intel_tex_validate.c revision e2dce7f7ee3e7da9cbb0bb33307ecd79e824426d
1#include "main/mtypes.h" 2#include "main/macros.h" 3#include "main/samplerobj.h" 4 5#include "intel_context.h" 6#include "intel_mipmap_tree.h" 7#include "intel_blit.h" 8#include "intel_tex.h" 9#include "intel_tex_layout.h" 10 11#define FILE_DEBUG_FLAG DEBUG_TEXTURE 12 13/** 14 * When validating, we only care about the texture images that could 15 * be seen, so for non-mipmapped modes we want to ignore everything 16 * but BaseLevel. 17 */ 18static void 19intel_update_max_level(struct intel_texture_object *intelObj, 20 struct gl_sampler_object *sampler) 21{ 22 struct gl_texture_object *tObj = &intelObj->base; 23 24 if (sampler->MinFilter == GL_NEAREST || 25 sampler->MinFilter == GL_LINEAR) { 26 intelObj->_MaxLevel = tObj->BaseLevel; 27 } else { 28 intelObj->_MaxLevel = tObj->_MaxLevel; 29 } 30} 31 32/* 33 */ 34GLuint 35intel_finalize_mipmap_tree(struct intel_context *intel, GLuint unit) 36{ 37 struct gl_context *ctx = &intel->ctx; 38 struct gl_texture_object *tObj = intel->ctx.Texture.Unit[unit]._Current; 39 struct intel_texture_object *intelObj = intel_texture_object(tObj); 40 struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit); 41 GLuint face, i; 42 GLuint nr_faces = 0; 43 struct intel_texture_image *firstImage; 44 int width, height, depth; 45 46 /* We know/require this is true by now: 47 */ 48 assert(intelObj->base._Complete); 49 50 /* What levels must the tree include at a minimum? 51 */ 52 intel_update_max_level(intelObj, sampler); 53 firstImage = intel_texture_image(tObj->Image[0][tObj->BaseLevel]); 54 55 /* Check tree can hold all active levels. Check tree matches 56 * target, imageFormat, etc. 57 * 58 * For pre-gen4, we have to match first_level == tObj->BaseLevel, 59 * because we don't have the control that gen4 does to make min/mag 60 * determination happen at a nonzero (hardware) baselevel. Because 61 * of that, we just always relayout on baselevel change. 62 */ 63 if (intelObj->mt && 64 (!intel_miptree_match_image(intelObj->mt, &firstImage->base.Base) || 65 intelObj->mt->first_level != tObj->BaseLevel || 66 intelObj->mt->last_level < intelObj->_MaxLevel)) { 67 intel_miptree_release(&intelObj->mt); 68 } 69 70 71 /* May need to create a new tree: 72 */ 73 if (!intelObj->mt) { 74 intel_miptree_get_dimensions_for_image(&firstImage->base.Base, 75 &width, &height, &depth); 76 77 intelObj->mt = intel_miptree_create(intel, 78 intelObj->base.Target, 79 firstImage->base.Base.TexFormat, 80 tObj->BaseLevel, 81 intelObj->_MaxLevel, 82 width, 83 height, 84 depth, 85 true); 86 if (!intelObj->mt) 87 return false; 88 } 89 90 /* Pull in any images not in the object's tree: 91 */ 92 nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 93 for (face = 0; face < nr_faces; face++) { 94 for (i = tObj->BaseLevel; i <= intelObj->_MaxLevel; i++) { 95 struct intel_texture_image *intelImage = 96 intel_texture_image(intelObj->base.Image[face][i]); 97 /* skip too small size mipmap */ 98 if (intelImage == NULL) 99 break; 100 101 if (intelObj->mt != intelImage->mt) { 102 intel_miptree_copy_teximage(intel, intelImage, intelObj->mt); 103 } 104 } 105 } 106 107 return true; 108} 109 110/** 111 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT 112 */ 113static void 114intel_tex_map_image_for_swrast(struct intel_context *intel, 115 struct intel_texture_image *intel_image, 116 GLbitfield mode) 117{ 118 int level; 119 int face; 120 struct intel_mipmap_tree *mt; 121 unsigned int x, y; 122 123 if (!intel_image || !intel_image->mt) 124 return; 125 126 level = intel_image->base.Base.Level; 127 face = intel_image->base.Base.Face; 128 mt = intel_image->mt; 129 130 if (mt->target == GL_TEXTURE_3D || 131 mt->target == GL_TEXTURE_2D_ARRAY || 132 mt->target == GL_TEXTURE_1D_ARRAY) { 133 int i; 134 135 /* ImageOffsets[] is only used for swrast's fetch_texel_3d, so we can't 136 * share code with the normal path. 137 */ 138 for (i = 0; i < mt->level[level].depth; i++) { 139 intel_miptree_get_image_offset(mt, level, face, i, &x, &y); 140 intel_image->base.ImageOffsets[i] = x + y * mt->region->pitch; 141 } 142 143 DBG("%s \n", __FUNCTION__); 144 145 intel_image->base.Map = intel_region_map(intel, mt->region, mode); 146 } else { 147 assert(intel_image->base.Base.Depth == 1); 148 intel_miptree_get_image_offset(mt, level, face, 0, &x, &y); 149 150 DBG("%s: (%d,%d) -> (%d, %d)/%d\n", 151 __FUNCTION__, face, level, x, y, mt->region->pitch * mt->cpp); 152 153 intel_image->base.Map = intel_region_map(intel, mt->region, mode) + 154 (x + y * mt->region->pitch) * mt->cpp; 155 } 156 157 intel_image->base.RowStride = mt->region->pitch; 158} 159 160static void 161intel_tex_unmap_image_for_swrast(struct intel_context *intel, 162 struct intel_texture_image *intel_image) 163{ 164 if (intel_image && intel_image->mt) { 165 intel_region_unmap(intel, intel_image->mt->region); 166 intel_image->base.Map = NULL; 167 } 168} 169 170/** 171 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT 172 */ 173void 174intel_tex_map_images(struct intel_context *intel, 175 struct intel_texture_object *intelObj, 176 GLbitfield mode) 177{ 178 GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 179 int i, face; 180 181 DBG("%s\n", __FUNCTION__); 182 183 for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) { 184 for (face = 0; face < nr_faces; face++) { 185 struct intel_texture_image *intel_image = 186 intel_texture_image(intelObj->base.Image[face][i]); 187 188 intel_tex_map_image_for_swrast(intel, intel_image, mode); 189 } 190 } 191} 192 193void 194intel_tex_unmap_images(struct intel_context *intel, 195 struct intel_texture_object *intelObj) 196{ 197 GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 198 int i, face; 199 200 for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) { 201 for (face = 0; face < nr_faces; face++) { 202 struct intel_texture_image *intel_image = 203 intel_texture_image(intelObj->base.Image[face][i]); 204 205 intel_tex_unmap_image_for_swrast(intel, intel_image); 206 } 207 } 208} 209