1 /**************************************************************************
3 * Copyright 2009 Marek Olšák <maraeo@gmail.com>
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 TUNGSTEN GRAPHICS 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 **************************************************************************/
29 * Blitter utility to facilitate acceleration of the clear, surface_copy,
30 * and surface_fill functions.
35 #include "pipe/p_context.h"
36 #include "pipe/p_defines.h"
37 #include "util/u_inlines.h"
38 #include "pipe/p_shader_tokens.h"
39 #include "pipe/p_state.h"
41 #include "util/u_format.h"
42 #include "util/u_memory.h"
43 #include "util/u_math.h"
44 #include "util/u_blitter.h"
45 #include "util/u_draw_quad.h"
46 #include "util/u_pack_color.h"
47 #include "util/u_rect.h"
48 #include "util/u_sampler.h"
49 #include "util/u_simple_shaders.h"
50 #include "util/u_texture.h"
52 #define INVALID_PTR ((void*)~0)
54 struct blitter_context_priv
56 struct blitter_context blitter
;
58 struct pipe_context
*pipe
; /**< pipe context */
59 struct pipe_resource
*vbuf
; /**< quad */
61 float vertices
[4][2][4]; /**< {pos, color} or {pos, texcoord} */
63 /* Templates for various state objects. */
64 struct pipe_sampler_state template_sampler_state
;
66 /* Constant state objects. */
68 void *vs_col
; /**< Vertex shader which passes {pos, color} to the output */
69 void *vs_tex
; /**< Vertex shader which passes {pos, texcoord} to the output.*/
71 /* Fragment shaders. */
72 /* FS which outputs a color to multiple color buffers. */
73 void *fs_col
[PIPE_MAX_COLOR_BUFS
];
75 /* FS which outputs a color from a texture,
76 where the index is PIPE_TEXTURE_* to be sampled. */
77 void *fs_texfetch_col
[PIPE_MAX_TEXTURE_TYPES
];
79 /* FS which outputs a depth from a texture,
80 where the index is PIPE_TEXTURE_* to be sampled. */
81 void *fs_texfetch_depth
[PIPE_MAX_TEXTURE_TYPES
];
84 void *blend_write_color
; /**< blend state with writemask of RGBA */
85 void *blend_keep_color
; /**< blend state with writemask of 0 */
87 /* Depth stencil alpha state. */
88 void *dsa_write_depth_stencil
;
89 void *dsa_write_depth_keep_stencil
;
90 void *dsa_keep_depth_stencil
;
94 /* Sampler state for clamping to a miplevel. */
95 void *sampler_state
[PIPE_MAX_TEXTURE_LEVELS
];
97 /* Rasterizer state. */
100 struct pipe_sampler_view
*sampler_view
;
102 /* Viewport state. */
103 struct pipe_viewport_state viewport
;
106 struct pipe_clip_state clip
;
109 struct blitter_context
*util_blitter_create(struct pipe_context
*pipe
)
111 struct blitter_context_priv
*ctx
;
112 struct pipe_blend_state blend
;
113 struct pipe_depth_stencil_alpha_state dsa
;
114 struct pipe_rasterizer_state rs_state
;
115 struct pipe_sampler_state
*sampler_state
;
116 struct pipe_vertex_element velem
[2];
119 ctx
= CALLOC_STRUCT(blitter_context_priv
);
125 /* init state objects for them to be considered invalid */
126 ctx
->blitter
.saved_blend_state
= INVALID_PTR
;
127 ctx
->blitter
.saved_dsa_state
= INVALID_PTR
;
128 ctx
->blitter
.saved_rs_state
= INVALID_PTR
;
129 ctx
->blitter
.saved_fs
= INVALID_PTR
;
130 ctx
->blitter
.saved_vs
= INVALID_PTR
;
131 ctx
->blitter
.saved_velem_state
= INVALID_PTR
