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"
34 #include "st_inlines.h"
36 #include "pipe/p_context.h"
37 #include "pipe/p_screen.h"
38 #include "pipe/p_inlines.h"
39 #include "util/u_format.h"
40 #include "util/u_memory.h"
42 struct vg_mask_layer
{
43 struct vg_object base
;
48 struct pipe_texture
*texture
;
51 static INLINE
struct pipe_surface
*
52 alpha_mask_surface(struct vg_context
*ctx
, int usage
)
54 struct pipe_screen
*screen
= ctx
->pipe
->screen
;
55 struct st_framebuffer
*stfb
= ctx
->draw_buffer
;
56 return screen
->get_tex_surface(screen
,
62 static INLINE VGboolean
63 intersect_rectangles(VGint dwidth
, VGint dheight
,
64 VGint swidth
, VGint sheight
,
66 VGint twidth
, VGint theight
,
70 if (tx
+ twidth
<= 0 || tx
>= dwidth
)
72 if (ty
+ theight
<= 0 || ty
>= dheight
)
84 location
[2] = MIN2(tx
+ swidth
, MIN2(dwidth
, tx
+ twidth
));
85 offsets
[2] = location
[2];
87 offsets
[2] = MIN2(twidth
, MIN2(dwidth
- tx
, swidth
));
88 location
[2] = offsets
[2];
95 location
[3] = MIN2(ty
+ sheight
, MIN2(dheight
, ty
+ theight
));
96 offsets
[3] = location
[3];
98 offsets
[3] = MIN2(theight
, MIN2(dheight
- ty
, sheight
));
99 location
[3] = offsets
[3];
106 static void read_alpha_mask(void * data
, VGint dataStride
,
107 VGImageFormat dataFormat
,
109 VGint width
, VGint height
)
111 struct vg_context
*ctx
= vg_current_context();
112 struct pipe_context
*pipe
= ctx
->pipe
;
113 struct pipe_screen
*screen
= pipe
->screen
;
115 struct st_framebuffer
*stfb
= ctx
->draw_buffer
;
116 struct st_renderbuffer
*strb
= stfb
->alpha_mask
;
117 struct pipe_framebuffer_state
*fb
= &ctx
->state
.g3d
.fb
;
119 VGfloat temp
[VEGA_MAX_IMAGE_WIDTH
][4];
120 VGfloat
*df
= (VGfloat
*)temp
;
121 VGint y
= (fb
->height
- sy
) - 1, yStep
= -1;
123 VGubyte
*dst
= (VGubyte
*)data
;
124 VGint xoffset
= 0, yoffset
= 0;
126 /* make sure rendering has completed */
127 pipe
->flush(pipe
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
130 xoffset
*= _vega_size_for_format(dataFormat
);
138 y
= (fb
->height
- sy
) - 1;
139 yoffset
*= dataStride
;
143 struct pipe_surface
*surf
;
145 surf
= screen
->get_tex_surface(screen
, strb
->texture
, 0, 0, 0,
146 PIPE_BUFFER_USAGE_CPU_READ
);
148 /* Do a row at a time to flip image data vertically */
149 for (i
= 0; i
< height
; i
++) {
151 debug_printf("%d-%d == %d\n", sy
, height
, y
);
153 pipe_get_tile_rgba(surf
, sx
, y
, width
, 1, df
);
155 _vega_pack_rgba_span_float(ctx
, width
, temp
, dataFormat
,
156 dst
+ yoffset
+ xoffset
);
160 pipe_surface_reference(&surf
, NULL
);
164 void save_alpha_to_file(const char *filename
)
166 struct vg_context
*ctx
= vg_current_context();
167 struct pipe_framebuffer_state
*fb
= &ctx
->state
.g3d
.fb
;
171 data
= malloc(sizeof(int) * fb
->width
* fb
->height
);
172 read_alpha_mask(data
, fb
->width
* sizeof(int),
174 0, 0, fb
->width
, fb
->height
);
175 fprintf(stderr
, "/*---------- start */\n");
176 fprintf(stderr
, "const int image_width = %d;\n",
178 fprintf(stderr
, "const int image_height = %d;\n",
180 fprintf(stderr
, "const int image_data = {\n");
181 for (i
= 0; i
< fb
->height
; ++i
) {
182 for (j
= 0; j
< fb
->width
; ++j
) {
183 int rgba
= data
[i
* fb
->height
+ j
];
186 argb
|= ((rgba
& 0xff) << 24);
