From: Brian Paul Date: Tue, 14 Oct 2008 23:11:29 +0000 (-0600) Subject: cell: support for cubemaps X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8f7c6b55ae962e30f32cfec9a14a652d3b5b5943;p=mesa.git cell: support for cubemaps Though, progs/demos/cubemap.c doesn't quite work right... --- diff --git a/src/gallium/drivers/cell/common.h b/src/gallium/drivers/cell/common.h index e4de9a551d7..c1e78f4db3d 100644 --- a/src/gallium/drivers/cell/common.h +++ b/src/gallium/drivers/cell/common.h @@ -251,6 +251,7 @@ struct cell_command_sampler struct cell_command_texture { uint64_t opcode; /**< CELL_CMD_STATE_TEXTURE */ + uint target; /**< PIPE_TEXTURE_x */ uint unit; void *start[CELL_MAX_TEXTURE_LEVELS]; /**< Address in main memory */ ushort width[CELL_MAX_TEXTURE_LEVELS]; diff --git a/src/gallium/drivers/cell/ppu/cell_state_emit.c b/src/gallium/drivers/cell/ppu/cell_state_emit.c index cae546b7002..d4a867ffcf4 100644 --- a/src/gallium/drivers/cell/ppu/cell_state_emit.c +++ b/src/gallium/drivers/cell/ppu/cell_state_emit.c @@ -217,6 +217,7 @@ cell_emit_state(struct cell_context *cell) texture->width[level] = cell->texture[i]->base.width[level]; texture->height[level] = cell->texture[i]->base.height[level]; } + texture->target = cell->texture[i]->base.target; } else { uint level; @@ -225,6 +226,7 @@ cell_emit_state(struct cell_context *cell) texture->width[level] = 0; texture->height[level] = 0; } + texture->target = 0; } } } diff --git a/src/gallium/drivers/cell/ppu/cell_texture.c b/src/gallium/drivers/cell/ppu/cell_texture.c index 4fd66bdea08..4c92ef154fb 100644 --- a/src/gallium/drivers/cell/ppu/cell_texture.c +++ b/src/gallium/drivers/cell/ppu/cell_texture.c @@ -137,6 +137,7 @@ cell_texture_release(struct pipe_screen *screen, */ if (--(*pt)->refcount <= 0) { struct cell_texture *ct = cell_texture(*pt); + uint i; /* DBG("%s deleting %p\n", __FUNCTION__, (void *) ct); @@ -144,6 +145,12 @@ cell_texture_release(struct pipe_screen *screen, pipe_buffer_reference(screen, &ct->buffer, NULL); + for (i = 0; i < CELL_MAX_TEXTURE_LEVELS; i++) { + if (ct->tiled_data[i]) { + FREE(ct->tiled_data[i]); + } + } + FREE(ct); } *pt = NULL; @@ -204,27 +211,33 @@ static void cell_twiddle_texture(struct pipe_screen *screen, struct pipe_surface *surface) { - struct cell_texture *texture = cell_texture(surface->texture); + struct cell_texture *ct = cell_texture(surface->texture); const uint level = surface->level; - const uint texWidth = texture->base.width[level]; - const uint texHeight = texture->base.height[level]; + const uint texWidth = ct->base.width[level]; + const uint texHeight = ct->base.height[level]; const uint bufWidth = align(texWidth, TILE_SIZE); const uint bufHeight = align(texHeight, TILE_SIZE); const void *map = pipe_buffer_map(screen, surface->buffer, PIPE_BUFFER_USAGE_CPU_READ); const uint *src = (const uint *) ((const ubyte *) map + surface->offset); - switch (texture->base.format) { + switch (ct->base.format) { case PIPE_FORMAT_A8R8G8B8_UNORM: - /* free old tiled data */ - if (texture->tiled_data[level]) { - align_free(texture->tiled_data[level]); + { + int numFaces = ct->base.target == PIPE_TEXTURE_CUBE ? 