diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_blit.c | 3 | ||||
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_blitter.c | 3 | ||||
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c | 3 | ||||
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_texture.c | 11 | ||||
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_texture.h | 5 |
5 files changed, 19 insertions, 6 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_blit.c b/mesalib/src/gallium/auxiliary/util/u_blit.c index 4ba71b929..595287d3b 100644 --- a/mesalib/src/gallium/auxiliary/util/u_blit.c +++ b/mesalib/src/gallium/auxiliary/util/u_blit.c @@ -272,7 +272,8 @@ setup_vertex_data_tex(struct blit_state *ctx, const unsigned stride = sizeof ctx->vertices[0] / sizeof ctx->vertices[0][0][0]; util_map_texcoords2d_onto_cubemap(src_face, &ctx->vertices[0][1][0], stride, - &ctx->vertices[0][1][0], stride); + &ctx->vertices[0][1][0], stride, + TRUE); } offset = get_next_slot( ctx ); diff --git a/mesalib/src/gallium/auxiliary/util/u_blitter.c b/mesalib/src/gallium/auxiliary/util/u_blitter.c index 096d3bc2b..b95cbab12 100644 --- a/mesalib/src/gallium/auxiliary/util/u_blitter.c +++ b/mesalib/src/gallium/auxiliary/util/u_blitter.c @@ -659,7 +659,8 @@ static void blitter_set_texcoords(struct blitter_context_priv *ctx, util_map_texcoords2d_onto_cubemap(layer % 6, /* pointer, stride in floats */ &face_coord[0][0], 2, - &ctx->vertices[0][1][0], 8); + &ctx->vertices[0][1][0], 8, + TRUE); } else { set_texcoords_in_vertices(coord, &ctx->vertices[0][1][0], 8); } diff --git a/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c b/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c index a885f2b0f..84bf30f08 100644 --- a/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c +++ b/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c @@ -1409,7 +1409,8 @@ set_vertex_data(struct gen_mipmap_state *ctx, }; util_map_texcoords2d_onto_cubemap(layer, &st[0][0], 2, - &ctx->vertices[0][1][0], 8); + &ctx->vertices[0][1][0], 8, + FALSE); } else if (tex_target == PIPE_TEXTURE_1D_ARRAY) { /* 1D texture array */ diff --git a/mesalib/src/gallium/auxiliary/util/u_texture.c b/mesalib/src/gallium/auxiliary/util/u_texture.c index d97e57a79..e865f8e73 100644 --- a/mesalib/src/gallium/auxiliary/util/u_texture.c +++ b/mesalib/src/gallium/auxiliary/util/u_texture.c @@ -42,7 +42,8 @@ void util_map_texcoords2d_onto_cubemap(unsigned face, const float *in_st, unsigned in_stride, - float *out_str, unsigned out_stride) + float *out_str, unsigned out_stride, + boolean allow_scale) { int i; float rx, ry, rz; @@ -52,8 +53,14 @@ void util_map_texcoords2d_onto_cubemap(unsigned face, /* Compute sc = +/-scale and tc = +/-scale. * Not +/-1 to avoid cube face selection ambiguity near the edges, * though that can still sometimes happen with this scale factor... + * + * XXX: Yep, there is no safe scale factor that will prevent sampling + * the neighbouring face when stretching out. A more reliable solution + * would be to clamp (sc, tc) against +/- 1.0-1.0/mipsize, in the shader. + * + * Also, this is not necessary when minifying, or 1:1 blits. */ - const float scale = 0.9999f; + const float scale = allow_scale ? 0.9999f : 1.0f; const float sc = (2 * in_st[0] - 1) * scale; const float tc = (2 * in_st[1] - 1) * scale; diff --git a/mesalib/src/gallium/auxiliary/util/u_texture.h b/mesalib/src/gallium/auxiliary/util/u_texture.h index 93b2f1e4c..b1c8c7091 100644 --- a/mesalib/src/gallium/auxiliary/util/u_texture.h +++ b/mesalib/src/gallium/auxiliary/util/u_texture.h @@ -27,6 +27,8 @@ #ifndef U_TEXTURE_H #define U_TEXTURE_H +#include "pipe/p_compiler.h" + #ifdef __cplusplus extern "C" { #endif @@ -44,7 +46,8 @@ extern "C" { */ void util_map_texcoords2d_onto_cubemap(unsigned face, const float *in_st, unsigned in_stride, - float *out_str, unsigned out_stride); + float *out_str, unsigned out_stride, + boolean allow_scale); #ifdef __cplusplus |