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 "util/u_inlines.h"
36 #include "util/u_pack_color.h"
37 #include "util/u_draw_quad.h"
39 #define DISABLE_1_1_MASKING 1
42 * Draw a screen-aligned quadrilateral.
43 * Coords are window coords with y=0=bottom. These coords will be transformed
44 * by the vertex shader and viewport transform.
47 draw_clear_quad(struct vg_context
*st
,
48 float x0
, float y0
, float x1
, float y1
, float z
,
49 const VGfloat color
[4])
51 struct pipe_context
*pipe
= st
->pipe
;
52 struct pipe_resource
*buf
;
56 st
->clear
.vertices
[0][0][0] = x0
;
57 st
->clear
.vertices
[0][0][1] = y0
;
59 st
->clear
.vertices
[1][0][0] = x1
;
60 st
->clear
.vertices
[1][0][1] = y0
;
62 st
->clear
.vertices
[2][0][0] = x1
;
63 st
->clear
.vertices
[2][0][1] = y1
;
65 st
->clear
.vertices
[3][0][0] = x0
;
66 st
->clear
.vertices
[3][0][1] = y1
;
68 /* same for all verts: */
69 for (i
= 0; i
< 4; i
++) {
70 st
->clear
.vertices
[i
][0][2] = z
;
71 st
->clear
.vertices
[i
][0][3] = 1.0;
72 st
->clear
.vertices
[i
][1][0] = color
[0];
73 st
->clear
.vertices
[i
][1][1] = color
[1];
74 st
->clear
.vertices
[i
][1][2] = color
[2];
75 st
->clear
.vertices
[i
][1][3] = color
[3];
79 /* put vertex data into vbuf */
80 buf
= pipe_user_buffer_create(pipe
->screen
,
82 sizeof(st
->clear
.vertices
),
83 PIPE_BIND_VERTEX_BUFFER
);
88 cso_set_vertex_elements(st
->cso_context
, 2, st
->velems
);
90 util_draw_vertex_buffer(pipe
, buf
, 0,
91 PIPE_PRIM_TRIANGLE_FAN
,
93 2); /* attribs/vert */
95 pipe_resource_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 cso_save_blend(st
->cso_context
);
120 cso_save_rasterizer(st
->cso_context
);
121 cso_save_fragment_shader(st
->cso_context
);
122 cso_save_vertex_shader(st
->cso_context
);
124 /* blend state: RGBA masking */
126 struct pipe_blend_state blend
;
127 memset(&blend
, 0, sizeof(blend
));
128 blend
.rt
[0].rgb_src_factor
= PIPE_BLENDFACTOR_ONE
;
129 blend
.rt
[0].alpha_src_factor
= PIPE_BLENDFACTOR_ONE
;
130 blend
.rt
[0].rgb_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
131 blend
.rt
[0].alpha_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
132 blend
.rt
[0].colormask
= PIPE_MASK_RGBA
;
133 cso_set_blend(st
->cso_context
, &blend
);
136 cso_set_rasterizer(st
->cso_context
, &st
->clear
.raster
);
138 cso_set_fragment_shader_handle(st
->cso_context
, st
->clear
.fs
);
139 cso_set_vertex_shader_handle(st
->cso_context
, vg_clear_vs(st
));
141 /* draw quad matching scissor rect (XXX verify coord round-off) */
142 draw_clear_quad(st
, x0
, y0
, x1
, y1
, 0, clear_color
);
144 /* Restore pipe state */
145 cso_restore_blend(st
->cso_context
);
146 cso_restore_rasterizer(st
->cso_context
);
147 cso_restore_fragment_shader(st
->cso_context
);
148 cso_restore_vertex_shader(st
->cso_context
);
152 void vegaMask(VGHandle mask
, VGMaskOperation operation
,
154 VGint width
, VGint height
)
156 struct vg_context
*ctx
= vg_current_context();
158 if (width
<=0 || height
<= 0) {
159 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
163 if (operation
< VG_CLEAR_MASK
|| operation
> VG_SUBTRACT_MASK
) {
164 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
169 vg_validate_state(ctx
);
171 if (operation
== VG_CLEAR_MASK
) {
172 mask_fill(x
, y
, width
, height
, 0.f
);
173 } else if (operation
== VG_FILL_MASK
) {
174 mask_fill(x
, y
, width
, height
, 1.f
);
175 } else if (vg_object_is_valid((void*)mask
, VG_OBJECT_IMAGE
)) {
176 struct vg_image
*image
= (struct vg_image
*)mask
;
177 mask_using_image(image
, operation
, x
, y
, width
, height
);
178 } else if (vg_object_is_valid((void*)mask
, VG_OBJECT_MASK
)) {
179 #if DISABLE_1_1_MASKING
182 struct vg_mask_layer
*layer
= (struct vg_mask_layer
*)mask
;
183 mask_using_layer(layer
, operation
, x
, y
, width
, height
);
186 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
190 void vegaClear(VGint x
, VGint y
,
191 VGint width
, VGint height
)
193 struct vg_context
*ctx
= vg_current_context();