187 fprintf(stderr
, "0x%x, ", argb
);
189 fprintf(stderr
, "\n");
191 fprintf(stderr
, "};\n");
192 fprintf(stderr
, "/*---------- end */\n");
196 static void setup_mask_framebuffer(struct pipe_surface
*surf
,
197 VGint surf_width
, VGint surf_height
)
199 struct vg_context
*ctx
= vg_current_context();
200 struct pipe_framebuffer_state fb
;
202 memset(&fb
, 0, sizeof(fb
));
203 fb
.width
= surf_width
;
204 fb
.height
= surf_height
;
209 for (i
= 1; i
< PIPE_MAX_COLOR_BUFS
; ++i
)
212 cso_set_framebuffer(ctx
->cso_context
, &fb
);
216 /* setup shader constants */
217 static void setup_mask_operation(VGMaskOperation operation
)
219 struct vg_context
*ctx
= vg_current_context();
220 struct pipe_constant_buffer
*cbuf
= &ctx
->mask
.cbuf
;
221 const VGint param_bytes
= 4 * sizeof(VGfloat
);
222 const VGfloat ones
[4] = {1.f
, 1.f
, 1.f
, 1.f
};
225 /* We always need to get a new buffer, to keep the drivers simple and
226 * avoid gratuitous rendering synchronization.
228 pipe_buffer_reference(&cbuf
->buffer
, NULL
);
230 cbuf
->buffer
= pipe_buffer_create(ctx
->pipe
->screen
, 1,
231 PIPE_BUFFER_USAGE_CONSTANT
,
234 st_no_flush_pipe_buffer_write(ctx
, cbuf
->buffer
,
235 0, param_bytes
, ones
);
238 ctx
->pipe
->set_constant_buffer(ctx
->pipe
, PIPE_SHADER_FRAGMENT
, 0, cbuf
);
240 case VG_UNION_MASK
: {
241 if (!ctx
->mask
.union_fs
) {
242 ctx
->mask
.union_fs
= shader_create_from_text(ctx
->pipe
,
245 PIPE_SHADER_FRAGMENT
);
247 shader
= ctx
->mask
.union_fs
->driver
;
250 case VG_INTERSECT_MASK
: {
251 if (!ctx
->mask
.intersect_fs
) {
252 ctx
->mask
.intersect_fs
= shader_create_from_text(ctx
->pipe
,
255 PIPE_SHADER_FRAGMENT
);
257 shader
= ctx
->mask
.intersect_fs
->driver
;
260 case VG_SUBTRACT_MASK
: {
261 if (!ctx
->mask
.subtract_fs
) {
262 ctx
->mask
.subtract_fs
= shader_create_from_text(ctx
->pipe
,
265 PIPE_SHADER_FRAGMENT
);
267 shader
= ctx
->mask
.subtract_fs
->driver
;
271 if (!ctx
->mask
.set_fs
) {
272 ctx
->mask
.set_fs
= shader_create_from_text(ctx
->pipe
,
275 PIPE_SHADER_FRAGMENT
);
277 shader
= ctx
->mask
.set_fs
->driver
;
284 cso_set_fragment_shader_handle(ctx
->cso_context
, shader
);
287 static void setup_mask_samplers(struct pipe_texture
*umask
)
289 struct vg_context
*ctx
= vg_current_context();
290 struct pipe_sampler_state
*samplers
[PIPE_MAX_SAMPLERS
];
291 struct pipe_texture
*textures
[PIPE_MAX_SAMPLERS
];
292 struct st_framebuffer
*fb_buffers
= ctx
->draw_buffer
;
293 struct pipe_texture
*uprev
= NULL
;
294 struct pipe_sampler_state sampler
;
296 uprev
= fb_buffers
->blend_texture
;
297 sampler
= ctx
->mask
.sampler
;
298 sampler
.normalized_coords
= 1;
307 samplers
[0] = &sampler
;
308 samplers
[1] = &ctx
->mask
.sampler
;
313 cso_set_samplers(ctx
->cso_context
, 2,
314 (const struct pipe_sampler_state
**)samplers
);
315 cso_set_sampler_textures(ctx
->cso_context
, 2, textures
);
319 /* setup shader constants */
320 static void setup_mask_fill(const VGfloat color
[4])
322 struct vg_context
*ctx
= vg_current_context();
323 struct pipe_constant_buffer
*cbuf
= &ctx
->mask
.cbuf
;
324 const VGint param_bytes
= 4 * sizeof(VGfloat
);
326 /* We always need to get a new buffer, to keep the drivers simple and
327 * avoid gratuitous rendering synchronization.
