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_buffer
*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
,
219 PIPE_BUFFER_USAGE_VERTEX
,
220 sizeof(ctx
->vertices
));
222 return &ctx
->blitter
;
225 void util_blitter_destroy(struct blitter_context
*blitter
)
227 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
228 struct pipe_context
*pipe
= ctx
->pipe
;
231 pipe
->delete_blend_state(pipe
, ctx
->blend_write_color
);
232 pipe
->delete_blend_state(pipe
, ctx
->blend_keep_color
);
233 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
234 pipe
->delete_depth_stencil_alpha_state(pipe
,
235 ctx
->dsa_write_depth_keep_stencil
);
236 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
238 pipe
->delete_rasterizer_state(pipe
, ctx
->rs_state
);
239 pipe
->delete_vs_state(pipe
, ctx
->vs_col
);
240 pipe
->delete_vs_state(pipe
, ctx
->vs_tex
);
241 pipe
->delete_vertex_elements_state(pipe
, ctx
->velem_state
);
243 for (i
= 0; i
< PIPE_MAX_TEXTURE_TYPES
; i
++) {
244 if (ctx
->fs_texfetch_col
[i
])
245 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_col
[i
]);
246 if (ctx
->fs_texfetch_depth
[i
])
247 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_depth
[i
]);
250 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
&& ctx
->fs_col
[i
]; i
++)
252 pipe
->delete_fs_state(pipe
, ctx
->fs_col
[i
]);
254 for (i
= 0; i
< PIPE_MAX_TEXTURE_LEVELS
; i
++)
255 if (ctx
->sampler_state
[i
])
256 pipe
->delete_sampler_state(pipe
, ctx
->sampler_state
[i
]);
258 if (ctx
->sampler_view
) {
259 pipe_sampler_view_reference(&ctx
->sampler_view
, NULL
);
262 pipe_buffer_reference(&ctx
->vbuf
, NULL
);
266 static void blitter_check_saved_CSOs(struct blitter_context_priv
*ctx
)
268 /* make sure these CSOs have been saved */
269 assert(ctx
->blitter
.saved_blend_state
!= INVALID_PTR
&&
270 ctx
->blitter
.saved_dsa_state
!= INVALID_PTR
&&
271 ctx
->blitter
.saved_rs_state
!= INVALID_PTR
&&
272 ctx
->blitter
.saved_fs
!= INVALID_PTR
&&
273 ctx
->blitter
.saved_vs
!= INVALID_PTR
&&
274 ctx
->blitter
.saved_velem_state
!= INVALID_PTR
);
277 static void blitter_restore_CSOs(struct blitter_context_priv
*ctx
)
279 struct pipe_context
*pipe
= ctx
->pipe
;
281 /* restore the state objects which are always required to be saved */
282 pipe
->bind_blend_state(pipe
, ctx
->blitter
.saved_blend_state
);
283 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->blitter
.saved_dsa_state
);
284 pipe
->bind_rasterizer_state(pipe
, ctx
->blitter
.saved_rs_state
);
285 pipe
->bind_fs_state(pipe
, ctx
->blitter
.saved_fs
);
286 pipe
->bind_vs_state(pipe
, ctx
->blitter
.saved_vs
);
287 pipe
->bind_vertex_elements_state(pipe
, ctx
->blitter
.saved_velem_state
);
289 ctx
->blitter
.saved_blend_state
= INVALID_PTR
;
290 ctx
->blitter
.saved_dsa_state
= INVALID_PTR
;
291 ctx
->blitter
.saved_rs_state
= INVALID_PTR
;
292 ctx
->blitter
.saved_fs
= INVALID_PTR
;
293 ctx
->blitter
.saved_vs
= INVALID_PTR
;
294 ctx
->blitter
.saved_velem_state
= INVALID_PTR
;
296 pipe
->set_stencil_ref(pipe
, &ctx
->blitter
.saved_stencil_ref
);
298 pipe
->set_viewport_state(pipe
, &ctx
->blitter
.saved_viewport
);
299 pipe
->set_clip_state(pipe
, &ctx
->blitter
.saved_clip
);
301 /* restore the state objects which are required to be saved before copy/fill
