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_simple_shaders.h"
49 #include "util/u_texture.h"
51 #define INVALID_PTR ((void*)~0)
53 struct blitter_context_priv
55 struct blitter_context blitter
;
57 struct pipe_context
*pipe
; /**< pipe context */
58 struct pipe_buffer
*vbuf
; /**< quad */
60 float vertices
[4][2][4]; /**< {pos, color} or {pos, texcoord} */
62 /* Templates for various state objects. */
63 struct pipe_sampler_state template_sampler_state
;
65 /* Constant state objects. */
67 void *vs_col
; /**< Vertex shader which passes {pos, color} to the output */
68 void *vs_tex
; /**< Vertex shader which passes {pos, texcoord} to the output.*/
70 /* Fragment shaders. */
71 /* FS which outputs a color to multiple color buffers. */
72 void *fs_col
[PIPE_MAX_COLOR_BUFS
];
74 /* FS which outputs a color from a texture,
75 where the index is PIPE_TEXTURE_* to be sampled. */
76 void *fs_texfetch_col
[PIPE_MAX_TEXTURE_TYPES
];
78 /* FS which outputs a depth from a texture,
79 where the index is PIPE_TEXTURE_* to be sampled. */
80 void *fs_texfetch_depth
[PIPE_MAX_TEXTURE_TYPES
];
83 void *blend_write_color
; /**< blend state with writemask of RGBA */
84 void *blend_keep_color
; /**< blend state with writemask of 0 */
86 /* Depth stencil alpha state. */
87 void *dsa_write_depth_stencil
;
88 void *dsa_write_depth_keep_stencil
;
89 void *dsa_keep_depth_stencil
;
93 /* Sampler state for clamping to a miplevel. */
94 void *sampler_state
[PIPE_MAX_TEXTURE_LEVELS
];
96 /* Rasterizer state. */
100 struct pipe_viewport_state viewport
;
103 struct pipe_clip_state clip
;
106 struct blitter_context
*util_blitter_create(struct pipe_context
*pipe
)
108 struct blitter_context_priv
*ctx
;
109 struct pipe_blend_state blend
= { 0 };
110 struct pipe_depth_stencil_alpha_state dsa
= { { 0 } };
111 struct pipe_rasterizer_state rs_state
= { 0 };
112 struct pipe_sampler_state
*sampler_state
;
113 struct pipe_vertex_element velem
[2];
116 ctx
= CALLOC_STRUCT(blitter_context_priv
);
122 /* init state objects for them to be considered invalid */
123 ctx
->blitter
.saved_blend_state
= INVALID_PTR
;
124 ctx
->blitter
.saved_dsa_state
= INVALID_PTR
;
125 ctx
->blitter
.saved_rs_state
= INVALID_PTR
;
126 ctx
->blitter
.saved_fs
= INVALID_PTR
;
127 ctx
->blitter
.saved_vs
= INVALID_PTR
;
128 ctx
->blitter
.saved_velem_state
= INVALID_PTR
;
129 ctx
->blitter
.saved_fb_state
.nr_cbufs
= ~0;
130 ctx
->blitter
.saved_num_textures
= ~0;
131 ctx
->blitter
.saved_num_sampler_states
= ~0;
133 /* blend state objects */
134 ctx
->blend_keep_color
= pipe
->create_blend_state(pipe
, &blend
);
136 blend
.rt
[0].colormask
= PIPE_MASK_RGBA
;
137 ctx
->blend_write_color
= pipe
->create_blend_state(pipe
, &blend
);
139 /* depth stencil alpha state objects */
140 ctx
->dsa_keep_depth_stencil
=
141 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
143 dsa
.depth
.enabled
= 1;
144 dsa
.depth
.writemask
= 1;
145 dsa
.depth
.func
= PIPE_FUNC_ALWAYS
;
146 ctx
->dsa_write_depth_keep_stencil
=
147 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
