1 /**********************************************************
2 * Copyright 2009-2011 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 *********************************************************
26 * Zack Rusin <zackr-at-vmware-dot-com>
29 #include "xa_context.h"
32 #include "cso_cache/cso_context.h"
33 #include "util/u_inlines.h"
34 #include "util/u_sampler.h"
35 #include "util/u_draw_quad.h"
37 #define floatsEqual(x, y) (fabs(x - y) <= 0.00001f * MIN2(fabs(x), fabs(y)))
38 #define floatIsZero(x) (floatsEqual((x) + 1, 1))
40 #define NUM_COMPONENTS 4
45 renderer_set_constants(struct xa_context
*r
,
46 int shader_type
, const float *params
, int param_bytes
);
49 is_affine(float *matrix
)
51 return floatIsZero(matrix
[2]) && floatIsZero(matrix
[5])
52 && floatsEqual(matrix
[8], 1);
56 map_point(float *mat
, float x
, float y
, float *out_x
, float *out_y
)
64 *out_x
= mat
[0] * x
+ mat
[3] * y
+ mat
[6];
65 *out_y
= mat
[1] * x
+ mat
[4] * y
+ mat
[7];
66 if (!is_affine(mat
)) {
67 float w
= 1 / (mat
[2] * x
+ mat
[5] * y
+ mat
[8]);
75 renderer_draw(struct xa_context
*r
)
77 int num_verts
= r
->buffer_size
/ (r
->attrs_per_vertex
* NUM_COMPONENTS
);
82 cso_set_vertex_elements(r
->cso
, r
->attrs_per_vertex
, r
->velems
);
83 util_draw_user_vertex_buffer(r
->cso
, r
->buffer
, PIPE_PRIM_QUADS
,
84 num_verts
, /* verts */
85 r
->attrs_per_vertex
); /* attribs/vert */
90 renderer_draw_conditional(struct xa_context
*r
, int next_batch
)
92 if (r
->buffer_size
+ next_batch
>= XA_VB_SIZE
||
93 (next_batch
== 0 && r
->buffer_size
)) {
99 renderer_init_state(struct xa_context
*r
)
101 struct pipe_depth_stencil_alpha_state dsa
;
102 struct pipe_rasterizer_state raster
;
105 /* set common initial clip state */
106 memset(&dsa
, 0, sizeof(struct pipe_depth_stencil_alpha_state
));
107 cso_set_depth_stencil_alpha(r
->cso
, &dsa
);
109 /* XXX: move to renderer_init_state? */
110 memset(&raster
, 0, sizeof(struct pipe_rasterizer_state
));
111 raster
.gl_rasterization_rules
= 1;
112 raster
.depth_clip
= 1;
113 cso_set_rasterizer(r
->cso
, &raster
);
115 /* vertex elements state */
116 memset(&r
->velems
[0], 0, sizeof(r
->velems
[0]) * 3);
117 for (i
= 0; i
< 3; i
++) {
118 r
->velems
[i
].src_offset
= i
* 4 * sizeof(float);
119 r
->velems
[i
].instance_divisor
= 0;
120 r
->velems
[i
].vertex_buffer_index
= 0;
121 r
->velems
[i
].src_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
126 add_vertex_color(struct xa_context
*r
, float x
, float y
, float color
[4])
128 float *vertex
= r
->buffer
+ r
->buffer_size
;
132 vertex
[2] = 0.f
; /*z */
133 vertex
[3] = 1.f
; /*w */
135 vertex
[4] = color
[0]; /*r */
136 vertex
[5] = color
[1]; /*g */
137 vertex
[6] = color
[2]; /*b */
138 vertex
[7] = color
[3]; /*a */
144 add_vertex_1tex(struct xa_context
*r
, float x
, float y
, float s
, float t
)
