From 0402d388cb9803652c0f9a52ba7dcb6029fdd0b9 Mon Sep 17 00:00:00 2001 From: marha Date: Sat, 30 Apr 2011 15:25:48 +0000 Subject: Added extra needed files --- mesalib/src/gallium/auxiliary/util/u_surface.c | 371 +++++++++++++++++++++++++ 1 file changed, 371 insertions(+) create mode 100644 mesalib/src/gallium/auxiliary/util/u_surface.c (limited to 'mesalib/src/gallium/auxiliary/util/u_surface.c') diff --git a/mesalib/src/gallium/auxiliary/util/u_surface.c b/mesalib/src/gallium/auxiliary/util/u_surface.c new file mode 100644 index 000000000..26f2aee99 --- /dev/null +++ b/mesalib/src/gallium/auxiliary/util/u_surface.c @@ -0,0 +1,371 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. 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 VMWARE 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. + * + **************************************************************************/ + +/** + * @file + * Surface utility functions. + * + * @author Brian Paul + */ + + +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" +#include "pipe/p_state.h" + +#include "util/u_format.h" +#include "util/u_inlines.h" +#include "util/u_rect.h" +#include "util/u_surface.h" +#include "util/u_pack_color.h" + +void +u_surface_default_template(struct pipe_surface *view, + const struct pipe_resource *texture, + unsigned bind) +{ + view->format = texture->format; + view->u.tex.level = 0; + view->u.tex.first_layer = 0; + view->u.tex.last_layer = 0; + /* XXX should filter out all non-rt/ds bind flags ? */ + view->usage = bind; +} + +/** + * Helper to quickly create an RGBA rendering surface of a certain size. + * \param textureOut returns the new texture + * \param surfaceOut returns the new surface + * \return TRUE for success, FALSE if failure + */ +boolean +util_create_rgba_surface(struct pipe_context *pipe, + uint width, uint height, + uint bind, + struct pipe_resource **textureOut, + struct pipe_surface **surfaceOut) +{ + static const enum pipe_format rgbaFormats[] = { + PIPE_FORMAT_B8G8R8A8_UNORM, + PIPE_FORMAT_A8R8G8B8_UNORM, + PIPE_FORMAT_A8B8G8R8_UNORM, + PIPE_FORMAT_NONE + }; + const uint target = PIPE_TEXTURE_2D; + enum pipe_format format = PIPE_FORMAT_NONE; + struct pipe_resource templ; + struct pipe_surface surf_templ; + struct pipe_screen *screen = pipe->screen; + uint i; + + /* Choose surface format */ + for (i = 0; rgbaFormats[i]; i++) { + if (screen->is_format_supported(screen, rgbaFormats[i], + target, 0, bind)) { + format = rgbaFormats[i]; + break; + } + } + if (format == PIPE_FORMAT_NONE) + return FALSE; /* unable to get an rgba format!?! */ + + /* create texture */ + memset(&templ, 0, sizeof(templ)); + templ.target = target; + templ.format = format; + templ.last_level = 0; + templ.width0 = width; + templ.height0 = height; + templ.depth0 = 1; + templ.array_size = 1; + templ.bind = bind; + + *textureOut = screen->resource_create(screen, &templ); + if (!*textureOut) + return FALSE; + + /* create surface */ + memset(&surf_templ, 0, sizeof(surf_templ)); + u_surface_default_template(&surf_templ, *textureOut, bind); + /* create surface / view into texture */ + *surfaceOut = pipe->create_surface(pipe, + *textureOut, + &surf_templ); + if (!*surfaceOut) { + pipe_resource_reference(textureOut, NULL); + return FALSE; + } + + return TRUE; +} + + +/** + * Release the surface and texture from util_create_rgba_surface(). + */ +void +util_destroy_rgba_surface(struct pipe_resource *texture, + struct pipe_surface *surface) +{ + pipe_surface_reference(&surface, NULL); + pipe_resource_reference(&texture, NULL); +} + + + +/** + * Fallback function for pipe->resource_copy_region(). + * Note: (X,Y)=(0,0) is always the upper-left corner. + */ +void +util_resource_copy_region(struct pipe_context *pipe, + struct pipe_resource *dst, + unsigned dst_level, + unsigned dst_x, unsigned dst_y, unsigned dst_z, + struct pipe_resource *src, + unsigned src_level, + const struct pipe_box *src_box) +{ + struct pipe_transfer *src_trans, *dst_trans; + void *dst_map; + const void *src_map; + enum pipe_format src_format, dst_format; + unsigned w = src_box->width; + unsigned h = src_box->height; + + assert(src && dst); + assert((src->target == PIPE_BUFFER && dst->target == PIPE_BUFFER) || + (src->target != PIPE_BUFFER && dst->target != PIPE_BUFFER)); + + if (!src || !dst) + return; + + src_format = src->format; + dst_format = dst->format; + + src_trans = pipe_get_transfer(pipe, + src, + src_level, + src_box->z, + PIPE_TRANSFER_READ, + src_box->x, src_box->y, w, h); + + dst_trans = pipe_get_transfer(pipe, + dst, + dst_level, + dst_z, + PIPE_TRANSFER_WRITE, + dst_x, dst_y, w, h); + + assert(util_format_get_blocksize(dst_format) == util_format_get_blocksize(src_format)); + assert(util_format_get_blockwidth(dst_format) == util_format_get_blockwidth(src_format)); + assert(util_format_get_blockheight(dst_format) == util_format_get_blockheight(src_format)); + + src_map = pipe->transfer_map(pipe, src_trans); + dst_map = pipe->transfer_map(pipe, dst_trans); + + assert(src_map); + assert(dst_map); + + if (src_map && dst_map) { + if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) { + memcpy(dst_map, src_map, w); + } else { + util_copy_rect(dst_map, + dst_format, + dst_trans->stride, + 0, 0, + w, h, + src_map, + src_trans->stride, + 0, + 0); + } + } + + pipe->transfer_unmap(pipe, src_trans); + pipe->transfer_unmap(pipe, dst_trans); + + pipe->transfer_destroy(pipe, src_trans); + pipe->transfer_destroy(pipe, dst_trans); +} + + + +#define UBYTE_TO_USHORT(B) ((B) | ((B) << 8)) + + +/** + * Fallback for pipe->clear_render_target() function. + * XXX this looks too hackish to be really useful. + * cpp > 4 looks like a gross hack at best... + * Plus can't use these transfer fallbacks when clearing + * multisampled surfaces for instance. + */ +void +util_clear_render_target(struct pipe_context *pipe, + struct pipe_surface *dst, + const float *rgba, + unsigned dstx, unsigned dsty, + unsigned width, unsigned height) +{ + struct pipe_transfer *dst_trans; + void *dst_map; + union util_color uc; + + assert(dst->texture); + if (!dst->texture) + return; + /* XXX: should handle multiple layers */ + dst_trans = pipe_get_transfer(pipe, + dst->texture, + dst->u.tex.level, + dst->u.tex.first_layer, + PIPE_TRANSFER_WRITE, + dstx, dsty, width, height); + + dst_map = pipe->transfer_map(pipe, dst_trans); + + assert(dst_map); + + if (dst_map) { + assert(dst_trans->stride > 0); + + util_pack_color(rgba, dst->texture->format, &uc); + util_fill_rect(dst_map, dst->texture->format, + dst_trans->stride, + 0, 0, width, height, &uc); + } + + pipe->transfer_unmap(pipe, dst_trans); + pipe->transfer_destroy(pipe, dst_trans); +} + +/** + * Fallback for pipe->clear_stencil() function. + * sw fallback doesn't look terribly useful here. + * Plus can't use these transfer fallbacks when clearing + * multisampled surfaces for instance. + */ +void +util_clear_depth_stencil(struct pipe_context *pipe, + struct pipe_surface *dst, + unsigned clear_flags, + double depth, + unsigned stencil, + unsigned dstx, unsigned dsty, + unsigned width, unsigned height) +{ + struct pipe_transfer *dst_trans; + ubyte *dst_map; + boolean need_rmw = FALSE; + + if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) && + ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) && + util_format_is_depth_and_stencil(dst->format)) + need_rmw = TRUE; + + assert(dst->texture); + if (!dst->texture) + return; + dst_trans = pipe_get_transfer(pipe, + dst->texture, + dst->u.tex.level, + dst->u.tex.first_layer, + (need_rmw ? PIPE_TRANSFER_READ_WRITE : + PIPE_TRANSFER_WRITE), + dstx, dsty, width, height); + + dst_map = pipe->transfer_map(pipe, dst_trans); + + assert(dst_map); + + if (dst_map) { + unsigned dst_stride = dst_trans->stride; + unsigned zstencil = util_pack_z_stencil(dst->texture->format, depth, stencil); + unsigned i, j; + assert(dst_trans->stride > 0); + + switch (util_format_get_blocksize(dst->format)) { + case 1: + assert(dst->format == PIPE_FORMAT_S8_USCALED); + if(dst_stride == width) + memset(dst_map, (ubyte) zstencil, height * width); + else { + for (i = 0; i < height; i++) { + memset(dst_map, (ubyte) zstencil, width); + dst_map += dst_stride; + } + } + break; + case 2: + assert(dst->format == PIPE_FORMAT_Z16_UNORM); + for (i = 0; i < height; i++) { + uint16_t *row = (uint16_t *)dst_map; + for (j = 0; j < width; j++) + *row++ = (uint16_t) zstencil; + dst_map += dst_stride; + } + break; + case 4: + if (!need_rmw) { + for (i = 0; i < height; i++) { + uint32_t *row = (uint32_t *)dst_map; + for (j = 0; j < width; j++) + *row++ = zstencil; + dst_map += dst_stride; + } + } + else { + uint32_t dst_mask; + if (dst->format == PIPE_FORMAT_Z24_UNORM_S8_USCALED) + dst_mask = 0xffffff00; + else { + assert(dst->format == PIPE_FORMAT_S8_USCALED_Z24_UNORM); + dst_mask = 0xffffff; + } + if (clear_flags & PIPE_CLEAR_DEPTH) + dst_mask = ~dst_mask; + for (i = 0; i < height; i++) { + uint32_t *row = (uint32_t *)dst_map; + for (j = 0; j < width; j++) { + uint32_t tmp = *row & dst_mask; + *row++ = tmp | (zstencil & ~dst_mask); + } + dst_map += dst_stride; + } + } + break; + case 8: + default: + assert(0); + break; + } + } + + pipe->transfer_unmap(pipe, dst_trans); + pipe->transfer_destroy(pipe, dst_trans); +} -- cgit v1.2.3