149 dsa
.stencil
[0].enabled
= 1;
150 dsa
.stencil
[0].func
= PIPE_FUNC_ALWAYS
;
151 dsa
.stencil
[0].fail_op
= PIPE_STENCIL_OP_REPLACE
;
152 dsa
.stencil
[0].zpass_op
= PIPE_STENCIL_OP_REPLACE
;
153 dsa
.stencil
[0].zfail_op
= PIPE_STENCIL_OP_REPLACE
;
154 dsa
.stencil
[0].valuemask
= 0xff;
155 dsa
.stencil
[0].writemask
= 0xff;
156 ctx
->dsa_write_depth_stencil
=
157 pipe
->create_depth_stencil_alpha_state(pipe
, &dsa
);
158 /* The DSA state objects which write depth and stencil are created
162 sampler_state
= &ctx
->template_sampler_state
;
163 sampler_state
->wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
164 sampler_state
->wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
165 sampler_state
->wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
166 /* The sampler state objects which sample from a specified mipmap level
167 * are created on-demand. */
169 /* rasterizer state */
170 memset(&rs_state
, 0, sizeof(rs_state
));
171 rs_state
.front_winding
= PIPE_WINDING_CW
;
172 rs_state
.cull_mode
= PIPE_WINDING_NONE
;
173 rs_state
.gl_rasterization_rules
= 1;
174 rs_state
.flatshade
= 1;
175 ctx
->rs_state
= pipe
->create_rasterizer_state(pipe
, &rs_state
);
177 /* vertex elements state */
178 memset(&velem
[0], 0, sizeof(velem
[0]) * 2);
179 for (i
= 0; i
< 2; i
++) {
180 velem
[i
].src_offset
= i
* 4 * sizeof(float);
181 velem
[i
].instance_divisor
= 0;
182 velem
[i
].vertex_buffer_index
= 0;
183 velem
[i
].src_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
185 ctx
->velem_state
= pipe
->create_vertex_elements_state(pipe
, 2, &velem
[0]);
187 /* fragment shaders are created on-demand */
191 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
192 TGSI_SEMANTIC_COLOR
};
193 const uint semantic_indices
[] = { 0, 0 };
195 util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
199 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
200 TGSI_SEMANTIC_GENERIC
};
201 const uint semantic_indices
[] = { 0, 0 };
203 util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
207 /* set invariant vertex coordinates */
208 for (i
= 0; i
< 4; i
++)
209 ctx
->vertices
[i
][0][3] = 1; /*v.w*/
211 /* create the vertex buffer */
212 ctx
->vbuf
= pipe_buffer_create(ctx
->pipe
->screen
,
214 PIPE_BUFFER_USAGE_VERTEX
,
215 sizeof(ctx
->vertices
));
217 return &ctx
->blitter
;
220 void util_blitter_destroy(struct blitter_context
*blitter
)
222 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
223 struct pipe_context
*pipe
= ctx
->pipe
;
226 pipe
->delete_blend_state(pipe
, ctx
->blend_write_color
);
227 pipe
->delete_blend_state(pipe
, ctx
->blend_keep_color
);
228 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
229 pipe
->delete_depth_stencil_alpha_state(pipe
,
230 ctx
->dsa_write_depth_keep_stencil
);
231 pipe
->delete_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
233 pipe
->delete_rasterizer_state(pipe
, ctx
->rs_state
);
234 pipe
->delete_vs_state(pipe
, ctx
->vs_col
);
235 pipe
->delete_vs_state(pipe
, ctx
->vs_tex
);
236 pipe
->delete_vertex_elements_state(pipe
