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 **************************************************************************/
31 #include "shaders_cache.h"
35 #include "pipe/p_context.h"
36 #include "pipe/p_screen.h"
37 #include "util/u_inlines.h"
38 #include "util/u_format.h"
39 #include "util/u_memory.h"
40 #include "util/u_surface.h"
41 #include "util/u_sampler.h"
43 struct vg_mask_layer
{
44 struct vg_object base
;
49 struct pipe_sampler_view
*sampler_view
;
52 static INLINE VGboolean
53 intersect_rectangles(VGint dwidth
, VGint dheight
,
54 VGint swidth
, VGint sheight
,
56 VGint twidth
, VGint theight
,
60 if (tx
+ twidth
<= 0 || tx
>= dwidth
)
62 if (ty
+ theight
<= 0 || ty
>= dheight
)
74 location
[2] = MIN2(tx
+ swidth
, MIN2(dwidth
, tx
+ twidth
));
75 offsets
[2] = location
[2];
77 offsets
[2] = MIN2(twidth
, MIN2(dwidth
- tx
, swidth
));
78 location
[2] = offsets
[2];
85 location
[3] = MIN2(ty
+ sheight
, MIN2(dheight
, ty
+ theight
));
86 offsets
[3] = location
[3];
88 offsets
[3] = MIN2(theight
, MIN2(dheight
- ty
, sheight
));
89 location
[3] = offsets
[3];
96 static void read_alpha_mask(void * data
, VGint dataStride
,
97 VGImageFormat dataFormat
,
99 VGint width
, VGint height
)
101 struct vg_context
*ctx
= vg_current_context();
102 struct pipe_context
*pipe
= ctx
->pipe
;
104 struct st_framebuffer
*stfb
= ctx
->draw_buffer
;
105 struct st_renderbuffer
*strb
= stfb
->alpha_mask
;
107 VGfloat temp
[VEGA_MAX_IMAGE_WIDTH
][4];
108 VGfloat
*df
= (VGfloat
*)temp
;
109 VGint y
= (stfb
->height
- sy
) - 1, yStep
= -1;
111 VGubyte
*dst
= (VGubyte
*)data
;
112 VGint xoffset
= 0, yoffset
= 0;
114 /* make sure rendering has completed */
115 pipe
->flush(pipe
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
118 xoffset
*= _vega_size_for_format(dataFormat
);
126 y
= (stfb
->height
- sy
) - 1;
127 yoffset
*= dataStride
;
131 struct pipe_surface
*surf
;
133 surf
= pipe
->create_surface(pipe
, strb
->texture
, 0, 0, 0,
134 PIPE_BIND_TRANSFER_READ
);
136 /* Do a row at a time to flip image data vertically */
137 for (i
= 0; i
< height
; i
++) {
139 debug_printf("%d-%d == %d\n", sy
, height
, y
);
141 pipe_get_tile_rgba(surf
, sx
, y
, width
, 1, df
);
143 _vega_pack_rgba_span_float(ctx
, width
, temp
, dataFormat
,
144 dst
+ yoffset
+ xoffset
);
148 pipe_surface_reference(&surf
, NULL
);
152 void save_alpha_to_file(const char *filename
)
154 struct vg_context
*ctx
= vg_current_context();
155 struct st_framebuffer
*stfb
= ctx
->draw_buffer
;
159 data
= malloc(sizeof(int) * stfb
->width
* stfb
->height
);
160 read_alpha_mask(data
, stfb
->width
* sizeof(int),
162 0, 0, stfb
->width
, stfb
->height
);
163 fprintf(stderr
, "/*---------- start */\n");
164 fprintf(stderr
, "const int image_width = %d;\n",
166 fprintf(stderr
, "const int image_height = %d;\n",
168 fprintf(stderr
, "const int image_data = {\n");
169 for (i
= 0; i
< stfb
->height
; ++i
) {
170 for (j
= 0; j
< stfb
->width
; ++j
) {
171 int rgba
= data
[i
* stfb
->height
+ j
];
174 argb
|= ((rgba
& 0xff) << 24);
175 fprintf(stderr
, "0x%x, ", argb
);
177 fprintf(stderr
, "\n");
179 fprintf(stderr
, "};\n");
180 fprintf(stderr
, "/*---------- end */\n");
184 /* setup mask shader */
185 static void *setup_mask_operation(VGMaskOperation operation
)
187 struct vg_context
*ctx
= vg_current_context();
191 case VG_UNION_MASK
: {
192 if (!ctx
->mask
.union_fs
) {
193 ctx
->mask
.union_fs
= shader_create_from_text(ctx
->pipe
,
196 PIPE_SHADER_FRAGMENT
);
198 shader
= ctx
->mask
.union_fs
->driver
;
201 case VG_INTERSECT_MASK
: {
202 if (!ctx
->mask
.intersect_fs
) {
203 ctx
->mask
.intersect_fs
= shader_create_from_text(ctx
->pipe
,
206 PIPE_SHADER_FRAGMENT
);
208 shader
= ctx
->mask
.intersect_fs
->driver
;
211 case VG_SUBTRACT_MASK
: {
212 if (!ctx
->mask
.subtract_fs
