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wined3d: Use wined3d_bit_scan() in find_draw_buffers_mask(). 

Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Józef Kucia 2018-02-28 12:12:37 +01:00 committed by Alexandre Julliard
parent cae8ebab91
commit e27141e015
1 changed files with 5 additions and 7 deletions
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12
dlls/wined3d/context.c
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@ -3128,7 +3128,7 @@ static DWORD find_draw_buffers_mask(const struct wined3d_context *context, const
{
struct wined3d_rendertarget_view * const *rts = state->fb->render_targets;
struct wined3d_shader *ps = state->shader[WINED3D_SHADER_TYPE_PIXEL];
DWORD rt_mask, rt_mask_bits;
DWORD rt_mask, mask;
unsigned int i;
if (wined3d_settings.offscreen_rendering_mode != ORM_FBO)
@ -3138,15 +3138,13 @@ static DWORD find_draw_buffers_mask(const struct wined3d_context *context, const
rt_mask = ps ? ps->reg_maps.rt_mask : 1;
rt_mask &= context->d3d_info->valid_rt_mask;
rt_mask_bits = rt_mask;
i = 0;
while (rt_mask_bits)
mask = rt_mask;
while (mask)
{
rt_mask_bits &= ~(1u << i);
i = wined3d_bit_scan(&mask);
if (!rts[i] || rts[i]->format->id == WINED3DFMT_NULL)
rt_mask &= ~(1u << i);
i++;
}
return rt_mask;