, ctx
->velem_state
);
238 for (i
= 0; i
< PIPE_MAX_TEXTURE_TYPES
; i
++) {
239 if (ctx
->fs_texfetch_col
[i
])
240 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_col
[i
]);
241 if (ctx
->fs_texfetch_depth
[i
])
242 pipe
->delete_fs_state(pipe
, ctx
->fs_texfetch_depth
[i
]);
245 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
&& ctx
->fs_col
[i
]; i
++)
247 pipe
->delete_fs_state(pipe
, ctx
->fs_col
[i
]);
249 for (i
= 0; i
< PIPE_MAX_TEXTURE_LEVELS
; i
++)
250 if (ctx
->sampler_state
[i
])
251 pipe
->delete_sampler_state(pipe
, ctx
->sampler_state
[i
]);
253 pipe_buffer_reference(&ctx
->vbuf
, NULL
);
257 static void blitter_check_saved_CSOs(struct blitter_context_priv
*ctx
)
259 /* make sure these CSOs have been saved */
260 assert(ctx
->blitter
.saved_blend_state
!= INVALID_PTR
&&
261 ctx
->blitter
.saved_dsa_state
!= INVALID_PTR
&&
262 ctx
->blitter
.saved_rs_state
!= INVALID_PTR
&&
263 ctx
->blitter
.saved_fs
!= INVALID_PTR
&&
264 ctx
->blitter
.saved_vs
!= INVALID_PTR
&&
265 ctx
->blitter
.saved_velem_state
!= INVALID_PTR
);
268 static void blitter_restore_CSOs(struct blitter_context_priv
*ctx
)
270 struct pipe_context
*pipe
= ctx
->pipe
;
272 /* restore the state objects which are always required to be saved */
273 pipe
->bind_blend_state(pipe
, ctx
->blitter
.saved_blend_state
);
274 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->blitter
.saved_dsa_state
);
275 pipe
->bind_rasterizer_state(pipe
, ctx
->blitter
.saved_rs_state
);
276 pipe
->bind_fs_state(pipe
, ctx
->blitter
.saved_fs
);
277 pipe
->bind_vs_state(pipe
, ctx
->blitter
.saved_vs
);
278 pipe
->bind_vertex_elements_state(pipe
, ctx
->blitter
.saved_velem_state
);
280 ctx
->blitter
.saved_blend_state
= INVALID_PTR
;
281 ctx
->blitter
.saved_dsa_state
= INVALID_PTR
;
282 ctx
->blitter
.saved_rs_state
= INVALID_PTR
;
283 ctx
->blitter
.saved_fs
= INVALID_PTR
;
284 ctx
->blitter
.saved_vs
= INVALID_PTR
;
285 ctx
->blitter
.saved_velem_state
= INVALID_PTR
;
287 pipe
->set_stencil_ref(pipe
, &ctx
->blitter
.saved_stencil_ref
);
289 pipe
->set_viewport_state(pipe
, &ctx
->blitter
.saved_viewport
);
290 pipe
->set_clip_state(pipe
, &ctx
->blitter
.saved_clip
);
292 /* restore the state objects which are required to be saved before copy/fill
294 if (ctx
->blitter
.saved_fb_state
.nr_cbufs
!= ~0) {
295 pipe
->set_framebuffer_state(pipe
, &ctx
->blitter
.saved_fb_state
);
296 ctx
->blitter
.saved_fb_state
.nr_cbufs
= ~0;
299 if (ctx
->blitter
.saved_num_sampler_states
!= ~0) {
300 pipe
->bind_fragment_sampler_states(pipe
,
301 ctx
->blitter
.saved_num_sampler_states
,
302 ctx
->blitter
.saved_sampler_states
);
303 ctx
->blitter
.saved_num_sampler_states
= ~0;
306 if (ctx
->blitter
.saved_num_textures
!= ~0) {
307 pipe
->set_fragment_sampler_textures(pipe
,
308 ctx
->blitter
.saved_num_textures
,
309 ctx
->blitter
.saved_textures
);
310 ctx
->blitter
.saved_num_textures
= ~0;
314 static void blitter_set_rectangle(struct blitter_context_priv
*ctx
,
315 unsigned x1
, unsigned y1
,
316 unsigned x2
, unsigned y2
,
317 unsigned width
