diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/r300/r300_texture.c | 56 |
1 files changed, 50 insertions, 6 deletions
diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c index 2784916ddf..a9bbdd56d8 100644 --- a/src/gallium/drivers/r300/r300_texture.c +++ b/src/gallium/drivers/r300/r300_texture.c @@ -30,6 +30,18 @@ #include "r300_texture.h" #include "r300_screen.h" +#define TILE_WIDTH 0 +#define TILE_HEIGHT 1 + +static const unsigned microblock_table[5][3][2] = { + /*linear tiled square-tiled */ + {{32, 1}, {8, 4}, {0, 0}}, /* 8 bits per pixel */ + {{16, 1}, {8, 2}, {4, 4}}, /* 16 bits per pixel */ + {{ 8, 1}, {4, 2}, {0, 0}}, /* 32 bits per pixel */ + {{ 4, 1}, {0, 0}, {2, 2}}, /* 64 bits per pixel */ + {{ 2, 1}, {0, 0}, {0, 0}} /* 128 bits per pixel */ +}; + static void r300_setup_texture_state(struct r300_texture* tex, boolean is_r500) { struct r300_texture_state* state = &tex->state; @@ -92,35 +104,67 @@ unsigned r300_texture_get_offset(struct r300_texture* tex, unsigned level, } /** + * Return the width (dim==TILE_WIDTH) or height (dim==TILE_HEIGHT) of one tile + * of the given texture. + */ +static unsigned r300_texture_get_tile_size(struct r300_texture* tex, int dim) +{ + unsigned pixsize, tile_size; + + pixsize = util_format_get_blocksize(tex->tex.format); + tile_size = microblock_table[util_logbase2(pixsize)][tex->microtile][dim] * + (tex->macrotile == R300_BUFFER_TILED ? 8 : 1); + + assert(tile_size); + return tile_size; +} + +/** * Return the stride, in bytes, of the texture images of the given texture * at the given level. */ unsigned r300_texture_get_stride(struct r300_texture* tex, unsigned level) { + unsigned tile_width, width; + if (tex->stride_override) return tex->stride_override; + /* Check the level. */ if (level > tex->tex.last_level) { debug_printf("%s: level (%u) > last_level (%u)\n", __FUNCTION__, level, tex->tex.last_level); return 0; } - return align(util_format_get_stride(tex->tex.format, u_minify(tex->tex.width0, level)), 32); + tile_width = r300_texture_get_tile_size(tex, TILE_WIDTH); + width = align(u_minify(tex->tex.width0, level), tile_width); + + /* Should already be aligned except for S3TC. */ + return align(util_format_get_stride(tex->tex.format, width), 32); +} + +static unsigned r300_texture_get_nblocksy(struct r300_texture* tex, + unsigned level) +{ + unsigned height, tile_height; + + tile_height = r300_texture_get_tile_size(tex, TILE_HEIGHT); + height = align(u_minify(tex->tex.height0, level), tile_height); + + return util_format_get_nblocksy(tex->tex.format, height); } static void r300_setup_miptree(struct r300_texture* tex) { struct pipe_texture* base = &tex->tex; - int stride, size, layer_size; - int i; + unsigned stride, size, layer_size, nblocksy, i; debug_printf("r300: Making miptree for texture, format %s\n", pf_name(base->format)); for (i = 0; i <= base->last_level; i++) { - unsigned nblocksy = util_format_get_nblocksy(base->format, u_minify(base->height0, i)); - stride = r300_texture_get_stride(tex, i); + nblocksy = r300_texture_get_nblocksy(tex, i); layer_size = stride * nblocksy; if (base->target == PIPE_TEXTURE_CUBE) @@ -165,7 +209,7 @@ static struct pipe_texture* r300_setup_miptree(tex); r300_setup_texture_state(tex, r300_screen(screen)->caps->is_r500); - tex->buffer = screen->buffer_create(screen, 1024, + tex->buffer = screen->buffer_create(screen, 2048, PIPE_BUFFER_USAGE_PIXEL, tex->size); |