| /************************************************************************** |
| * |
| * 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; |
| |
| if (util_format_is_pure_uint(format)) { |
| util_format_write_4ui(format, |
| p, src_stride * sizeof(float), |
| dst, pt->stride, |
| x, y, w, h); |
| } else if (util_format_is_pure_sint(format)) { |
| util_format_write_4i(format, |
| p, src_stride * sizeof(float), |
| dst, pt->stride, |
| x, y, w, h); |
| } else { |
| util_format_write_4f(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: |
| if (util_format_is_pure_uint(format)) { |
| util_format_read_4ui(format, |
| dst, dst_stride * sizeof(float), |
| packed, util_format_get_stride(format, w), |
| 0, 0, w, h); |
| } else if (util_format_is_pure_sint(format)) { |
| util_format_read_4i(format, |
| dst, dst_stride * sizeof(float), |
| packed, util_format_get_stride(format, w), |
| 0, 0, w, h); |
| } else { |
| util_format_read_4f(format, |
| dst, dst_stride * sizeof(float), |
| packed, util_format_get_stride(format, w), |
| 0, 0, w, h); |
| } |
| } |
| |
| FREE(packed); |
| } |
