/************************************************************************** * * Copyright 2007 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. * **************************************************************************/ /** * RGBA/float tile get/put functions. * Usable both by drivers and gallium frontends. */ #include "pipe/p_defines.h" #include "util/u_inlines.h" #include "util/format/u_format.h" #include "util/format/u_format_bptc.h" #include "util/u_math.h" #include "util/u_memory.h" #include "util/u_surface.h" #include "util/u_tile.h" /** * Move raw block of pixels from transfer object to user memory. */ void pipe_get_tile_raw(struct pipe_transfer *pt, const void *src, uint x, uint y, uint w, uint h, void *dst, int dst_stride) { if (dst_stride == 0) dst_stride = util_format_get_stride(pt->resource->format, w); if (u_clip_tile(x, y, &w, &h, &pt->box)) return; util_copy_rect(dst, pt->resource->format, dst_stride, 0, 0, w, h, src, pt->stride, x, y); } /** * Move raw block of pixels from user memory to transfer object. */ void pipe_put_tile_raw(struct pipe_transfer *pt, void *dst, uint x, uint y, uint w, uint h, const void *src, int src_stride) { enum pipe_format format = pt->resource->format; if (src_stride == 0) src_stride = util_format_get_stride(format, w); if (u_clip_tile(x, y, &w, &h, &pt->box)) return; util_copy_rect(dst, format, pt->stride, x, y, w, h, src, src_stride, 0, 0); } /** Convert short in [-32768,32767] to GLfloat in [-1.0,1.0] */ #define SHORT_TO_FLOAT(S) ((2.0F * (S) + 1.0F) * (1.0F/65535.0F)) #define UNCLAMPED_FLOAT_TO_SHORT(us, f) \ us = ( (short) ( CLAMP((f), -1.0, 1.0) * 32767.0F) ) /*** PIPE_FORMAT_Z16_UNORM ***/ /** * Return each Z value as four floats in [0,1]. */ static void z16_get_tile_rgba(const ushort *src, unsigned w, unsigned h, float *p, unsigned dst_stride) { const float scale = 1.0f / 65535.0f; unsigned i, j; for (i = 0; i < h; i++) { float *pRow = p; for (j = 0; j < w; j++, pRow += 4) { pRow[0] = pRow[1] = pRow[2] = pRow[3] = *src++ * scale; } p += dst_stride; } } /*** PIPE_FORMAT_Z32_UNORM ***/ /** * Return each Z value as four floats in [0,1]. */ static void z32_get_tile_rgba(const unsigned *src, unsigned w, unsigned h, float *p, unsigned dst_stride) { const double scale = 1.0 / (double) 0xffffffff; unsigned i, j; for (i = 0; i < h; i++) { float *pRow = p; for (j = 0; j < w; j++, pRow += 4) { pRow[0] = pRow[1] = pRow[2] = pRow[3] = (float) (*src++ * scale); } p += dst_stride; } } /*** PIPE_FORMAT_Z24_UNORM_S8_UINT ***/ /** * Return Z component as four float in [0,1]. Stencil part ignored. */ static void s8z24_get_tile_rgba(const unsigned *src, unsigned w, unsigned h, float *p, unsigned dst_stride) { const double scale = 1.0 / ((1 << 24) - 1); unsigned i, j; for (i = 0; i < h; i++) { float *pRow = p; for (j = 0; j < w; j++, pRow += 4) { pRow[0] = pRow[1] = pRow[2] = pRow[3] = (float) (scale * (*src++ & 0xffffff)); } p += dst_stride; } } /*** PIPE_FORMAT_S8_UINT_Z24_UNORM ***/ /** * Return Z component as four float in [0,1]. Stencil part ignored. */ static void z24s8_get_tile_rgba(const unsigned *src, unsigned w, unsigned h, float *p, unsigned dst_stride) { const double scale = 1.0 / ((1 << 24) - 1); unsigned i, j; for (i = 0; i < h; i++) { float *pRow = p; for (j = 0; j < w; j++, pRow += 4) { pRow[0] = pRow[1] = pRow[2] = pRow[3] = (float) (scale * (*src++ >> 8)); } p += dst_stride; } } /*** PIPE_FORMAT_S8X24_UINT ***/ /** * Return S component as four uint32_t in [0..255]. Z part ignored. */ static void s8x24_get_tile_rgba(const unsigned *src, unsigned w, unsigned h, float *p, unsigned dst_stride) { unsigned i, j; for (i = 0; i < h; i++) { uint32_t *pRow = (uint32_t *)p; for (j = 0; j < w; j++, pRow += 4) { pRow[0] = pRow[1] = pRow[2] = pRow[3] = ((*src++ >> 24) & 0xff); } p += dst_stride; } } /*** PIPE_FORMAT_X24S8_UINT ***/ /** * Return S component as four uint32_t in [0..255]. Z part ignored. */ static void x24s8_get_tile_rgba(const unsigned *src, unsigned