[PATCH 2/5] wined3d: Take the layer index into account in wined3d_shader_resource_view_gl_generate_mipmap().

[Henri Verbeet]

Signed-off-by: Henri Verbeet <hverbeet(a)codeweavers.com>
---
 dlls/wined3d/view.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/dlls/wined3d/view.c b/dlls/wined3d/view.c
index fec7e950a64..cd13da02078 100644
--- a/dlls/wined3d/view.c
+++ b/dlls/wined3d/view.c
@@ -1197,7 +1197,7 @@ static void shader_resource_view_gl_bind_and_dirtify(struct wined3d_shader_resou
 void wined3d_shader_resource_view_gl_generate_mipmap(struct wined3d_shader_resource_view_gl *view_gl,
         struct wined3d_context_gl *context_gl)
 {
-    unsigned int i, j, layer_count, level_count, base_level, max_level;
+    unsigned int i, j, layer_count, level_count, base_level, base_layer;
     const struct wined3d_gl_info *gl_info = context_gl->gl_info;
     struct wined3d_texture_gl *texture_gl;
     struct gl_texture *gl_tex;
@@ -1209,14 +1209,16 @@ void wined3d_shader_resource_view_gl_generate_mipmap(struct wined3d_shader_resou
     layer_count = view_gl->v.desc.u.texture.layer_count;
     level_count = view_gl->v.desc.u.texture.level_count;
     base_level = view_gl->v.desc.u.texture.level_idx;
-    max_level = base_level + level_count - 1;
+    base_layer = view_gl->v.desc.u.texture.layer_idx;
 
     texture_gl = wined3d_texture_gl(texture_from_resource(view_gl->v.resource));
     srgb = !!(texture_gl->t.flags & WINED3D_TEXTURE_IS_SRGB);
     location = srgb ? WINED3D_LOCATION_TEXTURE_SRGB : WINED3D_LOCATION_TEXTURE_RGB;
     for (i = 0; i < layer_count; ++i)
     {
-        wined3d_texture_load_location(&texture_gl->t, i * level_count + base_level, &context_gl->c, location);
+        if (!wined3d_texture_load_location(&texture_gl->t,
+                (base_layer + i) * level_count + base_level, &context_gl->c, location))
+            ERR("Failed to load source layer %u.\n", base_layer + i);
     }
 
     if (view_gl->gl_view.name)
@@ -1227,7 +1229,7 @@ void wined3d_shader_resource_view_gl_generate_mipmap(struct wined3d_shader_resou
     {
         wined3d_texture_gl_bind_and_dirtify(texture_gl, context_gl, srgb);
         gl_info->gl_ops.gl.p_glTexParameteri(texture_gl->target, GL_TEXTURE_BASE_LEVEL, base_level);
-        gl_info->gl_ops.gl.p_glTexParameteri(texture_gl->target, GL_TEXTURE_MAX_LEVEL, max_level);
+        gl_info->gl_ops.gl.p_glTexParameteri(texture_gl->target, GL_TEXTURE_MAX_LEVEL, base_level + level_count - 1);
     }
 
     if (gl_info->supported[ARB_SAMPLER_OBJECTS])
@@ -1245,10 +1247,12 @@ void wined3d_shader_resource_view_gl_generate_mipmap(struct wined3d_shader_resou
 
     for (i = 0; i < layer_count; ++i)
     {
-        for (j = base_level + 1; j <= max_level; ++j)
+        for (j = 1; j < level_count; ++j)
         {
-            wined3d_texture_validate_location(&texture_gl->t, i * level_count + j, location);
-            wined3d_texture_invalidate_location(&texture_gl->t, i * level_count + j, ~location);
+            wined3d_texture_validate_location(&texture_gl->t,
+                    (base_layer + i) * level_count + base_level + j, location);
+            wined3d_texture_invalidate_location(&texture_gl->t,
+                    (base_layer + i) * level_count + base_level + j, ~location);
         }
     }
 
-- 
2.20.1