329 pipe_buffer_reference(&cbuf
->buffer
, NULL
);
331 cbuf
->buffer
= pipe_buffer_create(ctx
->pipe
->screen
, 1,
332 PIPE_BUFFER_USAGE_CONSTANT
,
335 st_no_flush_pipe_buffer_write(ctx
, cbuf
->buffer
, 0, param_bytes
, color
);
338 ctx
->pipe
->set_constant_buffer(ctx
->pipe
, PIPE_SHADER_FRAGMENT
, 0, cbuf
);
339 cso_set_fragment_shader_handle(ctx
->cso_context
,
340 shaders_cache_fill(ctx
->sc
,
341 VEGA_SOLID_FILL_SHADER
));
344 static void setup_mask_viewport()
346 struct vg_context
*ctx
= vg_current_context();
347 vg_set_viewport(ctx
, VEGA_Y0_TOP
);
350 static void setup_mask_blend()
352 struct vg_context
*ctx
= vg_current_context();
354 struct pipe_blend_state blend
;
356 memset(&blend
, 0, sizeof(struct pipe_blend_state
));
357 blend
.blend_enable
= 1;
358 blend
.colormask
|= PIPE_MASK_R
;
359 blend
.colormask
|= PIPE_MASK_G
;
360 blend
.colormask
|= PIPE_MASK_B
;
361 blend
.colormask
|= PIPE_MASK_A
;
362 blend
.rgb_src_factor
= PIPE_BLENDFACTOR_ONE
;
363 blend
.alpha_src_factor
= PIPE_BLENDFACTOR_ONE
;
364 blend
.rgb_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
365 blend
.alpha_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
367 cso_set_blend(ctx
->cso_context
, &blend
);
371 static void surface_fill(struct pipe_surface
*surf
,
372 int surf_width
, int surf_height
,
373 int x
, int y
, int width
, int height
,
374 const VGfloat color
[4])
376 struct vg_context
*ctx
= vg_current_context();
387 cso_save_framebuffer(ctx
->cso_context
);
388 cso_save_blend(ctx
->cso_context
);
389 cso_save_fragment_shader(ctx
->cso_context
);
390 cso_save_viewport(ctx
->cso_context
);
393 setup_mask_fill(color
);
394 setup_mask_framebuffer(surf
, surf_width
, surf_height
);
395 setup_mask_viewport();
397 renderer_draw_quad(ctx
->renderer
, x
, y
,
398 x
+ width
, y
+ height
, 0.0f
/*depth should be disabled*/);
401 /* make sure rendering has completed */
402 ctx
->pipe
->flush(ctx
->pipe
,
403 PIPE_FLUSH_RENDER_CACHE
| PIPE_FLUSH_FRAME
,
407 save_alpha_to_file(0);
410 cso_restore_blend(ctx
->cso_context
);
411 cso_restore_framebuffer(ctx
->cso_context
);
412 cso_restore_fragment_shader(ctx
->cso_context
);
413 cso_restore_viewport(ctx
->cso_context
);
417 static void mask_using_texture(struct pipe_texture
*texture
,
418 VGMaskOperation operation
,
420 VGint width
, VGint height
)
422 struct vg_context
*ctx
= vg_current_context();
423 struct pipe_surface
*surface
=
424 alpha_mask_surface(ctx
, PIPE_BUFFER_USAGE_GPU_WRITE
);
425 VGint offsets
[4], loc
[4];
429 if (!intersect_rectangles(surface
->width
, surface
->height
,
430 texture
->width0
, texture
->height0
,
435 debug_printf("Offset = [%d, %d, %d, %d]\n", offsets
[0],
436 offsets
[1], offsets
[2], offsets
[3]);
437 debug_printf("Locati = [%d, %d, %d, %d]\n", loc
[0],
438 loc
[1], loc
[2], loc
[3]);
441 /* prepare our blend surface */
442 vg_prepare_blend_surface_from_mask(ctx
);
444 cso_save_samplers(ctx
->cso_context
);
445 cso_save_sampler_textures(ctx
->cso_context
);
446 cso_save_framebuffer(ctx
->cso_context
);
447 cso_save_blend(ctx
->cso_context
