diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_tex_sample.c')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_tex_sample.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/src/gallium/drivers/softpipe/sp_tex_sample.c b/src/gallium/drivers/softpipe/sp_tex_sample.c index 4121857..8dcc297 100644 --- a/src/gallium/drivers/softpipe/sp_tex_sample.c +++ b/src/gallium/drivers/softpipe/sp_tex_sample.c @@ -3112,7 +3112,11 @@ sp_tgsi_get_dims(struct tgsi_sampler *tgsi_sampler, struct sp_tgsi_sampler *sp_samp = (struct sp_tgsi_sampler *)tgsi_sampler; assert(sview_index < PIPE_MAX_SHADER_SAMPLER_VIEWS); - /* TODO should have defined behavior if no texture is bound. */ + /* always have a view here but texture is NULL if no sampler view was set. */ + if (!sp_samp->sp_sview[sview_index].base.texture) { + dims[0] = dims[1] = dims[2] = dims[3] = 0; + return; + } sp_get_dims(&sp_samp->sp_sview[sview_index], level, dims); } @@ -3136,8 +3140,16 @@ sp_tgsi_get_samples(struct tgsi_sampler *tgsi_sampler, assert(sview_index < PIPE_MAX_SHADER_SAMPLER_VIEWS); assert(sampler_index < PIPE_MAX_SAMPLERS); assert(sp_samp->sp_sampler[sampler_index]); - /* FIXME should have defined behavior if no texture is bound. */ - assert(sp_samp->sp_sview[sview_index].get_samples); + /* always have a view here but texture is NULL if no sampler view was set. */ + if (!sp_samp->sp_sview[sview_index].base.texture) { + int i, j; + for (j = 0; j < TGSI_NUM_CHANNELS; j++) { + for (i = 0; i < TGSI_QUAD_SIZE; i++) { + rgba[j][i] = 0.0f; + } + } + return; + } sp_samp->sp_sview[sview_index].get_samples(&sp_samp->sp_sview[sview_index], sp_samp->sp_sampler[sampler_index], s, t, p, c0, lod, control, rgba); @@ -3155,8 +3167,16 @@ sp_tgsi_get_texel(struct tgsi_sampler *tgsi_sampler, struct sp_tgsi_sampler *sp_samp = (struct sp_tgsi_sampler *)tgsi_sampler; assert(sview_index < PIPE_MAX_SHADER_SAMPLER_VIEWS); - /* FIXME should have defined behavior if no texture is bound. */ - assert(sp_samp->sp_sview[sview_index].base.texture); + /* always have a view here but texture is NULL if no sampler view was set. */ + if (!sp_samp->sp_sview[sview_index].base.texture) { + int i, j; + for (j = 0; j < TGSI_NUM_CHANNELS; j++) { + for (i = 0; i < TGSI_QUAD_SIZE; i++) { + rgba[j][i] = 0.0f; + } + } + return; + } sp_get_texels(&sp_samp->sp_sview[sview_index], i, j, k, lod, offset, rgba); } |