diff options
Diffstat (limited to 'src/mesa/pipe/nv50/nv50_surface.c')
| -rw-r--r-- | src/mesa/pipe/nv50/nv50_surface.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/src/mesa/pipe/nv50/nv50_surface.c b/src/mesa/pipe/nv50/nv50_surface.c new file mode 100644 index 0000000000..68013c0c1d --- /dev/null +++ b/src/mesa/pipe/nv50/nv50_surface.c @@ -0,0 +1,229 @@ + +/************************************************************************** + * + * Copyright 2003 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 "nv50_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_util.h" +#include "pipe/p_winsys.h" +#include "pipe/p_inlines.h" + + +#define CLIP_TILE \ + do { \ + if (x >= ps->width) \ + return; \ + if (y >= ps->height) \ + return; \ + if (x + w > ps->width) \ + w = ps->width - x; \ + if (y + h > ps->height) \ + h = ps->height -y; \ + } while(0) + + +/** + * Note: this is exactly like a8r8g8b8_get_tile() in sp_surface.c + * Share it someday. + */ +static void +nv50_get_tile_rgba(struct pipe_context *pipe, + struct pipe_surface *ps, + uint x, uint y, uint w, uint h, float *p) +{ + const unsigned *src + = ((const unsigned *) (ps->region->map + ps->offset)) + + y * ps->region->pitch + x; + unsigned i, j; + unsigned w0 = w; + + CLIP_TILE; + + switch (ps->format) { + case PIPE_FORMAT_U_A8_R8_G8_B8: + for (i = 0; i < h; i++) { + float *pRow = p; + for (j = 0; j < w; j++) { + const unsigned pixel = src[j]; + pRow[0] = UBYTE_TO_FLOAT((pixel >> 16) & 0xff); + pRow[1] = UBYTE_TO_FLOAT((pixel >> 8) & 0xff); + pRow[2] = UBYTE_TO_FLOAT((pixel >> 0) & 0xff); + pRow[3] = UBYTE_TO_FLOAT((pixel >> 24) & 0xff); + pRow += 4; + } + src += ps->region->pitch; + p += w0 * 4; + } + break; + case PIPE_FORMAT_Z24_S8: + { + const float scale = 1.0 / (float) 0xffffff; + for (i = 0; i < h; i++) { + float *pRow = p; + for (j = 0; j < w; j++) { + const unsigned pixel = src[j]; + pRow[0] = + pRow[1] = + pRow[2] = + pRow[3] = ((pixel & 0xffffff) >> 8) * scale; + pRow += 4; + } + src += ps->region->pitch; + p += w0 * 4; + } + } + break; + default: + assert(0); + } +} + + +static void +nv50_put_tile_rgba(struct pipe_context *pipe, + struct pipe_surface *ps, + uint x, uint y, uint w, uint h, const float *p) +{ + /* TODO */ + assert(0); +} + + +/* + * XXX note: same as code in sp_surface.c + */ +static void +nv50_get_tile(struct pipe_context *pipe, + struct pipe_surface *ps, + uint x, uint y, uint w, uint h, + void *p, int dst_stride) +{ + const uint cpp = ps->region->cpp; + const uint w0 = w; + const ubyte *pSrc; + ubyte *pDest; + uint i; + + assert(ps->region->map); + + CLIP_TILE; + + if (dst_stride == 0) { + dst_stride = w0 * cpp; + } + + pSrc = ps->region->map + ps->offset + (y * ps->region->pitch + x) * cpp; + pDest = (ubyte *) p; + + for (i = 0; i < h; i++) { + memcpy(pDest, pSrc, w0 * cpp); + pDest += dst_stride; + pSrc += ps->region->pitch * cpp; + } +} + + +/* + * XXX note: same as code in sp_surface.c + */ +static void +nv50_put_tile(struct pipe_context *pipe, + struct pipe_surface *ps, + uint x, uint y, uint w, uint h, + const void *p, int src_stride) +{ + const uint cpp = ps->region->cpp; + const uint w0 = w; + const ubyte *pSrc; + ubyte *pDest; + uint i; + + assert(ps->region->map); + + CLIP_TILE; + + if (src_stride == 0) { + src_stride = w0 * cpp; + } + + pSrc = (const ubyte *) p; + pDest = ps->region->map + ps->offset + (y * ps->region->pitch + x) * cpp; + + for (i = 0; i < h; i++) { + memcpy(pDest, pSrc, w0 * cpp); + pDest += ps->region->pitch * cpp; + pSrc += src_stride; + } +} + + +/* + * XXX note: same as code in sp_surface.c + */ +static struct pipe_surface * +nv50_get_tex_surface(struct pipe_context *pipe, + struct pipe_mipmap_tree *mt, + unsigned face, unsigned level, unsigned zslice) +{ + struct pipe_surface *ps; + unsigned offset; /* in bytes */ + + offset = mt->level[level].level_offset; + + if (mt->target == PIPE_TEXTURE_CUBE) { + offset += mt->level[level].image_offset[face] * mt->cpp; + } + else if (mt->target == PIPE_TEXTURE_3D) { + offset += mt->level[level].image_offset[zslice] * mt->cpp; + } + else { + assert(face == 0); + assert(zslice == 0); + } + + ps = pipe->winsys->surface_alloc(pipe->winsys, mt->format); + if (ps) { + assert(ps->format); + assert(ps->refcount); + pipe_region_reference(&ps->region, mt->region); + ps->width = mt->level[level].width; + ps->height = mt->level[level].height; + ps->offset = offset; + } + return ps; +} + + +void +nv50_init_surface_functions(struct nv50_context *nv50) +{ + nv50->pipe.get_tex_surface = nv50_get_tex_surface; + nv50->pipe.get_tile = nv50_get_tile; + nv50->pipe.put_tile = nv50_put_tile; + nv50->pipe.get_tile_rgba = nv50_get_tile_rgba; + nv50->pipe.put_tile_rgba = nv50_put_tile_rgba; +} |