From: Brian Paul Date: Mon, 13 Oct 2008 22:43:11 +0000 (-0600) Subject: cell: initial work for mipmap texture filtering X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=978799beb2a9c51550abb1f37bb6f63d06bc4717;p=mesa.git cell: initial work for mipmap texture filtering --- diff --git a/src/gallium/drivers/cell/common.h b/src/gallium/drivers/cell/common.h index 5dc756023fb..e4de9a551d7 100644 --- a/src/gallium/drivers/cell/common.h +++ b/src/gallium/drivers/cell/common.h @@ -67,6 +67,7 @@ #define CELL_MAX_SPUS 6 #define CELL_MAX_SAMPLERS 4 +#define CELL_MAX_TEXTURE_LEVELS 12 /* 2k x 2k */ #define TILE_SIZE 32 @@ -251,8 +252,9 @@ struct cell_command_texture { uint64_t opcode; /**< CELL_CMD_STATE_TEXTURE */ uint unit; - void *start; /**< Address in main memory */ - ushort width, height; + void *start[CELL_MAX_TEXTURE_LEVELS]; /**< Address in main memory */ + ushort width[CELL_MAX_TEXTURE_LEVELS]; + ushort height[CELL_MAX_TEXTURE_LEVELS]; }; diff --git a/src/gallium/drivers/cell/ppu/cell_screen.c b/src/gallium/drivers/cell/ppu/cell_screen.c index 47ba6fa2909..d2235579507 100644 --- a/src/gallium/drivers/cell/ppu/cell_screen.c +++ b/src/gallium/drivers/cell/ppu/cell_screen.c @@ -76,11 +76,11 @@ cell_get_param(struct pipe_screen *screen, int param) case PIPE_CAP_TEXTURE_SHADOW_MAP: return 10; case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: - return 12; /* max 2Kx2K */ + return CELL_MAX_TEXTURE_LEVELS; case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: return 8; /* max 128x128x128 */ case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: - return 12; /* max 2Kx2K */ + return CELL_MAX_TEXTURE_LEVELS; default: return 10; } diff --git a/src/gallium/drivers/cell/ppu/cell_state_emit.c b/src/gallium/drivers/cell/ppu/cell_state_emit.c index cbfa393cfba..7090b4c99f7 100644 --- a/src/gallium/drivers/cell/ppu/cell_state_emit.c +++ b/src/gallium/drivers/cell/ppu/cell_state_emit.c @@ -211,14 +211,20 @@ cell_emit_state(struct cell_context *cell) texture->opcode = CELL_CMD_STATE_TEXTURE; texture->unit = i; if (cell->texture[i]) { - texture->start = cell->texture[i]->tiled_data; - texture->width = cell->texture[i]->base.width[0]; - texture->height = cell->texture[i]->base.height[0]; + uint level; + for (level = 0; level < CELL_MAX_TEXTURE_LEVELS; level++) { + texture->start[level] = cell->texture[i]->tiled_data[level]; + texture->width[level] = cell->texture[i]->base.width[level]; + texture->height[level] = cell->texture[i]->base.height[level]; + } } else { - texture->start = NULL; - texture->width = 1; - texture->height = 1; + uint level; + for (level = 0; level < CELL_MAX_TEXTURE_LEVELS; level++) { + texture->start[level] = NULL; + texture->width[level] = 1; + texture->height[level] = 1; + } } } } diff --git a/src/gallium/drivers/cell/ppu/cell_texture.c b/src/gallium/drivers/cell/ppu/cell_texture.c index b6590dfb86e..f5f81ac3cc4 100644 --- a/src/gallium/drivers/cell/ppu/cell_texture.c +++ b/src/gallium/drivers/cell/ppu/cell_texture.c @@ -66,6 +66,8 @@ cell_texture_layout(struct cell_texture * spt) unsigned size; unsigned w_tile, h_tile; + assert(level < CELL_MAX_TEXTURE_LEVELS); + /* width, height, rounded up to tile size */ w_tile = align(width, TILE_SIZE); h_tile = align(height, TILE_SIZE); @@ -249,33 +251,41 @@ cell_tile_texture(struct cell_context *cell, struct cell_texture *texture) { struct pipe_screen *screen = cell->pipe.screen; - uint face = 0, level = 0, zslice = 0; - struct pipe_surface *surf; - const uint w = texture->base.width[0], h = texture->base.height[0]; + uint face = 0, level, zslice = 0; const uint *src; - /* temporary restrictions: */ - assert(w >= TILE_SIZE); - assert(h >= TILE_SIZE); - assert(w % TILE_SIZE == 0); - assert(h % TILE_SIZE == 0); + for (level = 0; level <= texture->base.last_level; level++) { + if (!texture->tiled_data[level]) { + struct pipe_surface *surf; - surf = screen->get_tex_surface(screen, &texture->base, face, level, zslice, - PIPE_BUFFER_USAGE_CPU_WRITE); - ASSERT(surf); + const uint w = texture->base.width[level], h = texture->base.height[level]; - src = (const uint *) pipe_surface_map(surf, PIPE_BUFFER_USAGE_CPU_WRITE); + if (w < 32 || h < 32) + continue; + /* temporary restrictions: */ + assert(w >= TILE_SIZE); + assert(h >= TILE_SIZE); + assert(w % TILE_SIZE == 0); + assert(h % TILE_SIZE == 0); - if (texture->tiled_data) { - align_free(texture->tiled_data); - } - texture->tiled_data = align_malloc(w * h * 4, 16); + surf = screen->get_tex_surface(screen, &texture->base, face, level, zslice, + PIPE_BUFFER_USAGE_CPU_WRITE); + ASSERT(surf); + + src = (const uint *) pipe_surface_map(surf, PIPE_BUFFER_USAGE_CPU_WRITE); - tile_copy_data(w, h, TILE_SIZE, texture->tiled_data, src); + if (texture->tiled_data[level]) { + align_free(texture->tiled_data[level]); + } + texture->tiled_data[level] = align_malloc(w * h * 4, 16); - pipe_surface_unmap(surf); + tile_copy_data(w, h, TILE_SIZE, texture->tiled_data[level], src); - pipe_surface_reference(&surf, NULL); + pipe_surface_unmap(surf); + + pipe_surface_reference(&surf, NULL); + } + } } diff --git a/src/gallium/drivers/cell/ppu/cell_texture.h b/src/gallium/drivers/cell/ppu/cell_texture.h index 6d37e95ebce..6d357369841 100644 --- a/src/gallium/drivers/cell/ppu/cell_texture.h +++ b/src/gallium/drivers/cell/ppu/cell_texture.h @@ -40,15 +40,15 @@ struct cell_texture { struct pipe_texture base; - unsigned long level_offset[PIPE_MAX_TEXTURE_LEVELS]; - unsigned long stride[PIPE_MAX_TEXTURE_LEVELS]; + unsigned long level_offset[CELL_MAX_TEXTURE_LEVELS]; + unsigned long stride[CELL_MAX_TEXTURE_LEVELS]; /* The data is held here: */ struct pipe_buffer *buffer; unsigned long buffer_size; - void *tiled_data; /* XXX this may be temporary */ /*ALIGN16*/ + void *tiled_data[CELL_MAX_TEXTURE_LEVELS]; /* XXX this may be temporary */ /*ALIGN16*/ }; diff --git a/src/gallium/drivers/cell/spu/spu_command.c b/src/gallium/drivers/cell/spu/spu_command.c index 64890f6dbd6..089af224155 100644 --- a/src/gallium/drivers/cell/spu/spu_command.c +++ b/src/gallium/drivers/cell/spu/spu_command.c @@ -301,6 +301,12 @@ cmd_state_sampler(const struct cell_command_sampler *sampler) DEBUG_PRINTF("SAMPLER [%u]\n", sampler->unit); spu.sampler[sampler->unit] = sampler->state; +#if 0 + if (spu.sampler[sampler->unit].min_mip_filter != PIPE_TEX_MIPFILTER_NONE) { + spu.sample_texture4[sampler->unit] = sample_texture4_lod; + } + else +#endif if (spu.sampler[sampler->unit].min_img_filter == PIPE_TEX_FILTER_LINEAR) { spu.sample_texture4[sampler->unit] = sample_texture4_bilinear; } @@ -314,24 +320,29 @@ static void cmd_state_texture(const struct cell_command_texture *texture) { const uint unit = texture->unit; - const uint width = texture->width; - const uint height = texture->height; + uint i; - DEBUG_PRINTF("TEXTURE [%u] at %p size %u x %u\n", - texture->unit, texture->start, - texture->width, texture->height); + DEBUG_PRINTF("TEXTURE [%u]\n", texture->unit); - spu.texture[unit].start = texture->start; - spu.texture[unit].width = width; - spu.texture[unit].height = height; + for (i = 0; i < CELL_MAX_TEXTURE_LEVELS; i++) { + uint width = texture->width[i]; + uint