diff options
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/Makefile.sources | 2 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/intel_tex_subimage.c | 394 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/intel_tiled_memcpy.c | 450 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/intel_tiled_memcpy.h | 52 |
4 files changed, 506 insertions, 392 deletions
diff --git a/src/mesa/drivers/dri/i965/Makefile.sources b/src/mesa/drivers/dri/i965/Makefile.sources index da484556ea2..37697f3e0bc 100644 --- a/src/mesa/drivers/dri/i965/Makefile.sources +++ b/src/mesa/drivers/dri/i965/Makefile.sources @@ -209,4 +209,6 @@ i965_FILES = \ intel_tex_obj.h \ intel_tex_subimage.c \ intel_tex_validate.c \ + intel_tiled_memcpy.c \ + intel_tiled_memcpy.h \ intel_upload.c diff --git a/src/mesa/drivers/dri/i965/intel_tex_subimage.c b/src/mesa/drivers/dri/i965/intel_tex_subimage.c index 1c6310f3006..4262f71ff4f 100644 --- a/src/mesa/drivers/dri/i965/intel_tex_subimage.c +++ b/src/mesa/drivers/dri/i965/intel_tex_subimage.c @@ -42,372 +42,10 @@ #include "intel_tex.h" #include "intel_mipmap_tree.h" #include "intel_blit.h" - -#ifdef __SSSE3__ -#include <tmmintrin.h> -#endif +#include "intel_tiled_memcpy.h" #define FILE_DEBUG_FLAG DEBUG_TEXTURE -#define ALIGN_DOWN(a, b) ROUND_DOWN_TO(a, b) -#define ALIGN_UP(a, b) ALIGN(a, b) - -/* Tile dimensions. - * Width and span are in bytes, height is in pixels (i.e. unitless). - * A "span" is the most number of bytes we can copy from linear to tiled - * without needing to calculate a new destination address. - */ -static const uint32_t xtile_width = 512; -static const uint32_t xtile_height = 8; -static const uint32_t xtile_span = 64; -static const uint32_t ytile_width = 128; -static const uint32_t ytile_height = 32; -static const uint32_t ytile_span = 16; - -typedef void *(*mem_copy_fn)(void *dest, const void *src, size_t n); - -/** - * Each row from y0 to y1 is copied in three parts: [x0,x1), [x1,x2), [x2,x3). - * These ranges are in bytes, i.e. pixels * bytes-per-pixel. - * The first and last ranges must be shorter than a "span" (the longest linear - * stretch within a tile) and the middle must equal a whole number of spans. - * Ranges may be empty. The region copied must land entirely within one tile. - * 'dst' is the start of the tile and 'src' is the corresponding - * address to copy from, though copying begins at (x0, y0). - * To enable swizzling 'swizzle_bit' must be 1<<6, otherwise zero. - * Swizzling flips bit 6 in the copy destination offset, when certain other - * bits are set in it. - */ -typedef void (*tile_copy_fn)(uint32_t x0, uint32_t x1, uint32_t x2, uint32_t x3, - uint32_t y0, uint32_t y1, - char *dst, const char *src, - uint32_t src_pitch, - uint32_t swizzle_bit, - mem_copy_fn mem_copy); - - -#ifdef __SSSE3__ -static const uint8_t rgba8_permutation[16] = - { 2,1,0,3, 6,5,4,7, 10,9,8,11, 14,13,12,15 }; - -/* NOTE: dst must be 16 byte aligned */ -#define rgba8_copy_16(dst, src) \ - *(__m128i *)(dst) = _mm_shuffle_epi8( \ - (__m128i) _mm_loadu_ps((float *)(src)), \ - *(__m128i *) rgba8_permutation \ - ) -#endif - -/** - * Copy RGBA to BGRA - swap R and B. - */ -static inline void * -rgba8_copy(void *dst, const void *src, size_t bytes) -{ - uint8_t *d = dst; - uint8_t const *s = src; - -#ifdef __SSSE3__ - /* Fast copying for tile spans. - * - * As long as the destination texture is 16 aligned, - * any 16 or 64 spans we get here should also be 16 aligned. - */ - - if (bytes == 16) { - assert(!