303 if (ctx
->blitter
.saved_fb_state
.nr_cbufs
!= ~0) {
304 pipe
->set_framebuffer_state(pipe
, &ctx
->blitter
.saved_fb_state
);
305 ctx
->blitter
.saved_fb_state
.nr_cbufs
= ~0;
308 if (ctx
->blitter
.saved_num_sampler_states
!= ~0) {
309 pipe
->bind_fragment_sampler_states(pipe
,
310 ctx
->blitter
.saved_num_sampler_states
,
311 ctx
->blitter
.saved_sampler_states
);
312 ctx
->blitter
.saved_num_sampler_states
= ~0;
315 if (ctx
->blitter
.saved_num_sampler_views
!= ~0) {
316 pipe
->set_fragment_sampler_views(pipe
,
317 ctx
->blitter
.saved_num_sampler_views
,
318 ctx
->blitter
.saved_sampler_views
);
319 ctx
->blitter
.saved_num_sampler_views
= ~0;
323 static void blitter_set_rectangle(struct blitter_context_priv
*ctx
,
324 unsigned x1
, unsigned y1
,
325 unsigned x2
, unsigned y2
,
326 unsigned width
, unsigned height
,
331 /* set vertex positions */
332 ctx
->vertices
[0][0][0] = (float)x1
/ width
* 2.0f
- 1.0f
; /*v0.x*/
333 ctx
->vertices
[0][0][1] = (float)y1
/ height
* 2.0f
- 1.0f
; /*v0.y*/
335 ctx
->vertices
[1][0][0] = (float)x2
/ width
* 2.0f
- 1.0f
; /*v1.x*/
336 ctx
->vertices
[1][0][1] = (float)y1
/ height
* 2.0f
- 1.0f
; /*v1.y*/
338 ctx
->vertices
[2][0][0] = (float)x2
/ width
* 2.0f
- 1.0f
; /*v2.x*/
339 ctx
->vertices
[2][0][1] = (float)y2
/ height
* 2.0f
- 1.0f
; /*v2.y*/
341 ctx
->vertices
[3][0][0] = (float)x1
/ width
* 2.0f
- 1.0f
; /*v3.x*/
342 ctx
->vertices
[3][0][1] = (float)y2
/ height
* 2.0f
- 1.0f
; /*v3.y*/
344 for (i
= 0; i
< 4; i
++)
345 ctx
->vertices
[i
][0][2] = depth
; /*z*/
348 ctx
->viewport
.scale
[0] = 0.5f
* width
;
349 ctx
->viewport
.scale
[1] = 0.5f
* height
;
350 ctx
->viewport
.scale
[2] = 1.0f
;
351 ctx
->viewport
.scale
[3] = 1.0f
;
352 ctx
->viewport
.translate
[0] = 0.5f
* width
;
353 ctx
->viewport
.translate
[1] = 0.5f
* height
;
354 ctx
->viewport
.translate
[2] = 0.0f
;
355 ctx
->viewport
.translate
[3] = 0.0f
;
356 ctx
->pipe
->set_viewport_state(ctx
->pipe
, &ctx
->viewport
);
359 ctx
->pipe
->set_clip_state(ctx
->pipe
, &ctx
->clip
);
362 static void blitter_set_clear_color(struct blitter_context_priv
*ctx
,
367 for (i
= 0; i
< 4; i
++) {
368 ctx
->vertices
[i
][1][0] = rgba
[0];
369 ctx
->vertices
[i
][1][1] = rgba
[1];
370 ctx
->vertices
[i
][1][2] = rgba
[2];
371 ctx
->vertices
[i
][1][3] = rgba
[3];
375 static void blitter_set_texcoords_2d(struct blitter_context_priv
*ctx
,
376 struct pipe_surface
*surf
,
377 unsigned x1
, unsigned y1
,
378 unsigned x2
, unsigned y2
)
381 float s1
= x1
/ (float)surf
->width
;
382 float t1
= y1
/ (float)surf
->height
;
383 float s2
= x2
/ (float)surf
->width
;
384 float t2
= y2
/ (float)surf
->height
;
386 ctx
->vertices
[0][1][0] = s1
; /*t0.s*/
387 ctx
->vertices
[0][1][1] = t1
; /*t0.t*/
389 ctx
->vertices
[1][1][0] = s2
; /*t1.s*/
390 ctx
->vertices
[1][1][1] = t1
; /*t1.t*/
392 ctx
->vertices
[2][1][0] = s2
; /*t2.s*/
393 ctx
->vertices
[2][1][1] = t2
; /*t2.t*/
395 ctx
->vertices
[3][1][0] = s1
; /*t3.s*/
396 ctx
->vertices
[3][1][1] = t2
; /*t3.t*/
398 for (i
= 0; i
< 4; i
++) {
399 ctx
->vertices
[i
][1][2] = 0; /*r*/
400 ctx
->vertices
[i
][1][3] = 1; /*q*/
404 static void blitter_set_texcoords_3d(struct blitter_context_priv
*ctx
,
405 struct pipe_surface
*surf
,
406 unsigned x1
, unsigned y1
