1 /* 2 * Copyright (c) 2016 Etnaviv Project 3 * 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, sub license, 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: 10 * 11 * The above copyright notice and this permission notice (including the 12 * next paragraph) shall be included in all copies or substantial portions 13 * of the Software. 14 * 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: 24 * Christian Gmeiner <christian.gmeiner (at) gmail.com> 25 */ 26 27 #include "etnaviv_uniforms.h" 28 29 #include "etnaviv_compiler.h" 30 #include "etnaviv_context.h" 31 #include "etnaviv_util.h" 32 #include "pipe/p_defines.h" 33 #include "util/u_math.h" 34 35 static unsigned 36 get_const_idx(const struct etna_context *ctx, bool frag, unsigned samp_id) 37 { 38 if (frag) 39 return samp_id; 40 41 return samp_id + ctx->specs.vertex_sampler_offset; 42 } 43 44 static uint32_t 45 get_texrect_scale(const struct etna_context *ctx, bool frag, 46 enum etna_immediate_contents contents, uint32_t data) 47 { 48 unsigned index = get_const_idx(ctx, frag, data); 49 struct pipe_sampler_view *texture = ctx->sampler_view[index]; 50 uint32_t dim; 51 52 if (contents == ETNA_IMMEDIATE_TEXRECT_SCALE_X) 53 dim = texture->texture->width0; 54 else 55 dim = texture->texture->height0; 56 57 return fui(1.0f / dim); 58 } 59 60 void 61 etna_uniforms_write(const struct etna_context *ctx, 62 const struct etna_shader_variant *sobj, 63 struct pipe_constant_buffer *cb, uint32_t *uniforms, 64 unsigned *size) 65 { 66 const struct etna_shader_uniform_info *uinfo = &sobj->uniforms; 67 bool frag = false; 68 69 if (cb->user_buffer) { 70 unsigned size = MIN2(cb->buffer_size, uinfo->const_count * 4); 71 72 memcpy(uniforms, cb->user_buffer, size); 73 } 74 75 if (sobj == ctx->shader.fs) 76 frag = true; 77 78 for (uint32_t i = 0; i < uinfo->imm_count; i++) { 79 switch (uinfo->imm_contents[i]) { 80 case ETNA_IMMEDIATE_CONSTANT: 81 uniforms[i + uinfo->const_count] = uinfo->imm_data[i]; 82 break; 83 84 case ETNA_IMMEDIATE_TEXRECT_SCALE_X: 85 case ETNA_IMMEDIATE_TEXRECT_SCALE_Y: 86 uniforms[i + uinfo->const_count] = 87 get_texrect_scale(ctx, frag, uinfo->imm_contents[i], uinfo->imm_data[i]); 88 break; 89 90 case ETNA_IMMEDIATE_UNUSED: 91 /* nothing to do */ 92 break; 93 } 94 } 95 96 *size = uinfo->const_count + uinfo->imm_count; 97 } 98 99 void 100 etna_set_shader_uniforms_dirty_flags(struct etna_shader_variant *sobj) 101 { 102 uint32_t dirty = 0; 103 104 for (uint32_t i = 0; i < sobj->uniforms.imm_count; i++) { 105 switch (sobj->uniforms.imm_contents[i]) { 106 case ETNA_IMMEDIATE_UNUSED: 107 case ETNA_IMMEDIATE_CONSTANT: 108 break; 109 110 case ETNA_IMMEDIATE_TEXRECT_SCALE_X: 111 case ETNA_IMMEDIATE_TEXRECT_SCALE_Y: 112 dirty |= ETNA_DIRTY_SAMPLER_VIEWS; 113 break; 114 } 115 } 116 117 sobj->uniforms_dirty_bits = dirty; 118 } 119