(((uintptr_t)dst) & 0xf)); - rgba8_copy_16(d+ 0, s+ 0); - return dst; - } - - if (bytes == 64) { - assert(!(((uintptr_t)dst) & 0xf)); - rgba8_copy_16(d+ 0, s+ 0); - rgba8_copy_16(d+16, s+16); - rgba8_copy_16(d+32, s+32); - rgba8_copy_16(d+48, s+48); - return dst; - } -#endif - - while (bytes >= 4) { - d[0] = s[2]; - d[1] = s[1]; - d[2] = s[0]; - d[3] = s[3]; - d += 4; - s += 4; - bytes -= 4; - } - return dst; -} - -/** - * Copy texture data from linear to X tile layout. - * - * \copydoc tile_copy_fn - */ -static inline void -xtile_copy(uint32_t x0, uint32_t x1, uint32_t x2, uint32_t x3, - uint32_t y0, uint32_t y1, - char *dst, const char *src, - uint32_t src_pitch, - uint32_t swizzle_bit, - mem_copy_fn mem_copy) -{ - /* The copy destination offset for each range copied is the sum of - * an X offset 'x0' or 'xo' and a Y offset 'yo.' - */ - uint32_t xo, yo; - - src += y0 * src_pitch; - - for (yo = y0 * xtile_width; yo < y1 * xtile_width; yo += xtile_width) { - /* Bits 9 and 10 of the copy destination offset control swizzling. - * Only 'yo' contributes to those bits in the total offset, - * so calculate 'swizzle' just once per row. - * Move bits 9 and 10 three and four places respectively down - * to bit 6 and xor them. - */ - uint32_t swizzle = ((yo >> 3) ^ (yo >> 4)) & swizzle_bit; - - mem_copy(dst + ((x0 + yo) ^ swizzle), src + x0, x1 - x0); - - for (xo = x1; xo < x2; xo += xtile_span) { - mem_copy(dst + ((xo + yo) ^ swizzle), src + xo, xtile_span); - } - - mem_copy(dst + ((xo + yo) ^ swizzle), src + x2, x3 - x2); - - src += src_pitch; - } -} - -/** - * Copy texture data from linear to Y tile layout. - * - * \copydoc tile_copy_fn - */ -static inline void -ytile_copy( - uint32_t x0, uint32_t x1, uint32_t x2, uint32_t x3, - uint32_t y0, uint32_t y1, - char *dst, const char *src, - uint32_t src_pitch, - uint32_t swizzle_bit, - mem_copy_fn mem_copy) -{ - /* Y tiles consist of columns that are 'ytile_span' wide (and the same height - * as the tile). Thus the destination offset for (x,y) is the sum of: - * (x % column_width) // position within column - * (x / column_width) * bytes_per_column // column number * bytes per column - * y * column_width - * - * The copy destination offset for each range copied is the sum of - * an X offset 'xo0' or 'xo' and a Y offset 'yo.' - */ - const uint32_t column_width = ytile_span; - const uint32_t bytes_per_column = column_width * ytile_height; - - uint32_t xo0 = (x0 % ytile_span) + (x0 / ytile_span) * bytes_per_column; - uint32_t xo1 = (x1 % ytile_span) + (x1 / ytile_span) * bytes_per_column; - - /* Bit 9 of the destination offset control swizzling. - * Only the X offset contributes to bit 9 of the total offset, - * so swizzle can be calculated in advance for these X positions. - * Move bit 9 three places down to bit 6. - */ - uint32_t swizzle0 = (xo0 >> 3) & swizzle_bit; - uint32_t swizzle1 = (xo1 >> 3) & swizzle_bit; - - uint32_t x, yo; - - src += y0 * src_pitch; - - for (yo = y0 * column_width; yo < y1 * column_width; yo += column_width) { - uint32_t xo = xo1; - uint32_t swizzle = swizzle1; - - mem_copy(dst + ((xo0 + yo) ^ swizzle0), src + x0, x1 - x0); - - /* Step by spans/columns. As it happens, the swizzle bit flips - * at each step so we don't need to calculate it explicitly. - */ - for (x = x1; x < x2; x += ytile_span) { - mem_copy(dst + ((xo + yo) ^ swizzle), src + x, ytile_span); - xo += bytes_per_column; - swizzle ^= swizzle_bit; - } - - mem_copy(dst + ((xo + yo) ^ swizzle), src + x2, x3 - x2); - - src += src_pitch; - } -} - -/** - * Copy texture data from linear to X tile layout, faster. - * - * Same as \ref xtile_copy but faster, because it passes constant parameters - * for common cases, allowing the compiler to inline code optimized for those - * cases. - * - * \copydoc tile_copy_fn - */ -static FLATTEN void -xtile_copy_faster(uint32_t x0, uint32_t x1, uint32_t x2, uint32_t x3, - uint32_t y0, uint32_t y1, - char *dst, const char *src, - uint32_t src_pitch, - uint32_t swizzle_bit, - mem_copy_fn mem_copy) -{ - if (x0 == 0 && x3 == xtile_width && y0 == 0 && y1 == xtile_height) { - if (mem_copy == memcpy) - return xtile_copy(0, 0, xtile_width, xtile_width, 0, xtile_height, - dst, src, src_pitch, swizzle_bit, memcpy); - else if (mem_copy == rgba8_copy) - return xtile_copy(0, 0, xtile_width, xtile_width, 0, xtile_height, - dst, src, src_pitch, swizzle_bit, rgba8_copy); - } else { - if (mem_copy == memcpy) - return xtile_copy(x0, x1, x2, x3, y0, y1, - dst, src, src_pitch, swizzle_bit, memcpy); - else if (mem_copy == rgba8_copy) - return xtile_copy(x0, x1, x2, x3, y0, y1, - dst, src, src_pitch, swizzle_bit, rgba8_copy); - } - xtile_copy(x0, x1, x2, x3, y0, y1, - dst, src, src_pitch, swizzle_bit, mem_copy); -} - -/** - * Copy texture data from linear to Y tile layout, faster. - * - * Same as \ref ytile_copy but faster, because it passes constant parameters - * for common cases, allowing the compiler to inline code optimized for those - * cases. - * - * \copydoc tile_copy_fn - */ -static FLATTEN void -ytile_copy_faster(uint32_t x0, uint32_t x1, uint32_t x2, uint32_t x3, - uint32_t y0, uint32_t y1, - char *dst, const char *src, - uint32_t src_pitch, - uint32_t swizzle_bit, - mem_copy_fn mem_copy) -{ - if (x0 == 0 && x3 == ytile_width && y0 == 0 && y1 == ytile_height) { - if (mem_copy == memcpy) - return ytile_copy(0, 0, ytile_width, ytile_width, 0, ytile_height, - dst, src, src_pitch, swizzle_bit, memcpy); - else if (mem_copy == rgba8_copy) - return ytile_copy(0, 0, ytile_width, ytile_width, 0, ytile_height, - dst, src, src_pitch, swizzle_bit, rgba8_copy); - } else { - if (mem_copy == memcpy) - return ytile_copy(x0, x1, x2, x3, y0, y1, - dst, src, src_pitch, swizzle_bit, memcpy); - else if (mem_copy == rgba8_copy) - return ytile_copy(x0, x1, x2, x3, y0, y1, - dst, src, src_pitch, swizzle_bit, rgba8_copy); - } - ytile_copy(x0, x1, x2, x3, y0, y1, - dst, src, src_pitch, swizzle_bit, mem_copy); -} - -/** - * Copy from linear to tiled texture. - * - * Divide the region given by X range [xt1, xt2) and Y range [yt1, yt2) into - * pieces that do not cross tile boundaries and copy each piece with a tile - * copy function (\ref tile_copy_fn). - * The X range is in bytes, i.e. pixels * bytes-per-pixel. - * The Y range is in pixels (i.e. unitless). - * 'dst' is the start of the texture and 'src' is the corresponding - * address to copy from, though copying begins at (xt1, yt1). - */ -static void -linear_to_tiled(uint32_t xt1, uint32_t xt2, - uint32_t yt1, uint32_t yt2, - char *dst, const char *src, - uint32_t dst_pitch, uint32_t src_pitch, - bool has_swizzling, - uint32_t tiling, - mem_copy_fn mem_copy) -{ - tile_copy_fn tile_copy; - uint32_t xt0, xt3; - uint32_t yt0, yt3; - uint32_t xt, yt; - uint32_t tw, th, span; - uint32_t swizzle_bit = has_swizzling ? 