) {
213 ctx
->mask
.subtract_fs
= shader_create_from_text(ctx
->pipe
,
216 PIPE_SHADER_FRAGMENT
);
218 shader
= ctx
->mask
.subtract_fs
->driver
;
222 if (!ctx
->mask
.set_fs
) {
223 ctx
->mask
.set_fs
= shader_create_from_text(ctx
->pipe
,
226 PIPE_SHADER_FRAGMENT
);
228 shader
= ctx
->mask
.set_fs
->driver
;
239 static void mask_resource_fill(struct pipe_resource
*dst
,
240 int x
, int y
, int width
, int height
,
243 struct vg_context
*ctx
= vg_current_context();
244 VGfloat fs_consts
[12] = {
245 0.0f
, 0.0f
, 0.0f
, 0.0f
, /* not used */
246 0.0f
, 0.0f
, 0.0f
, 0.0f
, /* not used */
247 0.0f
, 0.0f
, 0.0f
, coverage
/* color */
260 fs
= shaders_cache_fill(ctx
->sc
, VEGA_SOLID_FILL_SHADER
);
262 if (renderer_filter_begin(ctx
->renderer
, dst
, VG_FALSE
, ~0,
263 NULL
, NULL
, 0, fs
, (const void *) fs_consts
, sizeof(fs_consts
))) {
264 renderer_filter(ctx
->renderer
, x
, y
, width
, height
, 0, 0, 0, 0);
265 renderer_filter_end(ctx
->renderer
);
269 save_alpha_to_file(0);
274 static void mask_using_texture(struct pipe_sampler_view
*sampler_view
,
276 VGMaskOperation operation
,
278 VGint width
, VGint height
)
280 struct vg_context
*ctx
= vg_current_context();
281 struct pipe_sampler_view
*dst_view
= vg_get_surface_mask(ctx
);
282 struct pipe_resource
*dst
= dst_view
->texture
;
283 struct pipe_resource
*texture
= sampler_view
->texture
;
284 const struct pipe_sampler_state
*samplers
[2];
285 struct pipe_sampler_view
*views
[2];
286 struct pipe_sampler_state sampler
;
287 VGint offsets
[4], loc
[4];
288 const VGfloat ones
[4] = {1.f
, 1.f
, 1.f
, 1.f
};
291 if (!intersect_rectangles(dst
->width0
, dst
->height0
,
292 texture
->width0
, texture
->height0
,
297 debug_printf("Offset = [%d, %d, %d, %d]\n", offsets
[0],
298 offsets
[1], offsets
[2], offsets
[3]);
299 debug_printf("Locati = [%d, %d, %d, %d]\n", loc
[0],
300 loc
[1], loc
[2], loc
[3]);
304 sampler
= ctx
->mask
.sampler
;
305 sampler
.normalized_coords
= 1;
306 samplers
[0] = &sampler
;
307 views
[0] = sampler_view
;
309 /* prepare our blend surface */
310 samplers
[1] = &ctx
->mask
.sampler
;
311 views
[1] = vg_prepare_blend_surface_from_mask(ctx
);
313 fs
= setup_mask_operation(operation
);
315 if (renderer_filter_begin(ctx
->renderer
, dst
, VG_FALSE
,
316 ~0, samplers
, views
, 2, fs
, (const void *) ones
, sizeof(ones
))) {
317 /* layer should be flipped when used as a texture */
319 offsets
[1] += offsets
[3];
320 offsets
[3] = -offsets
[3];
322 renderer_filter(ctx
->renderer
,
323 loc
[0], loc
[1], loc
[2], loc
[3],
324 offsets
[0], offsets
[1], offsets
[2], offsets
[3]);
325 renderer_filter_end(ctx
->renderer
);
330 #ifdef OPENVG_VERSION_1_1
332 struct vg_mask_layer
* mask_layer_create(VGint width
, VGint height
)
334 struct vg_context
*ctx
= vg_current_context();
335 struct vg_mask_layer
*mask
= 0;
337 mask
= CALLOC_STRUCT(vg_mask_layer
);
338 vg_init_object(&mask
->base
, ctx
, VG_OBJECT_MASK
);
340 mask
->height
= height
;
343 struct pipe_resource pt
;
344 struct pipe_context
*pipe
= ctx
->pipe
;
345 struct pipe_screen
*screen
= ctx
->pipe
->screen
;
346 struct pipe_sampler_view view_templ
;
347 struct pipe_sampler_view
*view
= NULL
;
348 struct pipe_resource
*texture
;
350 memset(&pt
, 0, sizeof(pt
));
351 pt
.target
= PIPE_TEXTURE_2D
;
352 pt
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
357 pt
.bind
= PIPE_BIND_SAMPLER_VIEW
;
359 texture
= screen
->resource_create(screen
, &pt
);
362 u_sampler_view_default_template(&view_templ
, texture
, texture
->format
);
363 view
= pipe
->create_sampler_view(pipe
, texture
, &view_templ
);
365 pipe_resource_reference(&texture
, NULL
);
366 mask
->sampler_view
= view
;
369 vg_context_add_object(ctx
, VG_OBJECT_MASK
, mask
);
374 void mask_layer_destroy(struct vg_mask_layer
*layer
)