6 : 1; + int offset = bufWidth * bufHeight * 4 * surface->face; + uint *dst; + + if (!ct->tiled_data[level]) { + ct->tiled_data[level] = + align_malloc(bufWidth * bufHeight * 4 * numFaces, 16); + } + + dst = (uint *) ((ubyte *) ct->tiled_data[level] + offset); + + twiddle_image_uint(texWidth, texHeight, TILE_SIZE, dst, + surface->stride, src); } - /* alloc new tiled data */ - texture->tiled_data[level] = align_malloc(bufWidth * bufHeight * 4, 16); - twiddle_image_uint(texWidth, texHeight, TILE_SIZE, - texture->tiled_data[level], - surface->stride, src); break; default: printf("Cell: twiddle unsupported texture format\n"); diff --git a/src/gallium/drivers/cell/spu/spu_command.c b/src/gallium/drivers/cell/spu/spu_command.c index b1efe97e76c..c951fa6f317 100644 --- a/src/gallium/drivers/cell/spu/spu_command.c +++ b/src/gallium/drivers/cell/spu/spu_command.c @@ -301,7 +301,8 @@ cmd_state_framebuffer(const struct cell_command_framebuffer *cmd) */ static void update_tex_masks(struct spu_texture *texture, - const struct pipe_sampler_state *sampler) + const struct pipe_sampler_state *sampler, + uint unit) { uint i; @@ -328,6 +329,11 @@ update_tex_masks(struct spu_texture *texture, texture->level[i].scale_t = spu_splats(1.0f); } } + + /* XXX temporary hack */ + if (texture->target == PIPE_TEXTURE_CUBE) { + spu.sample_texture4[unit] = sample_texture4_cube; + } } @@ -378,7 +384,7 @@ cmd_state_sampler(const struct cell_command_sampler *sampler) ASSERT(0); } - update_tex_masks(&spu.texture[unit], &spu.sampler[unit]); + update_tex_masks(&spu.texture[unit], &spu.sampler[unit], unit); } @@ -393,6 +399,7 @@ cmd_state_texture(const struct cell_command_texture *texture) DEBUG_PRINTF("TEXTURE [%u]\n", texture->unit); spu.texture[unit].max_level = 0; + spu.texture[unit].target = texture->target; for (i = 0; i < CELL_MAX_TEXTURE_LEVELS; i++) { uint width = texture->width[i]; @@ -408,6 +415,10 @@ cmd_state_texture(const struct cell_command_texture *texture) spu.texture[unit].level[i].tiles_per_row = (width + TILE_SIZE - 1) / TILE_SIZE; + spu.texture[unit].level[i].bytes_per_image = + 4 * ((width + TILE_SIZE - 1) & ~(TILE_SIZE-1)) + * ((height + TILE_SIZE - 1) & ~(TILE_SIZE-1)); + spu.texture[unit].level[i].max_s = spu_splats((int) width - 1); spu.texture[unit].level[i].max_t = spu_splats((int) height - 1); @@ -415,7 +426,7 @@ cmd_state_texture(const struct cell_command_texture *texture) spu.texture[unit].max_level = i; } - update_tex_masks(&spu.texture[unit], &spu.sampler[unit]); + update_tex_masks(&spu.texture[unit], &spu.sampler[unit], unit); //Debug=0; } diff --git a/src/gallium/drivers/cell/spu/spu_funcs.c b/src/gallium/drivers/cell/spu/spu_funcs.c index 66b82f673d5..5c3ee305d48 100644 --- a/src/gallium/drivers/cell/spu/spu_funcs.c +++ b/src/gallium/drivers/cell/spu/spu_funcs.c @@ -106,7 +106,7 @@ spu_txp(vector float s, vector float t, vector float r, vector float q, unsigned unit) { struct vec_4x4 colors; - spu.sample_texture4[unit](s, t, r, q, unit, 0, colors.v); + spu.sample_texture4[unit](s, t, r, q, unit, 0, 0, colors.v); return colors; } diff --git a/src/gallium/drivers/cell/spu/spu_main.h b/src/gallium/drivers/cell/spu/spu_main.h index 45c6f4ced1d..8781041bff8 100644 --- a/src/gallium/drivers/cell/spu/spu_main.h +++ b/src/gallium/drivers/cell/spu/spu_main.h @@ -68,7 +68,7 @@ typedef void (*spu_sample_texture4_func)(vector float s, vector float t, vector float r, vector float q, - uint unit, uint level, + uint unit, uint level, uint face, vector float colors[4]); @@ -113,6 +113,7 @@ struct spu_texture_level void *start; ushort width, height; ushort tiles_per_row; + uint bytes_per_image; /** texcoord scale factors */ vector float scale_s, scale_t; /** texcoord masks (if REPEAT then size-1, else ~0) */ @@ -126,6 +127,7 @@ struct