/************************************************************************** * * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ #include "intel_context.h" #include "intel_mipmap_tree.h" #include "intel_regions.h" #include "bufmgr.h" #include "enums.h" #include "imports.h" static GLenum target_to_target( GLenum target ) { switch (target) { case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: return GL_TEXTURE_CUBE_MAP_ARB; default: return target; } } struct intel_mipmap_tree *intel_miptree_create( struct intel_context *intel, GLenum target, GLenum internal_format, GLuint first_level, GLuint last_level, GLuint width0, GLuint height0, GLuint depth0, GLuint cpp, GLboolean compressed) { GLboolean ok; struct intel_mipmap_tree *mt = calloc(sizeof(*mt), 1); if (INTEL_DEBUG & DEBUG_TEXTURE) _mesa_printf("%s target %s format %s level %d..%d\n", __FUNCTION__, _mesa_lookup_enum_by_nr(target), _mesa_lookup_enum_by_nr(internal_format), first_level, last_level); mt->target = target_to_target(target); mt->internal_format = internal_format; mt->first_level = first_level; mt->last_level = last_level; mt->width0 = width0; mt->height0 = height0; mt->depth0 = depth0; mt->cpp = compressed ? 2 : cpp; mt->compressed = compressed; switch (intel->intelScreen->deviceID) { #if 0 case PCI_CHIP_I945_G: ok = i945_miptree_layout( mt ); break; case PCI_CHIP_I915_G: case PCI_CHIP_I915_GM: ok = i915_miptree_layout( mt ); break; #endif default: if (INTEL_DEBUG & DEBUG_TEXTURE) _mesa_printf("assuming BRW texture layouts\n"); ok = brw_miptree_layout( mt ); break; } if (ok) mt->region = intel_region_alloc( intel, mt->cpp, mt->pitch, mt->total_height ); if (!mt->region) { free(mt); return NULL; } return mt; } void intel_miptree_destroy( struct intel_context *intel, struct intel_mipmap_tree *mt ) { if (mt) { GLuint i; intel_region_release(intel, &(mt->region)); for (i = 0; i < MAX_TEXTURE_LEVELS; i++) if (mt->level[i].image_offset) free(mt->level[i].image_offset); free(mt); } } void intel_miptree_set_level_info(struct intel_mipmap_tree *mt, GLuint level, GLuint nr_images, GLuint x, GLuint y, GLuint w, GLuint h, GLuint d) { mt->level[level].width = w; mt->level[level].height = h; mt->level[level].depth = d; mt->level[level].level_offset = (x + y * mt->pitch) * mt->cpp; mt->level[level].nr_images = nr_images; if (INTEL_DEBUG & DEBUG_TEXTURE) _mesa_printf("%s level %d img size: %d,%d level_offset 0x%x\n", __FUNCTION__, level, w, h, mt->level[level].level_offset); /* Not sure when this would happen, but anyway: */ if (mt->level[level].image_offset) { free(mt->level[level].image_offset); mt->level[level].image_offset = NULL; } if (nr_images > 1) { mt->level[level].image_offset = malloc(nr_images * sizeof(GLuint)); mt->level[level].image_offset[0] = 0; } } void intel_miptree_set_image_offset(struct intel_mipmap_tree *mt, GLuint level, GLuint img, GLuint x, GLuint y) { if (INTEL_DEBUG & DEBUG_TEXTURE) _mesa_printf("%s level %d img %d pos %d,%d\n", __FUNCTION__, level, img, x, y); if (img == 0) assert(x == 0 && y == 0); if (img > 0) mt->level[level].image_offset[img] = (x + y * mt->pitch) * mt->cpp; } /* Although we use the image_offset[] array to store relative offsets * to cube faces, Mesa doesn't know anything about this and expects * each cube face to be treated as a separate image. * * These functions present that view to mesa: */ const GLuint *intel_miptree_depth_offsets(struct intel_mipmap_tree *mt, GLuint level) { static const GLuint zero = 0; if (mt->target != GL_TEXTURE_3D || mt->level[level].nr_images == 1) return &zero; else return mt->level[level].image_offset; } GLuint intel_miptree_image_offset(struct intel_mipmap_tree *mt, GLuint face, GLuint level) { if (mt->target == GL_TEXTURE_CUBE_MAP_ARB) return (mt->level[level].level_offset + mt->level[level].image_offset[face]); else return mt->level[level].level_offset; } /* Upload data for a particular image. */ GLboolean intel_miptree_image_data(struct intel_context *intel, struct intel_mipmap_tree *dst, GLuint face, GLuint level, const void *src, GLuint src_row_pitch, GLuint src_image_pitch) { GLuint depth = dst->level[level].depth; GLuint dst_offset = intel_miptree_image_offset(dst, face, level); const GLuint *dst_depth_offset = intel_miptree_depth_offsets(dst, level); GLuint i; DBG("%s\n", __FUNCTION__); for (i = 0; i < depth; i++) { if (!intel_region_data(intel, dst->region, dst_offset + dst_depth_offset[i], 0, 0, src, src_row_pitch, 0, 0, /* source x,y */ dst->level[level].width, dst->level[level].height)) return GL_FALSE; src += src_image_pitch; } return GL_TRUE; }