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 **************************************************************************/
27 #include "VG/openvg.h"
32 #include "vg_context.h"
33 #include "pipe/p_context.h"
34 #include "pipe/p_inlines.h"
35 #include "pipe/internal/p_winsys_screen.h" /* for winsys->update_buffer */
37 #include "util/u_pack_color.h"
38 #include "util/u_draw_quad.h"
39 #include "util/u_memory.h"
42 #define DISABLE_1_1_MASKING 1
45 * Draw a screen-aligned quadrilateral.
46 * Coords are window coords with y=0=bottom. These coords will be transformed
47 * by the vertex shader and viewport transform.
50 draw_clear_quad(struct vg_context
*st
,
51 float x0
, float y0
, float x1
, float y1
, float z
,
52 const VGfloat color
[4])
54 struct pipe_context
*pipe
= st
->pipe
;
55 struct pipe_buffer
*buf
;
59 st
->clear
.vertices
[0][0][0] = x0
;
60 st
->clear
.vertices
[0][0][1] = y0
;
62 st
->clear
.vertices
[1][0][0] = x1
;
63 st
->clear
.vertices
[1][0][1] = y0
;
65 st
->clear
.vertices
[2][0][0] = x1
;
66 st
->clear
.vertices
[2][0][1] = y1
;
68 st
->clear
.vertices
[3][0][0] = x0
;
69 st
->clear
.vertices
[3][0][1] = y1
;
71 /* same for all verts: */
72 for (i
= 0; i
< 4; i
++) {
73 st
->clear
.vertices
[i
][0][2] = z
;
74 st
->clear
.vertices
[i
][0][3] = 1.0;
75 st
->clear
.vertices
[i
][1][0] = color
[0];
76 st
->clear
.vertices
[i
][1][1] = color
[1];
77 st
->clear
.vertices
[i
][1][2] = color
[2];
78 st
->clear
.vertices
[i
][1][3] = color
[3];
82 /* put vertex data into vbuf */
83 buf
= pipe_user_buffer_create(pipe
->screen
,
85 sizeof(st
->clear
.vertices
));
90 util_draw_vertex_buffer(pipe
, buf
, 0,
91 PIPE_PRIM_TRIANGLE_FAN
,
93 2); /* attribs/vert */
95 pipe_buffer_reference(&buf
, NULL
);
100 * Do vgClear by drawing a quadrilateral.
103 clear_with_quad(struct vg_context
*st
, float x0
, float y0
,
104 float width
, float height
, const VGfloat clear_color
[4])
108 vg_validate_state(st
);
114 printf("%s %f,%f %f,%f\n", __FUNCTION__,
119 if (st
->pipe
->winsys
&& st
->pipe
->winsys
->update_buffer
)
120 st
->pipe
->winsys
->update_buffer( st
->pipe
->winsys
,
123 cso_save_blend(st
->cso_context
);
124 cso_save_rasterizer(st
->cso_context
);
125 cso_save_fragment_shader(st
->cso_context
);
126 cso_save_vertex_shader(st
->cso_context
);
128 /* blend state: RGBA masking */
130 struct pipe_blend_state blend
;
131 memset(&blend
, 0, sizeof(blend
));
132 blend
.rgb_src_factor
= PIPE_BLENDFACTOR_ONE
;
133 blend
.alpha_src_factor
= PIPE_BLENDFACTOR_ONE
;
134 blend
.rgb_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
135 blend
.alpha_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
136 blend
.colormask
|= PIPE_MASK_R
;
137 blend
.colormask
|= PIPE_MASK_G
;
138 blend
.colormask
|= PIPE_MASK_B
;
139 blend
.colormask
|= PIPE_MASK_A
;
140 cso_set_blend(st
->cso_context
, &blend
);
143 cso_set_rasterizer(st
->cso_context
, &st
->clear
.raster
);
145 cso_set_fragment_shader_handle(st
->cso_context
, st
->clear
.fs
);
146 cso_set_vertex_shader_handle(st
->cso_context
, vg_clear_vs(st
));
148 /* draw quad matching scissor rect (XXX verify coord round-off) */
149 draw_clear_quad(st
, x0
, y0
, x1
, y1
, 0, clear_color
);
151 /* Restore pipe state */
152 cso_restore_blend(st
->cso_context
);
153 cso_restore_rasterizer(st
->cso_context
);
154 cso_restore_fragment_shader(st
->cso_context
);
155 cso_restore_vertex_shader(st
->cso_context
);
159 void vgMask(VGHandle mask
, VGMaskOperation operation
,
161 VGint width
, VGint height
)
163 struct vg_context
*ctx
= vg_current_context();
165 if (width
<=0 || height
<= 0) {
166 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
170 if (operation
< VG_CLEAR_MASK
|| operation
> VG_SUBTRACT_MASK
) {
171 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
176 vg_validate_state(ctx
);
178 if (operation
== VG_CLEAR_MASK
) {
179 mask_fill(x
, y
, width
, height
, 0.f
);
180 } else if (operation
== VG_FILL_MASK
) {
181 mask_fill(x
, y
, width
, height
, 1.f
);
182 } else if (vg_object_is_valid((void*)mask
, VG_OBJECT_IMAGE
)) {
183 struct vg_image
*image
= (struct vg_image
*)mask
;
184 mask_using_image(image
, operation
, x
, y
, width
, height
);
185 } else if (vg_object_is_valid((void*)mask
, VG_OBJECT_MASK
)) {
186 #if DISABLE_1_1_MASKING
189 struct vg_mask_layer
