Merge remote branch 'origin/7.8'

[mesa.git] / src / gallium / drivers / softpipe / sp_tex_sample.c

diff --git a/src/gallium/drivers/softpipe/sp_tex_sample.c b/src/gallium/drivers/softpipe/sp_tex_sample.c
index ef7ccf41898e8ff93d15bccd9a4fbfbe113626bd..ff83c66d8b25f8afe73fd3d77822014f3dbe6e04 100644 (file)
--- a/src/gallium/drivers/softpipe/sp_tex_sample.c
+++ b/src/gallium/drivers/softpipe/sp_tex_sample.c
@@ -547,7 +547,7 @@ compute_lambda_1d(const struct sp_sampler_varient *samp,
                   const float t[QUAD_SIZE],
                   const float p[QUAD_SIZE])
 {
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
    float dsdy = fabsf(s[QUAD_TOP_LEFT]     - s[QUAD_BOTTOM_LEFT]);
    float rho = MAX2(dsdx, dsdy) * texture->width0;
@@ -562,7 +562,7 @@ compute_lambda_2d(const struct sp_sampler_varient *samp,
                   const float t[QUAD_SIZE],
                   const float p[QUAD_SIZE])
 {
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
    float dsdy = fabsf(s[QUAD_TOP_LEFT]     - s[QUAD_BOTTOM_LEFT]);
    float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]);
@@ -581,7 +581,7 @@ compute_lambda_3d(const struct sp_sampler_varient *samp,
                   const float t[QUAD_SIZE],
                   const float p[QUAD_SIZE])
 {
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
    float dsdy = fabsf(s[QUAD_TOP_LEFT]     - s[QUAD_BOTTOM_LEFT]);
    float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]);
@@ -651,7 +651,7 @@ static INLINE const float *
 get_texel_2d(const struct sp_sampler_varient *samp,
             union tex_tile_address addr, int x, int y)
 {
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    unsigned level = addr.bits.level;
 
    if (x < 0 || x >= (int) u_minify(texture->width0, level) ||
@@ -744,7 +744,7 @@ static INLINE const float *
 get_texel_3d(const struct sp_sampler_varient *samp,
             union tex_tile_address addr, int x, int y, int z)
 {
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    unsigned level = addr.bits.level;
 
    if (x < 0 || x >= (int) u_minify(texture->width0, level) ||
@@ -932,7 +932,7 @@ img_filter_1d_nearest(struct tgsi_sampler *tgsi_sampler,
                         float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    unsigned level0, j;
    int width;
    int x[4];
@@ -968,7 +968,7 @@ img_filter_2d_nearest(struct tgsi_sampler *tgsi_sampler,
                       float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    unsigned level0, j;
    int width, height;
    int x[4], y[4];
@@ -1016,7 +1016,7 @@ img_filter_cube_nearest(struct tgsi_sampler *tgsi_sampler,
                         float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    const unsigned *faces = samp->faces; /* zero when not cube-mapping */
    unsigned level0, j;
    int width, height;
@@ -1056,7 +1056,7 @@ img_filter_3d_nearest(struct tgsi_sampler *tgsi_sampler,
                       float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    unsigned level0, j;
    int width, height, depth;
    int x[4], y[4], z[4];
@@ -1098,7 +1098,7 @@ img_filter_1d_linear(struct tgsi_sampler *tgsi_sampler,
                      float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    unsigned level0, j;
    int width;
    int x0[4], x1[4];
@@ -1138,7 +1138,7 @@ img_filter_2d_linear(struct tgsi_sampler *tgsi_sampler,
                      float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    unsigned level0, j;
    int width, height;
    int x0[4], y0[4], x1[4], y1[4];
@@ -1185,7 +1185,7 @@ img_filter_cube_linear(struct tgsi_sampler *tgsi_sampler,
                        float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    const unsigned *faces = samp->faces; /* zero when not cube-mapping */
    unsigned level0, j;
    int width, height;
@@ -1234,7 +1234,7 @@ img_filter_3d_linear(struct tgsi_sampler *tgsi_sampler,
                      float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    unsigned level0, j;
    int width, height, depth;
    int x0[4], x1[4], y0[4], y1[4], z0[4], z1[4];
@@ -1310,7 +1310,7 @@ mip_filter_linear(struct tgsi_sampler *tgsi_sampler,
                   float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    int level0;
    float lambda;
    float lod[QUAD_SIZE];
@@ -1373,7 +1373,7 @@ mip_filter_nearest(struct tgsi_sampler *tgsi_sampler,
                    float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    float lambda;
    float lod[QUAD_SIZE];
 
@@ -1461,7 +1461,7 @@ mip_filter_linear_2d_linear_repeat_POT(
    float rgba[NUM_CHANNELS][QUAD_SIZE])
 {
    struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
-   const struct pipe_texture *texture = samp->texture;
+   const struct pipe_resource *texture = samp->texture;
    int level0;
    float lambda;
    float lod[QUAD_SIZE];
@@ -1614,7 +1614,6 @@ sample_cube(struct tgsi_sampler *tgsi_sampler,
    struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
    unsigned j;
    float ssss[4], tttt[4];
-   unsigned face;
 