,
407 unsigned x2
, unsigned y2
)
410 float depth
= u_minify(surf
->texture
->depth0
, surf
->level
);
411 float r
= surf
->zslice
/ depth
;
413 blitter_set_texcoords_2d(ctx
, surf
, x1
, y1
, x2
, y2
);
415 for (i
= 0; i
< 4; i
++)
416 ctx
->vertices
[i
][1][2] = r
; /*r*/
419 static void blitter_set_texcoords_cube(struct blitter_context_priv
*ctx
,
420 struct pipe_surface
*surf
,
421 unsigned x1
, unsigned y1
,
422 unsigned x2
, unsigned y2
)
425 float s1
= x1
/ (float)surf
->width
;
426 float t1
= y1
/ (float)surf
->height
;
427 float s2
= x2
/ (float)surf
->width
;
428 float t2
= y2
/ (float)surf
->height
;
440 util_map_texcoords2d_onto_cubemap(surf
->face
,
441 /* pointer, stride in floats */
443 &ctx
->vertices
[0][1][0], 8);
445 for (i
= 0; i
< 4; i
++)
446 ctx
->vertices
[i
][1][3] = 1; /*q*/
449 static void blitter_draw_quad(struct blitter_context_priv
*ctx
)
451 struct pipe_context
*pipe
= ctx
->pipe
;
453 /* write vertices and draw them */
454 pipe_buffer_write(pipe
->screen
, ctx
->vbuf
,
455 0, sizeof(ctx
->vertices
), ctx
->vertices
);
457 util_draw_vertex_buffer(pipe
, ctx
->vbuf
, 0, PIPE_PRIM_TRIANGLE_FAN
,
459 2); /* attribs/vert */
463 void **blitter_get_sampler_state(struct blitter_context_priv
*ctx
,
466 struct pipe_context
*pipe
= ctx
->pipe
;
467 struct pipe_sampler_state
*sampler_state
= &ctx
->template_sampler_state
;
469 assert(miplevel
< PIPE_MAX_TEXTURE_LEVELS
);
471 /* Create the sampler state on-demand. */
472 if (!ctx
->sampler_state
[miplevel
]) {
473 sampler_state
->lod_bias
= miplevel
;
474 sampler_state
->min_lod
= miplevel
;
475 sampler_state
->max_lod
= miplevel
;
477 ctx
->sampler_state
[miplevel
] = pipe
->create_sampler_state(pipe
,
481 /* Return void** so that it can be passed to bind_fragment_sampler_states
483 return &ctx
->sampler_state
[miplevel
];
487 void *blitter_get_fs_col(struct blitter_context_priv
*ctx
, unsigned num_cbufs
)
489 struct pipe_context
*pipe
= ctx
->pipe
;
490 unsigned index
= num_cbufs
? num_cbufs
- 1 : 0;
492 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
494 if (!ctx
->fs_col
[index
])
496 util_make_fragment_clonecolor_shader(pipe
, num_cbufs
);
498 return ctx
->fs_col
[index
];
502 void *blitter_get_fs_texfetch_col(struct blitter_context_priv
*ctx
,
505 struct pipe_context
*pipe
= ctx
->pipe
;
507 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
509 /* Create the fragment shader on-demand. */
510 if (!ctx
->fs_texfetch_col
[tex_target
]) {
511 switch (tex_target
) {
512 case PIPE_TEXTURE_1D
:
513 ctx
->fs_texfetch_col
[PIPE_TEXTURE_1D
] =
514 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_1D
);
516 case PIPE_TEXTURE_2D
:
517 ctx
->fs_texfetch_col
[PIPE_TEXTURE_2D
] =
518 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_2D
);
520 case PIPE_TEXTURE_3D
:
521 ctx
->fs_texfetch_col
[PIPE_TEXTURE_3D
] =
522 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_3D
);
524 case PIPE_TEXTURE_CUBE
:
525 ctx
->fs_texfetch_col
[PIPE_TEXTURE_CUBE
] =
526 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_CUBE
);
532 return ctx
->fs_texfetch_col
[tex_target
];
536 void *blitter_get_fs_texfetch_depth(struct blitter_context_priv
*ctx
,
539 struct pipe_context
*pipe
= ctx
->pipe
;
541 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
