intel_tex_validate.c revision 7dae1aaf142999e3cfeafb13d30abda667d66d87
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_tex.h" 8 9#define FILE_DEBUG_FLAG DEBUG_TEXTURE 10 11/** 12 * When validating, we only care about the texture images that could 13 * be seen, so for non-mipmapped modes we want to ignore everything 14 * but BaseLevel. 15 */ 16static void 17intel_update_max_level(struct intel_context *intel, 18 struct intel_texture_object *intelObj, 19 struct gl_sampler_object *sampler) 20{ 21 struct gl_texture_object *tObj = &intelObj->base; 22 23 if (sampler->MinFilter == GL_NEAREST || 24 sampler->MinFilter == GL_LINEAR) { 25 intelObj->_MaxLevel = tObj->BaseLevel; 26 } else { 27 intelObj->_MaxLevel = tObj->_MaxLevel; 28 } 29} 30 31/** 32 * Copies the image's contents at its level into the object's miptree, 33 * and updates the image to point at the object's miptree. 34 */ 35static void 36copy_image_data_to_tree(struct intel_context *intel, 37 struct intel_texture_object *intelObj, 38 struct intel_texture_image *intelImage) 39{ 40 if (intelImage->mt) { 41 /* Copy potentially with the blitter: 42 */ 43 intel_miptree_image_copy(intel, 44 intelObj->mt, 45 intelImage->base.Face, 46 intelImage->base.Level, intelImage->mt); 47 48 intel_miptree_release(intel, &intelImage->mt); 49 } 50 else { 51 assert(intelImage->base.Data != NULL); 52 53 /* More straightforward upload. 54 */ 55 intel_miptree_image_data(intel, 56 intelObj->mt, 57 intelImage->base.Face, 58 intelImage->base.Level, 59 intelImage->base.Data, 60 intelImage->base.RowStride, 61 intelImage->base.RowStride * 62 intelImage->base.Height); 63 _mesa_align_free(intelImage->base.Data); 64 intelImage->base.Data = NULL; 65 } 66 67 intel_miptree_reference(&intelImage->mt, intelObj->mt); 68} 69 70 71/* 72 */ 73GLuint 74intel_finalize_mipmap_tree(struct intel_context *intel, GLuint unit) 75{ 76 struct gl_context *ctx = &intel->ctx; 77 struct gl_texture_object *tObj = intel->ctx.Texture.Unit[unit]._Current; 78 struct intel_texture_object *intelObj = intel_texture_object(tObj); 79 struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit); 80 GLuint face, i; 81 GLuint nr_faces = 0; 82 struct intel_texture_image *firstImage; 83 84 /* We know/require this is true by now: 85 */ 86 assert(intelObj->base._Complete); 87 88 /* What levels must the tree include at a minimum? 89 */ 90 intel_update_max_level(intel, intelObj, sampler); 91 firstImage = intel_texture_image(tObj->Image[0][tObj->BaseLevel]); 92 93 /* Fallback case: 94 */ 95 if (firstImage->base.Border) { 96 if (intelObj->mt) { 97 intel_miptree_release(intel, &intelObj->mt); 98 } 99 return GL_FALSE; 100 } 101 102 /* Check tree can hold all active levels. Check tree matches 103 * target, imageFormat, etc. 104 * 105 * For pre-gen4, we have to match first_level == tObj->BaseLevel, 106 * because we don't have the control that gen4 does to make min/mag 107 * determination happen at a nonzero (hardware) baselevel. Because 108 * of that, we just always relayout on baselevel change. 109 */ 110 if (intelObj->mt && 111 (intelObj->mt->target != intelObj->base.Target || 112 intelObj->mt->format != firstImage->base.TexFormat || 113 intelObj->mt->first_level != tObj->BaseLevel || 114 intelObj->mt->last_level < intelObj->_MaxLevel || 115 intelObj->mt->width0 != firstImage->base.Width || 116 intelObj->mt->height0 != firstImage->base.Height || 117 intelObj->mt->depth0 != firstImage->base.Depth)) { 118 intel_miptree_release(intel, &intelObj->mt); 119 } 120 121 122 /* May need to create a new tree: 123 */ 124 if (!intelObj->mt) { 125 intelObj->mt = intel_miptree_create(intel, 126 intelObj->base.Target, 127 firstImage->base.TexFormat, 128 tObj->BaseLevel, 129 intelObj->_MaxLevel, 130 firstImage->base.Width, 131 firstImage->base.Height, 132 firstImage->base.Depth, 133 GL_TRUE); 134 if (!intelObj->mt) 135 return GL_FALSE; 136 } 137 138 /* Pull in any images not in the object's tree: 139 */ 140 nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 141 for (face = 0; face < nr_faces; face++) { 142 for (i = tObj->BaseLevel; i <= intelObj->_MaxLevel; i++) { 143 struct intel_texture_image *intelImage = 144 intel_texture_image(intelObj->base.Image[face][i]); 145 /* skip too small size mipmap */ 146 if (intelImage == NULL) 147 break; 148 /* Need to import images in main memory or held in other trees. 149 * If it's a render target, then its data isn't needed to be in 150 * the object tree (otherwise we'd be FBO incomplete), and we need 151 * to keep track of the image's MT as needing to be pulled in still, 152 * or we'll lose the rendering that's done to it. 153 */ 154 if (intelObj->mt != intelImage->mt && 155 !intelImage->used_as_render_target) { 156 copy_image_data_to_tree(intel, intelObj, intelImage); 157 } 158 } 159 } 160 161 return GL_TRUE; 162} 163 164void 165intel_tex_map_level_images(struct intel_context *intel, 166 struct intel_texture_object *intelObj, 167 int level) 168{ 169 GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 170 GLuint face; 171 172 for (face = 0; face < nr_faces; face++) { 173 struct intel_texture_image *intelImage = 174 intel_texture_image(intelObj->base.Image[face][level]); 175 176 if (intelImage && intelImage->mt) { 177 intelImage->base.Data = 178 intel_miptree_image_map(intel, 179 intelImage->mt, 180 intelImage->base.Face, 181 intelImage->base.Level, 182 &intelImage->base.RowStride, 183 intelImage->base.ImageOffsets); 184 /* convert stride to texels, not bytes */ 185 intelImage->base.RowStride /= intelImage->mt->cpp; 186 /* intelImage->base.ImageStride /= intelImage->mt->cpp; */ 187 } 188 } 189} 190 191void 192intel_tex_unmap_level_images(struct intel_context *intel, 193 struct intel_texture_object *intelObj, 194 int level) 195{ 196 GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 197 GLuint face; 198 199 for (face = 0; face < nr_faces; face++) { 200 struct intel_texture_image *intelImage = 201 intel_texture_image(intelObj->base.Image[face][level]); 202 203 if (intelImage && intelImage->mt) { 204 intel_miptree_image_unmap(intel, intelImage->mt); 205 intelImage->base.Data = NULL; 206 } 207 } 208} 209 210void 211intel_tex_map_images(struct intel_context *intel, 212 struct intel_texture_object *intelObj) 213{ 214 int i; 215 216 DBG("%s\n", __FUNCTION__); 217 218 for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) 219 intel_tex_map_level_images(intel, intelObj, i); 220} 221 222void 223intel_tex_unmap_images(struct intel_context *intel, 224 struct intel_texture_object *intelObj) 225{ 226 int i; 227 228 for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) 229 intel_tex_unmap_level_images(intel, intelObj, i); 230} 231