, unsigned height
,
322 /* set vertex positions */
323 ctx
->vertices
[0][0][0] = (float)x1
/ width
* 2.0f
- 1.0f
; /*v0.x*/
324 ctx
->vertices
[0][0][1] = (float)y1
/ height
* 2.0f
- 1.0f
; /*v0.y*/
326 ctx
->vertices
[1][0][0] = (float)x2
/ width
* 2.0f
- 1.0f
; /*v1.x*/
327 ctx
->vertices
[1][0][1] = (float)y1
/ height
* 2.0f
- 1.0f
; /*v1.y*/
329 ctx
->vertices
[2][0][0] = (float)x2
/ width
* 2.0f
- 1.0f
; /*v2.x*/
330 ctx
->vertices
[2][0][1] = (float)y2
/ height
* 2.0f
- 1.0f
; /*v2.y*/
332 ctx
->vertices
[3][0][0] = (float)x1
/ width
* 2.0f
- 1.0f
; /*v3.x*/
333 ctx
->vertices
[3][0][1] = (float)y2
/ height
* 2.0f
- 1.0f
; /*v3.y*/
335 for (i
= 0; i
< 4; i
++)
336 ctx
->vertices
[i
][0][2] = depth
; /*z*/
339 ctx
->viewport
.scale
[0] = 0.5f
* width
;
340 ctx
->viewport
.scale
[1] = 0.5f
* height
;
341 ctx
->viewport
.scale
[2] = 1.0f
;
342 ctx
->viewport
.scale
[3] = 1.0f
;
343 ctx
->viewport
.translate
[0] = 0.5f
* width
;
344 ctx
->viewport
.translate
[1] = 0.5f
* height
;
345 ctx
->viewport
.translate
[2] = 0.0f
;
346 ctx
->viewport
.translate
[3] = 0.0f
;
347 ctx
->pipe
->set_viewport_state(ctx
->pipe
, &ctx
->viewport
);
350 ctx
->pipe
->set_clip_state(ctx
->pipe
, &ctx
->clip
);
353 static void blitter_set_clear_color(struct blitter_context_priv
*ctx
,
358 for (i
= 0; i
< 4; i
++) {
359 ctx
->vertices
[i
][1][0] = rgba
[0];
360 ctx
->vertices
[i
][1][1] = rgba
[1];
361 ctx
->vertices
[i
][1][2] = rgba
[2];
362 ctx
->vertices
[i
][1][3] = rgba
[3];
366 static void blitter_set_texcoords_2d(struct blitter_context_priv
*ctx
,
367 struct pipe_surface
*surf
,
368 unsigned x1
, unsigned y1
,
369 unsigned x2
, unsigned y2
)
372 float s1
= x1
/ (float)surf
->width
;
373 float t1
= y1
/ (float)surf
->height
;
374 float s2
= x2
/ (float)surf
->width
;
375 float t2
= y2
/ (float)surf
->height
;
377 ctx
->vertices
[0][1][0] = s1
; /*t0.s*/
378 ctx
->vertices
[0][1][1] = t1
; /*t0.t*/
380 ctx
->vertices
[1][1][0] = s2
; /*t1.s*/
381 ctx
->vertices
[1][1][1] = t1
; /*t1.t*/
383 ctx
->vertices
[2][1][0] = s2
; /*t2.s*/
384 ctx
->vertices
[2][1][1] = t2
; /*t2.t*/
386 ctx
->vertices
[3][1][0] = s1
; /*t3.s*/
387 ctx
->vertices
[3][1][1] = t2
; /*t3.t*/
389 for (i
= 0; i
< 4; i
++) {
390 ctx
->vertices
[i
][1][2] = 0; /*r*/
391 ctx
->vertices
[i
][1][3] = 1; /*q*/
395 static void blitter_set_texcoords_3d(struct blitter_context_priv
*ctx
,
396 struct pipe_surface
*surf
,
397 unsigned x1
, unsigned y1
,
398 unsigned x2
, unsigned y2
)
401 float depth
= u_minify(surf
->texture
->depth0
, surf
->level
);
402 float r
= surf
->zslice
/ depth
;
404 blitter_set_texcoords_2d(ctx
, surf
, x1
, y1
, x2
, y2
);
406 for (i
= 0; i
< 4; i
++)
407 ctx
->vertices
[i
][1][2] = r
; /*r*/
410 static void blitter_set_texcoords_cube(struct blitter_context_priv
*ctx
,
411 struct pipe_surface
*surf
,
412 unsigned x1
, unsigned y1
,
413 unsigned x2
, unsigned y2
)
416 float s1
= x1
/ (float)surf
->width
;
417 float t1
= y1
/ (float)surf
->height
;
418 float s2
= x2
/ (float)surf
->width
;
419 float t2
= y2
/ (float)surf
