radeon: added tiling functions

1 files changed, 246 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/radeon/radeon_tile.c b/src/mesa/drivers/dri/radeon/radeon_tile.c
new file mode 100644
index 00000000000..56f2fc46d9c
--- /dev/null
+++ b/src/mesa/drivers/dri/radeon/radeon_tile.c
@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) 2010 Maciej Cencora <[email protected]>
+ *
+ * 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, sublicense, 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 NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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.
+ *
+ */
+
+#include "radeon_tile.h"
+
+#include <stdint.h>
+#include <string.h>
+
+#include <main/macros.h>
+
+#define MICRO_TILE_SIZE 32
+
+static void micro_tile_8_x_4_8bit(const void * const src, unsigned src_pitch,
+                                  void * const dst, unsigned dst_pitch,
+                                  unsigned width, unsigned height)
+{
+    unsigned row; /* current source row */
+    unsigned col; /* current source column */
+    unsigned k; /* number of processed tiles */
+    const unsigned tile_width = 8, tile_height = 4;
+    const unsigned tiles_in_row = (width + (tile_width - 1)) / tile_width;
+
+    k = 0;
+    for (row = 0; row < height; row += tile_height)
+    {
+        for (col = 0; col < width; col += tile_width, ++k)
+        {
+            uint8_t *src2 = (uint8_t *)src + src_pitch * row + col;
+            uint8_t *dst2 = (uint8_t *)dst + row * dst_pitch +
+                             (k % tiles_in_row) * MICRO_TILE_SIZE / sizeof(uint8_t);
+            unsigned j;
+
+            for (j = 0; j < MIN2(tile_height, height - row); ++j)
+            {
+                unsigned columns = MIN2(tile_width, width - col);
+                memcpy(dst2, src2, columns * sizeof(uint8_t));
+                dst2 += tile_width;
+                src2 += src_pitch;
+            }
+        }
+    }
+}
+
+static void micro_tile_4_x_4_16bit(const void * const src, unsigned src_pitch,
+                                   void * const dst, unsigned dst_pitch,
+                                   unsigned width, unsigned height)
+{
+    unsigned row; /* current source row */
+    unsigned col; /* current source column */
+    unsigned k; /* number of processed tiles */
+    const unsigned tile_width = 4, tile_height = 4;
+    const unsigned tiles_in_row = (width + (tile_width - 1)) / tile_width;
+
+    k = 0;
+    for (row = 0; row < height; row += tile_height)
+    {
+        for (col = 0; col < width; col += tile_width, ++k)
+        {
+            uint16_t *src2 = (uint16_t *)src + src_pitch * row + col;
+            uint16_t *dst2 = (uint16_t *)dst + row * dst_pitch +
+                             (k % tiles_in_row) * MICRO_TILE_SIZE / sizeof(uint16_t);
+            unsigned j;
+
+            for (j = 0; j < MIN2(tile_height, height - row); ++j)
+            {
+                unsigned columns = MIN2(tile_width, width - col);
+                memcpy(dst2, src2, columns * sizeof(uint16_t));
+                dst2 += tile_width;
+                src2 += src_pitch;
+            }
+        }
+    }
+}
+
+static void micro_tile_8_x_2_16bit(const void * const src, unsigned src_pitch,
+                                   void * const dst, unsigned dst_pitch,
+                                   unsigned width, unsigned height)
+{
+    unsigned row; /* current source row */
+    unsigned col; /* current source column */
+    unsigned k; /* number of processed tiles */
+    const unsigned tile_width = 8, tile_height = 2;
+    const unsigned tiles_in_row = (width + (tile_width - 1)) / tile_width;
+
+    k = 0;
+    for (row = 0; row < height; row += tile_height)
+    {
+        for (col = 0; col < width; col += tile_width, ++k)
+        {
+            uint16_t *src2 = (uint16_t *)src + src_pitch * row + col;
+            uint16_t *dst2 = (uint16_t *)dst + row * dst_pitch +
+                             (k % tiles_in_row) * MICRO_TILE_SIZE / sizeof(uint16_t);
+            unsigned j;
+
+            for (j = 0; j < MIN2(tile_height, height - row); ++j)
+            {
+                unsigned columns = MIN2(tile_width, width - col);
+                memcpy(dst2, src2, columns * sizeof(uint16_t));
+                dst2 += tile_width;
+                src2 += src_pitch;
