diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_surface.c')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_surface.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_surface.c b/src/gallium/drivers/llvmpipe/lp_surface.c new file mode 100644 index 0000000000..76b3fce1fa --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_surface.c @@ -0,0 +1,158 @@ +/************************************************************************** + * + * 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 "util/u_rect.h" +#include "util/u_surface.h" +#include "lp_context.h" +#include "lp_flush.h" +#include "lp_limits.h" +#include "lp_surface.h" +#include "lp_texture.h" + + +/** + * Adjust x, y, width, height to lie on tile bounds. + */ +static void +adjust_to_tile_bounds(unsigned x, unsigned y, unsigned width, unsigned height, + unsigned *x_tile, unsigned *y_tile, + unsigned *w_tile, unsigned *h_tile) +{ + *x_tile = x & ~(TILE_SIZE - 1); + *y_tile = y & ~(TILE_SIZE - 1); + *w_tile = ((x + width + TILE_SIZE - 1) & ~(TILE_SIZE - 1)) - *x_tile; + *h_tile = ((y + height + TILE_SIZE - 1) & ~(TILE_SIZE - 1)) - *y_tile; +} + + + +static void +lp_resource_copy(struct pipe_context *pipe, + struct pipe_resource *dst, struct pipe_subresource subdst, + unsigned dstx, unsigned dsty, unsigned dstz, + struct pipe_resource *src, struct pipe_subresource subsrc, + unsigned srcx, unsigned srcy, unsigned srcz, + unsigned width, unsigned height) +{ + /* XXX what about the dstz/srcz parameters - zslice wasn't used... */ + struct llvmpipe_resource *src_tex = llvmpipe_resource(src); + struct llvmpipe_resource *dst_tex = llvmpipe_resource(dst); + const enum pipe_format format = src_tex->base.format; + + llvmpipe_flush_resource(pipe, + dst, subdst.face, subdst.level, + 0, /* flush_flags */ + FALSE, /* read_only */ + FALSE, /* cpu_access */ + FALSE); /* do_not_block */ + + llvmpipe_flush_resource(pipe, + src, subsrc.face, subsrc.level, + 0, /* flush_flags */ + TRUE, /* read_only */ + FALSE, /* cpu_access */ + FALSE); /* do_not_block */ + + /* + printf("surface copy from %u to %u: %u,%u to %u,%u %u x %u\n", + src_tex->id, dst_tex->id, + srcx, srcy, dstx, dsty, width, height); + */ + + /* set src tiles to linear layout */ + { + unsigned tx, ty, tw, th; + unsigned x, y; + + adjust_to_tile_bounds(srcx, srcy, width, height, &tx, &ty, &tw, &th); + + for (y = 0; y < th; y += TILE_SIZE) { + for (x = 0; x < tw; x += TILE_SIZE) { + (void) llvmpipe_get_texture_tile_linear(src_tex, + subsrc.face, subsrc.level, + LP_TEX_USAGE_READ, + tx + x, ty + y); + } + } + } + + /* set dst tiles to linear layout */ + { + unsigned tx, ty, tw, th; + unsigned x, y; + enum lp_texture_usage usage; + + /* XXX for the tiles which are completely contained by the + * dest rectangle, we could set the usage mode to WRITE_ALL. + * Just test for the case of replacing the whole dest region for now. + */ + if (width == dst_tex->base.width0 && height == dst_tex->base.height0) + usage = LP_TEX_USAGE_WRITE_ALL; + else + usage = LP_TEX_USAGE_READ_WRITE; + + adjust_to_tile_bounds(dstx, dsty, width, height, &tx, &ty, &tw, &th); + + for (y = 0; y < th; y += TILE_SIZE) { + for (x = 0; x < tw; x += TILE_SIZE) { + (void) llvmpipe_get_texture_tile_linear(dst_tex, + subdst.face, subdst.level, + usage, + tx + x, ty + y); + } + } + } + + /* copy */ + { + const ubyte *src_linear_ptr + = llvmpipe_get_texture_image_address(src_tex, subsrc.face, + subsrc.level, + LP_TEX_LAYOUT_LINEAR); + ubyte *dst_linear_ptr + = llvmpipe_get_texture_image_address(dst_tex, subdst.face, + subdst.level, + LP_TEX_LAYOUT_LINEAR); + + util_copy_rect(dst_linear_ptr, format, + llvmpipe_resource_stride(&dst_tex->base, subdst.level), + dstx, dsty, + width, height, + src_linear_ptr, + llvmpipe_resource_stride(&src_tex->base, subsrc.level), + srcx, srcy); + } +} + + +void +llvmpipe_init_surface_functions(struct llvmpipe_context *lp) +{ + lp->pipe.resource_copy_region = lp_resource_copy; + lp->pipe.clear_render_target = util_clear_render_target; + lp->pipe.clear_depth_stencil = util_clear_depth_stencil; +} |