/************************************************************************** * * 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. * **************************************************************************/ /* * Authors: * Keith Whitwell * Michel Dänzer */ #include "pipe/p_state.h" #include "pipe/p_context.h" #include "pipe/p_defines.h" #include "pipe/p_inlines.h" #include "pipe/p_util.h" #include "pipe/p_winsys.h" #include "i915_context.h" #include "i915_texture.h" #include "i915_debug.h" #include "i915_screen.h" static unsigned minify( unsigned d ) { return MAX2(1, d>>1); } static void i915_miptree_set_level_info(struct i915_texture *tex, unsigned level, unsigned nr_images, unsigned x, unsigned y, unsigned w, unsigned h, unsigned d) { struct pipe_texture *pt = &tex->base; assert(level < PIPE_MAX_TEXTURE_LEVELS); pt->width[level] = w; pt->height[level] = h; pt->depth[level] = d; tex->level_offset[level] = (x + y * tex->pitch) * pt->cpp; tex->nr_images[level] = nr_images; /* DBG("%s level %d size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__, level, w, h, d, x, y, tex->level_offset[level]); */ /* Not sure when this would happen, but anyway: */ if (tex->image_offset[level]) { FREE(tex->image_offset[level]); tex->image_offset[level] = NULL; } assert(nr_images); assert(!tex->image_offset[level]); tex->image_offset[level] = (unsigned *) MALLOC(nr_images * sizeof(unsigned)); tex->image_offset[level][0] = 0; } static void i915_miptree_set_image_offset(struct i915_texture *tex, unsigned level, unsigned img, unsigned x, unsigned y) { if (img == 0 && level == 0) assert(x == 0 && y == 0); assert(img < tex->nr_images[level]); tex->image_offset[level][img] = (x + y * tex->pitch); /* DBG("%s level %d img %d pos %d,%d image_offset %x\n", __FUNCTION__, level, img, x, y, tex->image_offset[level][img]); */ } #if 0 static unsigned power_of_two(unsigned x) { int value = 1; while (value <= x) value = value << 1; return value; } #endif static unsigned round_up(unsigned n, unsigned multiple) { return (n + multiple - 1) & ~(multiple - 1); } /** * Special case to deal with display targets. */ static boolean i915_displaytarget_layout(struct pipe_screen *screen, struct i915_texture *tex) { struct pipe_texture *pt = &tex->base; if (pt->last_level > 0 || pt->cpp != 4) return 0; i915_miptree_set_level_info( tex, 0, 1, 0, 0, tex->base.width[0], tex->base.height[0], 1 ); i915_miptree_set_image_offset( tex, 0, 0, 0, 0 ); #if 0 tex->pitch = MAX2(512, power_of_two(tex->base.width[0] * pt->cpp)) / pt->cpp; tex->total_height = round_up(tex->base.height[0], 8); #else tex->pitch = round_up(tex->base.width[0], 64 / pt->cpp); tex->total_height = tex->base.height[0]; #endif return 1; } static void i945_miptree_layout_2d( struct i915_texture *tex ) { struct pipe_texture *pt = &tex->base; int align_h = 2, align_w = 4; unsigned level; unsigned x = 0; unsigned y = 0; unsigned width = pt->width[0]; unsigned height = pt->height[0]; tex->pitch = pt->width[0]; /* May need to adjust pitch to accomodate the placement of * the 2nd mipmap level. This occurs when the alignment * constraints of mipmap placement push the right edge of the * 2nd mipmap level out past the width of its parent. */ if (pt->last_level > 0) { unsigned mip1_width = align_int(minify(pt->width[0]), align_w) + minify(minify(pt->width[0])); if (mip1_width > pt->width[0]) tex->pitch = mip1_width; } /* Pitch must be a whole number of dwords, even though we * express it in texels. */ tex->pitch = align_int(tex->pitch * pt->cpp, 64) / pt->cpp; tex->total_height = 0; for (level = 0; level <= pt->last_level; level++) { unsigned img_height; i915_miptree_set_level_info(tex, level, 1, x, y, width, height, 1); if (pt->compressed) img_height = MAX2(1, height/4); else img_height = align_int(height, align_h); /* Because the images are packed better, the final offset * might not be the maximal one: */ tex->total_height = MAX2(tex->total_height, y + img_height); /* Layout_below: step right after second mipmap level. */ if (level == 1) { x += align_int(width, align_w); } else { y += img_height; } width = minify(width); height = minify(height); } } static const int initial_offsets[6][2] = { {0, 0}, {0, 2}, {1, 0}, {1, 2}, {1, 1}, {1, 3} }; static const int step_offsets[6][2] = { {0, 2}, {0, 2}, {-1, 2}, {-1, 2}, {-1, 1}, {-1, 1} }; static boolean i915_miptree_layout(struct i915_texture * tex) { struct pipe_texture *pt = &tex->base; unsigned level; switch (pt->target) { case PIPE_TEXTURE_CUBE: { const unsigned dim = pt->width[0]; unsigned face; unsigned lvlWidth = pt->width[0], lvlHeight = pt->height[0]; assert(lvlWidth == lvlHeight); /* cubemap images are square */ /* double pitch for cube layouts */ tex->pitch = ((dim * pt->cpp * 2 + 3) & ~3) / pt->cpp; tex->total_height = dim * 4; for (level = 0; level <= pt->last_level; level++) { i915_miptree_set_level_info(tex, level, 6, 0, 0, /*OLD: tex->pitch, tex->total_height,*/ lvlWidth, lvlHeight, 1); lvlWidth /= 2; lvlHeight /= 2; } for (face = 0; face < 6; face++) { unsigned x = initial_offsets[face][0] * dim; unsigned y = initial_offsets[face][1] * dim; unsigned d = dim; for (level = 0; level <= pt->last_level; level++) { i915_miptree_set_image_offset(tex, level, face, x, y); d >>= 1; x += step_offsets[face][0] * d; y += step_offsets[face][1] * d; } } break; } case PIPE_TEXTURE_3D:{ unsigned width = pt->width[0]; unsigned height = pt->height[0]; unsigned depth = pt->depth[0]; unsigned stack_height = 0; /* Calculate the size of a single slice. */ tex->pitch = ((pt->width[0] * pt->cpp + 3) & ~3) / pt->cpp; /* XXX: hardware expects/requires 9 levels at minimum. */ for (level = 0; level <= MAX2(8, pt->last_level); level++) { i915_miptree_set_level_info(tex, level, depth, 0, tex->total_height, width, height, depth); stack_height += MAX2(2, height); width = minify(width); height = minify(height); depth = minify(depth); } /* Fixup depth image_offsets: */ depth = pt->depth[0]; for (level = 0; level <= pt->last_level; level++) { unsigned i; for (i = 0; i < depth; i++) i915_miptree_set_image_offset(tex, level, i, 0, i * stack_height); depth = minify(depth); } /* Multiply slice size by texture depth for total size. It's * remarkable how wasteful of memory the i915 texture layouts * are. They are largely fixed in the i945. */ tex->total_height = stack_height * pt->depth[0]; break; } default:{ unsigned width = pt->width[0]; unsigned height = pt->height[0]; unsigned img_height; tex->pitch = ((pt->width[0] * pt->cpp + 3) & ~3) / pt->cpp; tex->total_height = 0; for (level = 0; level <= pt->last_level; level++) { i915_miptree_set_level_info(tex, level, 1, 0, tex->total_height, width, height, 1); if (pt->compressed) img_height = MAX2(1, height / 4); else img_height = (MAX2(2, height) + 1) & ~1; tex->total_height += img_height; width = minify(width); height = minify(height); } break; } } /* DBG("%s: %dx%dx%d - sz 0x%x\n", __FUNCTION__, tex->pitch, tex->total_height, pt->cpp, tex->pitch * tex->total_height * pt->cpp); */ return TRUE; } static boolean i945_miptree_layout(struct i915_texture * tex) { struct pipe_texture *pt = &tex->base; unsigned level; switch (pt->target) { case PIPE_TEXTURE_CUBE:{ const unsigned dim = pt->width[0]; unsigned face; unsigned lvlWidth = pt->width[0], lvlHeight = pt->height[0]; assert(lvlWidth == lvlHeight); /* cubemap images are square */ /* Depending on the size of the largest images, pitch can be * determined either by the old-style packing of cubemap faces, * or the final row of 4x4, 2x2 and 1x1 faces below this. */ if (dim > 32) tex->pitch = ((dim * pt->cpp * 2 + 3) & ~3) / pt->cpp; else tex->pitch = 14 * 8; tex->total_height = dim * 4 + 4; /* Set all the levels to effectively occupy the whole rectangular region. */ for (level = 0; level <= pt->last_level; level++) { i915_miptree_set_level_info(tex, level, 6, 0, 0, lvlWidth, lvlHeight, 1); lvlWidth /= 2; lvlHeight /= 2; } for (face = 0; face < 6; face++) { unsigned x = initial_offsets[face][0] * dim; unsigned y = initial_offsets[face][1] * dim; unsigned d = dim; if (dim == 4 && face >= 4) { y = tex->total_height - 4; x = (face - 4) * 8; } else if (dim < 4 && (face > 0)) { y = tex->total_height - 4; x = face * 8; } for (level = 0; level <= pt->last_level; level++) { i915_miptree_set_image_offset(tex, level, face, x, y); d >>= 1; switch (d) { case 4: switch (face) { case PIPE_TEX_FACE_POS_X: case PIPE_TEX_FACE_NEG_X: x += step_offsets[face][0] * d; y += step_offsets[face][1] * d; break; case PIPE_TEX_FACE_POS_Y: case PIPE_TEX_FACE_NEG_Y: y += 12; x -= 8; break; case PIPE_TEX_FACE_POS_Z: case PIPE_TEX_FACE_NEG_Z: y = tex->total_height - 4; x = (face - 4) * 8; break; } case 2: y = tex->total_height - 4; x = 16 + face * 8; break; case 1: x += 48; break; default: x += step_offsets[face][0] * d; y += step_offsets[face][1] * d; break; } } } break; } case PIPE_TEXTURE_3D:{ unsigned width = pt->width[0]; unsigned height = pt->height[0]; unsigned depth = pt->depth[0]; unsigned pack_x_pitch, pack_x_nr; unsigned pack_y_pitch; unsigned level; tex->pitch = ((pt->width[0] * pt->cpp + 3) & ~3) / pt->cpp; tex->total_height = 0; pack_y_pitch = MAX2(pt->height[0], 2); pack_x_pitch = tex->pitch; pack_x_nr = 1; for (level = 0; level <= pt->last_level; level++) { unsigned nr_images = pt->target == PIPE_TEXTURE_3D ? depth : 6; int x = 0; int y = 0; unsigned q, j; i915_miptree_set_level_info(tex, level, nr_images, 0, tex->total_height, width, height, depth); for (q = 0; q < nr_images;) { for (j = 0; j < pack_x_nr && q < nr_images; j++, q++) { i915_miptree_set_image_offset(tex, level, q, x, y); x += pack_x_pitch; } x = 0; y += pack_y_pitch; } tex->total_height += y; if (pack_x_pitch > 4) { pack_x_pitch >>= 1; pack_x_nr <<= 1; assert(pack_x_pitch * pack_x_nr <= tex->pitch); } if (pack_y_pitch > 2) { pack_y_pitch >>= 1; } width = minify(width); height = minify(height); depth = minify(depth); } break; } case PIPE_TEXTURE_1D: case PIPE_TEXTURE_2D: // case PIPE_TEXTURE_RECTANGLE: i945_miptree_layout_2d(tex); break; default: assert(0); return