194 struct pipe_framebuffer_state
*fb
;
196 if (width
<= 0 || height
<= 0) {
197 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
201 vg_validate_state(ctx
);
203 debug_printf("Clear [%d, %d, %d, %d] with [%f, %f, %f, %f]\n",
205 ctx
->state
.vg
.clear_color
[0],
206 ctx
->state
.vg
.clear_color
[1],
207 ctx
->state
.vg
.clear_color
[2],
208 ctx
->state
.vg
.clear_color
[3]);
211 fb
= &ctx
->state
.g3d
.fb
;
212 /* check for a whole surface clear */
213 if (!ctx
->state
.vg
.scissoring
&&
214 (x
== 0 && y
== 0 && width
== fb
->width
&& height
== fb
->height
)) {
215 ctx
->pipe
->clear(ctx
->pipe
, PIPE_CLEAR_COLOR
| PIPE_CLEAR_DEPTHSTENCIL
,
216 ctx
->state
.vg
.clear_color
, 1., 0);
218 clear_with_quad(ctx
, x
, y
, width
, height
, ctx
->state
.vg
.clear_color
);
223 #ifdef OPENVG_VERSION_1_1
226 void vegaRenderToMask(VGPath path
,
227 VGbitfield paintModes
,
228 VGMaskOperation operation
)
230 struct vg_context
*ctx
= vg_current_context();
232 if (path
== VG_INVALID_HANDLE
) {
233 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
236 if (!paintModes
|| (paintModes
&(~(VG_STROKE_PATH
|VG_FILL_PATH
)))) {
237 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
240 if (operation
< VG_CLEAR_MASK
||
241 operation
> VG_SUBTRACT_MASK
) {
242 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
245 if (!vg_object_is_valid((void*)path
, VG_OBJECT_PATH
)) {
246 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
250 #if DISABLE_1_1_MASKING
254 vg_validate_state(ctx
);
256 mask_render_to((struct path
*)path
, paintModes
, operation
);
259 VGMaskLayer
vegaCreateMaskLayer(VGint width
, VGint height
)
261 struct vg_context
*ctx
= vg_current_context();
263 if (width
<= 0 || height
<= 0 ||
264 width
> vgGeti(VG_MAX_IMAGE_WIDTH
) ||
265 height
> vgGeti(VG_MAX_IMAGE_HEIGHT
)) {
266 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
267 return VG_INVALID_HANDLE
;
270 return (VGMaskLayer
)mask_layer_create(width
, height
);
273 void vegaDestroyMaskLayer(VGMaskLayer maskLayer
)
275 struct vg_mask_layer
*mask
= 0;
276 struct vg_context
*ctx
= vg_current_context();
278 if (maskLayer
== VG_INVALID_HANDLE
) {
279 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
282 if (!vg_object_is_valid((void*)maskLayer
, VG_OBJECT_MASK
)) {
283 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
287 mask
= (struct vg_mask_layer
*)maskLayer
;
288 mask_layer_destroy(mask
);
291 void vegaFillMaskLayer(VGMaskLayer maskLayer
,
293 VGint width
, VGint height
,
296 struct vg_mask_layer
*mask
= 0;
297 struct vg_context
*ctx
= vg_current_context();
299 if (maskLayer
== VG_INVALID_HANDLE
) {
300 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
304 if (value
< 0 || value
> 1) {
305 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
309 if (width
<= 0 || height
<= 0) {
310 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
313 if (x
< 0 || y
< 0 || (x
+ width
) < 0 || (y
+ height
) < 0) {
314 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
318 if (!vg_object_is_valid((void*)maskLayer
, VG_OBJECT_MASK
)) {
319 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
323 mask
= (struct vg_mask_layer
*)maskLayer
;
325 if (x
+ width
> mask_layer_width(mask
) ||
326 y
+ height
> mask_layer_height(mask
)) {
327 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
331 #if DISABLE_1_1_MASKING
334 mask_layer_fill(mask
, x
, y
, width
, height
, value
);
337 void vegaCopyMask(VGMaskLayer maskLayer
,
340 VGint width
, VGint height
)
342 struct vg_context
*ctx
= vg_current_context();
343 struct vg_mask_layer
*mask
= 0;
345 if (maskLayer
== VG_INVALID_HANDLE
) {
346 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
349 if (width
<= 0 || height
<= 0) {
350 vg_set_error(ctx
, VG_ILLEGAL_ARGUMENT_ERROR
);
353 if (!vg_object_is_valid((void*)maskLayer
, VG_OBJECT_MASK
)) {
354 vg_set_error(ctx
, VG_BAD_HANDLE_ERROR
);
358 #if DISABLE_1_1_MASKING
362 mask
= (struct vg_mask_layer
*)maskLayer
;
363 mask_copy(mask
, sx
, sy
, dx
, dy
, width
, height
);