diff options
author | Dave Airlie <airlied@redhat.com> | 2009-02-13 01:11:25 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2009-02-13 01:11:25 +1000 |
commit | 53116910b10e3b8a05f42970eff311c21808699f (patch) | |
tree | 6831e50a56a02fed324f8cb119e05d837e00d7cf /src/gallium/drivers/softpipe/sp_texture.c | |
parent | 7e104f9cde94279a902b408e8d1cf21779b393a8 (diff) | |
parent | 0ccbc3c905f0594a35d72887a1f115e148aaa596 (diff) |
Merge remote branch 'origin/master' into radeon-rewrite
Conflicts:
configure.ac
src/mesa/drivers/dri/r200/r200_context.c
src/mesa/drivers/dri/r300/r300_render.c
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_texture.c')
-rw-r--r-- | src/gallium/drivers/softpipe/sp_texture.c | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c new file mode 100644 index 0000000000..3eed0d0d29 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_texture.c @@ -0,0 +1,348 @@ +/************************************************************************** + * + * 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 <keith@tungstengraphics.com> + * Michel Dänzer <michel@tungstengraphics.com> + */ + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_inlines.h" +#include "pipe/internal/p_winsys_screen.h" +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_texture.h" +#include "sp_tile_cache.h" +#include "sp_screen.h" + + +/* Simple, maximally packed layout. + */ + +static unsigned minify( unsigned d ) +{ + return MAX2(1, d>>1); +} + + +/* Conventional allocation path for non-display textures: + */ +static boolean +softpipe_texture_layout(struct pipe_screen *screen, + struct softpipe_texture * spt) +{ + struct pipe_winsys *ws = screen->winsys; + struct pipe_texture *pt = &spt->base; + unsigned level; + unsigned width = pt->width[0]; + unsigned height = pt->height[0]; + unsigned depth = pt->depth[0]; + + unsigned buffer_size = 0; + + for (level = 0; level <= pt->last_level; level++) { + pt->width[level] = width; + pt->height[level] = height; + pt->depth[level] = depth; + pt->nblocksx[level] = pf_get_nblocksx(&pt->block, width); + pt->nblocksy[level] = pf_get_nblocksy(&pt->block, height); + spt->stride[level] = pt->nblocksx[level]*pt->block.size; + + spt->level_offset[level] = buffer_size; + + buffer_size += (pt->nblocksy[level] * + ((pt->target == PIPE_TEXTURE_CUBE) ? 6 : depth) * + spt->stride[level]); + + width = minify(width); + height = minify(height); + depth = minify(depth); + } + + spt->buffer = ws->buffer_create(ws, 32, + PIPE_BUFFER_USAGE_PIXEL, + buffer_size); + + return spt->buffer != NULL; +} + +static boolean +softpipe_displaytarget_layout(struct pipe_screen *screen, + struct softpipe_texture * spt) +{ + struct pipe_winsys *ws = screen->winsys; + unsigned usage = (PIPE_BUFFER_USAGE_CPU_READ_WRITE | + PIPE_BUFFER_USAGE_GPU_READ_WRITE); + + spt->base.nblocksx[0] = pf_get_nblocksx(&spt->base.block, spt->base.width[0]); + spt->base.nblocksy[0] = pf_get_nblocksy(&spt->base.block, spt->base.height[0]); + + spt->buffer = ws->surface_buffer_create( ws, + spt->base.width[0], + spt->base.height[0], + spt->base.format, + usage, + &spt->stride[0]); + + return spt->buffer != NULL; +} + + + + + +static struct pipe_texture * +softpipe_texture_create(struct pipe_screen *screen, + const struct pipe_texture *templat) +{ + struct softpipe_texture *spt = CALLOC_STRUCT(softpipe_texture); + if (!spt) + return NULL; + + spt->base = *templat; + spt->base.refcount = 1; + spt->base.screen = screen; + + if (spt->base.tex_usage & PIPE_TEXTURE_USAGE_DISPLAY_TARGET) { + if (!softpipe_displaytarget_layout(screen, spt)) + goto fail; + } + else { + if (!softpipe_texture_layout(screen, spt)) + goto fail; + } + + assert(spt->base.refcount == 1); + return &spt->base; + + fail: + FREE(spt); + return NULL; +} + + +static struct pipe_texture * +softpipe_texture_blanket(struct pipe_screen * screen, + const struct pipe_texture *base, + const unsigned *stride, + struct pipe_buffer *buffer) +{ + struct softpipe_texture *spt; + assert(screen); + + /* Only supports one type */ + if (base->target != PIPE_TEXTURE_2D || + base->last_level != 0 || + base->depth[0] != 1) { + return NULL; + } + + spt = CALLOC_STRUCT(softpipe_texture); + if (!spt) + return NULL; + + spt->base = *base; + spt->base.refcount = 1; + spt->base.screen = screen; + spt->base.nblocksx[0] = pf_get_nblocksx(&spt->base.block, spt->base.width[0]); + spt->base.nblocksy[0] = pf_get_nblocksy(&spt->base.block, spt->base.height[0]); + spt->stride[0] = stride[0]; + + pipe_buffer_reference(screen, &spt->buffer, buffer); + + return &spt->base; +} + + +static void +softpipe_texture_release(struct pipe_screen *screen, + struct pipe_texture **pt) +{ + if (!