gallium: Have pipe_buffer_* receive a pipe_screen instead of a pipe_context.

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

diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c
index 1d7a1fffe4da3ba16a7bd04761aed65c726f4cbe..c283e3e41085eda82ba806f2c8d2f7824f38dca4 100644 (file)
--- a/src/gallium/drivers/softpipe/sp_texture.c
+++ b/src/gallium/drivers/softpipe/sp_texture.c
@@ -33,8 +33,9 @@
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
 #include "pipe/p_inlines.h"
-#include "pipe/p_util.h"
 #include "pipe/p_winsys.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
 
 #include "sp_context.h"
 #include "sp_state.h"
@@ -71,13 +72,15 @@ softpipe_texture_layout(struct pipe_screen *screen,
       pt->width[level] = width;
       pt->height[level] = height;
       pt->depth[level] = depth;
-      spt->pitch[level] = width;
+      pt->nblocksx[level] = pf_get_nblocksx(&pt->block, width);  
+      pt->nblocksy[level] = pf_get_nblocksy(&pt->block, height);  
+      spt->stride[level] = pt->nblocksx[level]*pt->block.size;
 
       spt->level_offset[level] = buffer_size;
 
-      buffer_size += (((pt->compressed) ? MAX2(1, height/4) : height) *
+      buffer_size += (pt->nblocksy[level] *
                       ((pt->target == PIPE_TEXTURE_CUBE) ? 6 : depth) *
-                      width * pt->cpp);
+                      spt->stride[level]);
 
       width  = minify(width);
       height = minify(height);
@@ -120,8 +123,10 @@ softpipe_displaytarget_layout(struct pipe_screen *screen,
       
    /* Now extract the goodies: 
     */
+   spt->base.nblocksx[0] = pf_get_nblocksx(&spt->base.block, spt->base.width[0]);  
+   spt->base.nblocksy[0] = pf_get_nblocksy(&spt->base.block, spt->base.height[0]);  
+   spt->stride[0] = surf.stride;
    spt->buffer = surf.buffer;
-   spt->pitch[0] = surf.pitch;
 
    return spt->buffer != NULL;
 }
@@ -160,6 +165,39 @@ softpipe_texture_create(struct pipe_screen *screen,
 }
 
 
+static struct pipe_texture *
+softpipe_texture_blanket(struct pipe_screen * screen,
+                         const struct pipe_texture *base,
+                         const unsigned *stride,
+                         struct pipe_buffer *buffer)
+{
+   struct softpipe_texture *spt;
+   assert(screen);
+
+   /* Only supports one type */
+   if (base->target != PIPE_TEXTURE_2D ||
+       base->last_level != 0 ||
+       base->depth[0] != 1) {
+      return NULL;
+   }
+
+   spt = CALLOC_STRUCT(softpipe_texture);
+   if (!spt)
+      return NULL;
+
+   spt->base = *base;
+   spt->base.refcount = 1;
+   spt->base.screen = screen;
+   spt->base.nblocksx[0] = pf_get_nblocksx(&spt->base.block, spt->base.width[0]);  
+   spt->base.nblocksy[0] = pf_get_nblocksy(&spt->base.block, spt->base.height[0]);  
+   spt->stride[0] = stride[0];
+
+   pipe_buffer_reference(screen, &spt->buffer, buffer);
+
+   return &spt->base;
+}
+
+
 static void
 softpipe_texture_release(struct pipe_screen *screen,
                          struct pipe_texture **pt)
@@ -170,7 +208,7 @@ softpipe_texture_release(struct pipe_screen *screen,
    if (--(*pt)->refcount <= 0) {
       struct softpipe_texture *spt = softpipe_texture(*pt);
 
-      pipe_buffer_reference(screen->winsys, &spt->buffer, NULL);
+      pipe_buffer_reference(screen, &spt->buffer, NULL);
       FREE(spt);
    }
    *pt = NULL;
@@ -193,12 +231,14 @@ softpipe_get_tex_surface(struct pipe_screen *screen,
    if (ps) {
       assert(ps->refcount);
       assert(ps->winsys);
-      pipe_buffer_reference(ws, &ps->buffer, spt->buffer);
+      pipe_buffer_reference(screen, &ps->buffer, spt->buffer);
       ps->format = pt->format;
-      ps->cpp = pt->cpp;
+      ps->block = pt->block;
       ps->width = pt->width[level];
       ps->height = pt->height[level];
-      ps->pitch = ps->width;
+      ps->nblocksx = pt->nblocksx[level];
+      ps->nblocksy = pt->nblocksy[level];
+      ps->stride = spt->stride[level];
       ps->offset = spt->level_offset[level];
       ps->usage = usage;
       
@@ -207,12 +247,19 @@ softpipe_get_tex_surface(struct pipe_screen *screen,
        * done with the CPU.  Let's adjust the flags to take that into
        * account.
        */
-      if (ps->usage & PIPE_BUFFER_USAGE_GPU_WRITE)
-         ps->usage |= PIPE_BUFFER_USAGE_CPU_WRITE;
+      if (ps->usage & PIPE_BUFFER_USAGE_GPU_WRITE) {
+         /* GPU_WRITE means "render" and that can involve reads (blending) */
+         ps->usage |= PIPE_BUFFER_USAGE_CPU_WRITE | PIPE_BUFFER_USAGE_CPU_READ;
+      }
 
       if (ps->usage & PIPE_BUFFER_USAGE_GPU_READ)
          ps->usage |= PIPE_BUFFER_USAGE_CPU_READ;
 
+      if (ps->usage & (PIPE_BUFFER_USAGE_CPU_WRITE |
+                       PIPE_BUFFER_USAGE_GPU_WRITE)) {
+         /* Mark the surface as dirty.  The tile cache will look for this. */
+         spt->modified = TRUE;
+      }
 
       pipe_texture_reference(&ps->texture, pt); 
       ps->face = face;
@@ -221,8 +268,8 @@ softpipe_get_tex_surface(struct pipe_screen *screen,
 
       if (pt->target == PIPE_TEXTURE_CUBE || pt->target == PIPE_TEXTURE_3D) {
         ps->offset += ((pt->target == PIPE_TEXTURE_CUBE) ? face : zslice) *
-                      (pt->compressed ? ps->height/4 : ps->height) *
-                      ps->width * ps->cpp;
+                      ps->nblocksy *
+                      ps->stride;
       }
       else {
         assert(face == 0);
@@ -298,6 +345,7 @@ void
 softpipe_init_screen_texture_funcs(struct pipe_screen *screen)
 {
    screen->texture_create = softpipe_texture_create;
+   screen->texture_blanket = softpipe_texture_blanket;
    screen->texture_release = softpipe_texture_release;
 
    screen->get_tex_surface = softpipe_get_tex_surface;