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| 4358 | Serge | 1 | /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */ |
| 2 | |||
| 3 | /* |
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| 4 | * Copyright (C) 2012-2013 Rob Clark |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the "Software"), |
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| 8 | * to deal in the Software without restriction, including without limitation |
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| 9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 10 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 11 | * Software is furnished to do so, subject to the following conditions: |
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| 12 | * |
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| 13 | * The above copyright notice and this permission notice (including the next |
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| 14 | * paragraph) shall be included in all copies or substantial portions of the |
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| 15 | * Software. |
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| 16 | * |
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| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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| 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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| 23 | * SOFTWARE. |
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| 24 | * |
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| 25 | * Authors: |
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| 26 | * Rob Clark |
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| 27 | */ |
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| 28 | |||
| 29 | #include "pipe/p_state.h" |
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| 30 | #include "util/u_string.h" |
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| 31 | #include "util/u_memory.h" |
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| 32 | #include "util/u_inlines.h" |
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| 33 | |||
| 34 | #include "fd2_texture.h" |
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| 35 | #include "fd2_util.h" |
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| 36 | |||
| 37 | static enum sq_tex_clamp |
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| 38 | tex_clamp(unsigned wrap) |
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| 39 | { |
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| 40 | switch (wrap) { |
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| 41 | case PIPE_TEX_WRAP_REPEAT: |
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| 42 | return SQ_TEX_WRAP; |
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| 43 | case PIPE_TEX_WRAP_CLAMP: |
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| 44 | return SQ_TEX_CLAMP_HALF_BORDER; |
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| 45 | case PIPE_TEX_WRAP_CLAMP_TO_EDGE: |
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| 46 | return SQ_TEX_CLAMP_LAST_TEXEL; |
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| 47 | case PIPE_TEX_WRAP_CLAMP_TO_BORDER: |
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| 48 | return SQ_TEX_CLAMP_BORDER; |
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| 49 | case PIPE_TEX_WRAP_MIRROR_REPEAT: |
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| 50 | return SQ_TEX_MIRROR; |
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| 51 | case PIPE_TEX_WRAP_MIRROR_CLAMP: |
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| 52 | return SQ_TEX_MIRROR_ONCE_HALF_BORDER; |
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| 53 | case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE: |
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| 54 | return SQ_TEX_MIRROR_ONCE_LAST_TEXEL; |
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| 55 | case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER: |
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| 56 | return SQ_TEX_MIRROR_ONCE_BORDER; |
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| 57 | default: |
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| 58 | DBG("invalid wrap: %u", wrap); |
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| 59 | return 0; |
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| 60 | } |
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| 61 | } |
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| 62 | |||
| 63 | static enum sq_tex_filter |
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| 64 | tex_filter(unsigned filter) |
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| 65 | { |
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| 66 | switch (filter) { |
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| 67 | case PIPE_TEX_FILTER_NEAREST: |
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| 68 | return SQ_TEX_FILTER_POINT; |
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| 69 | case PIPE_TEX_FILTER_LINEAR: |
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| 70 | return SQ_TEX_FILTER_BILINEAR; |
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| 71 | default: |
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| 72 | DBG("invalid filter: %u", filter); |
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| 73 | return 0; |
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| 74 | } |
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| 75 | } |
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| 76 | |||
| 77 | static void * |
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| 78 | fd2_sampler_state_create(struct pipe_context *pctx, |
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| 79 | const struct pipe_sampler_state *cso) |
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| 80 | { |
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| 81 | struct fd2_sampler_stateobj *so = CALLOC_STRUCT(fd2_sampler_stateobj); |
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| 82 | |||
