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_context.h"
24 #include "r300_texture.h"
26 #include "util/u_format.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_stencil_ref(r300
->blitter
, &(r300
->stencil_ref
));
33 util_blitter_save_rasterizer(r300
->blitter
, r300
->rs_state
.state
);
34 util_blitter_save_fragment_shader(r300
->blitter
, r300
->fs
.state
);
35 util_blitter_save_vertex_shader(r300
->blitter
, r300
->vs_state
.state
);
36 util_blitter_save_viewport(r300
->blitter
, &r300
->viewport
);
37 util_blitter_save_clip(r300
->blitter
, &r300
->clip
);
38 util_blitter_save_vertex_elements(r300
->blitter
, r300
->velems
);
39 /* XXX this crashes the driver
40 util_blitter_save_vertex_buffers(r300->blitter, r300->vertex_buffer_count,
41 r300->vertex_buffer); */
44 /* Clear currently bound buffers. */
45 static void r300_clear(struct pipe_context
* pipe
,
51 /* XXX Implement fastfill.
53 * If fastfill is enabled, a few facts should be considered:
55 * 1) Zbuffer must be micro-tiled and whole microtiles must be
58 * 2) ZB_DEPTHCLEARVALUE is used to clear a zbuffer and Z Mask must be
61 * 3) For 16-bit integer buffering, compression causes a hung with one or
62 * two samples and should not be used.
64 * 4) Fastfill must not be used if reading of compressed Z data is disabled
65 * and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE),
66 * i.e. it cannot be used to compress the zbuffer.
67 * (what the hell does that mean and how does it fit in clearing
73 struct r300_context
* r300
= r300_context(pipe
);
74 struct pipe_framebuffer_state
* fb
=
75 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
77 r300_blitter_save_states(r300
);
79 util_blitter_clear(r300
->blitter
,
83 buffers
, rgba
, depth
, stencil
);
86 /* Copy a block of pixels from one surface to another using HW. */
87 static void r300_hw_copy_region(struct pipe_context
* pipe
,
88 struct pipe_resource
*dst
,
89 struct pipe_subresource subdst
,
90 unsigned dstx
, unsigned dsty
, unsigned dstz
,
91 struct pipe_resource
*src
,
92 struct pipe_subresource subsrc
,
93 unsigned srcx
, unsigned srcy
, unsigned srcz
,
94 unsigned width
, unsigned height
)
96 struct r300_context
* r300
= r300_context(pipe
);
97 struct r300_textures_state
* state
=
98 (struct r300_textures_state
*)r300
->textures_state
.state
;
100 /* Yeah we have to save all those states to ensure this blitter operation
101 * is really transparent. The states will be restored by the blitter once
102 * copying is done. */
103 r300_blitter_save_states(r300
);
104 util_blitter_save_framebuffer(r300
->blitter
, r300
->fb_state
.state
);
106 util_blitter_save_fragment_sampler_states(
107 r300
->blitter
, state
->sampler_state_count
,
108 (void**)state
->sampler_states
);
110 util_blitter_save_fragment_sampler_views(
111 r300
->blitter
, state
->sampler_view_count
,
112 (struct pipe_sampler_view
**)state
->sampler_views
);
115 util_blitter_copy_region(r300
->blitter
, dst
, subdst
, dstx
, dsty
, dstz
,
116 src
, subsrc
, srcx
, srcy
, srcz
, width
, height
,
120 /* Copy a block of pixels from one surface to another. */
121 static void r300_resource_copy_region(struct pipe_context
*pipe
,
122 struct pipe_resource
*dst
,
123 struct pipe_subresource subdst
,
124 unsigned dstx
, unsigned dsty
, unsigned dstz
,
125 struct pipe_resource
*src
,
126 struct pipe_subresource subsrc
,
127 unsigned srcx
, unsigned srcy
, unsigned srcz
,
128 unsigned width
, unsigned height
)
130 enum pipe_format old_format
= dst
->format
;
131 enum pipe_format new_format
= old_format
;
133 if (dst
->format
!= src
->format
) {
134 debug_printf("r300: Implementation error: Format mismatch in %s\n"
135 " : src: %s dst: %s\n", __FUNCTION__
,
136 util_format_short_name(src
->format
),
137 util_format_short_name(dst
->format
));
141 if (!pipe
->screen
->is_format_supported(pipe
->screen
,
142 old_format
, src
->target
,
144 PIPE_BIND_RENDER_TARGET
|
145 PIPE_BIND_SAMPLER_VIEW
, 0) &&
146 util_format_is_plain(old_format
)) {
147 switch (util_format_get_blocksize(old_format
)) {
149 new_format
= PIPE_FORMAT_I8_UNORM
;
152 new_format
= PIPE_FORMAT_B4G4R4A4_UNORM
;
155 new_format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
158 new_format
= PIPE_FORMAT_R16G16B16A16_UNORM
;
161 debug_printf("r300: surface_copy: Unhandled format: %s. Falling back to software.\n"
162 "r300: surface_copy: Software fallback doesn't work for tiled textures.\n",
163 util_format_short_name(old_format
));
167 if (old_format
!= new_format
) {
168 dst
->format
= new_format
;
169 src
->format
= new_format
;
171 r300_texture_reinterpret_format(pipe
->screen
,
173 r300_texture_reinterpret_format(pipe
->screen
,
177 r300_hw_copy_region(pipe
, dst
, subdst
, dstx
, dsty
, dstz
,
178 src
, subsrc
, srcx
, srcy
, srcz
, width
, height
);
180 if (old_format
!= new_format
) {
181 dst
->format
= old_format
;
182 src
->format
= old_format
;
184 r300_texture_reinterpret_format(pipe
->screen
,
186 r300_texture_reinterpret_format(pipe
->screen
,
191 /* Clear a region of a color surface to a constant value. */
192 static void r300_clear_render_target(struct pipe_context
*pipe
,
193 struct pipe_surface
*dst
,
195 unsigned dstx
, unsigned dsty
,
196 unsigned width
, unsigned height
)
198 struct r300_context
*r300
= r300_context(pipe
);
200 r300_blitter_save_states(r300
);
201 util_blitter_save_framebuffer(r300
->blitter
, r300
->fb_state
.state
);
203 util_blitter_clear_render_target(r300
->blitter
, dst
, rgba
,
204 dstx
, dsty
, width
, height
);
207 /* Clear a region of a depth stencil surface. */
208 static void r300_clear_depth_stencil(struct pipe_context
*pipe
,
209 struct pipe_surface
*dst
,
210 unsigned clear_flags
,
213 unsigned dstx
, unsigned dsty
,
214 unsigned width
, unsigned height
)
216 struct r300_context
*r300
= r300_context(pipe
);
218 r300_blitter_save_states(r300
);
219 util_blitter_save_framebuffer(r300
->blitter
, r300
->fb_state
.state
);
221 util_blitter_clear_depth_stencil(r300
->blitter
, dst
, clear_flags
, depth
, stencil
,
222 dstx
, dsty
, width
, height
);
225 void r300_init_blit_functions(struct r300_context
*r300
)
227 r300
->context
.clear
= r300_clear
;
228 r300
->context
.clear_render_target
= r300_clear_render_target
;
229 r300
->context
.clear_depth_stencil
= r300_clear_depth_stencil
;
230 r300
->context
.resource_copy_region
= r300_resource_copy_region
;