spu_texture { struct spu_texture_level level[CELL_MAX_TEXTURE_LEVELS]; uint max_level; + uint target; /**< PIPE_TEXTURE_x */ } ALIGN16_ATTRIB; diff --git a/src/gallium/drivers/cell/spu/spu_texture.c b/src/gallium/drivers/cell/spu/spu_texture.c index b21c43a467a..2570f02c730 100644 --- a/src/gallium/drivers/cell/spu/spu_texture.c +++ b/src/gallium/drivers/cell/spu/spu_texture.c @@ -48,6 +48,9 @@ invalidate_tex_cache(void) uint bytes = 4 * spu.texture[unit].level[lvl].width * spu.texture[unit].level[lvl].height; + if (spu.texture[unit].target == PIPE_TEXTURE_CUBE) + bytes *= 6; + spu_dcache_mark_dirty((unsigned) spu.texture[unit].level[lvl].start, bytes); } } @@ -67,11 +70,11 @@ invalidate_tex_cache(void) * a time. */ static void -get_four_texels(uint unit, uint level, vec_int4 x, vec_int4 y, +get_four_texels(uint unit, uint level, uint face, vec_int4 x, vec_int4 y, vec_uint4 *texels) { const struct spu_texture_level *tlevel = &spu.texture[unit].level[level]; - const unsigned texture_ea = (uintptr_t) tlevel->start; + unsigned texture_ea = (uintptr_t) tlevel->start; const vec_int4 tile_x = spu_rlmask(x, -5); /* tile_x = x / 32 */ const vec_int4 tile_y = spu_rlmask(y, -5); /* tile_y = y / 32 */ const qword offset_x = si_andi((qword) x, 0x1f); /* offset_x = x & 0x1f */ @@ -88,6 +91,8 @@ get_four_texels(uint unit, uint level, vec_int4 x, vec_int4 y, vec_uint4 offset = (vec_uint4) si_a(tile_offset, texel_offset); + texture_ea = texture_ea + face * tlevel->bytes_per_image; + spu_dcache_fetch_unaligned((qword *) & texels[0], texture_ea + spu_extract(offset, 0), 4); spu_dcache_fetch_unaligned((qword *) & texels[1], @@ -121,7 +126,8 @@ spu_clamp(vector signed int vec, vector signed int max) void sample_texture4_nearest(vector float s, vector float t, vector float r, vector float q, - uint unit, uint level, vector float colors[4]) + uint unit, uint level, uint face, + vector float colors[4]) { const struct spu_texture_level *tlevel = &spu.texture[unit].level[level]; vector float ss = spu_mul(s, tlevel->scale_s); @@ -138,7 +144,7 @@ sample_texture4_nearest(vector float s, vector float t, is = spu_clamp(is, tlevel->max_s); it = spu_clamp(it, tlevel->max_t); - get_four_texels(unit, level, is, it, texels); + get_four_texels(unit, level, face, is, it, texels); /* convert four packed ARGBA pixels to float RRRR,GGGG,BBBB,AAAA */ spu_unpack_A8R8G8B8_transpose4(texels, colors); @@ -152,11 +158,14 @@ sample_texture4_nearest(vector float s, vector float t, void sample_texture4_bilinear(vector float s, vector float t, vector float r, vector float q, - uint unit, uint level, vector float colors[4]) + uint unit, uint level, uint face, + vector float colors[4]) { const struct spu_texture_level *tlevel = &spu.texture[unit].level[level]; - vector float ss = spu_madd(s, tlevel->scale_s, spu_splats(-0.5f)); - vector float tt = spu_madd(t, tlevel->scale_t, spu_splats(-0.5f)); + static const vector float half = {-0.5f, -0.5f, -0.5f, -0.5f}; + + vector float ss = spu_madd(s, tlevel->scale_s, half); + vector float tt = spu_madd(t, tlevel->scale_t, half); vector signed int is0 = spu_convts(ss, 0); vector signed int it0 = spu_convts(tt, 0); @@ -179,10 +188,10 @@ sample_texture4_bilinear(vector float s, vector float t, /* get packed int texels */ vector unsigned int texels[16]; - get_four_texels(unit, level, is0, it0, texels + 0); /* upper-left */ - get_four_texels(unit, level, is1, it0, texels + 4); /* upper-right */ - get_four_texels(unit, level, is0, it1, texels + 8); /* lower-left */ - get_four_texels(unit, level, is1, it1, texels + 12); /* lower-right */ + get_four_texels(unit, level, face, is0, it0, texels + 0); /* upper-left */ + get_four_texels(unit, level, face, is1, it0, texels + 4); /* upper-right */ + get_four_texels(unit, level, face, is0, it1, texels + 8); /* lower-left */ + get_four_texels(unit, level, face, 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. @@ -299,10 +308,12 @@ transpose(vector unsigned int *mOut0, void sample_texture4_bilinear_2(vector float s, vector float t, vector float r, vector float q, - uint unit, uint level, vector float colors[4]) + uint unit, uint level, uint face, + vector float colors[4]) { const struct spu_texture_level *tlevel = &spu.texture[unit].level[level]; 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, tlevel->scale_s, half); vector float tt = spu_madd(t, tlevel->scale_t, half); @@ -339,10 +350,10 @@ sample_texture4_bilinear_2(vector float s, vector float t, /* get packed int texels */ vector unsigned int texels[16]; - get_four_texels(unit, level, is0, it0, texels + 0); /* upper-left */ - get_four_texels(unit, level, is1, it0, texels + 4); /* upper-right */ - get_four_texels(unit, level, is0, it1, texels + 8); /* lower-left */ - get_four_texels(unit, level, is1, it1, texels + 12); /* lower-right */ + get_four_texels(unit, level, face, is0, it0, texels + 0); /* upper-left */ + get_four_texels(unit, level, face, is1, it0, texels + 4); /* upper-right */ + get_four_texels(unit, level, face, is0, it1, texels + 8); /* lower-left */ + get_four_texels(unit, level, face, is1, it1, texels + 12); /* lower-right */ /* twiddle packed 32-bit BGRA pixels into RGBA as four unsigned ints */ { @@ -433,7 +444,8 @@ compute_lambda(uint unit, vector float s, vector float t) void sample_texture4_lod(vector float s, vector float t, vector float r, vector float q, - uint unit, uint level_ignored, vector float colors[4]) + uint unit, uint level_ignored, uint face, + vector float colors[4]) { /* * Note that we're computing a lambda/lod here that's used for all @@ -452,15 +464,136 @@ sample_texture4_lod(vector float s, vector float t, if (lambda <= 0.0f) { /* magnify */ - spu.mag_sample_texture4[unit](s, t, r, q, unit, 0, colors); + spu.mag_sample_texture4[unit](s, t, r, q, unit, 0, 0, colors); } else { /* minify */ int level = (int) (lambda + 0.5f); if (level > (int) spu.texture[unit].max_level) level = spu.texture[unit].max_level; - spu.min_sample_texture4[unit](s, t, r, q, unit, level, colors); + spu.min_sample_texture4[unit](s, t, r, q, unit, level, 0, colors); /* XXX to do: mipmap level interpolation */ } } + +/** XXX need a SIMD version of this */ +static unsigned +choose_cube_face(float rx, float ry, float rz, float *newS, float *newT) +{ + /* + major axis + direction target sc tc ma + ---------- ------------------------------- --- --- --- + +rx TEXTURE_CUBE_MAP_POSITIVE_X_EXT -rz -ry rx + -rx TEXTURE_CUBE_MAP_NEGATIVE_X_EXT +rz -ry rx + +ry TEXTURE_CUBE_MAP_POSITIVE_Y_EXT +rx +rz ry + -ry TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT +rx -rz ry + +rz TEXTURE_CUBE_MAP_POSITIVE_Z_EXT +rx -ry rz + -rz TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT -rx -ry rz + */ + const float arx = fabsf(rx); + const float ary = fabsf(ry); + const float arz = fabsf(rz); + unsigned face; + float sc, tc, ma; + + if (arx > ary && arx > arz) { + if (rx >= 0.0F) { + face = PIPE_TEX_FACE_POS_X; + sc = -rz; + tc = -ry; + ma = arx; + } + else { + face = PIPE_TEX_FACE_NEG_X; + sc = rz; + tc = -ry; + ma = arx; + } + } + else if (ary > arx && ary > arz) { + if (ry >= 0.0F) { + face = PIPE_TEX_FACE_POS_Y; + sc = rx; + tc = rz; + ma = ary; + } + else { + face = PIPE_TEX_FACE_NEG_Y; + sc = rx; + tc = -rz; + ma = ary; + } + } + else { + if (rz > 0.0F) { + face = PIPE_TEX_FACE_POS_Z; + sc = rx; + tc = -ry; + ma = arz; + } + else { + face = PIPE_TEX_FACE_NEG_Z; + sc = -rx; + tc = -ry; + ma = arz; + } + } + + *newS = (sc / ma + 1.0F) * 0.5F; + *newT = (tc / ma + 1.0F) * 0.5F; + + return face; +} + + + +void +sample_texture4_cube(vector float s, vector float t, + vector float r, vector float q, + uint unit, uint level, int face_ignored, + vector float colors[4]) +{ + static const vector float zero = {0.0f, 0.0f, 0.0f, 0.0f}; + uint p, faces[4]; + float newS[4], newT[4]; + + /* Compute cube face referenced by the four sets of texcoords. + * XXX we should SIMD-ize this. + */ + for (p = 0; p < 4; p++) { + float rx = spu_extract(s, p); + float ry = spu_extract(t, p); + float rz = spu_extract(r, p); + faces[p] = choose_cube_face(rx, ry, rz, &newS[p], &newT[p]); + } + + if (faces[0] == faces[1] && + faces[0] == faces[2] && + faces[0] == faces[3]) { + /* GOOD! All four texcoords refer to the same cube face */ + s = (vector float) {newS[0], newS[1], newS[2], newS[3]}; + t = (vector float) {newT[0], newT[1], newT[2], newT[3]}; + sample_texture4_nearest(s, t, zero, zero, unit, level, faces[0], colors); + } + else { + /* BAD! The four texcoords refer to different faces */ + for (p = 0; p < 4; p++) { + vector float c[4]; + + sample_texture4_nearest(spu_splats(newS[p]), spu_splats(newT[p]), + zero, zero, unit, level, faces[p], c); + + float red = spu_extract(c[0], p); + float green = spu_extract(c[1], p); + float blue = spu_extract(c[2], p); + float alpha = spu_extract(c[3], p); + + colors[0] = spu_insert(red, colors[0], p); + colors[1] = spu_insert(green, colors[1], p); + colors[2] = spu_insert(blue, colors[2], p); + colors[3] = spu_insert(alpha, colors[3], p); + } + } +} diff --git a/src/gallium/drivers/cell/spu/spu_texture.h b/src/gallium/drivers/cell/spu/spu_texture.h index ec06a50b4a1..08b891a4a86 100644 --- a/src/gallium/drivers/cell/spu/spu_texture.h +++ b/src/gallium/drivers/cell/spu/spu_texture.h @@ -39,24 +39,35 @@ invalidate_tex_cache(void); extern void sample_texture4_nearest(vector float s, vector float t, vector float r, vector float q, - uint unit, uint level, vector float colors[4]); + uint unit, uint level, uint face, + vector float colors[4]); extern void sample_texture4_bilinear(vector float s, vector float t, vector float r, vector float q, - uint unit, uint level, vector float colors[4]); + uint unit, uint level, uint face, + vector float colors[4]); extern void sample_texture4_bilinear_2(vector float s, vector float t, - vector float r, vector float q, - uint unit, uint level, vector float colors[4]); + vector float r, vector float q, + uint unit, uint level, uint face, + vector float colors[4]); extern void sample_texture4_lod(vector float s, vector float t, vector float r, vector float q, - uint unit, uint level, vector float colors[4]); + uint unit, uint level, uint face, + vector float colors[4]); + + +extern void +sample_texture4_cube(vector float s, vector float t, + vector float r, vector float q, + uint unit, uint level_ignored, int face_ignored, + vector float colors[4]); #endif /* SPU_TEXTURE_H */