height = texture->height[i]; - spu.texture[unit].width4 = spu_splats((float) width); - spu.texture[unit].height4 = spu_splats((float) height); + DEBUG_PRINTF(" LEVEL %u: at %p size[0] %u x %u\n", i, + texture->start[i], texture->width[i], texture->height[i]); - spu.texture[unit].tiles_per_row = width / TILE_SIZE; + spu.texture[unit].level[i].start = texture->start[i]; + spu.texture[unit].level[i].width = width; + spu.texture[unit].level[i].height = height; - spu.texture[unit].tex_size_x_mask = spu_splats(width - 1); - spu.texture[unit].tex_size_y_mask = spu_splats(height - 1); + spu.texture[unit].level[i].tiles_per_row = width / TILE_SIZE; + + spu.texture[unit].level[i].width4 = spu_splats((float) width); + spu.texture[unit].level[i].height4 = spu_splats((float) height); + + spu.texture[unit].level[i].tex_size_x_mask = spu_splats(width - 1); + spu.texture[unit].level[i].tex_size_y_mask = spu_splats(height - 1); + } } diff --git a/src/gallium/drivers/cell/spu/spu_funcs.c b/src/gallium/drivers/cell/spu/spu_funcs.c index 4c90b701ee7..f2946010bda 100644 --- a/src/gallium/drivers/cell/spu/spu_funcs.c +++ b/src/gallium/drivers/cell/spu/spu_funcs.c @@ -100,6 +100,7 @@ spu_log2(vector float x) return spu_mul(v, k); } + static struct vec_4x4 spu_txp(vector float s, vector float t, vector float r, vector float q, unsigned unit) diff --git a/src/gallium/drivers/cell/spu/spu_main.h b/src/gallium/drivers/cell/spu/spu_main.h index e3960dbe8b6..9515543efe4 100644 --- a/src/gallium/drivers/cell/spu/spu_main.h +++ b/src/gallium/drivers/cell/spu/spu_main.h @@ -107,7 +107,7 @@ struct spu_framebuffer } ALIGN16_ATTRIB; -struct spu_texture +struct spu_texture_level { void *start; ushort width, height; @@ -118,6 +118,11 @@ struct spu_texture vector unsigned int tex_size_y_mask; /**< splat(height-1) */ } ALIGN16_ATTRIB; +struct spu_texture +{ + struct spu_texture_level level[CELL_MAX_TEXTURE_LEVELS]; +} ALIGN16_ATTRIB; + /** * All SPU global/context state will be in a singleton object of this type: diff --git a/src/gallium/drivers/cell/spu/spu_texture.c b/src/gallium/drivers/cell/spu/spu_texture.c index 96ef88822aa..96c09e3ccbe 100644 --- a/src/gallium/drivers/cell/spu/spu_texture.c +++ b/src/gallium/drivers/cell/spu/spu_texture.c @@ -27,6 +27,7 @@ #include +#include #include "pipe/p_compiler.h" #include "spu_main.h" @@ -42,11 +43,12 @@ void invalidate_tex_cache(void) { + uint lvl = 0; uint unit = 0; - uint bytes = 4 * spu.texture[unit].width - * spu.texture[unit].height; + uint bytes = 4 * spu.texture[unit].level[lvl].width + * spu.texture[unit].level[lvl].height; - spu_dcache_mark_dirty((unsigned) spu.texture[unit].start, bytes); + spu_dcache_mark_dirty((unsigned) spu.texture[unit].level[lvl].start, bytes); } @@ -64,15 +66,17 @@ invalidate_tex_cache(void) * a time. */ static void -get_four_texels(uint unit, vec_uint4 x, vec_uint4 y, vec_uint4 *texels) +get_four_texels(uint unit, uint level, vec_uint4 x, vec_uint4 y, + vec_uint4 *texels) { - const unsigned texture_ea = (uintptr_t) spu.texture[unit].start; + const struct spu_texture_level *tlevel = &spu.texture[unit].level[level]; + const unsigned texture_ea = (uintptr_t) tlevel->start; vec_uint4 tile_x = spu_rlmask(x, -5); /* tile_x = x / 32 */ vec_uint4 tile_y = spu_rlmask(y, -5); /* tile_y = y / 32 */ const qword offset_x = si_andi((qword) x, 0x1f); /* offset_x = x & 0x1f */ const qword offset_y = si_andi((qword) y, 0x1f); /* offset_y = y & 0x1f */ - const qword tiles_per_row = (qword) spu_splats(spu.texture[unit].tiles_per_row); + const qword tiles_per_row = (qword) spu_splats(tlevel->tiles_per_row); const qword tile_size = (qword) spu_splats((unsigned) sizeof(tile_t)); qword tile_offset = si_mpya((qword) tile_y, tiles_per_row, (qword) tile_x); @@ -104,17 +108,18 @@ sample_texture4_nearest(vector float s, vector float t, vector float r, vector float q, uint unit, vector float colors[4]) { - vector float ss = spu_mul(s, spu.texture[unit].width4); - vector float tt = spu_mul(t, spu.texture[unit].height4); + const uint lvl = 0; + vector float ss = spu_mul(s, spu.texture[unit].level[lvl].width4); + vector float tt = spu_mul(t, spu.texture[unit].level[lvl].height4); vector unsigned int is = spu_convtu(ss, 0); vector unsigned int it = spu_convtu(tt, 0); vec_uint4 texels[4]; /* PIPE_TEX_WRAP_REPEAT */ - is = spu_and(is, spu.texture[unit].tex_size_x_mask); - it = spu_and(it, spu.texture[unit].tex_size_y_mask); + is = spu_and(is, spu.texture[unit].level[lvl].tex_size_x_mask); + it = spu_and(it, spu.texture[unit].level[lvl].tex_size_y_mask); - get_four_texels(unit, is, it, texels); + get_four_texels(unit, lvl, is, it, texels); /* convert four packed ARGBA pixels to float RRRR,GGGG,BBBB,AAAA */ spu_unpack_A8R8G8B8_transpose4(texels, colors); @@ -130,8 +135,9 @@ sample_texture4_bilinear(vector float s, vector float t, vector float r, vector float q, uint unit, vector float colors[4]) { - vector float ss = spu_madd(s, spu.texture[unit].width4, spu_splats(-0.5f)); - vector float tt = spu_madd(t, spu.texture[unit].height4, spu_splats(-0.5f)); + const uint lvl = 0; + vector float ss = spu_madd(s, spu.texture[unit].level[lvl].width4, spu_splats(-0.5f)); + vector float tt = spu_madd(t, spu.texture[unit].level[lvl].height4, spu_splats(-0.5f)); vector unsigned int is0 = spu_convtu(ss, 0); vector unsigned int it0 = spu_convtu(tt, 0); @@ -141,17 +147,17 @@ sample_texture4_bilinear(vector float s, vector float t, vector unsigned int it1 = spu_add(it0, 1); /* PIPE_TEX_WRAP_REPEAT */ - is0 = spu_and(is0, spu.texture[unit].tex_size_x_mask); - it0 = spu_and(it0, spu.texture[unit].tex_size_y_mask); - is1 = spu_and(is1, spu.texture[unit].tex_size_x_mask); - it1 = spu_and(it1, spu.texture[unit].tex_size_y_mask); + is0 = spu_and(is0, spu.texture[unit].level[lvl].tex_size_x_mask); + it0 = spu_and(it0, spu.texture[unit].level[lvl].tex_size_y_mask); + is1 = spu_and(is1, spu.texture[unit].level[lvl].tex_size_x_mask); + it1 = spu_and(it1, spu.texture[unit].level[lvl].tex_size_y_mask); /* get packed int texels */ vector unsigned int texels[16]; - get_four_texels(unit, is0, it0, texels + 0); /* upper-left */ - get_four_texels(unit, is1, it0, texels + 4); /* upper-right */ - get_four_texels(unit, is0, it1, texels + 8); /* lower-left */ - get_four_texels(unit, is1, it1, texels + 12); /* lower-right */ + get_four_texels(unit, lvl, is0, it0, texels + 0); /* upper-left */ + get_four_texels(unit, lvl, is1, it0, texels + 4); /* upper-right */ + get_four_texels(unit, lvl, is0, it1, texels + 8); /* lower-left */ + get_four_texels(unit, lvl, is1, it1, texels + 12); /* lower-right */ /* XXX possibly rework following code to compute the weighted sample * colors with integer arithmetic for fewer int->float conversions. @@ -270,10 +276,11 @@ sample_texture4_bilinear_2(vector float s, vector float t, vector float r, vector float q, uint unit, vector float colors[4]) { + const uint lvl = 0; static const vector float half = {-0.5f, -0.5f, -0.5f, -0.5f}; /* Scale texcoords by size of texture, and add half pixel bias */ - vector float ss = spu_madd(s, spu.texture[unit].width4, half); - vector float tt = spu_madd(t, spu.texture[unit].height4, half); + vector