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authorMaciej Cencora <m.cencora@gmail.com>2010-02-06 13:46:17 +0100
committerMaciej Cencora <m.cencora@gmail.com>2010-03-07 12:07:45 +0100
commit5fefca5dbae9a5b00a3d624da0b5e582c00ad280 (patch)
treedfad3ea7de82c79082bf039d9d22985e29aab695
parent65faa27aa639e7352708a30105db3318f22f5f93 (diff)
radeon: add software untiling functions
-rw-r--r--src/mesa/drivers/dri/radeon/radeon_tile.c221
-rw-r--r--src/mesa/drivers/dri/radeon/radeon_tile.h4
2 files changed, 225 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_tile.c b/src/mesa/drivers/dri/radeon/radeon_tile.c
index b998baf0a2f..1e4729a0b5d 100644
--- a/src/mesa/drivers/dri/radeon/radeon_tile.c
+++ b/src/mesa/drivers/dri/radeon/radeon_tile.c
@@ -245,6 +245,227 @@ void tile_image(const void * src, unsigned src_pitch,
}
}
+static void micro_untile_8_x_4_8bit(const void * const src, unsigned src_pitch,
+ void * const dst, unsigned dst_pitch,
+ unsigned width, unsigned height)
+{
+ unsigned row; /* current destination row */
+ unsigned col; /* current destination column */
+ unsigned k; /* current tile number */
+ const unsigned tile_width = 8, tile_height = 4;
+ const unsigned tiles_in_row = (width + (tile_width - 1)) / tile_width;
+
+ assert(src_pitch % tile_width == 0);
+
+ 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 + row * src_pitch +
+ (k % tiles_in_row) * MICRO_TILE_SIZE / sizeof(uint8_t);
+ uint8_t *dst2 = (uint8_t *)dst + dst_pitch * row + col;
+ 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 += dst_pitch;
+ src2 += tile_width;
+ }
+ }
+ }
+}
+
+static void micro_untile_8_x_2_16bit(const void * const src, unsigned src_pitch,
+ void * const dst, unsigned dst_pitch,
+ unsigned width, unsigned height)
+{
+ unsigned row; /* current destination row */
+ unsigned col; /* current destination column */
+ unsigned k; /* current tile number */
+ const unsigned tile_width = 8, tile_height = 2;
+ const unsigned tiles_in_row = (width + (tile_width - 1)) / tile_width;
+
+ assert(src_pitch % tile_width == 0);
+
+ 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 + row * src_pitch +
+ (k % tiles_in_row) * MICRO_TILE_SIZE / sizeof(uint16_t);
+ uint16_t *dst2 = (uint16_t *)dst + dst_pitch * row + col;
+ 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 += dst_pitch;
+ src2 += tile_width;
+ }
+ }
+ }
+}
+
+static void micro_untile_4_x_4_16bit(const void * const src, unsigned src_pitch,
+ void * const dst, unsigned dst_pitch,
+ unsigned width, unsigned height)
+{
+ unsigned row; /* current destination row */
+ unsigned col; /* current destination column */
+ unsigned k; /* current tile number */
+ const unsigned tile_width = 4, tile_height = 4;
+ const unsigned tiles_in_row = (width + (tile_width - 1)) / tile_width;
+
+ assert(src_pitch % tile_width == 0);
+
+ 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 + row * src_pitch +
+ (k % tiles_in_row) * MICRO_TILE_SIZE / sizeof(uint16_t);
+ uint16_t *dst2 = (uint16_t *)dst + dst_pitch * row + col;
+ 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 += dst_pitch;
+ src2 += tile_width;
+ }
+ }
+ }
+}
+
+static void micro_untile_4_x_2_32bit(const void * const src, unsigned src_pitch,
+ void * const dst, unsigned dst_pitch,
+ unsigned width, unsigned height)
+{
+ unsigned row; /* current destination row */
+ unsigned col; /* current destination column */
+ unsigned k; /* current tile number */
+ const unsigned tile_width = 4, tile_height = 2;
+ const unsigned tiles_in_row = (width + (tile_width - 1)) / tile_width;
+
+ assert(src_pitch % tile_width == 0);
+
+ 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 + row * src_pitch +
+ (k % tiles_in_row) * MICRO_TILE_SIZE / sizeof(uint32_t);
+ uint32_t *dst2 = (uint32_t *)dst + dst_pitch * row + col;
+ 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 += dst_pitch;
+ src2 += tile_width;
+ }
+ }
+ }
+}
+
+static void micro_untile_2_x_2_64bit(const void * const src, unsigned src_pitch,
+ void * const dst, unsigned dst_pitch,
+ unsigned width, unsigned height)
+{
+ unsigned row; /* current destination row */
+ unsigned col; /* current destination column */
+ unsigned k; /* current tile number */
+ const unsigned tile_width = 2, tile_height = 2;
+ const unsigned tiles_in_row = (width + (tile_width - 1)) / tile_width;
+
+ assert(src_pitch % tile_width == 0);
+
+ 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 + row * src_pitch +
+ (k % tiles_in_row) * MICRO_TILE_SIZE / sizeof(uint64_t);
+ uint64_t *dst2 = (uint64_t *)dst + dst_pitch * row + col;
+ 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 += dst_pitch;
+ src2 += tile_width;
+ }
+ }
+ }
+}
+
+static void micro_untile_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 untile_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(src_pitch * _mesa_get_format_bytes(format) % MICRO_TILE_SIZE == 0);
+
+ switch (_mesa_get_format_bytes(format))
+ {
+ case 16:
+ micro_untile_1_x_1_128bit(src, src_pitch, dst, dst_pitch, width, height);
+ break;
+ case 8:
+ micro_untile_2_x_2_64bit(src, src_pitch, dst, dst_pitch, width, height);
+ break;
+ case 4:
+ micro_untile_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_untile_4_x_4_16bit(src, src_pitch, dst, dst_pitch, width, height);
+ }
+ else
+ {
+ micro_untile_8_x_2_16bit(src, src_pitch, dst, dst_pitch, width, height);
+ }
+ break;
+ case 1:
+ micro_untile_8_x_4_8bit(src, src_pitch, dst, dst_pitch, width, height);
+ break;
+ default:
+ assert(0);
+ break;
+ }
+}
+
void get_tile_size(gl_format format, unsigned *block_width, unsigned *block_height)
{
switch (_mesa_get_format_bytes(format))
diff --git a/src/mesa/drivers/dri/radeon/radeon_tile.h b/src/mesa/drivers/dri/radeon/radeon_tile.h
index 06850b361d6..31d9c5611c3 100644
--- a/src/mesa/drivers/dri/radeon/radeon_tile.h
+++ b/src/mesa/drivers/dri/radeon/radeon_tile.h
@@ -31,4 +31,8 @@ void tile_image(const void * src, unsigned src_pitch,
void *dst, unsigned dst_pitch,
gl_format format, unsigned width, unsigned height);
+void untile_image(const void * src, unsigned src_pitch,
+ void *dst, unsigned dst_pitch,
+ gl_format format, unsigned width, unsigned height);
+
void get_tile_size(gl_format format, unsigned *block_width, unsigned *block_height);