;
132 ctx
->blitter
.saved_fb_state
.nr_cbufs
= ~0;
133 ctx
->blitter
.saved_num_sampler_views
= ~0;
134 ctx
->blitter
.saved_num_sampler_states
= ~0;
136 /* blend state objects */
137 memset(&blend
, 0, sizeof(blend
));
138 ctx
->blend_keep_color
= pipe
->create_blend_state(pipe
, &blend
);
140 blend
.rt
[0].colormask
= PIPE_MASK_RGBA
;
141 ctx
->blend_write_color
= pipe
->create_blend_state(pipe
, &blend
);
143 /* depth stencil alpha state objects */
144 memset(&dsa
, 0, sizeof(dsa
));
145 ctx
->dsa_keep_depth_stencil
=
146 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
148 dsa
.depth
.enabled
= 1;
149 dsa
.depth
.writemask
= 1;
150 dsa
.depth
.func
= PIPE_FUNC_ALWAYS
;
151 ctx
->dsa_write_depth_keep_stencil
=
152 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
154 dsa
.stencil
[0].enabled
= 1;
155 dsa
.stencil
[0].func
= PIPE_FUNC_ALWAYS
;
156 dsa
.stencil
[0].fail_op
= PIPE_STENCIL_OP_REPLACE
;
157 dsa
.stencil
[0].zpass_op
= PIPE_STENCIL_OP_REPLACE
;
158 dsa
.stencil
[0].zfail_op
= PIPE_STENCIL_OP_REPLACE
;
159 dsa
.stencil
[0].valuemask
= 0xff;
160 dsa
.stencil
[0].writemask
= 0xff;
161 ctx
->dsa_write_depth_stencil
=
162 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
163 /* The DSA state objects which write depth and stencil are created
167 sampler_state
= &ctx
->template_sampler_state
;
168 sampler_state
->wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
169 sampler_state
->wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
170 sampler_state
->wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
171 /* The sampler state objects which sample from a specified mipmap level
172 * are created on-demand. */
174 /* rasterizer state */
175 memset(&rs_state
, 0, sizeof(rs_state
));
176 rs_state
.front_winding
= PIPE_WINDING_CW
;
177 rs_state
.cull_mode
= PIPE_WINDING_NONE
;
178 rs_state
.gl_rasterization_rules
= 1;
179 rs_state
.flatshade
= 1;
180 ctx
->rs_state
= pipe
->create_rasterizer_state(pipe
, &rs_state
);
182 /* vertex elements state */
183 memset(&velem
[0], 0, sizeof(velem
[0]) * 2);
184 for (i
= 0; i
< 2; i
++) {
185 velem
[i
].src_offset
= i
* 4 * sizeof(float);
186 velem
[i
].instance_divisor
= 0;
187 velem
[i
].vertex_buffer_index
= 0;
188 velem
[i
].src_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
190 ctx
->velem_state
= pipe
->create_vertex_elements_state(pipe
, 2, &velem
[0]);
192 /* fragment shaders are created on-demand */
196 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
197 TGSI_SEMANTIC_COLOR
};
198 const uint semantic_indices
[] = { 0, 0 };
200 util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
204 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
205 TGSI_SEMANTIC_GENERIC
};
206 const uint semantic_indices
[] = { 0, 0 };
208 util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
212 /* set invariant vertex coordinates */
213 for (i
= 0; i
< 4; i
++)
214 ctx
->vertices
[i
][0][3] = 1; /*v.w*/
216 /* create the vertex buffer */
217 ctx
->vbuf
= pipe_buffer_create(ctx
->pipe
->screen
,
218 PIPE_BIND_VERTEX_BUFFER
,
219 sizeof(ctx
->vertices
));
221 return &ctx
->blitter
;
224 void util_blitter_destroy(struct blitter_context
*blitter
)
