diff options
| -rw-r--r-- | src/mesa/pipe/softpipe/sp_tex_sample.c | 122 |
1 files changed, 73 insertions, 49 deletions
diff --git a/src/mesa/pipe/softpipe/sp_tex_sample.c b/src/mesa/pipe/softpipe/sp_tex_sample.c index de14586b67..72000f9510 100644 --- a/src/mesa/pipe/softpipe/sp_tex_sample.c +++ b/src/mesa/pipe/softpipe/sp_tex_sample.c @@ -339,8 +339,7 @@ linear_texcoord(GLuint wrapMode, float s, GLuint size, static GLuint -choose_cube_face(float rx, float ry, float rz, - float newCoord[4]) +choose_cube_face(float rx, float ry, float rz, float *newS, float *newT) { /* major axis @@ -400,8 +399,8 @@ choose_cube_face(float rx, float ry, float rz, } } - newCoord[0] = ( sc / ma + 1.0F ) * 0.5F; - newCoord[1] = ( tc / ma + 1.0F ) * 0.5F; + *newS = ( sc / ma + 1.0F ) * 0.5F; + *newT = ( tc / ma + 1.0F ) * 0.5F; return face; } @@ -542,8 +541,12 @@ static unsigned compute_cache_pos(unsigned face, unsigned level, unsigned zslice, int tx, int ty) { - unsigned entry = tx + ty * 2 + zslice *4 + level + face; +#if 01 + unsigned entry = tx + ty * 2 + zslice * 4 + face + level; return entry % TEX_CACHE_NUM_ENTRIES; +#else + return 0; +#endif } @@ -577,7 +580,9 @@ get_texel(struct tgsi_sampler *sampler, struct pipe_surface *ps = pipe->get_tex_surface(pipe, sampler->texture, face, level, zslice); - printf("cache miss (%d, %d)\n", x, y); + /* + printf("cache miss (%d, %d) face %u\n", tx, ty, face); + */ assert(ps->width == sampler->texture->level[level].width); assert(ps->height == sampler->texture->level[level].height); @@ -609,41 +614,23 @@ get_texel(struct tgsi_sampler *sampler, -static void -sp_get_samples_1d(struct tgsi_sampler *sampler, - const float s[QUAD_SIZE], - const float t[QUAD_SIZE], - const float p[QUAD_SIZE], - float lodbias, - float rgba[NUM_CHANNELS][QUAD_SIZE]) -{ -} - - /** - * Called via tgsi_sampler::get_samples() - * Use the sampler's state setting to get a filtered RGBA value - * from the sampler's texture (mipmap tree). - * - * XXX we can implement many versions of this function, each - * tightly coded for a specific combination of sampler state - * (nearest + repeat), (bilinear mipmap + clamp), etc. - * - * The update_samplers() function in st_atom_sampler.c could create - * a new tgsi_sampler object for each state combo it finds.... + * Common code for sampling 1D/2D/cube textures. + * Could probably extend for 3D... */ static void -sp_get_samples_2d(struct tgsi_sampler *sampler, - const float s[QUAD_SIZE], - const float t[QUAD_SIZE], - const float p[QUAD_SIZE], - float lodbias, - float rgba[NUM_CHANNELS][QUAD_SIZE]) +sp_get_samples_2d_common(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE], + const unsigned faces[4]) { unsigned level0, level1, j, imgFilter; int width, height; float levelBlend; - + choose_mipmap_levels(sampler, s, t, p, lodbias, &level0, &level1, &levelBlend, &imgFilter); @@ -657,7 +644,7 @@ sp_get_samples_2d(struct tgsi_sampler *sampler, for (j = 0; j < QUAD_SIZE; j++) { int x = nearest_texcoord(sampler->state->wrap_s, s[j], width); int y = nearest_texcoord(sampler->state->wrap_t, t[j], height); - get_texel(sampler, 0, level0, 0, x, y, rgba, j); + get_texel(sampler, faces[j], level0, 0, x, y, rgba, j); if (level0 != level1) { /* get texels from second mipmap level and blend */ @@ -665,7 +652,7 @@ sp_get_samples_2d(struct tgsi_sampler *sampler, unsigned