draw/i915: move hwfmt array to i915 specific struct

There's no point in bloating the vertex_info struct everywhere with
information that's only used by i915 in a single place. Let's explicitly
store the hwinfo when needed, instead of piggy-backing on vertex_info.

Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23851>

src/gallium/auxiliary/draw/draw_vertex.h

@@ -67,7 +67,6 @@ enum attrib_emit {
 struct vertex_info
 {
    unsigned num_attribs;
-   uint32_t hwfmt[4];  /**< hardware format info for this format */
    unsigned size;      /**< total vertex size in dwords */
 
    /* Keep this small and at the end of the struct to allow quick

src/gallium/drivers/i915/i915_context.h

@@ -155,7 +155,10 @@ struct i915_state {
    unsigned texbuffer[I915_TEX_UNITS][3];
 
    /** Describes the current hardware vertex layout */
-   struct vertex_info vertex_info;
+   struct i915_vertex_info {
+      struct vertex_info draw; /** vertex_info from draw_module */
+      uint32_t hwfmt[4];       /** Hardware format info */
+   } vertex_info;
 
    /* static state (dst/depth buffer state) */
    struct i915_winsys_buffer *cbuf_bo;

src/gallium/drivers/i915/i915_prim_emit.c

@@ -63,7 +63,7 @@ setup_stage(struct draw_stage *stage)
 static inline void
 emit_hw_vertex(struct i915_context *i915, const struct vertex_header *vertex)
 {
-   const struct vertex_info *vinfo = &i915->current.vertex_info;
+   const struct vertex_info *vinfo = &i915->current.vertex_info.draw;
    uint32_t i;
    uint32_t count = 0; /* for debug/sanity */
 
@@ -129,7 +129,7 @@ emit_prim(struct draw_stage *stage, struct prim_header *prim, unsigned hwprim,
       i915_emit_hardware_state(i915);
 
    /* need to do this after validation! */
-   vertex_size = i915->current.vertex_info.size * 4; /* in bytes */
+   vertex_size = i915->current.vertex_info.draw.size * 4; /* in bytes */
    assert(vertex_size >= 12); /* never smaller than 12 bytes */
 
    if (!BEGIN_BATCH(1 + nr * vertex_size / 4)) {

src/gallium/drivers/i915/i915_prim_vbuf.c

@@ -131,7 +131,7 @@ i915_vbuf_render_get_vertex_info(struct vbuf_render *render)
       i915_update_derived(i915);
    }
 
-   return &i915->current.vertex_info;
+   return &i915->current.vertex_info.draw;
 }
 
 /**

src/gallium/drivers/i915/i915_state_derived.c

@@ -45,7 +45,7 @@ static void
 calculate_vertex_layout(struct i915_context *i915)
 {
    const struct i915_fragment_shader *fs = i915->fs;
-   struct vertex_info vinfo;
+   struct i915_vertex_info vinfo;
    bool colors[2], fog, needW, face;
    uint32_t i;
    int src;
@@ -84,20 +84,20 @@ calculate_vertex_layout(struct i915_context *i915)
    /* pos */
    src = draw_find_shader_output(i915->draw, TGSI_SEMANTIC_POSITION, 0);
    if (needW) {
-      draw_emit_vertex_attr(&vinfo, EMIT_4F, src);
+      draw_emit_vertex_attr(&vinfo.draw, EMIT_4F, src);
       vinfo.hwfmt[0] |= S4_VFMT_XYZW;
-      vinfo.attrib[0].emit = EMIT_4F;
+      vinfo.draw.attrib[0].emit = EMIT_4F;
    } else {
-      draw_emit_vertex_attr(&vinfo, EMIT_3F, src);
+      draw_emit_vertex_attr(&vinfo.draw, EMIT_3F, src);
       vinfo.hwfmt[0] |= S4_VFMT_XYZ;
-      vinfo.attrib[0].emit = EMIT_3F;
+      vinfo.draw.attrib[0].emit = EMIT_3F;
    }
 
    /* point size.  if not emitted here, then point size comes from LIS4. */
    if (i915->rasterizer->templ.point_size_per_vertex) {
       src = draw_find_shader_output(i915->draw, TGSI_SEMANTIC_PSIZE, 0);
       if (src != -1) {
-         draw_emit_vertex_attr(&vinfo, EMIT_1F, src);
+         draw_emit_vertex_attr(&vinfo.draw, EMIT_1F, src);
          vinfo.hwfmt[0] |= S4_VFMT_POINT_WIDTH;
       }
    }
@@ -105,21 +105,21 @@ calculate_vertex_layout(struct i915_context *i915)
    /* primary color */
    if (colors[0]) {
       src = draw_find_shader_output(i915->draw, TGSI_SEMANTIC_COLOR, 0);
-      draw_emit_vertex_attr(&vinfo, EMIT_4UB_BGRA, src);
+      draw_emit_vertex_attr(&vinfo.draw, EMIT_4UB_BGRA, src);
       vinfo.hwfmt[0] |= S4_VFMT_COLOR;
    }
 
    /* secondary color */
    if (colors[1]) {
       src = draw_find_shader_output(i915->draw, TGSI_SEMANTIC_COLOR, 1);
-      draw_emit_vertex_attr(&vinfo, EMIT_4UB_BGRA, src);
+      draw_emit_vertex_attr(&vinfo.draw, EMIT_4UB_BGRA, src);
       vinfo.hwfmt[0] |= S4_VFMT_SPEC_FOG;
    }
 
    /* fog coord, not fog blend factor */
    if (fog) {
       src = draw_find_shader_output(i915->draw, TGSI_SEMANTIC_FOG, 0);
-      draw_emit_vertex_attr(&vinfo, EMIT_1F, src);
+      draw_emit_vertex_attr(&vinfo.draw, EMIT_1F, src);
       vinfo.hwfmt[0] |= S4_VFMT_FOG_PARAM;
    }
 
@@ -135,11 +135,11 @@ calculate_vertex_layout(struct i915_context *i915)
              * the draw module by adding an extra shader output.
              */
             mesa_loge("Front/back face is broken\n");
-            draw_emit_vertex_attr(&vinfo, EMIT_1F, src);
+            draw_emit_vertex_attr(&vinfo.draw, EMIT_1F, src);
             hwtc = TEXCOORDFMT_1D;
          } else {
             hwtc = TEXCOORDFMT_4D;
-            draw_emit_vertex_attr(&vinfo, EMIT_4F, src);
+            draw_emit_vertex_attr(&vinfo.draw, EMIT_4F, src);
          }
       } else {
          hwtc = TEXCOORDFMT_NOT_PRESENT;
@@ -147,7 +147,7 @@ calculate_vertex_layout(struct i915_context *i915)
       vinfo.hwfmt[1] |= hwtc << (i * 4);
    }
 
-   draw_compute_vertex_size(&vinfo);
+   draw_compute_vertex_size(&vinfo.draw);
 
    if (memcmp(&i915->current.vertex_info, &vinfo, sizeof(vinfo))) {
       /* Need to set this flag so that the LIS2/4 registers get set.

src/gallium/drivers/i915/i915_state_immediate.c

@@ -70,7 +70,7 @@ upload_S0S1(struct i915_context *i915)
    /* I915_NEW_VERTEX_SIZE
     */
    {
-      unsigned vertex_size = i915->current.vertex_info.size;
+      unsigned vertex_size = i915->current.vertex_info.draw.size;
 
       LIS1 = ((vertex_size << 24) | (vertex_size << 16));
    }