226 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
227 struct pipe_context
*pipe
= ctx
->pipe
;
230 pipe
->delete_blend_state(pipe
, ctx
->blend_write_color
);
231 pipe
->delete_blend_state(pipe
, ctx
->blend_keep_color
);
232 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
233 pipe
->delete_depth_stencil_alpha_state(pipe
,
234 ctx
->dsa_write_depth_keep_stencil
);
235 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
237 pipe
->delete_rasterizer_state(pipe
, ctx
->rs_state
);
238 pipe
->delete_vs_state(pipe
, ctx
->vs_col
);
239 pipe
->delete_vs_state(pipe
, ctx
->vs_tex
);
240 pipe
->delete_vertex_elements_state(pipe
, ctx
->velem_state
);
242 for (i
= 0; i
< PIPE_MAX_TEXTURE_TYPES
; i
++) {
243 if (ctx
->fs_texfetch_col
[i
])
244 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_col
[i
]);
245 if (ctx
->fs_texfetch_depth
[i
])
246 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_depth
[i
]);
249 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
&& ctx
->fs_col
[i
]; i
++)
251 pipe
->delete_fs_state(pipe
, ctx
->fs_col
[i
]);
253 for (i
= 0; i
< PIPE_MAX_TEXTURE_LEVELS
; i
++)
254 if (ctx
->sampler_state
[i
])
255 pipe
->delete_sampler_state(pipe
, ctx
->sampler_state
[i
]);
257 if (ctx
->sampler_view
) {
258 pipe_sampler_view_reference(&ctx
->sampler_view
, NULL
);
261 pipe_resource_reference(&ctx
->vbuf
, NULL
);
265 static void blitter_check_saved_CSOs(struct blitter_context_priv
*ctx
)
267 /* make sure these CSOs have been saved */
268 assert(ctx
->blitter
.saved_blend_state
!= INVALID_PTR
&&
269 ctx
->blitter
.saved_dsa_state
!= INVALID_PTR
&&
270 ctx
->blitter
.saved_rs_state
!= INVALID_PTR
&&
271 ctx
->blitter
.saved_fs
!= INVALID_PTR
&&
272 ctx
->blitter
.saved_vs
!= INVALID_PTR
&&
273 ctx
->blitter
.saved_velem_state
!= INVALID_PTR
);
276 static void blitter_restore_CSOs(struct blitter_context_priv
*ctx
)
278 struct pipe_context
*pipe
= ctx
->pipe
;
280 /* restore the state objects which are always required to be saved */
281 pipe
->bind_blend_state(pipe
, ctx
->blitter
.saved_blend_state
);
282 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->blitter
.saved_dsa_state
);
283 pipe
->bind_rasterizer_state(pipe
, ctx
->blitter
.saved_rs_state
);
284 pipe
->bind_fs_state(pipe
, ctx
->blitter
.saved_fs
);
285 pipe
->bind_vs_state(pipe
, ctx
->blitter
.saved_vs
);
286 pipe
->bind_vertex_elements_state(pipe
, ctx
->blitter
.saved_velem_state
);
288 ctx
->blitter
.saved_blend_state
= INVALID_PTR
;
289 ctx
->blitter
.saved_dsa_state
= INVALID_PTR
;
290 ctx
->blitter
.saved_rs_state
= INVALID_PTR
;
291 ctx
->blitter
.saved_fs
= INVALID_PTR
;
292 ctx
->blitter
.saved_vs
= INVALID_PTR
;
293 ctx
->blitter
.saved_velem_state
= INVALID_PTR
;
295 pipe
->set_stencil_ref(pipe
, &ctx
->blitter
.saved_stencil_ref
);
297 pipe
->set_viewport_state(pipe
, &ctx
->blitter
.saved_viewport
);
298 pipe
->set_clip_state(pipe
, &ctx
->blitter
.saved_clip
);
300 /* restore the state objects which are required to be saved before copy/fill
302 if (ctx
->blitter
.saved_fb_state
.nr_cbufs
!= ~0) {
303 pipe
->set_framebuffer_state(pipe
, &ctx
->blitter
.saved_fb_state
);
304 ctx
->blitter
.saved_fb_state
.nr_cbufs
= ~0;
307 if (ctx
->blitter
.saved_num_sampler_states
