diff options
Diffstat (limited to 'src/gallium/drivers/i915simple/i915_surface.c')
| -rw-r--r-- | src/gallium/drivers/i915simple/i915_surface.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915simple/i915_surface.c b/src/gallium/drivers/i915simple/i915_surface.c new file mode 100644 index 0000000000..de0cc5fe06 --- /dev/null +++ b/src/gallium/drivers/i915simple/i915_surface.c @@ -0,0 +1,191 @@ +/************************************************************************** + * + * 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 "i915_context.h" +#include "i915_blit.h" +#include "i915_state.h" +#include "pipe/p_defines.h" +#include "pipe/p_inlines.h" +#include "pipe/p_util.h" +#include "pipe/p_inlines.h" +#include "pipe/p_winsys.h" +#include "pipe/util/p_tile.h" + + +/* + * XXX note: same as code in sp_surface.c + */ +static struct pipe_surface * +i915_get_tex_surface(struct pipe_context *pipe, + struct pipe_texture *pt, + unsigned face, unsigned level, unsigned zslice) +{ + struct i915_texture *tex = (struct i915_texture *)pt; + 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 = pipe->winsys->surface_alloc(pipe->winsys); + if (ps) { + assert(ps->refcount); + assert(ps->winsys); + pipe_buffer_reference(pipe->winsys, &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; + } + return ps; +} + + + +/* Assumes all values are within bounds -- no checking at this level - + * do it higher up if required. + */ +static void +i915_surface_copy(struct pipe_context *pipe, + unsigned do_flip, + struct pipe_surface *dst, + unsigned dstx, unsigned dsty, + struct pipe_surface *src, + unsigned srcx, unsigned srcy, unsigned width, unsigned height) +{ + assert( dst != src ); + assert( dst->cpp == src->cpp ); + + if (0) { + pipe_copy_rect(pipe_surface_map(dst), + dst->cpp, + dst->pitch, + dstx, dsty, + width, height, + pipe_surface_map(src), + do_flip ? -(int) src->pitch : src->pitch, + srcx, do_flip ? 1 - srcy - height : srcy); + + pipe_surface_unmap(src); + pipe_surface_unmap(dst); + } + else { + i915_copy_blit( i915_context(pipe), + do_flip, + dst->cpp, + (short) src->pitch, src->buffer, src->offset, + (short) dst->pitch, dst->buffer, dst->offset, + (short) srcx, (short) srcy, (short) dstx, (short) dsty, (short) width, (short) height ); + } +} + +/* Fill a rectangular sub-region. Need better logic about when to + * push buffers into AGP - will currently do so whenever possible. + */ +static void * +get_pointer(struct pipe_surface *dst, void *dst_map, unsigned x, unsigned y) +{ + return (char *)dst_map + (y * dst->pitch + x) * dst->cpp; +} + + +static void +i915_surface_fill(struct pipe_context *pipe, + struct pipe_surface *dst, + unsigned dstx, unsigned dsty, + unsigned width, unsigned height, unsigned value) +{ + if (0) { + unsigned i, j; + void *dst_map = pipe_surface_map(dst); + + switch (dst->cpp) { + case 1: { + ubyte *row = get_pointer(dst, dst_map, dstx, dsty); + for (i = 0; i < height; i++) { + memset(row, value, width); + row += dst->pitch; + } + } + break; + case 2: { + ushort *row = get_pointer(dst, dst_map, dstx, dsty); + for (i = 0; i < height; i++) { + for (j = 0; j < width; j++) + row[j] = (ushort) value; + row += dst->pitch; + } + } + break; + case 4: { + unsigned *row = get_pointer(dst, dst_map, dstx, dsty); + for (i = 0; i < height; i++) { + for (j = 0; j < width; j++) + row[j] = value; + row += dst->pitch; + } + } + break; + default: + assert(0); + break; + } + + pipe_surface_unmap( dst ); + } + else { + i915_fill_blit( i915_context(pipe), + dst->cpp, + (short) dst->pitch, + dst->buffer, dst->offset, + (short) dstx, (short) dsty, + (short) width, (short) height, + value ); + } +} + + +void +i915_init_surface_functions(struct i915_context *i915) +{ + i915->pipe.get_tex_surface = i915_get_tex_surface; + + i915->pipe.surface_copy = i915_surface_copy; + i915->pipe.surface_fill = i915_surface_fill; +} |