1<<6 : 0; - - if (tiling == I915_TILING_X) { - tw = xtile_width; - th = xtile_height; - span = xtile_span; - tile_copy = xtile_copy_faster; - } else if (tiling == I915_TILING_Y) { - tw = ytile_width; - th = ytile_height; - span = ytile_span; - tile_copy = ytile_copy_faster; - } else { - unreachable("unsupported tiling"); - } - - /* Round out to tile boundaries. */ - xt0 = ALIGN_DOWN(xt1, tw); - xt3 = ALIGN_UP (xt2, tw); - yt0 = ALIGN_DOWN(yt1, th); - yt3 = ALIGN_UP (yt2, th); - - /* Loop over all tiles to which we have something to copy. - * 'xt' and 'yt' are the origin of the destination tile, whether copying - * copying a full or partial tile. - * tile_copy() copies one tile or partial tile. - * Looping x inside y is the faster memory access pattern. - */ - for (yt = yt0; yt < yt3; yt += th) { - for (xt = xt0; xt < xt3; xt += tw) { - /* The area to update is [x0,x3) x [y0,y1). - * May not want the whole tile, hence the min and max. - */ - uint32_t x0 = MAX2(xt1, xt); - uint32_t y0 = MAX2(yt1, yt); - uint32_t x3 = MIN2(xt2, xt + tw); - uint32_t y1 = MIN2(yt2, yt + th); - - /* [x0,x3) is split into [x0,x1), [x1,x2), [x2,x3) such that - * the middle interval is the longest span-aligned part. - * The sub-ranges could be empty. - */ - uint32_t x1, x2; - x1 = ALIGN_UP(x0, span); - if (x1 > x3) - x1 = x2 = x3; - else - x2 = ALIGN_DOWN(x3, span); - - assert(x0 <= x1 && x1 <= x2 && x2 <= x3); - assert(x1 - x0 < span && x3 - x2 < span); - assert(x3 - x0 <= tw); - assert((x2 - x1) % span == 0); - - /* Translate by (xt,yt) for single-tile copier. */ - tile_copy(x0-xt, x1-xt, x2-xt, x3-xt, - y0-yt, y1-yt, - dst + (ptrdiff_t) xt * th + (ptrdiff_t) yt * dst_pitch, - src + (ptrdiff_t) xt + (ptrdiff_t) yt * src_pitch, - src_pitch, - swizzle_bit, - mem_copy); - } - } -} - /** * \brief A fast path for glTexImage and glTexSubImage. * @@ -480,35 +118,7 @@ intel_texsubimage_tiled_memcpy(struct gl_context * ctx, packing->Invert) return false; - if (type == GL_UNSIGNED_INT_8_8_8_8_REV && - !(format == GL_RGBA || format == GL_BGRA)) - return false; /* Invalid type/format combination */ - - if ((texImage->TexFormat == MESA_FORMAT_L_UNORM8 && format == GL_LUMINANCE) || - (texImage->TexFormat == MESA_FORMAT_A_UNORM8 && format == GL_ALPHA)) { - cpp = 1; - mem_copy = memcpy; - } else if ((texImage->TexFormat == MESA_FORMAT_B8G8R8A8_UNORM) || - (texImage->TexFormat == MESA_FORMAT_B8G8R8X8_UNORM)) { - cpp = 4; - if (format == GL_BGRA) { - mem_copy = memcpy; - } else if (format == GL_RGBA) { - mem_copy = rgba8_copy; - } - } else if ((texImage->TexFormat == MESA_FORMAT_R8G8B8A8_UNORM) || - (texImage->TexFormat == MESA_FORMAT_R8G8B8X8_UNORM)) { - cpp = 4; - if (format == GL_BGRA) { - /* Copying from RGBA to BGRA is the same as BGRA to RGBA so we can - * use the same function. - */ - mem_copy = rgba8_copy; - } else if (format == GL_RGBA) { - mem_copy = memcpy; - } - } - if (!mem_copy) + if (!intel_get_memcpy(texImage->TexFormat, format, type, &mem_copy, &cpp)) return false; /* If this is a nontrivial texture view, let another path handle it instead. */ diff --git a/src/mesa/drivers/dri/i965/intel_tiled_memcpy.c b/src/mesa/drivers/dri/i965/intel_tiled_memcpy.c new file mode 100644 index 00000000000..a7692a3b0eb --- /dev/null +++ b/src/mesa/drivers/dri/i965/intel_tiled_memcpy.c @@ -0,0 +1,450 @@ +/* + * Mesa 3-D graphics library + * + * Copyright 2012 Intel Corporation + * Copyright 2013 Google + * + * 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. + * + * Authors: + * Chad Versace <[email protected]> + * Frank Henigman <[email protected]> + */ + +#include <string.h> + +#include "util/macros.h" + +#include "brw_context.h" +#include "intel_tiled_memcpy.h" + +#ifdef __SSSE3__ +#include <tmmintrin.h> +#endif + +#define FILE_DEBUG_FLAG DEBUG_TEXTURE + +#define ALIGN_DOWN(a, b) ROUND_DOWN_TO(a, b) +#define ALIGN_UP(a, b) ALIGN(a, b) + +/* Tile dimensions. Width and span are in bytes, height is in pixels (i.e. + * unitless). A "span" is the most number of bytes we can copy from linear + * to tiled without needing to calculate a new destination address. + */ +static const uint32_t xtile_width = 512; +static const uint32_t xtile_height = 8; +static const uint32_t xtile_span = 64; +static const uint32_t ytile_width = 128; +static const uint32_t ytile_height = 32; +static const uint32_t ytile_span = 16; + +#ifdef __SSSE3__ +static const uint8_t rgba8_permutation[16] = + { 2,1,0,3, 6,5,4,7, 10,9,8,11, 14,13,12,15 }; + +/* NOTE: dst must be 16 byte aligned */ +#define rgba8_copy_16(dst, src) \ + *(__m128i *)(dst) = _mm_shuffle_epi8( \ + (__m128i) _mm_loadu_ps((float *)(src)), \ + *(__m128i *) rgba8_permutation \ + ) +#endif + +/** + * Copy RGBA to BGRA - swap R and B. + */ +static inline void * +rgba8_copy(void *dst, const void *src, size_t bytes) +{ + uint8_t *d = dst; + uint8_t const *s = src; + +#ifdef __SSSE3__ + /* Fast copying for tile spans. + * + * As long as the destination texture is 16 aligned, + * any 16 or 64 spans we get here should also be 16 aligned. + */ + + if (bytes == 16) { + assert(!(((uintptr_t)dst) & 0xf)); + rgba8_copy_16(d+ 0, s+ 0); + return dst; + } + + if (bytes == 64) { + assert(!(((uintptr_t)dst) & 0xf)); + rgba8_copy_16(d+ 0, s+ 0); + rgba8_copy_16(d+16, s+16); + rgba8_copy_16(d+32, s+32); + rgba8_copy_16(d+48, s+48); + return dst; + } +#endif + + while (bytes >= 4) { + d[0] = s[2]; + d[1] = s[1]; + d[2] = s[0]; + d[3] = s[3]; + d += 4; + s += 4; + bytes -= 4; + } + return dst; +} + +/** + * Each row from y0 to y1 is copied in three parts: [x0,x1), [x1,x2), [x2,x3). + * These ranges are in bytes, i.e. pixels * bytes-per-pixel. + * The first and last ranges must be shorter than a "span" (the longest linear + * stretch within a tile) and the middle must equal a whole number of spans. + * Ranges may be empty. The region copied must land entirely within one tile. + * 'dst' is the start of the tile and 'src' is the corresponding + * address to copy from, though copying begins at (x0, y0). + * To enable swizzling 'swizzle_bit' must be 1<<6, otherwise zero. + * Swizzling flips bit 6 in the copy destination offset, when certain other + * bits are set in it. + */ +typedef void (*tile_copy_fn)(uint32_t x0, uint32_t x1, uint32_t x2, uint32_t x3, + uint32_t y0, uint32_t y1, + char *dst, const char *src, + uint32_t src_pitch, + uint32_t swizzle_bit, + mem_copy_fn mem_copy); + +/** + * Copy texture data from linear to X tile layout. + * + * \copydoc tile_copy_fn + */ +static inline void +linear_to_xtiled(uint32_t x0, uint32_t x1, uint32_t x2, uint32_t x3, + uint32_t y0, uint32_t y1, + char *dst, const char *src, + uint32_t src_pitch, + uint32_t swizzle_bit, + mem_copy_fn mem_copy) +{ + /* The copy destination offset for each range copied is the sum of + * an X offset 'x0' or 'xo' and a Y offset 'yo.' + */ + uint32_t xo, yo; + + src += y0 * src_pitch; + + for (yo = y0 * xtile_width; yo < y1 * xtile_width; yo += xtile_width) { + /* Bits 9 and 10 of