146 float *vertex
= r
->buffer
+ r
->buffer_size
;
150 vertex
[2] = 0.f
; /*z */
151 vertex
[3] = 1.f
; /*w */
153 vertex
[4] = s
; /*s */
154 vertex
[5] = t
; /*t */
155 vertex
[6] = 0.f
; /*r */
156 vertex
[7] = 1.f
; /*q */
162 add_vertex_2tex(struct xa_context
*r
,
163 float x
, float y
, float s0
, float t0
, float s1
, float t1
)
165 float *vertex
= r
->buffer
+ r
->buffer_size
;
169 vertex
[2] = 0.f
; /*z */
170 vertex
[3] = 1.f
; /*w */
172 vertex
[4] = s0
; /*s */
173 vertex
[5] = t0
; /*t */
174 vertex
[6] = 0.f
; /*r */
175 vertex
[7] = 1.f
; /*q */
177 vertex
[8] = s1
; /*s */
178 vertex
[9] = t1
; /*t */
179 vertex
[10] = 0.f
; /*r */
180 vertex
[11] = 1.f
; /*q */
182 r
->buffer_size
+= 12;
186 add_vertex_data1(struct xa_context
*r
,
187 float srcX
, float srcY
, float dstX
, float dstY
,
188 float width
, float height
,
189 struct pipe_resource
*src
, const float *src_matrix
)
191 float s0
, t0
, s1
, t1
, s2
, t2
, s3
, t3
;
192 float pt0
[2], pt1
[2], pt2
[2], pt3
[2];
196 pt1
[0] = (srcX
+ width
);
198 pt2
[0] = (srcX
+ width
);
199 pt2
[1] = (srcY
+ height
);
201 pt3
[1] = (srcY
+ height
);
204 map_point((float *)src_matrix
, pt0
[0], pt0
[1], &pt0
[0], &pt0
[1]);
205 map_point((float *)src_matrix
, pt1
[0], pt1
[1], &pt1
[0], &pt1
[1]);
206 map_point((float *)src_matrix
, pt2
[0], pt2
[1], &pt2
[0], &pt2
[1]);
207 map_point((float *)src_matrix
, pt3
[0], pt3
[1], &pt3
[0], &pt3
[1]);
210 s0
= pt0
[0] / src
->width0
;
211 s1
= pt1
[0] / src
->width0
;
212 s2
= pt2
[0] / src
->width0
;
213 s3
= pt3
[0] / src
->width0
;
214 t0
= pt0
[1] / src
->height0
;
215 t1
= pt1
[1] / src
->height0
;
216 t2
= pt2
[1] / src
->height0
;
217 t3
= pt3
[1] / src
->height0
;
220 add_vertex_1tex(r
, dstX
, dstY
, s0
, t0
);
222 add_vertex_1tex(r
, dstX
+ width
, dstY
, s1
, t1
);
224 add_vertex_1tex(r
, dstX
+ width
, dstY
+ height
, s2
, t2
);
226 add_vertex_1tex(r
, dstX
, dstY
+ height
, s3
, t3
);
230 add_vertex_data2(struct xa_context
*r
,
231 float srcX
, float srcY
, float maskX
, float maskY
,
232 float dstX
, float dstY
, float width
, float height
,
233 struct pipe_resource
*src
,
234 struct pipe_resource
*mask
,
235 const float *src_matrix
, const float *mask_matrix
)
237 float src_s0
, src_t0
, src_s1
, src_t1
;
238 float mask_s0
, mask_t0
, mask_s1
, mask_t1
;
239 float spt0
[2], spt1
[2];
240 float mpt0
[2], mpt1
[2];
244 spt1
[0] = srcX
+ width
;
245 spt1
[1] = srcY
+ height
;
249 mpt1
[0] = maskX
+ width
;
250 mpt1
[1] = maskY
+ height
;
253 map_point((float *)src_matrix
, spt0
[0], spt0
[1], &spt0
[0], &spt0
[1]);
254 map_point((float *)src_matrix
, spt1
[0], spt1
[1], &spt1
[0], &spt1
[1]);
258 map_point((float *)mask_matrix
, mpt0
[0], mpt0
[1], &mpt0
[0], &mpt0
[1]);
259 map_point((float *)mask_matrix
, mpt1
[0], mpt1
[1], &mpt1
[0], &mpt1
[1]);
262 src_s0
= spt0
[0] / src