!= ~0) {
308 pipe
->bind_fragment_sampler_states(pipe
,
309 ctx
->blitter
.saved_num_sampler_states
,
310 ctx
->blitter
.saved_sampler_states
);
311 ctx
->blitter
.saved_num_sampler_states
= ~0;
314 if (ctx
->blitter
.saved_num_sampler_views
!= ~0) {
315 pipe
->set_fragment_sampler_views(pipe
,
316 ctx
->blitter
.saved_num_sampler_views
,
317 ctx
->blitter
.saved_sampler_views
);
318 ctx
->blitter
.saved_num_sampler_views
= ~0;
322 static void blitter_set_rectangle(struct blitter_context_priv
*ctx
,
323 unsigned x1
, unsigned y1
,
324 unsigned x2
, unsigned y2
,
325 unsigned width
, unsigned height
,
330 /* set vertex positions */
331 ctx
->vertices
[0][0][0] = (float)x1
/ width
* 2.0f
- 1.0f
; /*v0.x*/
332 ctx
->vertices
[0][0][1] = (float)y1
/ height
* 2.0f
- 1.0f
; /*v0.y*/
334 ctx
->vertices
[1][0][0] = (float)x2
/ width
* 2.0f
- 1.0f
; /*v1.x*/
335 ctx
->vertices
[1][0][1] = (float)y1
/ height
* 2.0f
- 1.0f
; /*v1.y*/
337 ctx
->vertices
[2][0][0] = (float)x2
/ width
* 2.0f
- 1.0f
; /*v2.x*/
338 ctx
->vertices
[2][0][1] = (float)y2
/ height
* 2.0f
- 1.0f
; /*v2.y*/
340 ctx
->vertices
[3][0][0] = (float)x1
/ width
* 2.0f
- 1.0f
; /*v3.x*/
341 ctx
->vertices
[3][0][1] = (float)y2
/ height
* 2.0f
- 1.0f
; /*v3.y*/
343 for (i
= 0; i
< 4; i
++)
344 ctx
->vertices
[i
][0][2] = depth
; /*z*/
347 ctx
->viewport
.scale
[0] = 0.5f
* width
;
348 ctx
->viewport
.scale
[1] = 0.5f
* height
;
349 ctx
->viewport
.scale
[2] = 1.0f
;
350 ctx
->viewport
.scale
[3] = 1.0f
;
351 ctx
->viewport
.translate
[0] = 0.5f
* width
;
352 ctx
->viewport
.translate
[1] = 0.5f
* height
;
353 ctx
->viewport
.translate
[2] = 0.0f
;
354 ctx
->viewport
.translate
[3] = 0.0f
;
355 ctx
->pipe
->set_viewport_state(ctx
->pipe
, &ctx
->viewport
);
358 ctx
->pipe
->set_clip_state(ctx
->pipe
, &ctx
->clip
);
361 static void blitter_set_clear_color(struct blitter_context_priv
*ctx
,
366 for (i
= 0; i
< 4; i
++) {
367 ctx
->vertices
[i
][1][0] = rgba
[0];
368 ctx
->vertices
[i
][1][1] = rgba
[1];
369 ctx
->vertices
[i
][1][2] = rgba
[2];
370 ctx
->vertices
[i
][1][3] = rgba
[3];
374 static void blitter_set_texcoords_2d(struct blitter_context_priv
*ctx
,
375 struct pipe_surface
*surf
,
376 unsigned x1
, unsigned y1
,
377 unsigned x2
, unsigned y2
)
380 float s1
= x1
/ (float)surf
->width
;
381 float t1
= y1
/ (float)surf
->height
;
382 float s2
= x2
/ (float)surf
->width
;
383 float t2
= y2
/ (float)surf
->height
;
385 ctx
->vertices
[0][1][0] = s1
; /*t0.s*/
386 ctx
->vertices
[0][1][1] = t1
; /*t0.t*/
388 ctx
->vertices
[1][1][0] = s2
; /*t1.s*/
389 ctx
->vertices
[1][1][1] = t1
; /*t1.t*/
391 ctx
->vertices
[2][1][0] = s2
; /*t2.s*/
392 ctx
->vertices
[2][1][1] = t2
; /*t2.t*/
394 ctx
->vertices
[3][1][0] = s1
; /*t3.s*/
395 ctx
->vertices
[3][1][1] = t2
; /*t3.t*/
397 for (i
= 0; i
< 4; i
++) {
398 ctx
->vertices
[i
][1][2] = 0; /*r*/
399 ctx
->vertices
[i
][1][3] = 1; /*q*/
403 static void blitter_set_texcoords_3d(struct blitter_context_priv
*ctx
,
404 struct pipe_surface
*surf
,
405 unsigned x1
, unsigned y1
,
406 unsigned x2
, unsigned y2
)
409 float depth
= u_minify(surf
->texture
->depth0
, surf
->level
);
410 float r
= surf
->zslice
/ depth
;
412 blitter_set_texcoords_2d(ctx