543 /* Create the fragment shader on-demand. */
544 if (!ctx
->fs_texfetch_depth
[tex_target
]) {
545 switch (tex_target
) {
546 case PIPE_TEXTURE_1D
:
547 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_1D
] =
548 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_1D
);
550 case PIPE_TEXTURE_2D
:
551 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_2D
] =
552 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_2D
);
554 case PIPE_TEXTURE_3D
:
555 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_3D
] =
556 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_3D
);
558 case PIPE_TEXTURE_CUBE
:
559 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_CUBE
] =
560 util_make_fragment_tex_shader_writedepth(pipe
,TGSI_TEXTURE_CUBE
);
566 return ctx
->fs_texfetch_depth
[tex_target
];
569 void util_blitter_clear(struct blitter_context
*blitter
,
570 unsigned width
, unsigned height
,
572 unsigned clear_buffers
,
574 double depth
, unsigned stencil
)
576 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
577 struct pipe_context
*pipe
= ctx
->pipe
;
578 struct pipe_stencil_ref sr
= { { 0 } };
580 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
582 blitter_check_saved_CSOs(ctx
);
585 if (clear_buffers
& PIPE_CLEAR_COLOR
)
586 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
588 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
590 if (clear_buffers
& PIPE_CLEAR_DEPTHSTENCIL
) {
591 sr
.ref_value
[0] = stencil
& 0xff;
592 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
593 pipe
->set_stencil_ref(pipe
, &sr
);
596 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
598 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
599 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
600 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, num_cbufs
));
601 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
603 blitter_set_clear_color(ctx
, rgba
);
604 blitter_set_rectangle(ctx
, 0, 0, width
, height
, width
, height
, depth
);
605 blitter_draw_quad(ctx
);
606 blitter_restore_CSOs(ctx
);
610 is_overlap(unsigned sx1
, unsigned sx2
, unsigned sy1
, unsigned sy2
,
611 unsigned dx1
, unsigned dx2
, unsigned dy1
, unsigned dy2
)
613 if (sx1
>= dx2
|| sx2
<= dx1
|| sy1
>= dy2
|| sy2
<= dy1
) {
620 static void util_blitter_do_copy(struct blitter_context
*blitter
,
621 struct pipe_surface
*dst
,
622 unsigned dstx
, unsigned dsty
,
623 struct pipe_surface
*src
,
624 unsigned srcx
, unsigned srcy
,
625 unsigned width
, unsigned height
,
628 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
629 struct pipe_context
*pipe
= ctx
->pipe
;
630 struct pipe_framebuffer_state fb_state
;
631 struct pipe_sampler_view viewTempl
, *view
;
633 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
634 assert(blitter
->saved_num_sampler_views
!= ~0);
635 assert(blitter
->saved_num_sampler_states
!= ~0);
636 assert(src
->texture
->target
< PIPE_MAX_TEXTURE_TYPES
);
639 fb_state
.width
= dst
->width
;
640 fb_state
.height
= dst
->height
;
643 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
644 pipe
->bind_depth_stencil_alpha_state(pipe
,
645 ctx
->dsa_write_depth_keep_stencil
);
646 pipe
->bind_fs_state(pipe
,
647 blitter_get_fs_texfetch_depth(ctx
, src
->texture
->target
));