*pt) + return; + + if (--(*pt)->refcount <= 0) { + struct softpipe_texture *spt = softpipe_texture(*pt); + + pipe_buffer_reference(screen, &spt->buffer, NULL); + FREE(spt); + } + *pt = NULL; +} + + +static struct pipe_surface * +softpipe_get_tex_surface(struct pipe_screen *screen, + struct pipe_texture *pt, + unsigned face, unsigned level, unsigned zslice, + unsigned usage) +{ + struct softpipe_texture *spt = softpipe_texture(pt); + struct pipe_surface *ps; + + assert(level <= pt->last_level); + + ps = CALLOC_STRUCT(pipe_surface); + if (ps) { + ps->refcount = 1; + pipe_texture_reference(&ps->texture, pt); + ps->format = pt->format; + ps->block = pt->block; + ps->width = pt->width[level]; + ps->height = pt->height[level]; + ps->nblocksx = pt->nblocksx[level]; + ps->nblocksy = pt->nblocksy[level]; + ps->stride = spt->stride[level]; + ps->offset = spt->level_offset[level]; + ps->usage = usage; + + /* Because we are softpipe, anything that the state tracker + * thought was going to be done with the GPU will actually get + * done with the CPU. Let's adjust the flags to take that into + * account. + */ + if (ps->usage & PIPE_BUFFER_USAGE_GPU_WRITE) { + /* GPU_WRITE means "render" and that can involve reads (blending) */ + ps->usage |= PIPE_BUFFER_USAGE_CPU_WRITE | PIPE_BUFFER_USAGE_CPU_READ; + } + + if (ps->usage & PIPE_BUFFER_USAGE_GPU_READ) + ps->usage |= PIPE_BUFFER_USAGE_CPU_READ; + + if (ps->usage & (PIPE_BUFFER_USAGE_CPU_WRITE | + PIPE_BUFFER_USAGE_GPU_WRITE)) { + /* Mark the surface as dirty. The tile cache will look for this. */ + spt->modified = TRUE; + } + + ps->face = face; + ps->level = level; + ps->zslice = zslice; + + if (pt->target == PIPE_TEXTURE_CUBE || pt->target == PIPE_TEXTURE_3D) { + ps->offset += ((pt->target == PIPE_TEXTURE_CUBE) ? face : zslice) * + ps->nblocksy * + ps->stride; + } + else { + assert(face == 0); + assert(zslice == 0); + } + } + return ps; +} + + +static void +softpipe_tex_surface_release(struct pipe_screen *screen, + struct pipe_surface **s) +{ + struct pipe_surface *surf = *s; + /* Effectively do the texture_update work here - if texture images + * needed post-processing to put them into hardware layout, this is + * where it would happen. For softpipe, nothing to do. + */ + assert(surf->texture); + if (--surf->refcount == 0) { + pipe_texture_reference(&surf->texture, NULL); + FREE(surf); + } + *s = NULL; +} + + +static void * +softpipe_surface_map( struct pipe_screen *screen, + struct pipe_surface *surface, + unsigned flags ) +{ + ubyte *map; + struct softpipe_texture *spt; + + if (flags & ~surface->usage) { + assert(0); + return NULL; + } + + assert(surface->texture); + spt = softpipe_texture(surface->texture); + map = pipe_buffer_map(screen, spt->buffer, flags); + if (map == NULL) + return NULL; + + /* May want to different things here depending on read/write nature + * of the map: + */ + if (surface->texture && + (flags & PIPE_BUFFER_USAGE_CPU_WRITE)) + { + /* Do something to notify sharing contexts of a texture change. + * In softpipe, that would mean flushing the texture cache. + */ + softpipe_screen(screen)->timestamp++; + } + + return map + surface->offset; +} + + +static void +softpipe_surface_unmap(struct pipe_screen *screen, + struct pipe_surface *surface) +{ + struct softpipe_texture *spt; + + assert(surface->texture); + spt = softpipe_texture(surface->texture); + + pipe_buffer_unmap( screen, spt->buffer ); +} + + +void +softpipe_init_texture_funcs(struct softpipe_context *sp) +{ +} + + +void +softpipe_init_screen_texture_funcs(struct pipe_screen *screen) +{ + screen->texture_create = softpipe_texture_create; + screen->texture_blanket = softpipe_texture_blanket; + screen->texture_release = softpipe_texture_release; + + screen->get_tex_surface = softpipe_get_tex_surface; + screen->tex_surface_release = softpipe_tex_surface_release; + + screen->surface_map = softpipe_surface_map; + screen->surface_unmap = softpipe_surface_unmap; +} |