float ss = spu_madd(s, spu.texture[unit].level[lvl].width4, half); + vector float tt = spu_madd(t, spu.texture[unit].level[lvl].height4, half); /* convert float coords to fixed-pt coords with 8 fraction bits */ vector unsigned int is = spu_convtu(ss, 8); @@ -294,17 +301,17 @@ sample_texture4_bilinear_2(vector float s, vector float t, vector unsigned int it1 = spu_add(it0, 1); /* PIPE_TEX_WRAP_REPEAT */ - is0 = spu_and(is0, spu.texture[unit].tex_size_x_mask); - it0 = spu_and(it0, spu.texture[unit].tex_size_y_mask); - is1 = spu_and(is1, spu.texture[unit].tex_size_x_mask); - it1 = spu_and(it1, spu.texture[unit].tex_size_y_mask); + is0 = spu_and(is0, spu.texture[unit].level[lvl].tex_size_x_mask); + it0 = spu_and(it0, spu.texture[unit].level[lvl].tex_size_y_mask); + is1 = spu_and(is1, spu.texture[unit].level[lvl].tex_size_x_mask); + it1 = spu_and(it1, spu.texture[unit].level[lvl].tex_size_y_mask); /* get packed int texels */ vector unsigned int texels[16]; - get_four_texels(unit, is0, it0, texels + 0); /* upper-left */ - get_four_texels(unit, is1, it0, texels + 4); /* upper-right */ - get_four_texels(unit, is0, it1, texels + 8); /* lower-left */ - get_four_texels(unit, is1, it1, texels + 12); /* lower-right */ + get_four_texels(unit, lvl, is0, it0, texels + 0); /* upper-left */ + get_four_texels(unit, lvl, is1, it0, texels + 4); /* upper-right */ + get_four_texels(unit, lvl, is0, it1, texels + 8); /* lower-left */ + get_four_texels(unit, lvl, is1, it1, texels + 12); /* lower-right */ /* twiddle packed 32-bit BGRA pixels into RGBA as four unsigned ints */ { @@ -363,3 +370,54 @@ sample_texture4_bilinear_2(vector float s, vector float t, cSum = spu_add(spu_add(c0, c1), spu_add(c2, c3)); colors[3] = spu_convtf(cSum, 24); } + + + +/** + * Compute level of detail factor from texcoords. + */ +static float +compute_lambda(uint unit, vector float s, vector float t) +{ + uint lvl = 0; + float width = spu.texture[unit].level[lvl].width; + float height = spu.texture[unit].level[lvl].width; + float dsdx = width * (spu_extract(s, 1) - spu_extract(s, 0)); + float dsdy = width * (spu_extract(s, 2) - spu_extract(s, 0)); + float dtdx = height * (spu_extract(t, 1) - spu_extract(t, 0)); + float dtdy = height * (spu_extract(t, 2) - spu_extract(t, 0)); + float x = dsdx * dsdx + dtdx * dtdx; + float y = dsdy * dsdy + dtdy * dtdy; + float rho = x > y ? x : y; + rho = sqrtf(rho); + float lambda = logf(rho) * 1.442695f; + return lambda; +} + + + +/** + * Texture sampling with level of detail selection. + */ +void +sample_texture4_lod(vector float s, vector float t, + vector float r, vector float q, + uint unit, vector float colors[4]) +{ + float lambda = compute_lambda(unit, s, t); + + if (lambda < spu.sampler[unit].min_lod) + lambda = spu.sampler[unit].min_lod; + else if (lambda > spu.sampler[unit].max_lod) + lambda = spu.sampler[unit].max_lod; + + /* hack for now */ + int level = (int) lambda; + if (level > 3) + level = 3; + + /* + sample_texture4_bilinear_2(s, t, r, q, unit, level, colors); + */ +} + diff --git a/src/gallium/drivers/cell/spu/spu_texture.h b/src/gallium/drivers/cell/spu/spu_texture.h index 38a17deda25..4802f7c47c1 100644 --- a/src/gallium/drivers/cell/spu/spu_texture.h +++ b/src/gallium/drivers/cell/spu/spu_texture.h @@ -53,4 +53,10 @@ sample_texture4_bilinear_2(vector float s, vector float t, uint unit, vector float colors[4]); +extern void +sample_texture4_lod(vector float s, vector float t, + vector float r, vector float q, + uint unit, vector float colors[4]); + + #endif /* SPU_TEXTURE_H */