649 fb_state
.nr_cbufs
= 0;
650 fb_state
.zsbuf
= dst
;
652 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
653 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
654 pipe
->bind_fs_state(pipe
,
655 blitter_get_fs_texfetch_col(ctx
, src
->texture
->target
));
657 fb_state
.nr_cbufs
= 1;
658 fb_state
.cbufs
[0] = dst
;
662 u_sampler_view_default_template(&viewTempl
,
664 src
->texture
->format
);
665 view
= pipe
->create_sampler_view(pipe
,
669 if (ctx
->sampler_view
) {
670 pipe_sampler_view_reference(&ctx
->sampler_view
, NULL
);
672 ctx
->sampler_view
= view
;
674 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
675 pipe
->bind_vs_state(pipe
, ctx
->vs_tex
);
676 pipe
->bind_fragment_sampler_states(pipe
, 1,
677 blitter_get_sampler_state(ctx
, src
->level
));
678 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
679 pipe
->set_fragment_sampler_views(pipe
, 1, &view
);
680 pipe
->set_framebuffer_state(pipe
, &fb_state
);
682 /* set texture coordinates */
683 switch (src
->texture
->target
) {
684 case PIPE_TEXTURE_1D
:
685 case PIPE_TEXTURE_2D
:
686 blitter_set_texcoords_2d(ctx
, src
, srcx
, srcy
,
687 srcx
+width
, srcy
+height
);
689 case PIPE_TEXTURE_3D
:
690 blitter_set_texcoords_3d(ctx
, src
, srcx
, srcy
,
691 srcx
+width
, srcy
+height
);
693 case PIPE_TEXTURE_CUBE
:
694 blitter_set_texcoords_cube(ctx
, src
, srcx
, srcy
,
695 srcx
+width
, srcy
+height
);
701 blitter_set_rectangle(ctx
, dstx
, dsty
, dstx
+width
, dsty
+height
, dst
->width
, dst
->height
, 0);
702 blitter_draw_quad(ctx
);
706 static void util_blitter_overlap_copy(struct blitter_context
*blitter
,
707 struct pipe_surface
*dst
,
708 unsigned dstx
, unsigned dsty
,
709 struct pipe_surface
*src
,
710 unsigned srcx
, unsigned srcy
,
711 unsigned width
, unsigned height
)
713 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
714 struct pipe_context
*pipe
= ctx
->pipe
;
715 struct pipe_screen
*screen
= pipe
->screen
;
717 struct pipe_texture texTemp
;
718 struct pipe_texture
*texture
;
719 struct pipe_surface
*tex_surf
;
721 /* check whether the states are properly saved */
722 blitter_check_saved_CSOs(ctx
);
724 memset(&texTemp
, 0, sizeof(texTemp
));
725 texTemp
.target
= PIPE_TEXTURE_2D
;
726 texTemp
.format
= dst
->texture
->format
; /* XXX verify supported by driver! */
727 texTemp
.last_level
= 0;
728 texTemp
.width0
= width
;
729 texTemp
.height0
= height
;
732 texture
= screen
->texture_create(screen
, &texTemp
);
736 tex_surf
= screen
->get_tex_surface(screen
, texture
, 0, 0, 0,
737 PIPE_BUFFER_USAGE_GPU_READ
|
738 PIPE_BUFFER_USAGE_GPU_WRITE
);
740 /* blit from the src to the temp */
741 util_blitter_do_copy(blitter
, tex_surf
, 0, 0,
745 util_blitter_do_copy(blitter
, dst
, dstx
, dsty
,
749 pipe_surface_reference(&tex_surf
, NULL
);
750 pipe_texture_reference(&texture
, NULL
);
751 blitter_restore_CSOs(ctx
);
754 void util_blitter_copy(struct blitter_context
*blitter
,
755 struct pipe_surface
*dst
,
756 unsigned dstx
, unsigned dsty
,
757 struct pipe_surface
*src
,
758 unsigned srcx
, unsigned srcy
,
759 unsigned width
, unsigned height
,
760 boolean ignore_stencil
)
762 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
763 struct pipe_context
*pipe
= ctx
->pipe
;
764 struct pipe_screen
*screen
