intel_tex_validate.c revision 81d5195a6105606910d0d19ab059962e5712c2e0
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 intel_miptree_get_dimensions_for_image(&firstImage->base.Base, 56 &width, &height, &depth); 57 58 /* Check tree can hold all active levels. Check tree matches 59 * target, imageFormat, etc. 60 * 61 * For pre-gen4, we have to match first_level == tObj->BaseLevel, 62 * because we don't have the control that gen4 does to make min/mag 63 * determination happen at a nonzero (hardware) baselevel. Because 64 * of that, we just always relayout on baselevel change. 65 */ 66 if (intelObj->mt && 67 (intelObj->mt->target != intelObj->base.Target || 68 intelObj->mt->format != firstImage->base.Base.TexFormat || 69 intelObj->mt->first_level != tObj->BaseLevel || 70 intelObj->mt->last_level < intelObj->_MaxLevel || 71 intelObj->mt->width0 != width || 72 intelObj->mt->height0 != height || 73 intelObj->mt->depth0 != depth)) { 74 intel_miptree_release(&intelObj->mt); 75 } 76 77 78 /* May need to create a new tree: 79 */ 80 if (!intelObj->mt) { 81 intelObj->mt = intel_miptree_create(intel, 82 intelObj->base.Target, 83 firstImage->base.Base.TexFormat, 84 tObj->BaseLevel, 85 intelObj->_MaxLevel, 86 width, 87 height, 88 depth, 89 true); 90 if (!intelObj->mt) 91 return false; 92 } 93 94 /* Pull in any images not in the object's tree: 95 */ 96 nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 97 for (face = 0; face < nr_faces; face++) { 98 for (i = tObj->BaseLevel; i <= intelObj->_MaxLevel; i++) { 99 struct intel_texture_image *intelImage = 100 intel_texture_image(intelObj->base.Image[face][i]); 101 /* skip too small size mipmap */ 102 if (intelImage == NULL) 103 break; 104 /* Need to import images in main memory or held in other trees. 105 * If it's a render target, then its data isn't needed to be in 106 * the object tree (otherwise we'd be FBO incomplete), and we need 107 * to keep track of the image's MT as needing to be pulled in still, 108 * or we'll lose the rendering that's done to it. 109 */ 110 if (intelObj->mt != intelImage->mt && 111 !intelImage->used_as_render_target) { 112 intel_miptree_copy_teximage(intel, intelImage, intelObj->mt); 113 } 114 } 115 } 116 117 return true; 118} 119 120/** 121 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT 122 */ 123static void 124intel_tex_map_image_for_swrast(struct intel_context *intel, 125 struct intel_texture_image *intel_image, 126 GLbitfield mode) 127{ 128 int level; 129 int face; 130 struct intel_mipmap_tree *mt; 131 unsigned int x, y; 132 133 if (!intel_image || !intel_image->mt) 134 return; 135 136 level = intel_image->base.Base.Level; 137 face = intel_image->base.Base.Face; 138 mt = intel_image->mt; 139 140 if (mt->target == GL_TEXTURE_3D || 141 mt->target == GL_TEXTURE_2D_ARRAY || 142 mt->target == GL_TEXTURE_1D_ARRAY) { 143 int i; 144 145 /* ImageOffsets[] is only used for swrast's fetch_texel_3d, so we can't 146 * share code with the normal path. 147 */ 148 for (i = 0; i < mt->level[level].depth; i++) { 149 intel_miptree_get_image_offset(mt, level, face, i, &x, &y); 150 intel_image->base.ImageOffsets[i] = x + y * mt->region->pitch; 151 } 152 153 DBG("%s \n", __FUNCTION__); 154 155 intel_image->base.Data = intel_region_map(intel, mt->region, mode); 156 } else { 157 assert(mt->level[level].depth == 1); 158 intel_miptree_get_image_offset(mt, level, face, 0, &x, &y); 159 160 DBG("%s: (%d,%d) -> (%d, %d)/%d\n", 161 __FUNCTION__, face, level, x, y, mt->region->pitch * mt->cpp); 162 163 intel_image->base.Data = intel_region_map(intel, mt->region, mode) + 164 (x + y * mt->region->pitch) * mt->cpp; 165 } 166 167 intel_image->base.RowStride = mt->region->pitch; 168} 169 170static void 171intel_tex_unmap_image_for_swrast(struct intel_context *intel, 172 struct intel_texture_image *intel_image) 173{ 174 if (intel_image && intel_image->mt) { 175 intel_region_unmap(intel, intel_image->mt->region); 176 intel_image->base.Data = NULL; 177 } 178} 179 180/** 181 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT 182 */ 183void 184intel_tex_map_images(struct intel_context *intel, 185 struct intel_texture_object *intelObj, 186 GLbitfield mode) 187{ 188 GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 189 int i, face; 190 191 DBG("%s\n", __FUNCTION__); 192 193 for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) { 194 for (face = 0; face < nr_faces; face++) { 195 struct intel_texture_image *intel_image = 196 intel_texture_image(intelObj->base.Image[face][i]); 197 198 intel_tex_map_image_for_swrast(intel, intel_image, mode); 199 } 200 } 201} 202 203void 204intel_tex_unmap_images(struct intel_context *intel, 205 struct intel_texture_object *intelObj) 206{ 207 GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 208 int i, face; 209 210 for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) { 211 for (face = 0; face < nr_faces; face++) { 212 struct intel_texture_image *intel_image = 213 intel_texture_image(intelObj->base.Image[face][i]); 214 215 intel_tex_unmap_image_for_swrast(intel, intel_image); 216 } 217 } 218} 219