FALSE; } /* DBG("%s: %dx%dx%d - sz 0x%x\n", __FUNCTION__, tex->pitch, tex->total_height, pt->cpp, tex->pitch * tex->total_height * pt->cpp); */ return TRUE; } static struct pipe_texture * i915_texture_create(struct pipe_screen *screen, const struct pipe_texture *templat) { struct i915_screen *i915screen = i915_screen(screen); struct pipe_winsys *ws = screen->winsys; struct i915_texture *tex = CALLOC_STRUCT(i915_texture); if (!tex) return NULL; tex->base = *templat; tex->base.refcount = 1; tex->base.screen = screen; if (i915screen->is_i945) { if (!i945_miptree_layout(tex)) goto fail; } else { if (!i915_miptree_layout(tex)) goto fail; } tex->buffer = ws->buffer_create(ws, 64, PIPE_BUFFER_USAGE_PIXEL, tex->pitch * tex->base.cpp * tex->total_height); if (!tex->buffer) goto fail; return &tex->base; fail: FREE(tex); return NULL; } static void i915_texture_release(struct pipe_screen *screen, struct pipe_texture **pt) { if (!*pt) return; /* DBG("%s %p refcount will be %d\n", __FUNCTION__, (void *) *pt, (*pt)->refcount - 1); */ if (--(*pt)->refcount <= 0) { struct i915_texture *tex = (struct i915_texture *)*pt; uint i; /* DBG("%s deleting %p\n", __FUNCTION__, (void *) tex); */ pipe_buffer_reference(screen->winsys, &tex->buffer, NULL); for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS; i++) if (tex->image_offset[i]) FREE(tex->image_offset[i]); FREE(tex); } *pt = NULL; } /* * XXX note: same as code in sp_surface.c */ static struct pipe_surface * i915_get_tex_surface(struct pipe_screen *screen, struct pipe_texture *pt, unsigned face, unsigned level, unsigned zslice, unsigned flags) { struct i915_texture *tex = (struct i915_texture *)pt; struct pipe_winsys *ws = screen->winsys; struct pipe_surface *ps; unsigned offset; /* in bytes */ offset = tex->level_offset[level]; if (pt->target == PIPE_TEXTURE_CUBE) { offset += tex->image_offset[level][face] * pt->cpp; } else if (pt->target == PIPE_TEXTURE_3D) { offset += tex->image_offset[level][zslice] * pt->cpp; } else { assert(face == 0); assert(zslice == 0); } ps = CALLOC_STRUCT(pipe_surface);//ws->surface_alloc(ws); if (ps) { ps->refcount = 1; ps->winsys = ws; pipe_texture_reference(&ps->texture, pt); pipe_buffer_reference(ws, &ps->buffer, tex->buffer); ps->format = pt->format; ps->cpp = pt->cpp; ps->width = pt->width[level]; ps->height = pt->height[level]; ps->pitch = tex->pitch; ps->offset = offset; ps->usage = flags; } return ps; } void i915_init_texture_functions(struct i915_context *i915) { // i915->pipe.texture_update = i915_texture_update; } static void i915_tex_surface_release(struct pipe_screen *screen, struct pipe_surface **surface) { struct pipe_surface *surf = *surface; if (--surf->refcount == 0) { /* This really should not be possible, but it's actually * happening quite a bit... Will fix. */ if (surf->status == PIPE_SURFACE_STATUS_CLEAR) { debug_printf("XXX destroying a surface with pending clears...\n"); assert(0); } pipe_texture_reference(&surf->texture, NULL); pipe_buffer_reference(screen->winsys, &surf->buffer, NULL); FREE(surf); } *surface = NULL; } void i915_init_screen_texture_functions(struct pipe_screen *screen) { screen->texture_create = i915_texture_create; screen->texture_release = i915_texture_release; screen->get_tex_surface = i915_get_tex_surface; screen->tex_surface_release = i915_tex_surface_release; }