->width0
;
263 src_t0
= spt0
[1] / src
->height0
;
264 src_s1
= spt1
[0] / src
->width0
;
265 src_t1
= spt1
[1] / src
->height0
;
267 mask_s0
= mpt0
[0] / mask
->width0
;
268 mask_t0
= mpt0
[1] / mask
->height0
;
269 mask_s1
= mpt1
[0] / mask
->width0
;
270 mask_t1
= mpt1
[1] / mask
->height0
;
273 add_vertex_2tex(r
, dstX
, dstY
,
274 src_s0
, src_t0
, mask_s0
, mask_t0
);
276 add_vertex_2tex(r
, dstX
+ width
, dstY
,
277 src_s1
, src_t0
, mask_s1
, mask_t0
);
279 add_vertex_2tex(r
, dstX
+ width
, dstY
+ height
,
280 src_s1
, src_t1
, mask_s1
, mask_t1
);
282 add_vertex_2tex(r
, dstX
, dstY
+ height
,
283 src_s0
, src_t1
, mask_s0
, mask_t1
);
287 setup_vertex_data_yuv(struct xa_context
*r
,
294 float dstW
, float dstH
, struct xa_surface
*srf
[])
296 float s0
, t0
, s1
, t1
;
297 float spt0
[2], spt1
[2];
298 struct pipe_resource
*tex
;
302 spt1
[0] = srcX
+ srcW
;
303 spt1
[1] = srcY
+ srcH
;
306 s0
= spt0
[0] / tex
->width0
;
307 t0
= spt0
[1] / tex
->height0
;
308 s1
= spt1
[0] / tex
->width0
;
309 t1
= spt1
[1] / tex
->height0
;
312 add_vertex_1tex(r
, dstX
, dstY
, s0
, t0
);
314 add_vertex_1tex(r
, dstX
+ dstW
, dstY
, s1
, t0
);
316 add_vertex_1tex(r
, dstX
+ dstW
, dstY
+ dstH
, s1
, t1
);
318 add_vertex_1tex(r
, dstX
, dstY
+ dstH
, s0
, t1
);
321 /* Set up framebuffer, viewport and vertex shader constant buffer
322 * state for a particular destinaton surface. In all our rendering,
323 * these concepts are linked.
326 renderer_bind_destination(struct xa_context
*r
,
327 struct pipe_surface
*surface
, int width
, int height
)
330 struct pipe_framebuffer_state fb
;
331 struct pipe_viewport_state viewport
;
333 /* Framebuffer uses actual surface width/height
335 memset(&fb
, 0, sizeof fb
);
336 fb
.width
= surface
->width
;
337 fb
.height
= surface
->height
;
339 fb
.cbufs
[0] = surface
;
342 /* Viewport just touches the bit we're interested in:
344 viewport
.scale
[0] = width
/ 2.f
;
345 viewport
.scale
[1] = height
/ 2.f
;
346 viewport
.scale
[2] = 1.0;
347 viewport
.scale
[3] = 1.0;
348 viewport
.translate
[0] = width
/ 2.f
;
349 viewport
.translate
[1] = height
/ 2.f
;
350 viewport
.translate
[2] = 0.0;
351 viewport
.translate
[3] = 0.0;
353 /* Constant buffer set up to match viewport dimensions:
355 if (r
->fb_width
!= width
|| r
->fb_height
!= height
) {
356 float vs_consts
[8] = {
357 2.f
/ width
, 2.f
/ height
, 1, 1,
362 r
->fb_height
= height
;
364 renderer_set_constants(r
, PIPE_SHADER_VERTEX
,
365 vs_consts
, sizeof vs_consts
);
368 cso_set_framebuffer(r
->cso
, &fb
);
369 cso_set_viewport(r
->cso
, &viewport
);
373 renderer_set_constants(struct xa_context
*r
,
374 int shader_type
, const float *params
, int param_bytes
)
376 struct pipe_resource
**cbuf
=
377 (shader_type
== PIPE_SHADER_VERTEX
) ? &r
->vs_const_buffer
:
380 pipe_resource_reference(cbuf
, NULL
);