= pipe
->screen
;
765 boolean is_stencil
, is_depth
;
766 unsigned dst_tex_usage
;
768 /* give up if textures are not set */
769 assert(dst
->texture
&& src
->texture
);
770 if (!dst
->texture
|| !src
->texture
)
773 if (dst
->texture
== src
->texture
) {
774 if (is_overlap(srcx
, srcx
+ width
, srcy
, srcy
+ height
,
775 dstx
, dstx
+ width
, dsty
, dsty
+ height
)) {
776 util_blitter_overlap_copy(blitter
, dst
, dstx
, dsty
, src
, srcx
, srcy
,
782 is_depth
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 0) != 0;
783 is_stencil
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 1) != 0;
784 dst_tex_usage
= is_depth
|| is_stencil
? PIPE_TEXTURE_USAGE_DEPTH_STENCIL
:
785 PIPE_TEXTURE_USAGE_RENDER_TARGET
;
787 /* check if we can sample from and render to the surfaces */
788 /* (assuming copying a stencil buffer is not possible) */
789 if ((!ignore_stencil
&& is_stencil
) ||
790 !screen
->is_format_supported(screen
, dst
->format
, dst
->texture
->target
,
792 !screen
->is_format_supported(screen
, src
->format
, src
->texture
->target
,
793 PIPE_TEXTURE_USAGE_SAMPLER
, 0)) {
794 util_surface_copy(pipe
, FALSE
, dst
, dstx
, dsty
, src
, srcx
, srcy
,
799 /* check whether the states are properly saved */
800 blitter_check_saved_CSOs(ctx
);
801 util_blitter_do_copy(blitter
,
804 width
, height
, is_depth
);
805 blitter_restore_CSOs(ctx
);
808 void util_blitter_fill(struct blitter_context
*blitter
,
809 struct pipe_surface
*dst
,
810 unsigned dstx
, unsigned dsty
,
811 unsigned width
, unsigned height
,
814 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
815 struct pipe_context
*pipe
= ctx
->pipe
;
816 struct pipe_screen
*screen
= pipe
->screen
;
817 struct pipe_framebuffer_state fb_state
;
819 ubyte ub_rgba
[4] = {0};
820 union util_color color
;
823 assert(dst
->texture
);
827 /* check if we can render to the surface */
828 if (util_format_is_depth_or_stencil(dst
->format
) || /* unlikely, but you never know */
829 !screen
->is_format_supported(screen
, dst
->format
, dst
->texture
->target
,
830 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
831 util_surface_fill(pipe
, dst
, dstx
, dsty
, width
, height
, value
);
835 /* unpack the color */
837 util_unpack_color_ub(dst
->format
, &color
,
838 ub_rgba
, ub_rgba
+1, ub_rgba
+2, ub_rgba
+3);
839 for (i
= 0; i
< 4; i
++)
840 rgba
[i
] = ubyte_to_float(ub_rgba
[i
]);
842 /* check the saved state */
843 blitter_check_saved_CSOs(ctx
);
844 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
847 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
848 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
849 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
850 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, 1));
851 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
852 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
854 /* set a framebuffer state */
855 fb_state
.width
= dst
->width
;
856 fb_state
.height
= dst
->height
;
857 fb_state
.nr_cbufs
= 1;
858 fb_state
.cbufs
[0] = dst
;
860 pipe
->set_framebuffer_state(pipe
, &fb_state
);
862 blitter_set_clear_color(ctx
, rgba
);
863 blitter_set_rectangle(ctx
, 0, 0, width
, height
, dst
->width
, dst
->height
, 0);
864 blitter_draw_quad(ctx
);
865 blitter_restore_CSOs(ctx
);