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backend-drm: Move plane-type-specific checks to switch statement
This makes it a bit more clear and easy to follow, rather than diving through if nesting. Signed-off-by: Daniel Stone <daniels@collabora.com>
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@ -682,15 +682,24 @@ drm_output_prepare_plane_view(struct drm_output_state *state,
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possible_plane_mask &= ~(1 << plane->plane_idx);
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if (plane->type == WDRM_PLANE_TYPE_CURSOR &&
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(plane != output->cursor_plane || !shmbuf)) {
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continue;
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}
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if (plane->type == WDRM_PLANE_TYPE_PRIMARY &&
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(plane != output->scanout_plane ||
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mode != DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY)) {
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continue;
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switch (plane->type) {
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case WDRM_PLANE_TYPE_CURSOR:
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assert(shmbuf);
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assert(plane == output->cursor_plane);
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break;
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case WDRM_PLANE_TYPE_PRIMARY:
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assert(fb);
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if (plane != output->scanout_plane)
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continue;
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if (mode != DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY)
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continue;
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break;
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case WDRM_PLANE_TYPE_OVERLAY:
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assert(fb);
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assert(mode != DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY);
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break;
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default:
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assert(false && "unknown plane type");
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}
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if (!drm_plane_is_available(plane, output))
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