1 /* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 2014 Intel Corporation All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included 14 * in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: 25 * Jason Ekstrand <jason.ekstrand (at) intel.com> 26 */ 27 28 #include "brw_blorp.h" 29 #include "intel_fbo.h" 30 #include "intel_tex.h" 31 #include "intel_blit.h" 32 #include "intel_mipmap_tree.h" 33 #include "main/formats.h" 34 #include "main/teximage.h" 35 #include "drivers/common/meta.h" 36 37 static void 38 copy_miptrees(struct brw_context *brw, 39 struct intel_mipmap_tree *src_mt, 40 int src_x, int src_y, int src_z, unsigned src_level, 41 struct intel_mipmap_tree *dst_mt, 42 int dst_x, int dst_y, int dst_z, unsigned dst_level, 43 int src_width, int src_height) 44 { 45 const struct gen_device_info *devinfo = &brw->screen->devinfo; 46 47 if (devinfo->gen <= 5) { 48 /* On gen4-5, try BLT first. 49 * 50 * Gen4-5 have a single ring for both 3D and BLT operations, so there's 51 * no inter-ring synchronization issues like on Gen6+. It is apparently 52 * faster than using the 3D pipeline. Original Gen4 also has to rebase 53 * and copy miptree slices in order to render to unaligned locations. 54 */ 55 if (intel_miptree_copy(brw, src_mt, src_level, src_z, src_x, src_y, 56 dst_mt, dst_level, dst_z, dst_x, dst_y, 57 src_width, src_height)) 58 return; 59 } 60 61 brw_blorp_copy_miptrees(brw, 62 src_mt, src_level, src_z, 63 dst_mt, dst_level, dst_z, 64 src_x, src_y, dst_x, dst_y, 65 src_width, src_height); 66 } 67 68 static void 69 intel_copy_image_sub_data(struct gl_context *ctx, 70 struct gl_texture_image *src_image, 71 struct gl_renderbuffer *src_renderbuffer, 72 int src_x, int src_y, int src_z, 73 struct gl_texture_image *dst_image, 74 struct gl_renderbuffer *dst_renderbuffer, 75 int dst_x, int dst_y, int dst_z, 76 int src_width, int src_height) 77 { 78 struct brw_context *brw = brw_context(ctx); 79 struct intel_mipmap_tree *src_mt, *dst_mt; 80 unsigned src_level, dst_level; 81 82 if (src_image) { 83 src_mt = intel_texture_image(src_image)->mt; 84 src_level = src_image->Level + src_image->TexObject->MinLevel; 85 86 /* Cube maps actually have different images per face */ 87 if (src_image->TexObject->Target == GL_TEXTURE_CUBE_MAP) 88 src_z = src_image->Face; 89 90 src_z += src_image->TexObject->MinLayer; 91 } else { 92 assert(src_renderbuffer); 93 src_mt = intel_renderbuffer(src_renderbuffer)->mt; 94 src_image = src_renderbuffer->TexImage; 95 src_level = 0; 96 } 97 98 if (dst_image) { 99 dst_mt = intel_texture_image(dst_image)->mt; 100 101 dst_level = dst_image->Level + dst_image->TexObject->MinLevel; 102 103 /* Cube maps actually have different images per face */ 104 if (dst_image->TexObject->Target == GL_TEXTURE_CUBE_MAP) 105 dst_z = dst_image->Face; 106 107 dst_z += dst_image->TexObject->MinLayer; 108 } else { 109 assert(dst_renderbuffer); 110 dst_mt = intel_renderbuffer(dst_renderbuffer)->mt; 111 dst_image = dst_renderbuffer->TexImage; 112 dst_level = 0; 113 } 114 115 copy_miptrees(brw, src_mt, src_x, src_y, src_z, src_level, 116 dst_mt, dst_x, dst_y, dst_z, dst_level, 117 src_width, src_height); 118 119 /* CopyImage only works for equal formats, texture view equivalence 120 * classes, and a couple special cases for compressed textures. 121 * 122 * Notably, GL_DEPTH_STENCIL does not appear in any equivalence 123 * classes, so we know the formats must be the same, and thus both 124 * will either have stencil, or not. They can't be mismatched. 125 */ 126 assert((src_mt->stencil_mt != NULL) == (dst_mt->stencil_mt != NULL)); 127 128 if (dst_mt->stencil_mt) { 129 copy_miptrees(brw, src_mt->stencil_mt, src_x, src_y, src_z, src_level, 130 dst_mt->stencil_mt, dst_x, dst_y, dst_z, dst_level, 131 src_width, src_height); 132 } 133 } 134 135 void 136 intelInitCopyImageFuncs(struct dd_function_table *functions) 137 { 138 functions->CopyImageSubData = intel_copy_image_sub_data; 139 } 140