->height
;
431 util_map_texcoords2d_onto_cubemap(surf
->face
,
432 /* pointer, stride in floats */
434 &ctx
->vertices
[0][1][0], 8);
436 for (i
= 0; i
< 4; i
++)
437 ctx
->vertices
[i
][1][3] = 1; /*q*/
440 static void blitter_draw_quad(struct blitter_context_priv
*ctx
)
442 struct pipe_context
*pipe
= ctx
->pipe
;
444 /* write vertices and draw them */
445 pipe_buffer_write(pipe
->screen
, ctx
->vbuf
,
446 0, sizeof(ctx
->vertices
), ctx
->vertices
);
448 util_draw_vertex_buffer(pipe
, ctx
->vbuf
, 0, PIPE_PRIM_TRIANGLE_FAN
,
450 2); /* attribs/vert */
454 void **blitter_get_sampler_state(struct blitter_context_priv
*ctx
,
457 struct pipe_context
*pipe
= ctx
->pipe
;
458 struct pipe_sampler_state
*sampler_state
= &ctx
->template_sampler_state
;
460 assert(miplevel
< PIPE_MAX_TEXTURE_LEVELS
);
462 /* Create the sampler state on-demand. */
463 if (!ctx
->sampler_state
[miplevel
]) {
464 sampler_state
->lod_bias
= miplevel
;
465 sampler_state
->min_lod
= miplevel
;
466 sampler_state
->max_lod
= miplevel
;
468 ctx
->sampler_state
[miplevel
] = pipe
->create_sampler_state(pipe
,
472 /* Return void** so that it can be passed to bind_fragment_sampler_states
474 return &ctx
->sampler_state
[miplevel
];
478 void *blitter_get_fs_col(struct blitter_context_priv
*ctx
, unsigned num_cbufs
)
480 struct pipe_context
*pipe
= ctx
->pipe
;
481 unsigned index
= num_cbufs
? num_cbufs
- 1 : 0;
483 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
485 if (!ctx
->fs_col
[index
])
487 util_make_fragment_clonecolor_shader(pipe
, num_cbufs
);
489 return ctx
->fs_col
[index
];
493 void *blitter_get_fs_texfetch_col(struct blitter_context_priv
*ctx
,
496 struct pipe_context
*pipe
= ctx
->pipe
;
498 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
500 /* Create the fragment shader on-demand. */
501 if (!ctx
->fs_texfetch_col
[tex_target
]) {
502 switch (tex_target
) {
503 case PIPE_TEXTURE_1D
:
504 ctx
->fs_texfetch_col
[PIPE_TEXTURE_1D
] =
505 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_1D
);
507 case PIPE_TEXTURE_2D
:
508 ctx
->fs_texfetch_col
[PIPE_TEXTURE_2D
] =
509 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_2D
);
511 case PIPE_TEXTURE_3D
:
512 ctx
->fs_texfetch_col
[PIPE_TEXTURE_3D
] =
513 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_3D
);
515 case PIPE_TEXTURE_CUBE
:
516 ctx
->fs_texfetch_col
[PIPE_TEXTURE_CUBE
] =
517 util_make_fragment_tex_shader(pipe
, TGSI_TEXTURE_CUBE
);
523 return ctx
->fs_texfetch_col
[tex_target
];
527 void *blitter_get_fs_texfetch_depth(struct blitter_context_priv
*ctx
,
530 struct pipe_context
*pipe
= ctx
->pipe
;
532 assert(tex_target
< PIPE_MAX_TEXTURE_TYPES
);
534 /* Create the fragment shader on-demand. */
535 if (!ctx
->fs_texfetch_depth
[tex_target
]) {
536 switch (tex_target
) {
537 case PIPE_TEXTURE_1D
:
538 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_1D
] =
539 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_1D
);
541 case PIPE_TEXTURE_2D
:
542 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_2D
] =