381 *cbuf
= pipe_buffer_create(r
->pipe
->screen
,
382 PIPE_BIND_CONSTANT_BUFFER
, PIPE_USAGE_STATIC
,
386 pipe_buffer_write(r
->pipe
, *cbuf
, 0, param_bytes
, params
);
388 pipe_set_constant_buffer(r
->pipe
, shader_type
, 0, *cbuf
);
392 renderer_copy_prepare(struct xa_context
*r
,
393 struct pipe_surface
*dst_surface
,
394 struct pipe_resource
*src_texture
,
395 const enum xa_formats src_xa_format
,
396 const enum xa_formats dst_xa_format
)
398 struct pipe_context
*pipe
= r
->pipe
;
399 struct pipe_screen
*screen
= pipe
->screen
;
400 struct xa_shader shader
;
401 uint32_t fs_traits
= FS_COMPOSITE
;
403 assert(screen
->is_format_supported(screen
, dst_surface
->format
,
405 PIPE_BIND_RENDER_TARGET
));
408 /* set misc state we care about */
410 struct pipe_blend_state blend
;
412 memset(&blend
, 0, sizeof(blend
));
413 blend
.rt
[0].rgb_src_factor
= PIPE_BLENDFACTOR_ONE
;
414 blend
.rt
[0].alpha_src_factor
= PIPE_BLENDFACTOR_ONE
;
415 blend
.rt
[0].rgb_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
416 blend
.rt
[0].alpha_dst_factor
= PIPE_BLENDFACTOR_ZERO
;
417 blend
.rt
[0].colormask
= PIPE_MASK_RGBA
;
418 cso_set_blend(r
->cso
, &blend
);
423 struct pipe_sampler_state sampler
;
425 memset(&sampler
, 0, sizeof(sampler
));
426 sampler
.wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
427 sampler
.wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
428 sampler
.wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
429 sampler
.min_mip_filter
= PIPE_TEX_MIPFILTER_NONE
;
430 sampler
.min_img_filter
= PIPE_TEX_FILTER_NEAREST
;
431 sampler
.mag_img_filter
= PIPE_TEX_FILTER_NEAREST
;
432 sampler
.normalized_coords
= 1;
433 cso_single_sampler(r
->cso
, 0, &sampler
);
434 cso_single_sampler_done(r
->cso
);
437 renderer_bind_destination(r
, dst_surface
,
438 dst_surface
->width
, dst_surface
->height
);
440 /* texture/sampler view */
442 struct pipe_sampler_view templ
;
443 struct pipe_sampler_view
*src_view
;
445 u_sampler_view_default_template(&templ
,
446 src_texture
, src_texture
->format
);
447 src_view
= pipe
->create_sampler_view(pipe
, src_texture
, &templ
);
448 cso_set_fragment_sampler_views(r
->cso
, 1, &src_view
);
449 pipe_sampler_view_reference(&src_view
, NULL
);
453 if (src_texture
->format
== PIPE_FORMAT_L8_UNORM
)
454 fs_traits
|= FS_SRC_LUMINANCE
;
455 if (dst_surface
->format
== PIPE_FORMAT_L8_UNORM
)
456 fs_traits
|= FS_DST_LUMINANCE
;
457 if (xa_format_a(dst_xa_format
) != 0 &&
458 xa_format_a(src_xa_format
) == 0)
459 fs_traits
|= FS_SRC_SET_ALPHA
;
461 shader
= xa_shaders_get(r
->shaders
, VS_COMPOSITE
, fs_traits
);
462 cso_set_vertex_shader_handle(r
->cso
, shader
.vs
);
463 cso_set_fragment_shader_handle(r
->cso
, shader
.fs
);
466 r
->attrs_per_vertex
= 2;
470 renderer_copy(struct xa_context
*r
,
475 int width
, int height
, float src_width
