wined3d: Allow decompression blits on system memory resources in arbfp_blit_supported().

In general we prefer to do blits between system memory resources on the CPU, but decompressing DXTn formats in particular is problematic. Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

wined3d: Allow decompression blits on system memory resources in arbfp_blit_supported().
f576e5c0 · Henri Verbeet · Alexandre Julliard · f4580e2a · f576e5c0
Commit f576e5c0 authored Feb 08, 2017 by Henri Verbeet Committed by Alexandre Julliard Feb 08, 2017
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arb_program_shader.c dlls/wined3d/arb_program_shader.c +4 -1

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--- a/dlls/wined3d/arb_program_shader.c
+++ b/dlls/wined3d/arb_program_shader.c
@@ -7713,6 +7713,7 @@ static BOOL arbfp_blit_supported(const struct wined3d_gl_info *gl_info,
        const RECT *dst_rect, DWORD dst_usage, enum wined3d_pool dst_pool, const struct wined3d_format *dst_format)
 {
    enum complex_fixup src_fixup;
+    BOOL decompress;

    if (!gl_info->supported[ARB_FRAGMENT_PROGRAM])
        return FALSE;
@@ -7735,7 +7736,9 @@ static BOOL arbfp_blit_supported(const struct wined3d_gl_info *gl_info,
            return FALSE;
    }

-    if (src_pool == WINED3D_POOL_SYSTEM_MEM || dst_pool == WINED3D_POOL_SYSTEM_MEM)
+    decompress = src_format && (src_format->flags[WINED3D_GL_RES_TYPE_TEX_2D] & WINED3DFMT_FLAG_COMPRESSED)
+            && !(dst_format->flags[WINED3D_GL_RES_TYPE_TEX_2D] & WINED3DFMT_FLAG_COMPRESSED);
+    if (!decompress && (dst_pool == WINED3D_POOL_SYSTEM_MEM || src_pool == WINED3D_POOL_SYSTEM_MEM))
        return FALSE;

    src_fixup = get_complex_fixup(src_format->color_fixup);