| 83 | if (!so) |
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| 84 | return NULL; |
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| 85 | |||
| 86 | so->base = *cso; |
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| 87 | |||
| 88 | /* SQ_TEX0_PITCH() must be OR'd in later when we know the bound texture: */ |
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| 89 | so->tex0 = |
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| 90 | A2XX_SQ_TEX_0_CLAMP_X(tex_clamp(cso->wrap_s)) | |
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| 91 | A2XX_SQ_TEX_0_CLAMP_Y(tex_clamp(cso->wrap_t)) | |
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| 92 | A2XX_SQ_TEX_0_CLAMP_Z(tex_clamp(cso->wrap_r)); |
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| 93 | |||
| 94 | so->tex3 = |
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| 95 | A2XX_SQ_TEX_3_XY_MAG_FILTER(tex_filter(cso->mag_img_filter)) | |
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| 96 | A2XX_SQ_TEX_3_XY_MIN_FILTER(tex_filter(cso->min_img_filter)); |
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| 97 | |||
| 98 | so->tex4 = 0x00000000; /* ??? */ |
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| 99 | so->tex5 = 0x00000200; /* ??? */ |
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| 100 | |||
| 101 | return so; |
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| 102 | } |
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| 103 | |||
| 104 | static struct pipe_sampler_view * |
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| 105 | fd2_sampler_view_create(struct pipe_context *pctx, struct pipe_resource *prsc, |
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| 106 | const struct pipe_sampler_view *cso) |
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| 107 | { |
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| 108 | struct fd2_pipe_sampler_view *so = CALLOC_STRUCT(fd2_pipe_sampler_view); |
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| 109 | struct fd_resource *rsc = fd_resource(prsc); |
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| 110 | |||
| 111 | if (!so) |
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| 112 | return NULL; |
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| 113 | |||
| 114 | so->base = *cso; |
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| 115 | pipe_reference(NULL, &prsc->reference); |
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| 116 | so->base.texture = prsc; |
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| 117 | so->base.reference.count = 1; |
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| 118 | so->base.context = pctx; |
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| 119 | |||
| 120 | so->tex_resource = rsc; |
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| 121 | so->fmt = fd2_pipe2surface(cso->format); |
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| 122 | |||
| 123 | so->tex0 = A2XX_SQ_TEX_0_PITCH(rsc->pitch); |
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| 124 | so->tex2 = |
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| 125 | A2XX_SQ_TEX_2_HEIGHT(prsc->height0 - 1) | |
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| 126 | A2XX_SQ_TEX_2_WIDTH(prsc->width0 - 1); |
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| 127 | so->tex3 = fd2_tex_swiz(cso->format, cso->swizzle_r, cso->swizzle_g, |
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| 128 | cso->swizzle_b, cso->swizzle_a); |
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| 129 | |||
| 130 | return &so->base; |
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| 131 | } |
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| 132 | |||
| 133 | /* map gallium sampler-id to hw const-idx.. adreno uses a flat address |
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| 134 | * space of samplers (const-idx), so we need to map the gallium sampler-id |
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| 135 | * which is per-shader to a global const-idx space. |
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| 136 | * |
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| 137 | * Fragment shader sampler maps directly to const-idx, and vertex shader |
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| 138 | * is offset by the # of fragment shader samplers. If the # of fragment |
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| 139 | * shader samplers changes, this shifts the vertex shader indexes. |
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| 140 | * |
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| 141 | * TODO maybe we can do frag shader 0..N and vert shader N..0 to avoid |
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| 142 | * this?? |
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| 143 | */ |
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| 144 | unsigned |
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| 145 | fd2_get_const_idx(struct fd_context *ctx, struct fd_texture_stateobj *tex, |
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| 146 | unsigned samp_id) |
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| 147 | { |
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| 148 | if (tex == &ctx->fragtex) |
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| 149 | return samp_id; |
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| 150 | return samp_id + ctx->fragtex.num_samplers; |
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| 151 | } |
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| 152 | |||
| 153 | void |
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| 154 | fd2_texture_init(struct pipe_context *pctx) |
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| 155 | { |
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| 156 | pctx->create_sampler_state = fd2_sampler_state_create; |
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| 157 | pctx->create_sampler_view = fd2_sampler_view_create; |
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| 158 | } |