*layer
= (struct vg_mask_layer
*)mask
;
190 mask_using_layer(layer
, operation
, x
, y
, width
, height
);
193 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
197 void vgClear(VGint x
, VGint y
,
198 VGint width
, VGint height
)
200 struct vg_context
*ctx
= vg_current_context();
201 struct pipe_framebuffer_state
*fb
;
203 if (width
<= 0 || height
<= 0) {
204 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
208 vg_validate_state(ctx
);
210 debug_printf("Clear [%d, %d, %d, %d] with [%f, %f, %f, %f]\n",
212 ctx
->state
.vg
.clear_color
[0],
213 ctx
->state
.vg
.clear_color
[1],
214 ctx
->state
.vg
.clear_color
[2],
215 ctx
->state
.vg
.clear_color
[3]);
218 fb
= &ctx
->state
.g3d
.fb
;
219 /* check for a whole surface clear */
220 if (!ctx
->state
.vg
.scissoring
&&
221 (x
== 0 && y
== 0 && width
== fb
->width
&& height
== fb
->height
)) {
222 ctx
->pipe
->clear(ctx
->pipe
, PIPE_CLEAR_COLOR
| PIPE_CLEAR_DEPTHSTENCIL
,
223 ctx
->state
.vg
.clear_color
, 1., 0);
225 clear_with_quad(ctx
, x
, y
, width
, height
, ctx
->state
.vg
.clear_color
);
230 #ifdef OPENVG_VERSION_1_1
233 void vgRenderToMask(VGPath path
,
234 VGbitfield paintModes
,
235 VGMaskOperation operation
)
237 struct vg_context
*ctx
= vg_current_context();
239 if (path
== VG_INVALID_HANDLE
) {
240 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
243 if (!paintModes
|| (paintModes
&(~(VG_STROKE_PATH
|VG_FILL_PATH
)))) {
244 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
247 if (operation
< VG_CLEAR_MASK
||
248 operation
> VG_SUBTRACT_MASK
) {
249 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
252 if (!vg_object_is_valid((void*)path
, VG_OBJECT_PATH
)) {
253 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
257 #if DISABLE_1_1_MASKING
261 vg_validate_state(ctx
);
263 mask_render_to((struct path
*)path
, paintModes
, operation
);
266 VGMaskLayer
vgCreateMaskLayer(VGint width
, VGint height
)
268 struct vg_context
*ctx
= vg_current_context();
270 if (width
<= 0 || height
<= 0 ||
271 width
> vgGeti(VG_MAX_IMAGE_WIDTH
) ||
272 height
> vgGeti(VG_MAX_IMAGE_HEIGHT
)) {
273 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
274 return VG_INVALID_HANDLE
;
277 return (VGMaskLayer
)mask_layer_create(width
, height
);
280 void vgDestroyMaskLayer(VGMaskLayer maskLayer
)
282 struct vg_mask_layer
*mask
= 0;
283 struct vg_context
*ctx
= vg_current_context();
285 if (maskLayer
== VG_INVALID_HANDLE
) {
286 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
289 if (!vg_object_is_valid((void*)maskLayer
, VG_OBJECT_MASK
)) {
290 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
294 mask
= (struct vg_mask_layer
*)maskLayer
;
295 mask_layer_destroy(mask
);
298 void vgFillMaskLayer(VGMaskLayer maskLayer
,
300 VGint width
, VGint height
,
303 struct vg_mask_layer
*mask
= 0;
304 struct vg_context
*ctx
= vg_current_context();
306 if (maskLayer
== VG_INVALID_HANDLE
) {
307 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
311 if (value
< 0 || value
> 1) {
312 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
316 if (width
<= 0 || height
<= 0) {
317 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
320 if (x
< 0 || y
< 0 || (x
+ width
) < 0 || (y
+ height
) < 0) {
321 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
325 if (!vg_object_is_valid((void*)maskLayer
, VG_OBJECT_MASK
)) {
326 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
330 mask
= (struct vg_mask_layer
*)maskLayer
;
332 if (x
+ width
> mask_layer_width(mask
) ||
333 y
+ height
> mask_layer_height(mask
)) {
334 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
338 #if DISABLE_1_1_MASKING
341 mask_layer_fill(mask
, x
, y
, width
, height
, value
);
344 void vgCopyMask(VGMaskLayer maskLayer
,
347 VGint width
, VGint height
)
349 struct vg_context
*ctx
= vg_current_context();
350 struct vg_mask_layer
*mask
= 0;
352 if (maskLayer
== VG_INVALID_HANDLE
) {
353 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
356 if (width
<= 0 || height
<= 0) {
357 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
360 if (!vg_object_is_valid((void*)maskLayer
, VG_OBJECT_MASK
)) {
361 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
365 #if DISABLE_1_1_MASKING
369 mask
= (struct vg_mask_layer
*)maskLayer
;
370 mask_copy(mask
, sx
, sy
, dx
, dy
, width
, height
);