, surf
, x1
, y1
, x2
, y2
);
414 for (i
= 0; i
< 4; i
++)
415 ctx
->vertices
[i
][1][2] = r
; /*r*/
418 static void blitter_set_texcoords_cube(struct blitter_context_priv
*ctx
,
419 struct pipe_surface
*surf
,
420 unsigned x1
, unsigned y1
,
421 unsigned x2
, unsigned y2
)
424 float s1
= x1
/ (float)surf
->width
;
425 float t1
= y1
/ (float)surf
->height
;
426 float s2
= x2
/ (float)surf
->width
;
427 float t2
= y2
/ (float)surf
->height
;
439 util_map_texcoords2d_onto_cubemap(surf
->face
,
440 /* pointer, stride in floats */
442 &ctx
->vertices
[0][1][0], 8);
444 for (i
= 0; i
< 4; i
++)
445 ctx
->vertices
[i
][1][3] = 1; /*q*/
448 static void blitter_draw_quad(struct blitter_context_priv
*ctx
)
450 struct pipe_context
*pipe
= ctx
->pipe
;
452 /* write vertices and draw them */
453 pipe_buffer_write(pipe
, ctx
->vbuf
,
454 0, sizeof(ctx
->vertices
), ctx
->vertices
);
456 util_draw_vertex_buffer(pipe
, ctx
->vbuf
, 0, PIPE_PRIM_TRIANGLE_FAN
,
458 2); /* attribs/vert */
462 void **blitter_get_sampler_state(struct blitter_context_priv
*ctx
,
465 struct pipe_context
*pipe
= ctx
->pipe
;
466 struct pipe_sampler_state
*sampler_state
= &ctx
->template_sampler_state
;
468 assert(miplevel
< PIPE_MAX_TEXTURE_LEVELS
);
470 /* Create the sampler state on-demand. */
471 if (!ctx
->sampler_state
[miplevel
]) {
472 sampler_state
->lod_bias
= miplevel
;
473 sampler_state
->min_lod
= miplevel
;
474 sampler_state
->max_lod
= miplevel
;
476 ctx
->sampler_state
[miplevel
] = pipe
->create_sampler_state(pipe
,
480 /* Return void** so that it can be passed to bind_fragment_sampler_states
482 return &ctx
->sampler_state
[miplevel
];
486 void *blitter_get_fs_col(struct blitter_context_priv
*ctx
, unsigned num_cbufs
)
488 struct pipe_context
*pipe
= ctx
->pipe
;
489 unsigned index
= num_cbufs
? num_cbufs
- 1 : 0;
491 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
493 if (!ctx
->fs_col
[index
])
495 util_make_fragment_clonecolor_shader(pipe
, num_cbufs
);
497 return ctx
->fs_col
[index
];
501 void *blitter_get_fs_texfetch_col(struct blitter_context_priv
*ctx
,
504 struct pipe_context
*pipe
= ctx
->pipe
;
506 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
508 /* Create the fragment shader on-demand. */
509 if (!ctx
->fs_texfetch_col
[tex_target
]) {
510 switch (tex_target
) {
511 case PIPE_TEXTURE_1D
:
512 ctx
->fs_texfetch_col
[PIPE_TEXTURE_1D
] =
513 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_1D
);
515 case PIPE_TEXTURE_2D
:
516 ctx
->fs_texfetch_col
[PIPE_TEXTURE_2D
] =
517 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_2D
);
519 case PIPE_TEXTURE_3D
:
520 ctx
->fs_texfetch_col
[PIPE_TEXTURE_3D
] =
521 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_3D
);
523 case PIPE_TEXTURE_CUBE
:
524 ctx
->fs_texfetch_col
[PIPE_TEXTURE_CUBE
] =
525 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_CUBE
);
531 return ctx
->fs_texfetch_col
[tex_target
];
535 void *blitter_get_fs_texfetch_depth(struct blitter_context_priv
*ctx
,
538 struct pipe_context
*pipe
= ctx
->pipe
;
540 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
542 /* Create the fragment shader on-demand. */
543 if (!ctx
->fs_texfetch_depth
[tex_target
]) {
544 switch (tex_target