543 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_2D
);
545 case PIPE_TEXTURE_3D
:
546 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_3D
] =
547 util_make_fragment_tex_shader_writedepth(pipe
, TGSI_TEXTURE_3D
);
549 case PIPE_TEXTURE_CUBE
:
550 ctx
->fs_texfetch_depth
[PIPE_TEXTURE_CUBE
] =
551 util_make_fragment_tex_shader_writedepth(pipe
,TGSI_TEXTURE_CUBE
);
557 return ctx
->fs_texfetch_depth
[tex_target
];
560 void util_blitter_clear(struct blitter_context
*blitter
,
561 unsigned width
, unsigned height
,
563 unsigned clear_buffers
,
565 double depth
, unsigned stencil
)
567 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
568 struct pipe_context
*pipe
= ctx
->pipe
;
569 struct pipe_stencil_ref sr
= { { 0 } };
571 assert(num_cbufs
<= PIPE_MAX_COLOR_BUFS
);
573 blitter_check_saved_CSOs(ctx
);
576 if (clear_buffers
& PIPE_CLEAR_COLOR
)
577 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
579 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
581 if (clear_buffers
& PIPE_CLEAR_DEPTHSTENCIL
) {
582 sr
.ref_value
[0] = stencil
& 0xff;
583 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_write_depth_stencil
);
584 pipe
->set_stencil_ref(pipe
, &sr
);
587 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
589 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
590 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
591 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, num_cbufs
));
592 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
594 blitter_set_clear_color(ctx
, rgba
);
595 blitter_set_rectangle(ctx
, 0, 0, width
, height
, width
, height
, depth
);
596 blitter_draw_quad(ctx
);
597 blitter_restore_CSOs(ctx
);
601 is_overlap(unsigned sx1
, unsigned sx2
, unsigned sy1
, unsigned sy2
,
602 unsigned dx1
, unsigned dx2
, unsigned dy1
, unsigned dy2
)
604 if (sx1
>= dx2
|| sx2
<= dx1
|| sy1
>= dy2
|| sy2
<= dy1
) {
611 static void util_blitter_do_copy(struct blitter_context
*blitter
,
612 struct pipe_surface
*dst
,
613 unsigned dstx
, unsigned dsty
,
614 struct pipe_surface
*src
,
615 unsigned srcx
, unsigned srcy
,
616 unsigned width
, unsigned height
,
619 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
620 struct pipe_context
*pipe
= ctx
->pipe
;
621 struct pipe_framebuffer_state fb_state
;
623 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
624 assert(blitter
->saved_num_textures
!= ~0);
625 assert(blitter
->saved_num_sampler_states
!= ~0);
626 assert(src
->texture
->target
< PIPE_MAX_TEXTURE_TYPES
);
629 fb_state
.width
= dst
->width
;
630 fb_state
.height
= dst
->height
;
633 pipe
->bind_blend_state(pipe
, ctx
->blend_keep_color
);
634 pipe
->bind_depth_stencil_alpha_state(pipe
,
635 ctx
->dsa_write_depth_keep_stencil
);
636 pipe
->bind_fs_state(pipe
,
637 blitter_get_fs_texfetch_depth(ctx
, src
->texture
->target
));
639 fb_state
.nr_cbufs
= 0;
640 fb_state
.zsbuf
= dst
;
642 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
643 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
644 pipe
->bind_fs_state(pipe
,
645 blitter_get_fs_texfetch_col(ctx
, src