);
448 cso_save_fragment_shader(ctx
->cso_context
);
449 cso_save_viewport(ctx
->cso_context
);
451 setup_mask_samplers(texture
);
453 setup_mask_operation(operation
);
454 setup_mask_framebuffer(surface
, surface
->width
, surface
->height
);
455 setup_mask_viewport();
457 /* render the quad to propagate the rendering from stencil */
458 renderer_draw_texture(ctx
->renderer
, texture
,
459 offsets
[0], offsets
[1],
460 offsets
[0] + offsets
[2], offsets
[1] + offsets
[3],
461 loc
[0], loc
[1], loc
[0] + loc
[2], loc
[1] + loc
[3]);
463 /* make sure rendering has completed */
464 ctx
->pipe
->flush(ctx
->pipe
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
465 cso_restore_blend(ctx
->cso_context
);
466 cso_restore_framebuffer(ctx
->cso_context
);
467 cso_restore_fragment_shader(ctx
->cso_context
);
468 cso_restore_samplers(ctx
->cso_context
);
469 cso_restore_sampler_textures(ctx
->cso_context
);
470 cso_restore_viewport(ctx
->cso_context
);
472 pipe_surface_reference(&surface
, NULL
);
476 #ifdef OPENVG_VERSION_1_1
478 struct vg_mask_layer
* mask_layer_create(VGint width
, VGint height
)
480 struct vg_context
*ctx
= vg_current_context();
481 struct vg_mask_layer
*mask
= 0;
483 mask
= CALLOC_STRUCT(vg_mask_layer
);
484 vg_init_object(&mask
->base
, ctx
, VG_OBJECT_MASK
);
486 mask
->height
= height
;
489 struct pipe_texture pt
;
490 struct pipe_screen
*screen
= ctx
->pipe
->screen
;
492 memset(&pt
, 0, sizeof(pt
));
493 pt
.target
= PIPE_TEXTURE_2D
;
494 pt
.format
= PIPE_FORMAT_A8R8G8B8_UNORM
;
499 pt
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
502 mask
->texture
= screen
->texture_create(screen
, &pt
);
505 vg_context_add_object(ctx
, VG_OBJECT_MASK
, mask
);
510 void mask_layer_destroy(struct vg_mask_layer
*layer
)
512 struct vg_context
*ctx
= vg_current_context();
514 vg_context_remove_object(ctx
, VG_OBJECT_MASK
, layer
);
515 pipe_texture_release(&layer
->texture
);
519 void mask_layer_fill(struct vg_mask_layer
*layer
,
521 VGint width
, VGint height
,
524 struct vg_context
*ctx
= vg_current_context();
525 VGfloat alpha_color
[4] = {0, 0, 0, 0};
526 struct pipe_surface
*surface
;
528 alpha_color
[3] = value
;
530 surface
= ctx
->pipe
->screen
->get_tex_surface(
531 ctx
->pipe
->screen
, layer
->texture
,
533 PIPE_BUFFER_USAGE_GPU_WRITE
);
535 surface_fill(surface
,
536 layer
->width
, layer
->height
,
537 x
, y
, width
, height
, alpha_color
);
539 ctx
->pipe
->screen
->tex_surface_release(ctx
->pipe
->screen
, &surface
);
542 void mask_copy(struct vg_mask_layer
*layer
,
545 VGint width
, VGint height
)
547 struct vg_context
*ctx
= vg_current_context();
548 struct st_framebuffer
*fb_buffers
= ctx
->draw_buffer
;
550 renderer_copy_texture(ctx
->renderer
,
553 sx
+ width
, sy
+ height
,
554 fb_buffers
->alpha_mask
,
556 dx
+ width
, dy
+ height
);
559 static void mask_layer_render_to(struct vg_mask_layer
*layer
,
561 VGbitfield paint_modes
)
563 struct vg_context
*ctx
= vg_current_context();
564 const VGfloat fill_color
[4] = {1.f
, 1.f
, 1.f
, 1.f
};
565 struct pipe_screen
*screen
= ctx
->pipe