) {
545 case PIPE_TEXTURE_1D
:
546 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_1D
] =
547 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_1D
);
549 case PIPE_TEXTURE_2D
:
550 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_2D
] =
551 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_2D
);
553 case PIPE_TEXTURE_3D
:
554 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_3D
] =
555 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_3D
);
557 case PIPE_TEXTURE_CUBE
:
558 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_CUBE
] =
559 util_make_fragment_tex_shader_writedepth(pipe
,TGSI_TEXTURE_CUBE
);
565 return ctx
->fs_texfetch_depth
[tex_target
];
568 void util_blitter_clear(struct blitter_context
*blitter
,
569 unsigned width
, unsigned height
,
571 unsigned clear_buffers
,
573 double depth
, unsigned stencil
)
575 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
576 struct pipe_context
*pipe
= ctx
->pipe
;
577 struct pipe_stencil_ref sr
= { { 0 } };
579 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
581 blitter_check_saved_CSOs(ctx
);
584 if (clear_buffers
& PIPE_CLEAR_COLOR
)
585 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
587 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
589 if (clear_buffers
& PIPE_CLEAR_DEPTHSTENCIL
) {
590 sr
.ref_value
[0] = stencil
& 0xff;
591 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
592 pipe
->set_stencil_ref(pipe
, &sr
);
595 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
597 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
598 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
599 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, num_cbufs
));
600 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
602 blitter_set_clear_color(ctx
, rgba
);
603 blitter_set_rectangle(ctx
, 0, 0, width
, height
, width
, height
, depth
);
604 blitter_draw_quad(ctx
);
605 blitter_restore_CSOs(ctx
);
609 is_overlap(unsigned sx1
, unsigned sx2
, unsigned sy1
, unsigned sy2
,
610 unsigned dx1
, unsigned dx2
, unsigned dy1
, unsigned dy2
)
612 if (sx1
>= dx2
|| sx2
<= dx1
|| sy1
>= dy2
|| sy2
<= dy1
) {
619 static void util_blitter_do_copy(struct blitter_context
*blitter
,
620 struct pipe_surface
*dst
,
621 unsigned dstx
, unsigned dsty
,
622 struct pipe_surface
*src
,
623 unsigned srcx
, unsigned srcy
,
624 unsigned width
, unsigned height
,
627 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
628 struct pipe_context
*pipe
= ctx
->pipe
;
629 struct pipe_framebuffer_state fb_state
;
630 struct pipe_sampler_view viewTempl
, *view
;
632 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
633 assert(blitter
->saved_num_sampler_views
!= ~0);
634 assert(blitter
->saved_num_sampler_states
!= ~0);
635 assert(src
->texture
->target
< PIPE_MAX_TEXTURE_TYPES
);
638 fb_state
.width
= dst
->width
;
639 fb_state
.height
= dst
->height
;
642 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
643 pipe
->bind_depth_stencil_alpha_state(pipe
,
644 ctx
->dsa_write_depth_keep_stencil
);
645 pipe
->bind_fs_state(pipe
,
646 blitter_get_fs_texfetch_depth(ctx
, src
->texture
->target
));
648 fb_state
.nr_cbufs
= 0;
649 fb_state
.zsbuf
= dst
;