w, unsigned h, float *p, unsigned dst_stride) { unsigned i, j; for (i = 0; i < h; i++) { uint32_t *pRow = (uint32_t *)p; for (j = 0; j < w; j++, pRow += 4) { pRow[0] = pRow[1] = pRow[2] = pRow[3] = (*src++ & 0xff); } p += dst_stride; } } /** * Return S component as four uint32_t in [0..255]. Z part ignored. */ static void s8_get_tile_rgba(const unsigned char *src, unsigned w, unsigned h, float *p, unsigned dst_stride) { unsigned i, j; for (i = 0; i < h; i++) { uint32_t *pRow = (uint32_t *)p; for (j = 0; j < w; j++, pRow += 4) { pRow[0] = pRow[1] = pRow[2] = pRow[3] = (*src++ & 0xff); } p += dst_stride; } } /*** PIPE_FORMAT_Z32_FLOAT ***/ /** * Return each Z value as four floats in [0,1]. */ static void z32f_get_tile_rgba(const float *src, unsigned w, unsigned h, float *p, unsigned dst_stride) { unsigned i, j; for (i = 0; i < h; i++) { float *pRow = p; for (j = 0; j < w; j++, pRow += 4) { pRow[0] = pRow[1] = pRow[2] = pRow[3] = *src++; } p += dst_stride; } } /*** PIPE_FORMAT_Z32_FLOAT_S8X24_UINT ***/ /** * Return each Z value as four floats in [0,1]. */ static void z32f_x24s8_get_tile_rgba(const float *src, unsigned w, unsigned h, float *p, unsigned dst_stride) { unsigned i, j; for (i = 0; i < h; i++) { float *pRow = p; for (j = 0; j < w; j++, pRow += 4) { pRow[0] = pRow[1] = pRow[2] = pRow[3] = *src; src += 2; } p += dst_stride; } } /*** PIPE_FORMAT_X32_S8X24_UINT ***/ /** * Return S component as four uint32_t in [0..255]. Z part ignored. */ static void x32_s8_get_tile_rgba(const unsigned *src, unsigned w, unsigned h, float *p, unsigned dst_stride) { unsigned i, j; for (i = 0; i < h; i++) { uint32_t *pRow = (uint32_t *)p; for (j = 0; j < w; j++, pRow += 4) { src++; pRow[0] = pRow[1] = pRow[2] = pRow[3] = (*src++ & 0xff); } p += dst_stride; } } void pipe_put_tile_rgba(struct pipe_transfer *pt, void *dst, uint x, uint y, uint w, uint h, enum pipe_format format, const void *p) { unsigned src_stride = w * 4; if (u_clip_tile(x, y, &w, &h, &pt->box)) return; /* While we do generate RGBA tiles for z/s for softpipe's texture fetch * path, we never have to store from "RGBA" to Z/S. */ if (util_format_is_depth_or_stencil(format)) return; util_format_write_4(format, p, src_stride * sizeof(float), dst, pt->stride, x, y, w, h); } void pipe_get_tile_rgba(struct pipe_transfer *pt, const void *src, uint x, uint y, uint w, uint h, enum pipe_format format, void *dst) { unsigned dst_stride = w * 4; void *packed; if (u_clip_tile(x, y, &w, &h, &pt->box)) { return; } packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format)); if (!packed) { return; } if (format == PIPE_FORMAT_UYVY || format == PIPE_FORMAT_YUYV) { assert((x & 1) == 0); } pipe_get_tile_raw(pt, src, x, y, w, h, packed, 0); switch (format) { case PIPE_FORMAT_Z16_UNORM: z16_get_tile_rgba((ushort *) packed, w, h, dst, dst_stride); break; case PIPE_FORMAT_Z32_UNORM: z32_get_tile_rgba((unsigned *) packed, w, h, dst, dst_stride); break; case PIPE_FORMAT_Z24_UNORM_S8_UINT: case PIPE_FORMAT_Z24X8_UNORM: s8z24_get_tile_rgba((unsigned *) packed, w, h, dst, dst_stride); break; case PIPE_FORMAT_S8_UINT: s8_get_tile_rgba((unsigned char *) packed, w, h, dst, dst_stride); break; case PIPE_FORMAT_X24S8_UINT: s8x24_get_tile_rgba((unsigned *) packed, w, h, dst, dst_stride); break; case PIPE_FORMAT_S8_UINT_Z24_UNORM: case PIPE_FORMAT_X8Z24_UNORM: z24s8_get_tile_rgba((unsigned *) packed, w, h, dst, dst_stride); break; case PIPE_FORMAT_S8X24_UINT: x24s8_get_tile_rgba((unsigned *) packed, w, h, dst, dst_stride); break; case PIPE_FORMAT_Z32_FLOAT: z32f_get_tile_rgba((float *) packed, w, h, dst, dst_stride); break; case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT: z32f_x24s8_get_tile_rgba((float *) packed, w, h, dst, dst_stride); break; case PIPE_FORMAT_X32_S8X24_UINT: x32_s8_get_tile_rgba((unsigned *) packed, w, h, dst, dst_stride); break; default: util_format_read_4(format, dst, dst_stride * sizeof(float), packed, util_format_get_stride(format, w), 0, 0, w, h); } FREE(packed); }