, float src_height
)
477 float s0
, t0
, s1
, t1
;
478 float x0
, y0
, x1
, y1
;
480 /* XXX: could put the texcoord scaling calculation into the vertex
484 s1
= (sx
+ width
) / src_width
;
485 t0
= sy
/ src_height
;
486 t1
= (sy
+ height
) / src_height
;
494 renderer_draw_conditional(r
, 4 * 8);
495 add_vertex_1tex(r
, x0
, y0
, s0
, t0
);
496 add_vertex_1tex(r
, x1
, y0
, s1
, t0
);
497 add_vertex_1tex(r
, x1
, y1
, s1
, t1
);
498 add_vertex_1tex(r
, x0
, y1
, s0
, t1
);
502 renderer_draw_yuv(struct xa_context
*r
,
508 int dst_y
, int dst_w
, int dst_h
, struct xa_surface
*srf
[])
510 const int num_attribs
= 2; /*pos + tex coord */
512 setup_vertex_data_yuv(r
,
513 src_x
, src_y
, src_w
, src_h
,
514 dst_x
, dst_y
, dst_w
, dst_h
, srf
);
516 cso_set_vertex_elements(r
->cso
, num_attribs
, r
->velems
);
517 util_draw_user_vertex_buffer(r
->cso
, r
->buffer
, PIPE_PRIM_QUADS
,
519 num_attribs
); /* attribs/vert */
524 renderer_begin_solid(struct xa_context
*r
)
527 r
->attrs_per_vertex
= 2;
531 renderer_solid(struct xa_context
*r
,
532 int x0
, int y0
, int x1
, int y1
, float *color
)
535 * debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n",
536 * x0, y0, x1, y1, color[0], color[1], color[2], color[3]); */
538 renderer_draw_conditional(r
, 4 * 8);
541 add_vertex_color(r
, x0
, y0
, color
);
543 add_vertex_color(r
, x1
, y0
, color
);
545 add_vertex_color(r
, x1
, y1
, color
);
547 add_vertex_color(r
, x0
, y1
, color
);
551 renderer_draw_flush(struct xa_context
*r
)
553 renderer_draw_conditional(r
, 0);
557 renderer_begin_textures(struct xa_context
*r
)
559 r
->attrs_per_vertex
= 1 + r
->num_bound_samplers
;
564 renderer_texture(struct xa_context
*r
,
566 int width
, int height
,
567 const float *src_matrix
,
568 const float *mask_matrix
)
570 struct pipe_sampler_view
**sampler_view
= r
->bound_sampler_views
;
574 debug_printf("src_matrix = \n");
575 debug_printf("%f, %f, %f\n", src_matrix
[0], src_matrix
[1], src_matrix
[2]);
576 debug_printf("%f, %f, %f\n", src_matrix
[3], src_matrix
[4], src_matrix
[5]);
577 debug_printf("%f, %f, %f\n", src_matrix
[6], src_matrix
[7], src_matrix
[8]);
580 debug_printf("mask_matrix = \n");
581 debug_printf("%f, %f, %f\n", mask_matrix
[0], mask_matrix
[1], mask_matrix
[2]);
582 debug_printf("%f, %f, %f\n", mask_matrix
[3], mask_matrix
[4], mask_matrix
[5]);
583 debug_printf("%f, %f, %f\n", mask_matrix
[6], mask_matrix
[7], mask_matrix
[8]);
587 switch(r
->attrs_per_vertex
) {
589 renderer_draw_conditional(r
, 4 * 8);
591 pos
[0], pos
[1], /* src */
592 pos
[4], pos
[5], /* dst */
594 sampler_view
[0]->texture
, src_matrix
);
597 renderer_draw_conditional(r
, 4 * 12);
599 pos
[0], pos
[1], /* src */
600 pos
[2], pos
[3], /* mask */
601 pos
[4], pos
[5], /* dst */
603 sampler_view
[0]->texture
, sampler_view
[1]->texture
,
604 src_matrix
, mask_matrix
);