + coords
[3]) < bounds
[1]) {
243 if (coords
[0] < bounds
[0]) {
244 shift
[0] = bounds
[0] - coords
[0];
245 coords
[2] -= shift
[0];
246 coords
[0] = bounds
[0];
251 if (coords
[1] < bounds
[1]) {
252 shift
[1] = bounds
[1] - coords
[1];
253 coords
[3] -= shift
[1];
254 coords
[1] = bounds
[1];
258 shift
[2] = bounds
[2] - coords
[2];
259 shift
[3] = bounds
[3] - coords
[3];
260 /* bound width/height */
261 coords
[2] = MIN2(coords
[2], bounds
[2]);
262 coords
[3] = MIN2(coords
[3], bounds
[3]);
264 /* bound x/y + width/height */
265 if ((coords
[0] + coords
[2]) > (bounds
[0] + bounds
[2])) {
266 coords
[2] = (bounds
[0] + bounds
[2]) - coords
[0];
268 if ((coords
[1] + coords
[3]) > (bounds
[1] + bounds
[3])) {
269 coords
[3] = (bounds
[1] + bounds
[3]) - coords
[1];
272 /* if outside the bounds */
273 if ((coords
[0] + coords
[2]) < bounds
[0] ||
274 (coords
[1] + coords
[3]) < bounds
[1]) {
283 void *vg_plain_vs(struct vg_context
*ctx
);
284 void *vg_clear_vs(struct vg_context
*ctx
);
285 void *vg_texture_vs(struct vg_context
*ctx
);
290 void vg_set_viewport(struct vg_context
*ctx
, VegaOrientation orientation
);