651 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
652 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
653 pipe
->bind_fs_state(pipe
,
654 blitter_get_fs_texfetch_col(ctx
, src
->texture
->target
));
656 fb_state
.nr_cbufs
= 1;
657 fb_state
.cbufs
[0] = dst
;
661 u_sampler_view_default_template(&viewTempl
,
663 src
->texture
->format
);
664 view
= pipe
->create_sampler_view(pipe
,
668 if (ctx
->sampler_view
) {
669 pipe_sampler_view_reference(&ctx
->sampler_view
, NULL
);
671 ctx
->sampler_view
= view
;
673 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
674 pipe
->bind_vs_state(pipe
, ctx
->vs_tex
);
675 pipe
->bind_fragment_sampler_states(pipe
, 1,
676 blitter_get_sampler_state(ctx
, src
->level
));
677 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
678 pipe
->set_fragment_sampler_views(pipe
, 1, &view
);
679 pipe
->set_framebuffer_state(pipe
, &fb_state
);
681 /* set texture coordinates */
682 switch (src
->texture
->target
) {
683 case PIPE_TEXTURE_1D
:
684 case PIPE_TEXTURE_2D
:
685 blitter_set_texcoords_2d(ctx
, src
, srcx
, srcy
,
686 srcx
+width
, srcy
+height
);
688 case PIPE_TEXTURE_3D
:
689 blitter_set_texcoords_3d(ctx
, src
, srcx
, srcy
,
690 srcx
+width
, srcy
+height
);
692 case PIPE_TEXTURE_CUBE
:
693 blitter_set_texcoords_cube(ctx
, src
, srcx
, srcy
,
694 srcx
+width
, srcy
+height
);
700 blitter_set_rectangle(ctx
, dstx
, dsty
, dstx
+width
, dsty
+height
, dst
->width
, dst
->height
, 0);
701 blitter_draw_quad(ctx
);
705 static void util_blitter_overlap_copy(struct blitter_context
*blitter
,
706 struct pipe_surface
*dst
,
707 unsigned dstx
, unsigned dsty
,
708 struct pipe_surface
*src
,
709 unsigned srcx
, unsigned srcy
,
710 unsigned width
, unsigned height
)
712 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
713 struct pipe_context
*pipe
= ctx
->pipe
;
714 struct pipe_screen
*screen
= pipe
->screen
;
716 struct pipe_resource texTemp
;
717 struct pipe_resource
*texture
;
718 struct pipe_surface
*tex_surf
;
720 /* check whether the states are properly saved */
721 blitter_check_saved_CSOs(ctx
);
723 memset(&texTemp
, 0, sizeof(texTemp
));
724 texTemp
.target
= PIPE_TEXTURE_2D
;
725 texTemp
.format
= dst
->texture
->format
; /* XXX verify supported by driver! */
726 texTemp
.last_level
= 0;
727 texTemp
.width0
= width
;
728 texTemp
.height0
= height
;
731 texture
= screen
->resource_create(screen
, &texTemp
);
735 tex_surf
= screen
->get_tex_surface(screen
, texture
, 0, 0, 0,
736 PIPE_BIND_BLIT_SOURCE
|
737 PIPE_BIND_BLIT_DESTINATION
);
739 /* blit from the src to the temp */
740 util_blitter_do_copy(blitter
, tex_surf
, 0, 0,
744 util_blitter_do_copy(blitter
, dst
, dstx
, dsty
,
748 pipe_surface_reference(&tex_surf
, NULL
);
749 pipe_resource_reference(&texture
, NULL
);
750 blitter_restore_CSOs(ctx
);
753 void util_blitter_copy(struct blitter_context
*blitter
,
754 struct pipe_surface
*dst
,
755 unsigned dstx
, unsigned dsty
,
756 struct pipe_surface
*src
,
757 unsigned srcx
, unsigned srcy
,
758 unsigned width
, unsigned height
,
759 boolean ignore_stencil
)
761 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
762 struct pipe_context
*pipe
= ctx
->pipe
;
763 struct pipe_screen
*screen
= pipe
->screen
;
