2 * Copyright (C) 2012-2013 Rob Clark <robclark@freedesktop.org>
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * 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 NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * Rob Clark <robclark@freedesktop.org>
27 #include "pipe/p_state.h"
28 #include "util/u_string.h"
29 #include "util/u_memory.h"
30 #include "util/u_inlines.h"
32 #include "fd2_texture.h"
35 static enum sq_tex_clamp
36 tex_clamp(unsigned wrap
)
39 case PIPE_TEX_WRAP_REPEAT
:
41 case PIPE_TEX_WRAP_CLAMP
:
42 return SQ_TEX_CLAMP_HALF_BORDER
;
43 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
:
44 return SQ_TEX_CLAMP_LAST_TEXEL
;
45 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
:
46 return SQ_TEX_CLAMP_BORDER
;
47 case PIPE_TEX_WRAP_MIRROR_REPEAT
:
49 case PIPE_TEX_WRAP_MIRROR_CLAMP
:
50 return SQ_TEX_MIRROR_ONCE_HALF_BORDER
;
51 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE
:
52 return SQ_TEX_MIRROR_ONCE_LAST_TEXEL
;
53 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER
:
54 return SQ_TEX_MIRROR_ONCE_BORDER
;
56 DBG("invalid wrap: %u", wrap
);
61 static enum sq_tex_filter
62 tex_filter(unsigned filter
)
65 case PIPE_TEX_FILTER_NEAREST
:
66 return SQ_TEX_FILTER_POINT
;
67 case PIPE_TEX_FILTER_LINEAR
:
68 return SQ_TEX_FILTER_BILINEAR
;
70 DBG("invalid filter: %u", filter
);
75 static enum sq_tex_filter
76 mip_filter(unsigned filter
)
79 case PIPE_TEX_MIPFILTER_NONE
:
80 return SQ_TEX_FILTER_BASEMAP
;
81 case PIPE_TEX_MIPFILTER_NEAREST
:
82 return SQ_TEX_FILTER_POINT
;
83 case PIPE_TEX_MIPFILTER_LINEAR
:
84 return SQ_TEX_FILTER_BILINEAR
;
86 DBG("invalid filter: %u", filter
);
92 fd2_sampler_state_create(struct pipe_context
*pctx
,
93 const struct pipe_sampler_state
*cso
)
95 struct fd2_sampler_stateobj
*so
= CALLOC_STRUCT(fd2_sampler_stateobj
);
103 * cso->max_anisotropy
104 * cso->normalized_coords (dealt with by shader for rect textures?)
107 /* SQ_TEX0_PITCH() must be OR'd in later when we know the bound texture: */
109 A2XX_SQ_TEX_0_CLAMP_X(tex_clamp(cso
->wrap_s
)) |
110 A2XX_SQ_TEX_0_CLAMP_Y(tex_clamp(cso
->wrap_t
)) |
111 A2XX_SQ_TEX_0_CLAMP_Z(tex_clamp(cso
->wrap_r
));
114 A2XX_SQ_TEX_3_XY_MAG_FILTER(tex_filter(cso
->mag_img_filter
)) |
115 A2XX_SQ_TEX_3_XY_MIN_FILTER(tex_filter(cso
->min_img_filter
)) |
116 A2XX_SQ_TEX_3_MIP_FILTER(mip_filter(cso
->min_mip_filter
));
119 if (cso
->min_mip_filter
!= PIPE_TEX_MIPFILTER_NONE
)
120 so
->tex4
= A2XX_SQ_TEX_4_LOD_BIAS(cso
->lod_bias
);
126 fd2_sampler_states_bind(struct pipe_context
*pctx
,
127 enum pipe_shader_type shader
, unsigned start
,
128 unsigned nr
, void **hwcso
)
133 if (shader
== PIPE_SHADER_FRAGMENT
) {
134 struct fd_context
*ctx
= fd_context(pctx
);
136 /* on a2xx, since there is a flat address space for textures/samplers,
137 * a change in # of fragment textures/samplers will trigger patching and
138 * re-emitting the vertex shader:
140 if (nr
!= ctx
->tex
[PIPE_SHADER_FRAGMENT
].num_samplers
)
141 ctx
->dirty
|= FD_DIRTY_TEXSTATE
;
144 fd_sampler_states_bind(pctx
, shader
, start
, nr
, hwcso
);
147 static enum sq_tex_dimension
148 tex_dimension(unsigned target
)
153 case PIPE_TEXTURE_1D
:
154 assert(0); /* TODO */
