2 * Copyright 2009 Marek Olšák <maraeo@gmail.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23 #include "r300_blit.h"
24 #include "r300_context.h"
26 #include "util/u_rect.h"
28 static void r300_blitter_save_states(struct r300_context
* r300
)
30 util_blitter_save_blend(r300
->blitter
, r300
->blend_state
.state
);
31 util_blitter_save_depth_stencil_alpha(r300
->blitter
, r300
->dsa_state
.state
);
32 util_blitter_save_rasterizer(r300
->blitter
, r300
->rs_state
.state
);
33 util_blitter_save_fragment_shader(r300
->blitter
, r300
->fs
);
34 util_blitter_save_vertex_shader(r300
->blitter
, r300
->vs
);
37 /* Clear currently bound buffers. */
38 void r300_clear(struct pipe_context
* pipe
,
44 /* XXX Implement fastfill.
46 * If fastfill is enabled, a few facts should be considered:
48 * 1) Zbuffer must be micro-tiled and whole microtiles must be
51 * 2) ZB_DEPTHCLEARVALUE is used to clear a zbuffer and Z Mask must be
54 * 3) RB3D_COLOR_CLEAR_VALUE is used to clear a colorbuffer and
55 * RB3D_COLOR_CHANNEL_MASK must be equal to 0.
57 * 4) ZB_CB_CLEAR can be used to make the ZB units help in clearing
58 * the colorbuffer. The color clear value is supplied through both
59 * RB3D_COLOR_CLEAR_VALUE and ZB_DEPTHCLEARVALUE, and the colorbuffer
60 * must be set in ZB_DEPTHOFFSET and ZB_DEPTHPITCH in addition to
61 * RB3D_COLOROFFSET and RB3D_COLORPITCH. It's obvious that the zbuffer
62 * will not be cleared and multiple render targets cannot be cleared
65 * 5) For 16-bit integer buffering, compression causes a hung with one or
66 * two samples and should not be used.
68 * 6) Fastfill must not be used if reading of compressed Z data is disabled
69 * and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE),
70 * i.e. it cannot be used to compress the zbuffer.
71 * (what the hell does that mean and how does it fit in clearing
77 struct r300_context
* r300
= r300_context(pipe
);
79 r300_blitter_save_states(r300
);
81 util_blitter_clear(r300
->blitter
,
82 r300
->framebuffer_state
.width
,
83 r300
->framebuffer_state
.height
,
84 r300
->framebuffer_state
.nr_cbufs
,
85 buffers
, rgba
, depth
, stencil
);
88 /* Copy a block of pixels from one surface to another. */
89 void r300_surface_copy(struct pipe_context
* pipe
,
90 struct pipe_surface
* dst
,
91 unsigned dstx
, unsigned dsty
,
92 struct pipe_surface
* src
,
93 unsigned srcx
, unsigned srcy
,
94 unsigned width
, unsigned height
)
96 struct r300_context
* r300
= r300_context(pipe
);
98 /* Yeah we have to save all those states to ensure this blitter operation
99 * is really transparent. The states will be restored by the blitter once
100 * copying is done. */
101 r300_blitter_save_states(r300
);
102 util_blitter_save_framebuffer(r300
->blitter
, &r300
->framebuffer_state
);
104 util_blitter_save_fragment_sampler_states(
105 r300
->blitter
, r300
->sampler_count
, (void**)r300
->sampler_states
);
107 util_blitter_save_fragment_sampler_textures(
108 r300
->blitter
, r300
->texture_count
,
109 (struct pipe_texture
**)r300
->textures
);
112 util_blitter_copy(r300
->blitter
,
113 dst
, dstx
, dsty
, src
, srcx
, srcy
, width
, height
, TRUE
);
116 /* Fill a region of a surface with a constant value. */
117 void r300_surface_fill(struct pipe_context
* pipe
,
118 struct pipe_surface
* dst
,
119 unsigned dstx
, unsigned dsty
,
120 unsigned width
, unsigned height
,
123 struct r300_context
* r300
= r300_context(pipe
);
125 r300_blitter_save_states(r300
);
126 util_blitter_save_framebuffer(r300
->blitter
, &r300
->framebuffer_state
);
128 util_blitter_fill(r300
->blitter
,
129 dst
, dstx
, dsty
, width
, height
, value
);