radeonsi: Sampler view state simplification.

We can always use the offset and tiling mode from level 0 and restrict the
first and last mipmap level to be used in the sampler resource.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index c01c3f6..dac64aa 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -1992,7 +1992,7 @@ static struct pipe_sampler_view *si_create_sampler_view(struct pipe_context *ctx
        unsigned format, num_format, /*endian,*/ tiling_index;
        uint32_t pitch = 0;
        unsigned char state_swizzle[4], swizzle[4];
-       unsigned height, depth, width, offset_level, last_level;
+       unsigned height, depth, width;
        int first_non_void;
        uint64_t va;
 
@@ -2039,12 +2039,10 @@ static struct pipe_sampler_view *si_create_sampler_view(struct pipe_context *ctx
        /* not supported any more */
        //endian = si_colorformat_endian_swap(format);
 
-       offset_level = state->u.tex.first_level;
-       last_level = state->u.tex.last_level - offset_level;
-       width = tmp->surface.level[offset_level].npix_x;
-       height = tmp->surface.level[offset_level].npix_y;
-       depth = tmp->surface.level[offset_level].npix_z;
-       pitch = tmp->surface.level[offset_level].nblk_x * util_format_get_blockwidth(state->format);
+       width = tmp->surface.level[0].npix_x;
+       height = tmp->surface.level[0].npix_y;
+       depth = tmp->surface.level[0].npix_z;
+       pitch = tmp->surface.level[0].nblk_x * util_format_get_blockwidth(state->format);
 
        if (texture->target == PIPE_TEXTURE_1D_ARRAY) {
                height = 1;
@@ -2054,7 +2052,7 @@ static struct pipe_sampler_view *si_create_sampler_view(struct pipe_context *ctx
        }
 
        tiling_index = 8;
-       switch (tmp->surface.level[state->u.tex.first_level].mode) {
+       switch (tmp->surface.level[0].mode) {
        case RADEON_SURF_MODE_LINEAR_ALIGNED:
                tiling_index = 8;
                break;
@@ -2095,7 +2093,7 @@ static struct pipe_sampler_view *si_create_sampler_view(struct pipe_context *ctx
        }
 
        va = r600_resource_va(ctx->screen, texture);
-       va += tmp->surface.level[offset_level].offset;
+       va += tmp->surface.level[0].offset;
        view->state[0] = va >> 8;
        view->state[1] = (S_008F14_BASE_ADDRESS_HI(va >> 40) |
                          S_008F14_DATA_FORMAT(format) |
@@ -2106,8 +2104,8 @@ static struct pipe_sampler_view *si_create_sampler_view(struct pipe_context *ctx
                          S_008F1C_DST_SEL_Y(si_map_swizzle(swizzle[1])) |
                          S_008F1C_DST_SEL_Z(si_map_swizzle(swizzle[2])) |
                          S_008F1C_DST_SEL_W(si_map_swizzle(swizzle[3])) |
-                         S_008F1C_BASE_LEVEL(offset_level) |
-                         S_008F1C_LAST_LEVEL(last_level) |
+                         S_008F1C_BASE_LEVEL(state->u.tex.first_level) |
+                         S_008F1C_LAST_LEVEL(state->u.tex.last_level) |
                          S_008F1C_TILING_INDEX(tiling_index) |
                          S_008F1C_TYPE(si_tex_dim(texture->target)));
        view->state[4] = (S_008F20_DEPTH(depth - 1) | S_008F20_PITCH(pitch - 1));