+            }
+        }
+    }
+}
+
+static void micro_tile_4_x_2_32bit(const void * const src, unsigned src_pitch,
+                                   void * const dst, unsigned dst_pitch,
+                                   unsigned width, unsigned height)
+{
+    unsigned row; /* current source row */
+    unsigned col; /* current source column */
+    unsigned k; /* number of processed tiles */
+    const unsigned tile_width = 4, tile_height = 2;
+    const unsigned tiles_in_row = (width + (tile_width - 1)) / tile_width;
+
+    k = 0;
+    for (row = 0; row < height; row += tile_height)
+    {
+        for (col = 0; col < width; col += tile_width, ++k)
+        {
+            uint32_t *src2 = (uint32_t *)src + src_pitch * row + col;
+            uint32_t *dst2 = (uint32_t *)dst + row * dst_pitch +
+                             (k % tiles_in_row) * MICRO_TILE_SIZE / sizeof(uint32_t);
+            unsigned j;
+
+            for (j = 0; j < MIN2(tile_height, height - row); ++j)
+            {
+                unsigned columns = MIN2(tile_width, width - col);
+                memcpy(dst2, src2, columns * sizeof(uint32_t));
+                dst2 += tile_width;
+                src2 += src_pitch;
+            }
+        }
+    }
+}
+
+static void micro_tile_2_x_2_64bit(const void * const src, unsigned src_pitch,
+                                   void * const dst, unsigned dst_pitch,
+                                   unsigned width, unsigned height)
+{
+    unsigned row; /* current source row */
+    unsigned col; /* current source column */
+    unsigned k; /* number of processed tiles */
+    const unsigned tile_width = 2, tile_height = 2;
+    const unsigned tiles_in_row = (width + (tile_width - 1)) / tile_width;
+
+    k = 0;
+    for (row = 0; row < height; row += tile_height)
+    {
+        for (col = 0; col < width; col += tile_width, ++k)
+        {
+            uint64_t *src2 = (uint64_t *)src + src_pitch * row + col;
+            uint64_t *dst2 = (uint64_t *)dst + row * dst_pitch +
+                             (k % tiles_in_row) * MICRO_TILE_SIZE / sizeof(uint64_t);
+            unsigned j;
+
+            for (j = 0; j < MIN2(tile_height, height - row); ++j)
+            {
+                unsigned columns = MIN2(tile_width, width - col);
+                memcpy(dst2, src2, columns * sizeof(uint64_t));
+                dst2 += tile_width;
+                src2 += src_pitch;
+            }
+        }
+    }
+}
+
+static void micro_tile_1_x_1_128bit(const void * src, unsigned src_pitch,
+                                    void * dst, unsigned dst_pitch,
+                                    unsigned width, unsigned height)
+{
+    unsigned i, j;
+    const unsigned elem_size = 16; /* sizeof(uint128_t) */
+
+    for (j = 0; j < height; ++j)
+    {
+        for (i = 0; i < width; ++i)
+        {
+            memcpy(dst, src, width * elem_size);
+            dst += dst_pitch * elem_size;
+            src += src_pitch * elem_size;
+        }
+    }
+}
+
+void tile_image(const void * src, unsigned src_pitch,
+                void *dst, unsigned dst_pitch,
+                gl_format format, unsigned width, unsigned height)
+{
+    assert(src_pitch >= width);
+    assert(dst_pitch >= width);
+    assert(dst_pitch * _mesa_get_format_bytes(format) % MICRO_TILE_SIZE == 0);
+
+    switch (_mesa_get_format_bytes(format))
+    {
+        case 16:
+            micro_tile_1_x_1_128bit(src, src_pitch, dst, dst_pitch, width, height);
+            break;
+        case 8:
+            micro_tile_2_x_2_64bit(src, src_pitch, dst, dst_pitch, width, height);
+            break;
+        case 4:
+            micro_tile_4_x_2_32bit(src, src_pitch, dst, dst_pitch, width, height);
+            break;
+        case 2:
+            if (_mesa_get_format_bits(format, GL_DEPTH_BITS))
+            {
+                micro_tile_4_x_4_16bit(src, src_pitch, dst, dst_pitch, width, height);
+            }
+            else
+            {
+                micro_tile_8_x_2_16bit(src, src_pitch, dst, dst_pitch, width, height);
+            }
+            break;
+        case 1:
+            micro_tile_8_x_4_8bit(src, src_pitch, dst, dst_pitch, width, height);
+            break;
+        default:
+            assert(0);
+            break;
+    }
+}
\ No newline at end of file