764 boolean is_stencil
, is_depth
;
765 unsigned dst_tex_usage
;
767 /* give up if textures are not set */
768 assert(dst
->texture
&& src
->texture
);
769 if (!dst
->texture
|| !src
->texture
)
772 if (dst
->texture
== src
->texture
) {
773 if (is_overlap(srcx
, srcx
+ width
, srcy
, srcy
+ height
,
774 dstx
, dstx
+ width
, dsty
, dsty
+ height
)) {
775 util_blitter_overlap_copy(blitter
, dst
, dstx
, dsty
, src
, srcx
, srcy
,
781 is_depth
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 0) != 0;
782 is_stencil
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 1) != 0;
783 dst_tex_usage
= is_depth
|| is_stencil
? PIPE_BIND_DEPTH_STENCIL
:
784 PIPE_BIND_RENDER_TARGET
;
786 /* check if we can sample from and render to the surfaces */
787 /* (assuming copying a stencil buffer is not possible) */
788 if ((!ignore_stencil
&& is_stencil
) ||
789 !screen
->is_format_supported(screen
, dst
->format
, dst
->texture
->target
,
791 !screen
->is_format_supported(screen
, src
->format
, src
->texture
->target
,
792 PIPE_BIND_SAMPLER_VIEW
, 0)) {
793 util_surface_copy(pipe
, FALSE
, dst
, dstx
, dsty
, src
, srcx
, srcy
,
798 /* check whether the states are properly saved */
799 blitter_check_saved_CSOs(ctx
);
800 util_blitter_do_copy(blitter
,
803 width
, height
, is_depth
);
804 blitter_restore_CSOs(ctx
);
807 void util_blitter_fill(struct blitter_context
*blitter
,
808 struct pipe_surface
*dst
,
809 unsigned dstx
, unsigned dsty
,
810 unsigned width
, unsigned height
,
813 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
814 struct pipe_context
*pipe
= ctx
->pipe
;
815 struct pipe_screen
*screen
= pipe
->screen
;
816 struct pipe_framebuffer_state fb_state
;
818 ubyte ub_rgba
[4] = {0};
819 union util_color color
;
822 assert(dst
->texture
);
826 /* check if we can render to the surface */
827 if (util_format_is_depth_or_stencil(dst
->format
) || /* unlikely, but you never know */
828 !screen
->is_format_supported(screen
, dst
->format
, dst
->texture
->target
,
829 PIPE_BIND_RENDER_TARGET
, 0)) {
830 util_surface_fill(pipe
, dst
, dstx
, dsty
, width
, height
, value
);
834 /* unpack the color */
836 util_unpack_color_ub(dst
->format
, &color
,
837 ub_rgba
, ub_rgba
+1, ub_rgba
+2, ub_rgba
+3);
838 for (i
= 0; i
< 4; i
++)
839 rgba
[i
] = ubyte_to_float(ub_rgba
[i
]);
841 /* check the saved state */
842 blitter_check_saved_CSOs(ctx
);
843 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
846 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
847 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
848 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
849 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, 1));
850 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
851 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
853 /* set a framebuffer state */
854 fb_state
.width
= dst
->width
;
855 fb_state
.height
= dst
->height
;
856 fb_state
.nr_cbufs
= 1;
857 fb_state
.cbufs
[0] = dst
;
859 pipe
->set_framebuffer_state(pipe
, &fb_state
);
861 blitter_set_clear_color(ctx
, rgba
);
862 blitter_set_rectangle(ctx
, 0, 0, width
, height
, dst
->width
, dst
->height
, 0);
863 blitter_draw_quad(ctx
);
864 blitter_restore_CSOs(ctx
);