    /*
      major axis
@@ -1628,7 +1627,8 @@ sample_cube(struct tgsi_sampler *tgsi_sampler,
      -rz          TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT    -rx    -ry   rz
    */
 
-   /* First choose the cube face.
+   /* Choose the cube face and compute new s/t coords for the 2D face.
+    *
     * Use the same cube face for all four pixels in the quad.
     *
     * This isn't ideal, but if we want to use a different cube face
@@ -1647,85 +1647,37 @@ sample_cube(struct tgsi_sampler *tgsi_sampler,
       const float arx = fabsf(rx), ary = fabsf(ry), arz = fabsf(rz);
 
       if (arx >= ary && arx >= arz) {
-         if (rx >= 0.0F) {
-            face = PIPE_TEX_FACE_POS_X;
-         }
-         else {
-            face = PIPE_TEX_FACE_NEG_X;
+         float sign = (rx >= 0.0F) ? 1.0F : -1.0F;
+         uint face = (rx >= 0.0F) ? PIPE_TEX_FACE_POS_X : PIPE_TEX_FACE_NEG_X;
+         for (j = 0; j < QUAD_SIZE; j++) {
+            const float ima = -0.5F / fabsf(s[j]);
+            ssss[j] = sign *  p[j] * ima + 0.5F;
+            tttt[j] =         t[j] * ima + 0.5F;
+            samp->faces[j] = face;
          }
       }
       else if (ary >= arx && ary >= arz) {
-         if (ry >= 0.0F) {
-            face = PIPE_TEX_FACE_POS_Y;
-         }
-         else {
-            face = PIPE_TEX_FACE_NEG_Y;
+         float sign = (ry >= 0.0F) ? 1.0F : -1.0F;
+         uint face = (ry >= 0.0F) ? PIPE_TEX_FACE_POS_Y : PIPE_TEX_FACE_NEG_Y;
+         for (j = 0; j < QUAD_SIZE; j++) {
+            const float ima = -0.5F / fabsf(t[j]);
+            ssss[j] =        -s[j] * ima + 0.5F;
+            tttt[j] = sign * -p[j] * ima + 0.5F;
+            samp->faces[j] = face;
          }
       }
       else {
-         if (rz > 0.0F) {
-            face = PIPE_TEX_FACE_POS_Z;
-         }
-         else {
-            face = PIPE_TEX_FACE_NEG_Z;
+         float sign = (rz >= 0.0F) ? 1.0F : -1.0F;
+         uint face = (rz >= 0.0F) ? PIPE_TEX_FACE_POS_Z : PIPE_TEX_FACE_NEG_Z;
+         for (j = 0; j < QUAD_SIZE; j++) {
+            const float ima = -0.5 / fabsf(p[j]);
+            ssss[j] = sign * -s[j] * ima + 0.5F;
+            tttt[j] =         t[j] * ima + 0.5F;
+            samp->faces[j] = face;
          }
       }
    }
 
-   /* Now compute the 2D _face_ texture coords from the
-    * 3D _cube_ texture coords.
-    */
-   for (j = 0; j < QUAD_SIZE; j++) {
-      const float rx = s[j], ry = t[j], rz = p[j];
-      const float arx = fabsf(rx), ary = fabsf(ry), arz = fabsf(rz);
-      float sc, tc, ma;
-
-      switch (face) {
-      case PIPE_TEX_FACE_POS_X:
-         sc = -rz;
-         tc = -ry;
-         ma = arx;
-         break;
-      case PIPE_TEX_FACE_NEG_X:
-         sc = rz;
-         tc = -ry;
-         ma = arx;
-         break;
-      case PIPE_TEX_FACE_POS_Y:
-         sc = rx;
-         tc = rz;
-         ma = ary;
-         break;
-      case PIPE_TEX_FACE_NEG_Y:
-         sc = rx;
-         tc = -rz;
-         ma = ary;
-         break;
-      case PIPE_TEX_FACE_POS_Z:
-         sc = rx;
-         tc = -ry;
-         ma = arz;
-         break;
-      case PIPE_TEX_FACE_NEG_Z:
-         sc = -rx;
-         tc = -ry;
-         ma = arz;
-         break;
-      default:
-         assert(0 && "bad cube face");
-         sc = 0.0F;
-         tc = 0.0F;
-         ma = 0.0F;
-      }
-
-      {
-        const float ima = 1.0 / ma;
-        ssss[j] = ( sc * ima + 1.0F ) * 0.5F;
-        tttt[j] = ( tc * ima + 1.0F ) * 0.5F;
-        samp->faces[j] = face;
-      }
-   }
-
    /* In our little pipeline, the compare stage is next.  If compare
     * is not active, this will point somewhere deeper into the
     * pipeline, eg. to mip_filter or even img_filter.
@@ -1915,7 +1867,7 @@ get_img_filter(const union sp_sampler_key key,
 void
 sp_sampler_varient_bind_texture( struct sp_sampler_varient *samp,
                                  struct softpipe_tex_tile_cache *tex_cache,
-                                 const struct pipe_texture *texture )
+                                 const struct pipe_resource *texture )
 {
    const struct pipe_sampler_state *sampler = samp->sampler;