->texture
->target
));
647 fb_state
.nr_cbufs
= 1;
648 fb_state
.cbufs
[0] = dst
;
652 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
653 pipe
->bind_vs_state(pipe
, ctx
->vs_tex
);
654 pipe
->bind_fragment_sampler_states(pipe
, 1,
655 blitter_get_sampler_state(ctx
, src
->level
));
656 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
657 pipe
->set_fragment_sampler_textures(pipe
, 1, &src
->texture
);
658 pipe
->set_framebuffer_state(pipe
, &fb_state
);
660 /* set texture coordinates */
661 switch (src
->texture
->target
) {
662 case PIPE_TEXTURE_1D
:
663 case PIPE_TEXTURE_2D
:
664 blitter_set_texcoords_2d(ctx
, src
, srcx
, srcy
,
665 srcx
+width
, srcy
+height
);
667 case PIPE_TEXTURE_3D
:
668 blitter_set_texcoords_3d(ctx
, src
, srcx
, srcy
,
669 srcx
+width
, srcy
+height
);
671 case PIPE_TEXTURE_CUBE
:
672 blitter_set_texcoords_cube(ctx
, src
, srcx
, srcy
,
673 srcx
+width
, srcy
+height
);
679 blitter_set_rectangle(ctx
, dstx
, dsty
, dstx
+width
, dsty
+height
, dst
->width
, dst
->height
, 0);
680 blitter_draw_quad(ctx
);
684 static void util_blitter_overlap_copy(struct blitter_context
*blitter
,
685 struct pipe_surface
*dst
,
686 unsigned dstx
, unsigned dsty
,
687 struct pipe_surface
*src
,
688 unsigned srcx
, unsigned srcy
,
689 unsigned width
, unsigned height
)
691 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
692 struct pipe_context
*pipe
= ctx
->pipe
;
693 struct pipe_screen
*screen
= pipe
->screen
;
695 struct pipe_texture texTemp
;
696 struct pipe_texture
*texture
;
697 struct pipe_surface
*tex_surf
;
699 /* check whether the states are properly saved */
700 blitter_check_saved_CSOs(ctx
);
702 memset(&texTemp
, 0, sizeof(texTemp
));
703 texTemp
.target
= PIPE_TEXTURE_2D
;
704 texTemp
.format
= dst
->texture
->format
; /* XXX verify supported by driver! */
705 texTemp
.last_level
= 0;
706 texTemp
.width0
= width
;
707 texTemp
.height0
= height
;
710 texture
= screen
->texture_create(screen
, &texTemp
);
714 tex_surf
= screen
->get_tex_surface(screen
, texture
, 0, 0, 0,
715 PIPE_BUFFER_USAGE_GPU_READ
|
716 PIPE_BUFFER_USAGE_GPU_WRITE
);
718 /* blit from the src to the temp */
719 util_blitter_do_copy(blitter
, tex_surf
, 0, 0,
723 util_blitter_do_copy(blitter
, dst
, dstx
, dsty
,
727 pipe_surface_reference(&tex_surf
, NULL
);
728 pipe_texture_reference(&texture
, NULL
);
729 blitter_restore_CSOs(ctx
);
732 void util_blitter_copy(struct blitter_context
*blitter
,
733 struct pipe_surface
*dst
,
734 unsigned dstx
, unsigned dsty
,
735 struct pipe_surface
*src
,
736 unsigned srcx
, unsigned srcy
,
737 unsigned width
, unsigned height
,
738 boolean ignore_stencil
)
740 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
741 struct pipe_context
*pipe
= ctx
->pipe
;
742 struct pipe_screen
*screen
= pipe
->screen
;
743 boolean is_stencil
, is_depth
;
744 unsigned dst_tex_usage
;
746 /* give up if textures are not set */
747 assert(dst
->texture
&& src
->texture
);
748 if (!dst
->texture
|| !src
->texture
)
751 if (dst
->texture
== src
->texture
) {
752 if (is_overlap(srcx