->screen
;
566 struct pipe_surface
*surface
;
568 surface
= screen
->get_tex_surface(screen
, layer
->texture
, 0, 0, 0,
569 PIPE_BUFFER_USAGE_GPU_WRITE
);
571 cso_save_framebuffer(ctx
->cso_context
);
572 cso_save_fragment_shader(ctx
->cso_context
);
573 cso_save_viewport(ctx
->cso_context
);
576 setup_mask_fill(fill_color
);
577 setup_mask_framebuffer(surface
, layer
->width
, layer
->height
);
578 setup_mask_viewport();
580 if (paint_modes
& VG_FILL_PATH
) {
581 struct matrix
*mat
= &ctx
->state
.vg
.path_user_to_surface_matrix
;
582 path_fill(path
, mat
);
585 if (paint_modes
& VG_STROKE_PATH
){
590 /* make sure rendering has completed */
591 ctx
->pipe
->flush(ctx
->pipe
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
593 cso_restore_framebuffer(ctx
->cso_context
);
594 cso_restore_fragment_shader(ctx
->cso_context
);
595 cso_restore_viewport(ctx
->cso_context
);
596 ctx
->state
.dirty
|= BLEND_DIRTY
;
598 screen
->tex_surface_release(ctx
->pipe
->screen
, &surface
);
601 void mask_render_to(struct path
*path
,
602 VGbitfield paint_modes
,
603 VGMaskOperation operation
)
605 struct vg_context
*ctx
= vg_current_context();
606 struct st_framebuffer
*fb_buffers
= ctx
->draw_buffer
;
607 struct vg_mask_layer
*temp_layer
;
610 width
= fb_buffers
->alpha_mask
->width0
;
611 height
= fb_buffers
->alpha_mask
->width0
;
613 temp_layer
= mask_layer_create(width
, height
);
615 mask_layer_render_to(temp_layer
, path
, paint_modes
);
617 mask_using_layer(temp_layer
, 0, 0, width
, height
,
620 mask_layer_destroy(temp_layer
);
623 void mask_using_layer(struct vg_mask_layer
*layer
,
624 VGMaskOperation operation
,
626 VGint width
, VGint height
)
628 mask_using_texture(layer
->texture
, operation
,
629 x
, y
, width
, height
);
632 VGint
mask_layer_width(struct vg_mask_layer
*layer
)
637 VGint
mask_layer_height(struct vg_mask_layer
*layer
)
639 return layer
->height
;
645 void mask_using_image(struct vg_image
*image
,
646 VGMaskOperation operation
,
648 VGint width
, VGint height
)
650 mask_using_texture(image
->texture
, operation
,
651 x
, y
, width
, height
);
654 void mask_fill(VGint x
, VGint y
, VGint width
, VGint height
,
657 struct vg_context
*ctx
= vg_current_context();
658 VGfloat alpha_color
[4] = {.0f
, .0f
, .0f
, value
};
659 struct pipe_surface
*surf
= alpha_mask_surface(
660 ctx
, PIPE_BUFFER_USAGE_GPU_WRITE
);
663 debug_printf("mask_fill(%d, %d, %d, %d) with rgba(%f, %f, %f, %f)\n",
665 alpha_color
[0], alpha_color
[1],
666 alpha_color
[2], alpha_color
[3]);
667 debug_printf("XXX %f === %f \n",
668 alpha_color
[3], value
);
671 surface_fill(surf
, surf
->width
, surf
->height
,
672 x
, y
, width
, height
, alpha_color
);
674 pipe_surface_reference(&surf
, NULL
);
677 VGint
mask_bind_samplers(struct pipe_sampler_state
**samplers
,
678 struct pipe_texture
**textures
)
680 struct vg_context
*ctx
= vg_current_context();
682 if (ctx
->state
.vg
.masking
) {
683 struct st_framebuffer
*fb_buffers
= ctx
->draw_buffer
;
685 samplers
[1] = &ctx
->mask
.sampler
;
686 textures
[1] = fb_buffers
->alpha_mask
;