155 return SQ_TEX_DIMENSION_1D
;
156 case PIPE_TEXTURE_RECT
:
157 case PIPE_TEXTURE_2D
:
158 return SQ_TEX_DIMENSION_2D
;
159 case PIPE_TEXTURE_3D
:
160 assert(0); /* TODO */
161 return SQ_TEX_DIMENSION_3D
;
162 case PIPE_TEXTURE_CUBE
:
163 return SQ_TEX_DIMENSION_CUBE
;
167 static struct pipe_sampler_view
*
168 fd2_sampler_view_create(struct pipe_context
*pctx
, struct pipe_resource
*prsc
,
169 const struct pipe_sampler_view
*cso
)
171 struct fd2_pipe_sampler_view
*so
= CALLOC_STRUCT(fd2_pipe_sampler_view
);
172 struct fd_resource
*rsc
= fd_resource(prsc
);
178 pipe_reference(NULL
, &prsc
->reference
);
179 so
->base
.texture
= prsc
;
180 so
->base
.reference
.count
= 1;
181 so
->base
.context
= pctx
;
183 so
->tex0
= A2XX_SQ_TEX_0_PITCH(rsc
->slices
[0].pitch
);
185 A2XX_SQ_TEX_1_FORMAT(fd2_pipe2surface(cso
->format
)) |
186 A2XX_SQ_TEX_1_CLAMP_POLICY(SQ_TEX_CLAMP_POLICY_OGL
);
188 A2XX_SQ_TEX_2_HEIGHT(prsc
->height0
- 1) |
189 A2XX_SQ_TEX_2_WIDTH(prsc
->width0
- 1);
190 so
->tex3
= fd2_tex_swiz(cso
->format
, cso
->swizzle_r
, cso
->swizzle_g
,
191 cso
->swizzle_b
, cso
->swizzle_a
);
194 A2XX_SQ_TEX_4_MIP_MIN_LEVEL(fd_sampler_first_level(cso
)) |
195 A2XX_SQ_TEX_4_MIP_MAX_LEVEL(fd_sampler_last_level(cso
));
197 so
->tex5
= A2XX_SQ_TEX_5_DIMENSION(tex_dimension(prsc
->target
));
203 fd2_set_sampler_views(struct pipe_context
*pctx
, enum pipe_shader_type shader
,
204 unsigned start
, unsigned nr
,
205 struct pipe_sampler_view
**views
)
207 if (shader
== PIPE_SHADER_FRAGMENT
) {
208 struct fd_context
*ctx
= fd_context(pctx
);
210 /* on a2xx, since there is a flat address space for textures/samplers,
211 * a change in # of fragment textures/samplers will trigger patching and
212 * re-emitting the vertex shader:
214 if (nr
!= ctx
->tex
[PIPE_SHADER_FRAGMENT
].num_textures
)
215 ctx
->dirty
|= FD_DIRTY_TEXSTATE
;
218 fd_set_sampler_views(pctx
, shader
, start
, nr
, views
);
221 /* map gallium sampler-id to hw const-idx.. adreno uses a flat address
222 * space of samplers (const-idx), so we need to map the gallium sampler-id
223 * which is per-shader to a global const-idx space.
225 * Fragment shader sampler maps directly to const-idx, and vertex shader
226 * is offset by the # of fragment shader samplers. If the # of fragment
227 * shader samplers changes, this shifts the vertex shader indexes.
229 * TODO maybe we can do frag shader 0..N and vert shader N..0 to avoid
233 fd2_get_const_idx(struct fd_context
*ctx
, struct fd_texture_stateobj
*tex
,
236 if (tex
== &ctx
->tex
[PIPE_SHADER_FRAGMENT
])
238 return samp_id
+ ctx
->tex
[PIPE_SHADER_FRAGMENT
].num_samplers
;
241 /* for reasons unknown, it appears ETC1 cubemap needs swapped xy coordinates */
242 bool fd2_texture_swap_xy(struct fd_texture_stateobj
*tex
, unsigned samp_id
)
244 return tex
->textures
[samp_id
]->format
== PIPE_FORMAT_ETC1_RGB8
&&
245 tex
->textures
[samp_id
]->texture
->target
== PIPE_TEXTURE_CUBE
;
249 fd2_texture_init(struct pipe_context
*pctx
)
251 pctx
->create_sampler_state
= fd2_sampler_state_create
;
252 pctx
->bind_sampler_states
= fd2_sampler_states_bind
;
253 pctx
->create_sampler_view
= fd2_sampler_view_create
;
254 pctx
->set_sampler_views
= fd2_set_sampler_views
;