, srcx
+ width
, srcy
, srcy
+ height
,
753 dstx
, dstx
+ width
, dsty
, dsty
+ height
)) {
754 util_blitter_overlap_copy(blitter
, dst
, dstx
, dsty
, src
, srcx
, srcy
,
760 is_depth
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 0) != 0;
761 is_stencil
= util_format_get_component_bits(src
->format
, UTIL_FORMAT_COLORSPACE_ZS
, 1) != 0;
762 dst_tex_usage
= is_depth
|| is_stencil
? PIPE_TEXTURE_USAGE_DEPTH_STENCIL
:
763 PIPE_TEXTURE_USAGE_RENDER_TARGET
;
765 /* check if we can sample from and render to the surfaces */
766 /* (assuming copying a stencil buffer is not possible) */
767 if ((!ignore_stencil
&& is_stencil
) ||
768 !screen
->is_format_supported(screen
, dst
->format
, dst
->texture
->target
,
770 !screen
->is_format_supported(screen
, src
->format
, src
->texture
->target
,
771 PIPE_TEXTURE_USAGE_SAMPLER
, 0)) {
772 util_surface_copy(pipe
, FALSE
, dst
, dstx
, dsty
, src
, srcx
, srcy
,
777 /* check whether the states are properly saved */
778 blitter_check_saved_CSOs(ctx
);
779 util_blitter_do_copy(blitter
,
782 width
, height
, is_depth
);
783 blitter_restore_CSOs(ctx
);
786 void util_blitter_fill(struct blitter_context
*blitter
,
787 struct pipe_surface
*dst
,
788 unsigned dstx
, unsigned dsty
,
789 unsigned width
, unsigned height
,
792 struct blitter_context_priv
*ctx
= (struct blitter_context_priv
*)blitter
;
793 struct pipe_context
*pipe
= ctx
->pipe
;
794 struct pipe_screen
*screen
= pipe
->screen
;
795 struct pipe_framebuffer_state fb_state
;
797 ubyte ub_rgba
[4] = {0};
798 union util_color color
;
801 assert(dst
->texture
);
805 /* check if we can render to the surface */
806 if (util_format_is_depth_or_stencil(dst
->format
) || /* unlikely, but you never know */
807 !screen
->is_format_supported(screen
, dst
->format
, dst
->texture
->target
,
808 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
809 util_surface_fill(pipe
, dst
, dstx
, dsty
, width
, height
, value
);
813 /* unpack the color */
815 util_unpack_color_ub(dst
->format
, &color
,
816 ub_rgba
, ub_rgba
+1, ub_rgba
+2, ub_rgba
+3);
817 for (i
= 0; i
< 4; i
++)
818 rgba
[i
] = ubyte_to_float(ub_rgba
[i
]);
820 /* check the saved state */
821 blitter_check_saved_CSOs(ctx
);
822 assert(blitter
->saved_fb_state
.nr_cbufs
!= ~0);
825 pipe
->bind_blend_state(pipe
, ctx
->blend_write_color
);
826 pipe
->bind_depth_stencil_alpha_state(pipe
, ctx
->dsa_keep_depth_stencil
);
827 pipe
->bind_rasterizer_state(pipe
, ctx
->rs_state
);
828 pipe
->bind_fs_state(pipe
, blitter_get_fs_col(ctx
, 1));
829 pipe
->bind_vs_state(pipe
, ctx
->vs_col
);
830 pipe
->bind_vertex_elements_state(pipe
, ctx
->velem_state
);
832 /* set a framebuffer state */
833 fb_state
.width
= dst
->width
;
834 fb_state
.height
= dst
->height
;
835 fb_state
.nr_cbufs
= 1;
836 fb_state
.cbufs
[0] = dst
;
838 pipe
->set_framebuffer_state(pipe
, &fb_state
);
840 blitter_set_clear_color(ctx
, rgba
);
841 blitter_set_rectangle(ctx
, 0, 0, width
, height
, dst
->width
, dst
->height
, 0);
842 blitter_draw_quad(ctx
);
843 blitter_restore_CSOs(ctx
);