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Obsolete.
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Brian
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2 changed files with 0 additions and 250 deletions
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/**************************************************************************
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*
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* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* Software Z buffer/surface.
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*
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* \author Brian Paul
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*/
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#include "main/imports.h"
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#include "pipe/p_state.h"
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#include "pipe/p_defines.h"
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#include "sp_context.h"
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#include "sp_surface.h"
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#include "sp_z_surface.h"
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static void
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z16_read_quad_z(struct softpipe_surface *sps,
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GLint x, GLint y, GLuint zzzz[QUAD_SIZE])
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{
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const GLushort *src
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= (GLushort *) sps->surface.region->map + y * sps->surface.region->pitch + x;
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assert(sps->surface.format == PIPE_FORMAT_U_Z16);
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/* converting GLushort to GLuint: */
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zzzz[0] = src[0];
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zzzz[1] = src[1];
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zzzz[2] = src[sps->surface.region->pitch + 0];
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zzzz[3] = src[sps->surface.region->pitch + 1];
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}
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static void
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z16_write_quad_z(struct softpipe_surface *sps,
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GLint x, GLint y, const GLuint zzzz[QUAD_SIZE])
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{
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GLushort *dst = (GLushort *) sps->surface.region->map + y * sps->surface.region->pitch + x;
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assert(sps->surface.format == PIPE_FORMAT_U_Z16);
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/* converting GLuint to GLushort: */
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dst[0] = zzzz[0];
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dst[1] = zzzz[1];
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dst[sps->surface.region->pitch + 0] = zzzz[2];
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dst[sps->surface.region->pitch + 1] = zzzz[3];
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}
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static void
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z32_read_quad_z(struct softpipe_surface *sps,
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GLint x, GLint y, GLuint zzzz[QUAD_SIZE])
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{
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const GLuint *src
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= (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
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assert(sps->surface.format == PIPE_FORMAT_U_Z32);
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zzzz[0] = src[0];
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zzzz[1] = src[1];
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zzzz[2] = src[sps->surface.region->pitch + 0];
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zzzz[3] = src[sps->surface.region->pitch + 1];
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}
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static void
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z32_write_quad_z(struct softpipe_surface *sps,
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GLint x, GLint y, const GLuint zzzz[QUAD_SIZE])
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{
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GLuint *dst = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
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assert(sps->surface.format == PIPE_FORMAT_U_Z32);
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dst[0] = zzzz[0];
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dst[1] = zzzz[1];
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dst[sps->surface.region->pitch + 0] = zzzz[2];
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dst[sps->surface.region->pitch + 1] = zzzz[3];
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}
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static void
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z24s8_read_quad_z(struct softpipe_surface *sps,
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GLint x, GLint y, GLuint zzzz[QUAD_SIZE])
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{
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const GLuint *src
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= (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
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assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
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zzzz[0] = src[0] >> 8;
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zzzz[1] = src[1] >> 8;
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zzzz[2] = src[sps->surface.region->pitch + 0] >> 8;
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zzzz[3] = src[sps->surface.region->pitch + 1] >> 8;
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}
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static void
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z24s8_write_quad_z(struct softpipe_surface *sps,
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GLint x, GLint y, const GLuint zzzz[QUAD_SIZE])
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{
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GLuint *dst = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
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assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
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assert(zzzz[0] <= 0xffffff);
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dst[0] = (dst[0] & 0xff) | (zzzz[0] << 8);
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dst[1] = (dst[1] & 0xff) | (zzzz[1] << 8);
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dst += sps->surface.region->pitch;
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dst[0] = (dst[0] & 0xff) | (zzzz[2] << 8);
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dst[1] = (dst[1] & 0xff) | (zzzz[3] << 8);
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}
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static void
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z24s8_read_quad_stencil(struct softpipe_surface *sps,
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GLint x, GLint y, GLubyte ssss[QUAD_SIZE])
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{
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const GLuint *src
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= (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
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assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
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ssss[0] = src[0] & 0xff;
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ssss[1] = src[1] & 0xff;
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ssss[2] = src[sps->surface.region->pitch + 0] & 0xff;
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ssss[3] = src[sps->surface.region->pitch + 1] & 0xff;
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}
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static void
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z24s8_write_quad_stencil(struct softpipe_surface *sps,
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GLint x, GLint y, const GLubyte ssss[QUAD_SIZE])
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{
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GLuint *dst = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
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assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
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dst[0] = (dst[0] & 0xffffff00) | ssss[0];
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dst[1] = (dst[1] & 0xffffff00) | ssss[1];
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dst += sps->surface.region->pitch;
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dst[0] = (dst[0] & 0xffffff00) | ssss[2];
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dst[1] = (dst[1] & 0xffffff00) | ssss[3];
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}
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static void
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s8_read_quad_stencil(struct softpipe_surface *sps,
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GLint x, GLint y, GLubyte ssss[QUAD_SIZE])
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{
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const GLubyte *src
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= sps->surface.region->map + y * sps->surface.region->pitch + x;
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assert(sps->surface.format == PIPE_FORMAT_U_S8);
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ssss[0] = src[0];
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ssss[1] = src[1];
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src += sps->surface.region->pitch;
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ssss[2] = src[0];
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ssss[3] = src[1];
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}
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static void
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s8_write_quad_stencil(struct softpipe_surface *sps,
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GLint x, GLint y, const GLubyte ssss[QUAD_SIZE])
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{
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GLubyte *dst
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= sps->surface.region->map + y * sps->surface.region->pitch + x;
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assert(sps->surface.format == PIPE_FORMAT_U_S8);
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dst[0] = ssss[0];
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dst[1] = ssss[1];
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dst += sps->surface.region->pitch;
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dst[0] = ssss[2];
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dst[1] = ssss[3];
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}
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/**
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* Create a new software-based Z buffer.
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* \param format one of the PIPE_FORMAT_z* formats
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*/
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struct softpipe_surface *
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softpipe_new_z_surface(GLuint format)
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{
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struct softpipe_surface *sps = CALLOC_STRUCT(softpipe_surface);
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if (!sps)
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return NULL;
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sps->surface.format = format;
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return sps;
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}
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@ -1,37 +0,0 @@
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/**************************************************************************
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*
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* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef SP_Z_SURFACE_H
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#define SP_Z_SURFACE_H
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extern struct softpipe_surface *
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softpipe_new_z_surface(GLuint format);
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#endif /* SP_Z_SURFACE_H */
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