c; x = x / 2; y = y / 2; - get_texel(sampler, 0, level1, 0, x, y, rgba2, j); + get_texel(sampler, faces[j], level1, 0, x, y, rgba2, j); for (c = 0; c < NUM_CHANNELS; c++) { rgba[c][j] = LERP(levelBlend, rgba2[c][j], rgba[c][j]); } @@ -678,10 +665,10 @@ sp_get_samples_2d(struct tgsi_sampler *sampler, int x0, y0, x1, y1, c; linear_texcoord(sampler->state->wrap_s, s[j], width, &x0, &x1, &a); linear_texcoord(sampler->state->wrap_t, t[j], height, &y0, &y1, &b); - get_texel(sampler, 0, level0, 0, x0, y0, tx, 0); - get_texel(sampler, 0, level0, 0, x1, y0, tx, 1); - get_texel(sampler, 0, level0, 0, x0, y1, tx, 2); - get_texel(sampler, 0, level0, 0, x1, y1, tx, 3); + get_texel(sampler, faces[j], level0, 0, x0, y0, tx, 0); + get_texel(sampler, faces[j], level0, 0, x1, y0, tx, 1); + get_texel(sampler, faces[j], level0, 0, x0, y1, tx, 2); + get_texel(sampler, faces[j], level0, 0, x1, y1, tx, 3); for (c = 0; c < 4; c++) { rgba[c][j] = lerp_2d(a, b, tx[c][0], tx[c][1], tx[c][2], tx[c][3]); } @@ -694,10 +681,10 @@ sp_get_samples_2d(struct tgsi_sampler *sampler, y0 = y0 / 2; x1 = x1 / 2; y1 = y1 / 2; - get_texel(sampler, 0, level1, 0, x0, y0, tx, 0); - get_texel(sampler, 0, level1, 0, x1, y0, tx, 1); - get_texel(sampler, 0, level1, 0, x0, y1, tx, 2); - get_texel(sampler, 0, level1, 0, x1, y1, tx, 3); + get_texel(sampler, faces[j], level1, 0, x0, y0, tx, 0); + get_texel(sampler, faces[j], level1, 0, x1, y0, tx, 1); + get_texel(sampler, faces[j], level1, 0, x0, y1, tx, 2); + get_texel(sampler, faces[j], level1, 0, x1, y1, tx, 3); for (c = 0; c < 4; c++) { rgba2[c][j] = lerp_2d(a, b, tx[c][0], tx[c][1], tx[c][2], tx[c][3]); @@ -716,6 +703,32 @@ sp_get_samples_2d(struct tgsi_sampler *sampler, static void +sp_get_samples_1d(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE]) +{ + static const unsigned faces[4] = {0, 0, 0, 0}; + sp_get_samples_2d_common(sampler, s, NULL, NULL, lodbias, rgba, faces); +} + + +static void +sp_get_samples_2d(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE]) +{ + static const unsigned faces[4] = {0, 0, 0, 0}; + sp_get_samples_2d_common(sampler, s, t, NULL, lodbias, rgba, faces); +} + + +static void sp_get_samples_3d(struct tgsi_sampler *sampler, const float s[QUAD_SIZE], const float t[QUAD_SIZE], @@ -735,16 +748,27 @@ sp_get_samples_cube(struct tgsi_sampler *sampler, float lodbias, float rgba[NUM_CHANNELS][QUAD_SIZE]) { - GLuint j; + unsigned faces[QUAD_SIZE], j; + float ssss[4], tttt[4]; for (j = 0; j < QUAD_SIZE; j++) { - float st[4]; - GLuint face = choose_cube_face(s[j], t[j], p[j], st); - (void) face; - /* get/map surface corresponding to the face */ + faces[j] = choose_cube_face(s[j], t[j], p[j], ssss + j, tttt + j); } + sp_get_samples_2d_common(sampler, ssss, tttt, NULL, lodbias, rgba, faces); } +/** + * Called via tgsi_sampler::get_samples() + * Use the sampler's state setting to get a filtered RGBA value + * from the sampler's texture (mipmap tree). + * + * XXX we can implement many versions of this function, each + * tightly coded for a specific combination of sampler state + * (nearest + repeat), (bilinear mipmap + clamp), etc. + * + * The update_samplers() function in st_atom_sampler.c could create + * a new tgsi_sampler object for each state combo it finds.... + */ void sp_get_samples(struct tgsi_sampler *sampler, const float s[QUAD_SIZE], |