/************************************************************************** * * Copyright 2007 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 "st_mipmap_tree.h" #include "enums.h" #include "pipe/p_state.h" #include "pipe/p_context.h" #include "pipe/p_defines.h" #include "pipe/p_winsys.h" #define DBG if(0) printf #if 0 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; } } #endif struct pipe_mipmap_tree * st_miptree_create(struct pipe_context *pipe, unsigned target, GLenum internal_format, GLuint first_level, GLuint last_level, GLuint width0, GLuint height0, GLuint depth0, GLuint cpp, GLuint compress_byte) { GLboolean ok; struct pipe_mipmap_tree *mt = calloc(sizeof(*mt), 1); GLbitfield flags = 0x0; assert(target <= PIPE_TEXTURE_CUBE); DBG("%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; 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 = compress_byte ? compress_byte : cpp; mt->compressed = compress_byte ? 1 : 0; mt->refcount = 1; ok = pipe->mipmap_tree_layout(pipe, mt); if (ok) { /* note: it's OK to pass 'pitch' as 'width' here: */ mt->region = pipe->winsys->region_alloc(pipe->winsys, mt->cpp, mt->pitch, mt->total_height, flags); mt->pitch = mt->region->pitch; /*XXX NEW */ } if (!mt->region) { free(mt); return NULL; } return mt; } void st_miptree_reference(struct pipe_mipmap_tree **dst, struct pipe_mipmap_tree *src) { src->refcount++; *dst = src; DBG("%s %p refcount now %d\n", __FUNCTION__, (void *) src, src->refcount); } void st_miptree_release(struct pipe_context *pipe, struct pipe_mipmap_tree **mt) { if (!*mt) return; DBG("%s %p refcount will be %d\n", __FUNCTION__, (void *) *mt, (*mt)->refcount - 1); if (--(*mt)->refcount <= 0) { GLuint i; DBG("%s deleting %p\n", __FUNCTION__, (void *) *mt); pipe->winsys->region_release(pipe->winsys, &((*mt)->region)); for (i = 0; i < MAX_TEXTURE_LEVELS; i++) if ((*mt)->level[i].image_offset) free((*mt)->level[i].image_offset); free(*mt); } *mt = NULL; } /* Can the image be pulled into a unified mipmap tree. This mirrors * the completeness test in a lot of ways. * * Not sure whether I want to pass gl_texture_image here. */ GLboolean st_miptree_match_image(struct pipe_mipmap_tree *mt, struct gl_texture_image *image, GLuint face, GLuint level) { /* Images with borders are never pulled into mipmap trees. */ if (image->Border) return GL_FALSE; if (image->InternalFormat != mt->internal_format || image->IsCompressed != mt->compressed) return GL_FALSE; /* Test image dimensions against the base level image adjusted for * minification. This will also catch images not present in the * tree, changed targets, etc. */ if (image->Width != mt->level[level].width || image->Height != mt->level[level].height || image->Depth != mt->level[level].depth) return GL_FALSE; return GL_TRUE; } /* 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 * st_miptree_depth_offsets(struct pipe_mipmap_tree *mt, GLuint level) { static const GLuint zero = 0; if (mt->target != PIPE_TEXTURE_3D || mt->level[level].nr_images == 1) return &zero; else return mt->level[level].image_offset; } /** * Return the offset to the given mipmap texture image within the * texture memory buffer, in bytes. */ GLuint st_miptree_image_offset(const struct pipe_mipmap_tree * mt, GLuint face, GLuint level) { if (mt->target == PIPE_TEXTURE_CUBE) return (mt->level[level].level_offset + mt->level[level].image_offset[face] * mt->cpp); else return mt->level[level].level_offset; } GLuint st_miptree_texel_offset(const struct pipe_mipmap_tree * mt, GLuint face, GLuint level, GLuint col, GLuint row, GLuint img) { GLuint imgOffset = st_miptree_image_offset(mt, face, level); return imgOffset + row * (mt->pitch + col) * mt->cpp; } /** * Map a teximage in a mipmap tree. * \param row_stride returns row stride in bytes * \param image_stride returns image stride in bytes (for 3D textures). * \return address of mapping */ GLubyte * st_miptree_image_map(struct pipe_context *pipe, struct pipe_mipmap_tree * mt, GLuint face, GLuint level, GLuint * row_stride, GLuint * image_offsets) { GLubyte *ptr; DBG("%s \n", __FUNCTION__); if (row_stride) *row_stride = mt->pitch * mt->cpp; if (image_offsets) memcpy(image_offsets, mt->level[level].image_offset, mt->level[level].depth * sizeof(GLuint)); ptr = pipe->region_map(pipe, mt->region); return ptr + st_miptree_image_offset(mt, face, level); } void st_miptree_image_unmap(struct pipe_context *pipe, struct pipe_mipmap_tree *mt) { DBG("%s\n", __FUNCTION__); pipe->region_unmap(pipe, mt->region); } /* Upload data for a particular image. */ void st_miptree_image_data(struct pipe_context *pipe, struct pipe_mipmap_tree *dst, GLuint face, GLuint level, void *src, GLuint src_row_pitch, GLuint src_image_pitch) { GLuint depth = dst->level[level].depth; GLuint dst_offset = st_miptree_image_offset(dst, face, level); const GLuint *dst_depth_offset = st_miptree_depth_offsets(dst, level); GLuint i; GLuint height = 0; const GLubyte *srcUB = src; DBG("%s\n", __FUNCTION__); for (i = 0; i < depth; i++) { height = dst->level[level].height; if(dst->compressed) height /= 4; pipe->region_data(pipe, dst->region, dst_offset + dst_depth_offset[i], /* dst_offset */ 0, 0, /* dstx, dsty */ srcUB, src_row_pitch, 0, 0, /* source x, y */ dst->level[level].width, height); /* width, height */ srcUB += src_image_pitch * dst->cpp; } } /* Copy mipmap image between trees */ void st_miptree_image_copy(struct pipe_context *pipe, struct pipe_mipmap_tree *dst, GLuint face, GLuint level, struct pipe_mipmap_tree *src) { GLuint width = src->level[level].width; GLuint height = src->level[level].height; GLuint depth = src->level[level].depth; GLuint dst_offset = st_miptree_image_offset(dst, face, level); GLuint src_offset = st_miptree_image_offset(src, face, level); const GLuint *dst_depth_offset = st_miptree_depth_offsets(dst, level); const GLuint *src_depth_offset = st_miptree_depth_offsets(src, level); GLuint i; if (dst->compressed) height /= 4; for (i = 0; i < depth; i++) { pipe->region_copy(pipe, dst->region, dst_offset + dst_depth_offset[i], 0, 0, /* destX, Y */ src->region, src_offset + src_depth_offset[i], 0, 0, /* srcX, Y */ width, height); } }