376 struct vg_context
*ctx
= vg_current_context();
378 vg_context_remove_object(ctx
, VG_OBJECT_MASK
, layer
);
379 pipe_sampler_view_reference(&layer
->sampler_view
, NULL
);
383 void mask_layer_fill(struct vg_mask_layer
*layer
,
385 VGint width
, VGint height
,
388 VGfloat alpha_color
[4] = {0, 0, 0, 0};
390 alpha_color
[3] = value
;
392 mask_resource_fill(layer
->sampler_view
->texture
,
393 x
, y
, width
, height
, value
);
396 void mask_copy(struct vg_mask_layer
*layer
,
399 VGint width
, VGint height
)
401 struct vg_context
*ctx
= vg_current_context();
402 struct pipe_sampler_view
*src
= vg_get_surface_mask(ctx
);
403 struct pipe_surface
*surf
, surf_tmpl
;
405 /* get the destination surface */
406 u_surface_default_template(&surf_tmpl
, layer
->sampler_view
->texture
,
407 PIPE_BIND_RENDER_TARGET
);
408 surf
= ctx
->pipe
->create_surface(ctx
->pipe
, layer
->sampler_view
->texture
,
410 if (surf
&& renderer_copy_begin(ctx
->renderer
, surf
, VG_FALSE
, src
)) {
411 /* layer should be flipped when used as a texture */
415 renderer_copy(ctx
->renderer
,
416 dx
, dy
, width
, height
,
417 sx
, sy
, width
, height
);
418 renderer_copy_end(ctx
->renderer
);
421 pipe_surface_reference(&surf
, NULL
);
424 static void mask_layer_render_to(struct vg_mask_layer
*layer
,
426 VGbitfield paint_modes
)
428 struct vg_context
*ctx
= vg_current_context();
429 struct pipe_context
*pipe
= ctx
->pipe
;
430 struct pipe_sampler_view
*view
= vg_get_surface_mask(ctx
);
431 struct matrix
*mat
= &ctx
->state
.vg
.path_user_to_surface_matrix
;
432 struct pipe_surface
*surf
, surf_tmpl
;
433 u_surface_default_template(&surf_tmpl
, view
->texture
,
434 PIPE_BIND_RENDER_TARGET
);
435 surf
= pipe
->create_surface(pipe
, view
->texture
, &surf_tmpl
);
437 renderer_validate_for_mask_rendering(ctx
->renderer
, surf
);
439 if (paint_modes
& VG_FILL_PATH
) {
440 path_fill(path
, mat
);
443 if (paint_modes
& VG_STROKE_PATH
){
444 path_stroke(path
, mat
);
447 pipe_surface_reference(&surf
, NULL
);
450 void mask_render_to(struct path
*path
,
451 VGbitfield paint_modes
,
452 VGMaskOperation operation
)
454 struct vg_context
*ctx
= vg_current_context();
455 struct st_framebuffer
*stfb
= ctx
->draw_buffer
;
456 struct vg_mask_layer
*temp_layer
;
460 height
= stfb
->height
;
462 temp_layer
= mask_layer_create(width
, height
);
463 mask_layer_fill(temp_layer
, 0, 0, width
, height
, 0.0f
);
465 mask_layer_render_to(temp_layer
, path
, paint_modes
);
467 mask_using_layer(temp_layer
, operation
, 0, 0, width
, height
);
469 mask_layer_destroy(temp_layer
);
472 void mask_using_layer(struct vg_mask_layer
*layer
,
473 VGMaskOperation operation
,
475 VGint width
, VGint height
)
477 mask_using_texture(layer
->sampler_view
, VG_TRUE
, operation
,
478 x
, y
, width
, height
);
481 VGint
mask_layer_width(struct vg_mask_layer
*layer
)
486 VGint
mask_layer_height(struct vg_mask_layer
*layer
)
488 return layer
->height
;
494 void mask_using_image(struct vg_image
*image
,
495 VGMaskOperation operation
,
497 VGint width
, VGint height
)
499 mask_using_texture(image
->sampler_view
, VG_FALSE
, operation
,
500 x
, y
, width
, height
);
503 void mask_fill(VGint x
, VGint y
, VGint width
, VGint height
,
506 struct vg_context
*ctx
= vg_current_context();
507 struct pipe_sampler_view
*view
= vg_get_surface_mask(ctx
);
510 debug_printf("mask_fill(%d, %d, %d, %d) with rgba(%f, %f, %f, %f)\n",
512 0.0f
, 0.0f
, 0.0f
, value
);
515 mask_resource_fill(view
->texture
, x
, y
, width
, height
, value
);
518 VGint
mask_bind_samplers(struct pipe_sampler_state
**samplers
,
519 struct pipe_sampler_view
**sampler_views
)
521 struct vg_context
*ctx
= vg_current_context();
523 if (ctx
->state
.vg
.masking
) {
524 samplers
[1] = &ctx
->mask
.sampler
;
525 sampler_views
[1] = vg_get_surface_mask(ctx
);