the copy destination offset control swizzling. + * Only 'yo' contributes to those bits in the total offset, + * so calculate 'swizzle' just once per row. + * Move bits 9 and 10 three and four places respectively down + * to bit 6 and xor them. + */ + uint32_t swizzle = ((yo >> 3) ^ (yo >> 4)) & swizzle_bit; + + mem_copy(dst + ((x0 + yo) ^ swizzle), src + x0, x1 - x0); + + for (xo = x1; xo < x2; xo += xtile_span) { + mem_copy(dst + ((xo + yo) ^ swizzle), src + xo, xtile_span); + } + + mem_copy(dst + ((xo + yo) ^ swizzle), src + x2, x3 - x2); + + src += src_pitch; + } +} + +/** + * Copy texture data from linear to Y tile layout. + * + * \copydoc tile_copy_fn + */ +static inline void +linear_to_ytiled(uint32_t x0, uint32_t x1, uint32_t x2, uint32_t x3, + uint32_t y0, uint32_t y1, + char *dst, const char *src, + uint32_t src_pitch, + uint32_t swizzle_bit, + mem_copy_fn mem_copy) +{ + /* Y tiles consist of columns that are 'ytile_span' wide (and the same height + * as the tile). Thus the destination offset for (x,y) is the sum of: + * (x % column_width) // position within column + * (x / column_width) * bytes_per_column // column number * bytes per column + * y * column_width + * + * The copy destination offset for each range copied is the sum of + * an X offset 'xo0' or 'xo' and a Y offset 'yo.' + */ + const uint32_t column_width = ytile_span; + const uint32_t bytes_per_column = column_width * ytile_height; + + uint32_t xo0 = (x0 % ytile_span) + (x0 / ytile_span) * bytes_per_column; + uint32_t xo1 = (x1 % ytile_span) + (x1 / ytile_span) * bytes_per_column; + + /* Bit 9 of the destination offset control swizzling. + * Only the X offset contributes to bit 9 of the total offset, + * so swizzle can be calculated in advance for these X positions. + * Move bit 9 three places down to bit 6. + */ + uint32_t swizzle0 = (xo0 >> 3) & swizzle_bit; + uint32_t swizzle1 = (xo1 >> 3) & swizzle_bit; + + uint32_t x, yo; + + src += y0 * src_pitch; + + for (yo = y0 * column_width; yo < y1 * column_width; yo += column_width) { + uint32_t xo = xo1; + uint32_t swizzle = swizzle1; + + mem_copy(dst + ((xo0 + yo) ^ swizzle0), src + x0, x1 - x0); + + /* Step by spans/columns. As it happens, the swizzle bit flips + * at each step so we don't need to calculate it explicitly. + */ + for (x = x1; x < x2; x += ytile_span) { + mem_copy(dst + ((xo + yo) ^ swizzle), src + x, ytile_span); + xo += bytes_per_column; + swizzle ^= swizzle_bit; + } + + mem_copy(dst + ((xo + yo) ^ swizzle), src + x2, x3 - x2); + + src += src_pitch; + } +} + +/** + * Copy texture data from linear to X tile layout, faster. + * + * Same as \ref linear_to_xtiled but faster, because it passes constant + * parameters for common cases, allowing the compiler to inline code + * optimized for those cases. + * + * \copydoc tile_copy_fn + */ +static FLATTEN void +linear_to_xtiled_faster(uint32_t x0, uint32_t x1, uint32_t x2, uint32_t x3, + uint32_t y0, uint32_t y1, + char *dst, const char *src, + uint32_t src_pitch, + uint32_t swizzle_bit, + mem_copy_fn mem_copy) +{ + if (x0 == 0 && x3 == xtile_width && y0 == 0 && y1 == xtile_height) { + if (mem_copy == memcpy) + return linear_to_xtiled(0, 0, xtile_width, xtile_width, 0, xtile_height, + dst, src, src_pitch, swizzle_bit, memcpy); + else if (mem_copy == rgba8_copy) + return linear_to_xtiled(0, 0, xtile_width, xtile_width, 0, xtile_height, + dst, src, src_pitch, swizzle_bit, rgba8_copy); + } else { + if (mem_copy == memcpy) + return linear_to_xtiled(x0, x1, x2, x3, y0, y1, + dst, src, src_pitch, swizzle_bit, memcpy); + else if (mem_copy == rgba8_copy) + return linear_to_xtiled(x0, x1, x2, x3, y0, y1, + dst, src, src_pitch, swizzle_bit, rgba8_copy); + } + linear_to_xtiled(x0, x1, x2, x3, y0, y1, + dst, src, src_pitch, swizzle_bit, mem_copy); +} + +/** + * Copy texture data from linear to Y tile layout, faster. + * + * Same as \ref linear_to_ytiled but faster, because it passes constant + * parameters for common cases, allowing the compiler to inline code + * optimized for those cases. + * + * \copydoc tile_copy_fn + */ +static FLATTEN void +linear_to_ytiled_faster(uint32_t x0, uint32_t x1, uint32_t x2, uint32_t x3, + uint32_t y0, uint32_t y1, + char *dst, const char *src, + uint32_t src_pitch, + uint32_t swizzle_bit, + mem_copy_fn mem_copy) +{ + if (x0 == 0 && x3 == ytile_width && y0 == 0 && y1 == ytile_height) { + if (mem_copy == memcpy) + return linear_to_ytiled(0, 0, ytile_width, ytile_width, 0, ytile_height, + dst, src, src_pitch, swizzle_bit, memcpy); + else if (mem_copy == rgba8_copy) + return linear_to_ytiled(0, 0, ytile_width, ytile_width, 0, ytile_height, + dst, src, src_pitch, swizzle_bit, rgba8_copy); + } else { + if (mem_copy == memcpy) + return linear_to_ytiled(x0, x1, x2, x3, y0, y1, + dst, src, src_pitch, swizzle_bit, memcpy); + else if (mem_copy == rgba8_copy) + return linear_to_ytiled(x0, x1, x2, x3, y0, y1, + dst, src, src_pitch, swizzle_bit, rgba8_copy); + } + linear_to_ytiled(x0, x1, x2, x3, y0, y1, + dst, src, src_pitch, swizzle_bit, mem_copy); +} + + +/** + * Copy from linear to tiled texture. + * + * Divide the region given by X range [xt1, xt2) and Y range [yt1, yt2) into + * pieces that do not cross tile boundaries and copy each piece with a tile + * copy function (\ref tile_copy_fn). + * The X range is in bytes, i.e. pixels * bytes-per-pixel. + * The Y range is in pixels (i.e. unitless). + * 'dst' is the start of the texture and 'src' is the corresponding + * address to copy from, though copying begins at (xt1, yt1). + */ +void +linear_to_tiled(uint32_t xt1, uint32_t xt2, + uint32_t yt1, uint32_t yt2, + char *dst, const char *src, + uint32_t dst_pitch, uint32_t src_pitch, + bool has_swizzling, + uint32_t tiling, + mem_copy_fn mem_copy) +{ + tile_copy_fn tile_copy; + uint32_t xt0, xt3; + uint32_t yt0, yt3; + uint32_t xt, yt; + uint32_t tw, th, span; + uint32_t swizzle_bit = has_swizzling ? 1<<6 : 0; + + if (tiling == I915_TILING_X) { + tw = xtile_width; + th = xtile_height; + span = xtile_span; + tile_copy = linear_to_xtiled_faster; + } else if (tiling == I915_TILING_Y) { + tw = ytile_width; + th = ytile_height; + span = ytile_span; + tile_copy = linear_to_ytiled_faster; + } else { + unreachable("unsupported tiling"); + } + + /* Round out to tile boundaries. */ + xt0 = ALIGN_DOWN(xt1, tw); + xt3 = ALIGN_UP (xt2, tw); + yt0 = ALIGN_DOWN(yt1, th); + yt3 = ALIGN_UP (yt2, th); + + /* Loop over all tiles to which we have something to copy. + * 'xt' and 'yt' are the origin of the destination tile, whether copying + * copying a full or partial tile. + * tile_copy() copies one tile or partial tile. + * Looping x inside y is the faster memory access pattern. + */ + for (yt = yt0; yt < yt3; yt += th) { + for (xt = xt0; xt < xt3; xt += tw) { + /* The area to update is [x0,x3) x [y0,y1). + * May not want the whole tile, hence the min and max. + */ + uint32_t x0 = MAX2(xt1, xt); + uint32_t y0 = MAX2(yt1, yt); + uint32_t x3 = MIN2(xt2, xt + tw); + uint32_t y1 = MIN2(yt2, yt + th); + + /* [x0,x3) is split into [x0,x1), [x1,x2), [x2,x3) such that + * the middle interval is the longest span-aligned part. + * The sub-ranges could be empty. + */ + uint32_t x1, x2; + x1 = ALIGN_UP(x0, span); + if (x1 > x3) + x1 = x2 = x3; + else + x2 = ALIGN_DOWN(x3, span); + + assert(x0 <= x1 && x1 <= x2 && x2 <= x3); + assert(x1 - x0 < span && x3 - x2 < span); + assert(x3 - x0 <= tw); + assert((x2 - x1) % span == 0); + + /* Translate by (xt,yt) for single-tile copier. */ + tile_copy(x0-xt, x1-xt, x2-xt, x3-xt, + y0-yt, y1-yt, + dst + (ptrdiff_t) xt * th + (ptrdiff_t) yt * dst_pitch, + src + (ptrdiff_t) xt + (ptrdiff_t) yt * src_pitch, + src_pitch, + swizzle_bit, + mem_copy); + } + } +} + + +/** + * Determine which copy function to use for the given format combination + * + * \param[in] tiledFormat The format of the tiled image + * \param[in] format The GL format of the client data + * \param[in] type The GL type of the client data + * \param[out] mem_copy Will be set to one of either the standard + * library's memcpy or a different copy function + * that performs an RGBA to BGRA conversion + * \param[out] cpp Number of bytes per channel + * + * \return true if the format and type combination are valid + */ +bool intel_get_memcpy(mesa_format tiledFormat, GLenum format, + GLenum type, mem_copy_fn* mem_copy, uint32_t* cpp) +{ + if (type == GL_UNSIGNED_INT_8_8_8_8_REV && + !(format == GL_RGBA || format == GL_BGRA)) + return false; /* Invalid type/format combination */ + + if ((tiledFormat == MESA_FORMAT_L_UNORM8 && format == GL_LUMINANCE) || + (tiledFormat == MESA_FORMAT_A_UNORM8 && format == GL_ALPHA)) { + *cpp = 1; + *mem_copy = memcpy; + } else if ((tiledFormat == MESA_FORMAT_B8G8R8A8_UNORM) || + (tiledFormat == MESA_FORMAT_B8G8R8X8_UNORM)) { + *cpp = 4; + if (format == GL_BGRA) { + *mem_copy = memcpy; + } else if (format == GL_RGBA) { + *mem_copy = rgba8_copy; + } + } else if ((tiledFormat == MESA_FORMAT_R8G8B8A8_UNORM) || + (tiledFormat == MESA_FORMAT_R8G8B8X8_UNORM)) { + *cpp = 4; + if (format == GL_BGRA) { + /* Copying from RGBA to BGRA is the same as BGRA to RGBA so we can + * use the same function. + */ + *mem_copy = rgba8_copy; + } else if (format == GL_RGBA) { + *mem_copy = memcpy; + } + } + + if (!(*mem_copy)) + return false; + + return true; +} diff --git a/src/mesa/drivers/dri/i965/intel_tiled_memcpy.h b/src/mesa/drivers/dri/i965/intel_tiled_memcpy.h new file mode 100644 index 00000000000..ed7dabb792e --- /dev/null +++ b/src/mesa/drivers/dri/i965/intel_tiled_memcpy.h @@ -0,0 +1,52 @@ +/* + * Mesa 3-D graphics library + * + * Copyright 2012 Intel Corporation + * Copyright 2013 Google + * + * 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. + * + * Authors: + * Chad Versace <[email protected]> + * Frank Henigman <[email protected]> + */ + +#ifndef INTEL_TILED_MEMCPY_H +#define INTEL_TILED_MEMCPY_H + +#include <stdint.h> +#include "main/mtypes.h" + +typedef void *(*mem_copy_fn)(void *dest, const void *src, size_t n); + +void +linear_to_tiled(uint32_t xt1, uint32_t xt2, + uint32_t yt1, uint32_t yt2, + char *dst, const char *src, + uint32_t dst_pitch, uint32_t src_pitch, + bool has_swizzling, + uint32_t tiling, + mem_copy_fn mem_copy); + +bool intel_get_memcpy(mesa_format tiledFormat, GLenum format, + GLenum type, mem_copy_fn* mem_copy, uint32_t* cpp); + +#endif /* INTEL_TILED_MEMCPY */ |