+++ /dev/null
-/**************************************************************************
- *
- * 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.
- *
- **************************************************************************/
-
-
-/**
- * Software Z buffer/surface.
- *
- * \author Brian Paul
- */
-
-
-#include "main/imports.h"
-#include "pipe/p_state.h"
-#include "pipe/p_defines.h"
-#include "sp_context.h"
-#include "sp_surface.h"
-#include "sp_z_surface.h"
-
-static void
-z16_read_quad_z(struct softpipe_surface *sps,
- GLint x, GLint y, GLuint zzzz[QUAD_SIZE])
-{
- const GLushort *src
- = (GLushort *) sps->surface.region->map + y * sps->surface.region->pitch + x;
-
- assert(sps->surface.format == PIPE_FORMAT_U_Z16);
-
- /* converting GLushort to GLuint: */
- zzzz[0] = src[0];
- zzzz[1] = src[1];
- zzzz[2] = src[sps->surface.region->pitch + 0];
- zzzz[3] = src[sps->surface.region->pitch + 1];
-}
-
-static void
-z16_write_quad_z(struct softpipe_surface *sps,
- GLint x, GLint y, const GLuint zzzz[QUAD_SIZE])
-{
- GLushort *dst = (GLushort *) sps->surface.region->map + y * sps->surface.region->pitch + x;
-
- assert(sps->surface.format == PIPE_FORMAT_U_Z16);
-
- /* converting GLuint to GLushort: */
- dst[0] = zzzz[0];
- dst[1] = zzzz[1];
- dst[sps->surface.region->pitch + 0] = zzzz[2];
- dst[sps->surface.region->pitch + 1] = zzzz[3];
-}
-
-static void
-z32_read_quad_z(struct softpipe_surface *sps,
- GLint x, GLint y, GLuint zzzz[QUAD_SIZE])
-{
- const GLuint *src
- = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
-
- assert(sps->surface.format == PIPE_FORMAT_U_Z32);
-
- zzzz[0] = src[0];
- zzzz[1] = src[1];
- zzzz[2] = src[sps->surface.region->pitch + 0];
- zzzz[3] = src[sps->surface.region->pitch + 1];
-}
-
-static void
-z32_write_quad_z(struct softpipe_surface *sps,
- GLint x, GLint y, const GLuint zzzz[QUAD_SIZE])
-{
- GLuint *dst = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
-
- assert(sps->surface.format == PIPE_FORMAT_U_Z32);
-
- dst[0] = zzzz[0];
- dst[1] = zzzz[1];
- dst[sps->surface.region->pitch + 0] = zzzz[2];
- dst[sps->surface.region->pitch + 1] = zzzz[3];
-}
-
-static void
-z24s8_read_quad_z(struct softpipe_surface *sps,
- GLint x, GLint y, GLuint zzzz[QUAD_SIZE])
-{
- const GLuint *src
- = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
-
- assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
-
- zzzz[0] = src[0] >> 8;
- zzzz[1] = src[1] >> 8;
- zzzz[2] = src[sps->surface.region->pitch + 0] >> 8;
- zzzz[3] = src[sps->surface.region->pitch + 1] >> 8;
-}
-
-static void
-z24s8_write_quad_z(struct softpipe_surface *sps,
- GLint x, GLint y, const GLuint zzzz[QUAD_SIZE])
-{
- GLuint *dst = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
-
- assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
- assert(zzzz[0] <= 0xffffff);
-
- dst[0] = (dst[0] & 0xff) | (zzzz[0] << 8);
- dst[1] = (dst[1] & 0xff) | (zzzz[1] << 8);
- dst += sps->surface.region->pitch;
- dst[0] = (dst[0] & 0xff) | (zzzz[2] << 8);
- dst[1] = (dst[1] & 0xff) | (zzzz[3] << 8);
-}
-
-static void
-z24s8_read_quad_stencil(struct softpipe_surface *sps,
- GLint x, GLint y, GLubyte ssss[QUAD_SIZE])
-{
- const GLuint *src
- = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
-
- assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
-
- ssss[0] = src[0] & 0xff;
- ssss[1] = src[1] & 0xff;
- ssss[2] = src[sps->surface.region->pitch + 0] & 0xff;
- ssss[3] = src[sps->surface.region->pitch + 1] & 0xff;
-}
-
-static void
-z24s8_write_quad_stencil(struct softpipe_surface *sps,
- GLint x, GLint y, const GLubyte ssss[QUAD_SIZE])
-{
- GLuint *dst = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x;
-
- assert(sps->surface.format == PIPE_FORMAT_Z24_S8);
-
- dst[0] = (dst[0] & 0xffffff00) | ssss[0];
- dst[1] = (dst[1] & 0xffffff00) | ssss[1];
- dst += sps->surface.region->pitch;
- dst[0] = (dst[0] & 0xffffff00) | ssss[2];
- dst[1] = (dst[1] & 0xffffff00) | ssss[3];
-}
-
-
-static void
-s8_read_quad_stencil(struct softpipe_surface *sps,
- GLint x, GLint y, GLubyte ssss[QUAD_SIZE])
-{
- const GLubyte *src
- = sps->surface.region->map + y * sps->surface.region->pitch + x;
-
- assert(sps->surface.format == PIPE_FORMAT_U_S8);
-
- ssss[0] = src[0];
- ssss[1] = src[1];
- src += sps->surface.region->pitch;
- ssss[2] = src[0];
- ssss[3] = src[1];
-}
-
-static void
-s8_write_quad_stencil(struct softpipe_surface *sps,
- GLint x, GLint y, const GLubyte ssss[QUAD_SIZE])
-{
- GLubyte *dst
- = sps->surface.region->map + y * sps->surface.region->pitch + x;
-
- assert(sps->surface.format == PIPE_FORMAT_U_S8);
-
- dst[0] = ssss[0];
- dst[1] = ssss[1];
- dst += sps->surface.region->pitch;
- dst[0] = ssss[2];
- dst[1] = ssss[3];
-}
-
-
-
-/**
- * Create a new software-based Z buffer.
- * \param format one of the PIPE_FORMAT_z* formats
- */
-struct softpipe_surface *
-softpipe_new_z_surface(GLuint format)
-{
- struct softpipe_surface *sps = CALLOC_STRUCT(softpipe_surface);
- if (!sps)
- return NULL;
-
- sps->surface.format = format;
-
- return sps;
-}
+++ /dev/null
-/**************************************************************************
- *
- * 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.
- *
- **************************************************************************/
-
-
-#ifndef SP_Z_SURFACE_H
-#define SP_Z_SURFACE_H
-
-
-extern struct softpipe_surface *
-softpipe_new_z_surface(GLuint format);
-
-
-#endif /* SP_Z_SURFACE_H */
projects / mesa.git / commitdiff